diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 9daa31016dca8890ef8ce64396e0f6ebe9a41462..0c5d3e0a7c7fc333c3fd7b012f04f4b40f244e33 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -1,5 +1,5 @@
 <!--  Thanks for sending a pull request!
-Read https://github.com/apache/dubbo-go/blob/master/contributing.md before commit pull request. 
+Read https://github.com/apache/dubbo-go/blob/master/contributing.md before commit pull request.
 -->
 
 **What this PR does**:
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 6e7fb6b4ac7048604883304adbeb6af9f7a98b79..6ce02861026b4ee7e13f199c29ca74a9f78ffd32 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -8,11 +8,13 @@ updates:
   - package-ecosystem: "gomod" # See documentation for possible values
     directory: "/" # Location of package manifests
     schedule:
-      interval: "daily"
+      interval: "weekly"
+    target-branch: "develop"
 
   - package-ecosystem: "github-actions"
     # Workflow files stored in the
     # default location of `.github/workflows`
     directory: "/"
     schedule:
-      interval: "daily"
\ No newline at end of file
+      interval: "weekly"
+    target-branch: "develop"
\ No newline at end of file
diff --git a/.github/workflows/github-actions.yml b/.github/workflows/github-actions.yml
index 975a2a7520a7d17cac1a60e2544af1720cf10e44..c0bc08574a2f46788cbe1940dea18c399e31529c 100644
--- a/.github/workflows/github-actions.yml
+++ b/.github/workflows/github-actions.yml
@@ -35,7 +35,7 @@ jobs:
       uses: actions/checkout@v2
 
     - name: Cache dependencies
-      uses: actions/cache@v2
+      uses: actions/cache@v2.1.4
       with:
         # Cache
         path: ~/go/pkg/mod
@@ -54,13 +54,24 @@ jobs:
             go get -v -t -d ./...
         fi
 
+    - name: gofmt
+      run: |
+        go fmt ./... && git checkout -- go.mod && git status && [[ -z `git status -s` ]]
+        # diff -u <(echo -n) <(gofmt -d -s .)
+
+    - name: Install go ci lint
+      run: curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.27.0
+
+    - name: Run Linter
+      run: golangci-lint run --timeout=10m -v
+
     - name: Verify
       run: |
         make verify
 
-    - name: Integrate Test
-      run: |
-        chmod +x integrate_test.sh && ./integrate_test.sh
+#    - name: Integrate Test
+#      run: |
+#        chmod +x integrate_test.sh && ./integrate_test.sh ${{github.event.pull_request.head.repo.full_name}} ${{github.event.pull_request.head.sha}}
 
     - name: Post Coverage
       run: bash <(curl -s https://codecov.io/bash)
@@ -68,43 +79,3 @@ jobs:
     - name: Hello world
       run: echo Hello world ${{ secrets.DING_TOKEN }} ${{ secrets.DING_SIGN }}
 
-      # Because the contexts of push and PR are different, there are two Notify.
-      # Notifications are triggered only in the dubbogo/gost repository.
-    - name: DingTalk Message Notify only Push
-      uses: zcong1993/actions-ding@v3.0.1
-      # Whether job is successful or not, always () is always true.
-      if: |
-        always() &&
-        github.event_name == 'push' &&
-        github.repository == 'apache/dubbo-go'
-      with:
-        # DingDing bot token
-        dingToken: ${{ env.DING_TOKEN }}
-        secret: ${{ env.DING_SIGN }}
-        # Post Body to send
-        body: |
-          {
-            "msgtype": "markdown",
-            "markdown": {
-                "title": "Github Actions",
-                "text": "## Github Actions \n - name: CI \n - repository: ${{ github.repository }} \n - trigger: ${{ github.actor }} \n - event: ${{ github.event_name }} \n - ref: ${{ github.ref }} \n - status: [${{ job.status	}}](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}) \n - environment: ${{ runner.os }} \n > SHA: [${{ github.sha }}](${{ github.event.compare }})"
-            }
-          }
-
-    - name: DingTalk Message Notify only PR
-      uses: zcong1993/actions-ding@v3.0.1
-      if: |
-        always() &&
-        github.event_name == 'pull_request' &&
-        github.repository == 'dubbogo/gost'
-      with:
-        dingToken: ${{ env.DING_TOKEN }}
-        secret: ${{ env.DING_SIGN }}
-        body: |
-          {
-            "msgtype": "markdown",
-            "markdown": {
-                "title": "Github Actions",
-                "text": "## Github Actions \n - name: CI \n - repository: ${{ github.repository }} \n - pr_title: **${{ github.event.pull_request.title }}** \n - trigger: ${{ github.actor }} \n - event: ${{ github.event_name }} \n - ref: [${{ github.ref }}](${{ github.event.pull_request._links.html.href }}) \n - status: [${{ job.status	}}](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}) \n - environment: ${{ runner.os }} \n > SHA: [${{ github.sha }}](${{ github.event.pull_request._links.html.href }})"
-            }
-          }
diff --git a/.golangci.yml b/.golangci.yml
new file mode 100644
index 0000000000000000000000000000000000000000..6f214f445ac5544b26d4fa704b7ea4524535f8bd
--- /dev/null
+++ b/.golangci.yml
@@ -0,0 +1,63 @@
+linters-settings:
+  govet:
+    check-shadowing: true
+  golint:
+    min-confidence: 0
+  gocyclo:
+    min-complexity: 10
+  maligned:
+    suggest-new: true
+  dupl:
+    threshold: 100
+  goconst:
+    min-len: 2
+    min-occurrences: 2
+  depguard:
+    list-type: blacklist
+    packages:
+      # logging is allowed only by logutils.Log, logrus
+      # is allowed to use only in logutils package
+      - github.com/sirupsen/logrus
+  misspell:
+    locale: US
+  lll:
+    line-length: 140
+  goimports:
+    local-prefixes: github.com/golangci/golangci-lint
+  gocritic:
+    enabled-tags:
+      - performance
+      - style
+      - experimental
+    disabled-checks:
+      - wrapperFunc
+
+linters:
+  disable-all: true
+  enable:
+    - govet
+    - staticcheck
+    - ineffassign
+    - misspell
+
+run:
+  skip-dirs:
+    - test/testdata_etc
+    - pkg/golinters/goanalysis/(checker|passes)
+
+issues:
+  exclude-rules:
+    - text: "weak cryptographic primitive"
+      linters:
+        - gosec
+    - linters:
+        - staticcheck
+      text: "SA1019:"
+
+# golangci.com configuration
+# https://github.com/golangci/golangci/wiki/Configuration
+service:
+  golangci-lint-version: 1.15.x # use the fixed version to not introduce new linters unexpectedly
+  prepare:
+    - echo "here I can run custom commands, but no preparation needed for this repo"
+
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 7b338c277962b1aa4defbf0b285d58cc7c503dbe..0000000000000000000000000000000000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,27 +0,0 @@
-dist: trusty
-sudo: required
-
-# define the dependence env
-language: go
-os:
-  - linux
-go:
-  - "1.13"
-services:
-  - docker
-env:
-  - GO111MODULE=on
-install: true
-
-# define ci-stage
-script:
-  # license-check
-  - make verify
-  # integrate-test
-  - chmod +x integrate_test.sh && ./integrate_test.sh
-
-after_success:
-  - bash <(curl -s https://codecov.io/bash)
-
-notifications:
-  webhooks: https://oapi.dingtalk.com/robot/send?access_token=f5d6237f2c79db584e75604f7f88db1ce1673c8c0e98451217b28fde791e1d4f
diff --git a/CHANGE.md b/CHANGE.md
index e60e0b05039136305bd789d9347b100a55b90ba9..28ffeb812c67105e66447ad1f22c8673f8c5aff4 100644
--- a/CHANGE.md
+++ b/CHANGE.md
@@ -1,5 +1,73 @@
 # Release Notes
 ---
+## 1.5.6
+
+### New Features
+- [Add dubbo-go-cli telnet tool](https://github.com/apache/dubbo-go/pull/818)
+- [Add Prox ImplementFunc to allow override impl](https://github.com/apache/dubbo-go/pull/1019)
+- [Add read configuration path from the command line when start](https://github.com/apache/dubbo-go/pull/1039)
+
+### Enhancement
+- [introduce ConfigPostProcessor extension](https://github.com/apache/dubbo-go/pull/943)
+- [Impl extension of two urls comparison](https://github.com/apache/dubbo-go/pull/854)
+- [using event-driven to let router send signal to notify channel](https://github.com/apache/dubbo-go/pull/976)
+- [lint codes](https://github.com/apache/dubbo-go/pull/941)
+
+### Bugfixes
+- [Fix: generic struct2MapAll key of map keep type](https://github.com/apache/dubbo-go/pull/928)
+- [Fix: when events empty, delete all the invokers](https://github.com/apache/dubbo-go/pull/758)
+- [Fix: file service discovery run in windows](https://github.com/apache/dubbo-go/pull/932)
+- [Fix: make metadata report work without serviceDiscovery](https://github.com/apache/dubbo-go/pull/948)
+- [Fix: consumer invoker cache set nil after the ZK connection is lost](https://github.com/apache/dubbo-go/pull/985)
+- [Fix: integration test in Github action](https://github.com/apache/dubbo-go/pull/1012)
+- [Fix: etcd exit panic](https://github.com/apache/dubbo-go/pull/1013)
+- [Fix: when connect to provider fail, will occur panic](https://github.com/apache/dubbo-go/pull/1021)
+- [Fix: support getty send Length, when the data transfer failed](https://github.com/apache/dubbo-go/pull/1028)
+
+Milestone: [https://github.com/apache/dubbo-go/milestone/7](https://github.com/apache/dubbo-go/milestone/7?closed=1)
+
+## 1.5.5
+
+### New Features
+- [Add Address notification batch mode](https://github.com/apache/dubbo-go/pull/741) 
+- [Add dubbo-gen stream support](https://github.com/apache/dubbo-go/pull/794) 
+- [Add Change verify to Makefile](https://github.com/apache/dubbo-go/pull/831) 
+- [Add more automatic components](https://github.com/apache/dubbo-go/pull/832) 
+- [Add grpc max message size config](https://github.com/apache/dubbo-go/pull/824) 
+
+### Enhancement
+- [when it need local ip, it will get it every time. We can get local ip once, and reused it](https://github.com/apache/dubbo-go/pull/807) 
+- [enhance client's connectivity](https://github.com/apache/dubbo-go/pull/800) 
+- [Imp: get local ip once and reused it](https://github.com/apache/dubbo-go/pull/808) 
+- [Remove unmeaning logic](https://github.com/apache/dubbo-go/pull/855) 
+
+### Bugfixes
+- [Fix: nacos registry can not get namespaceId](https://github.com/apache/dubbo-go/pull/778) [@peaman](https://github.com/peaman)       
+- [Fix: url encode](https://github.com/apache/dubbo-go/pull/802)       
+- [Fix: try to fix too many files open error](https://github.com/apache/dubbo-go/pull/797)       
+- [Fix: refact heartbeat](https://github.com/apache/dubbo-go/pull/889)       
+- [Fix: router_config add &url to url](https://github.com/apache/dubbo-go/pull/910)       
+- [Fix: Router chain can not build immediately when started](https://github.com/apache/dubbo-go/pull/927)       
+- [Fix: client block until timeout when provider return with PackageResponse_Exception](https://github.com/apache/dubbo-go/pull/926)      
+- [Fix: URL.String() data race panic](https://github.com/apache/dubbo-go/pull/944)
+- [Fix: generic "encode hessian.Object"](https://github.com/apache/dubbo-go/pull/945)
+
+### Dependencies
+- [Bump github.com/mitchellh/mapstructure from 1.2.3 to 1.3.3](https://github.com/apache/dubbo-go/pull/838)
+- [Bump github.com/go-resty/resty/v2 from 2.1.0 to 2.3.0](https://github.com/apache/dubbo-go/pull/837)
+- [Bump github.com/opentracing/opentracing-go from 1.1.0 to 1.2.0](https://github.com/apache/dubbo-go/pull/836)
+- [Bump github.com/creasty/defaults from 1.3.0 to 1.5.1](https://github.com/apache/dubbo-go/pull/835)
+- [Bump github.com/dubbogo/gost from 1.9.1 to 1.9.2](https://github.com/apache/dubbo-go/pull/834)
+- [Bump github.com/zouyx/agollo/v3 from 3.4.4 to 3.4.5](https://github.com/apache/dubbo-go/pull/845)
+- [Bump github.com/golang/mock from 1.3.1 to 1.4.4](https://github.com/apache/dubbo-go/pull/844)
+- [Bump github.com/nacos-group/nacos-sdk-go from 1.0.0 to 1.0.1](https://github.com/apache/dubbo-go/pull/843)
+- [Bump github.com/magiconair/properties from 1.8.1 to 1.8.4](https://github.com/apache/dubbo-go/pull/861)
+- [Bump github.com/prometheus/client_golang from 1.1.0 to 1.8.0 ](https://github.com/apache/dubbo-go/pull/860)
+- [Bump go.uber.org/atomic from 1.6.0 to 1.7.0](https://github.com/apache/dubbo-go/pull/859)
+- [](https://github.com/apache/dubbo-go/pull/843)
+
+Milestone: [https://github.com/apache/dubbo-go/milestone/5](https://github.com/apache/dubbo-go/milestone/5?closed=1)
+
 ## 1.4.5
 
 ### Bugfixes
@@ -7,6 +75,51 @@
 
 ## 1.5.4
 
+### Bugfixes
+- [Fix etcd cluster reconnect](https://github.com/apache/dubbo-go/pull/828)
+- [Fix zookeeper deadlock problem](https://github.com/apache/dubbo-go/pull/826)
+- [Fix generic struct2MapAll](https://github.com/apache/dubbo-go/pull/822)
+- [Fix Consumer panic when restart provider](https://github.com/apache/dubbo-go/pull/803)
+- [Fix etcd can not registry](https://github.com/apache/dubbo-go/pull/819) [@lin-jianjun](https://github.com/lin-jianjun)
+- [Fix cannot call go provider service when used by java dubbo 2.7.7 version](https://github.com/apache/dubbo-go/pull/815) [@jack15083](https://github.com/jack15083)
+- [Fix go client quit abnormally when it connects java server](https://github.com/apache/dubbo-go/pull/820) [@wenxuwan](https://github.com/wenxuwan)
+- [Fix sentinel windows issue](https://github.com/apache/dubbo-go/pull/821) [@louyuting](https://github.com/louyuting)
+- [Fix metadata default port](https://github.com/apache/dubbo-go/pull/821) [@sanxun0325](https://github.com/sanxun0325)
+- [Fix consul can not destory](https://github.com/apache/dubbo-go/pull/788) [@LaurenceLiZhixin](https://github.com/LaurenceLiZhixin)
+
+Milestone: [https://github.com/apache/dubbo-go/milestone/6](https://github.com/apache/dubbo-go/milestone/6?closed=1)
+
+## 1.5.3
+
+### New Features
+- [Add consul service discovery](https://github.com/apache/dubbo-go/pull/701) [@zhangshen023](https://github.com/zhangshen023)
+- [Add File system service discovery](https://github.com/apache/dubbo-go/pull/732) [@DogBaoBao](https://github.com/DogBaoBao)
+- [Migrate travis Ci to Github Actions](https://github.com/apache/dubbo-go/pull/752) [@sdttttt](https://github.com/sdttttt)
+- [Add sentinel-golang flow control/circuit breaker](https://github.com/apache/dubbo-go/pull/748) [@louyuting](https://github.com/louyuting)
+- [Add dubbo-go docs and blog into doc directory](https://github.com/apache/dubbo-go/pull/767) [@oaoit](https://github.com/oaoit)
+
+### Enhancement
+- [Add address notification batch mode](https://github.com/apache/dubbo-go/pull/741) [@beiwei30](https://github.com/beiwei30)
+- [Refactor network and codec model](https://github.com/apache/dubbo-go/pull/673) [@fangyincheng](https://github.com/fangyincheng) [@georgehao](https://github.com/georgehao)
+- [Remove unnecessary return and judgement](https://github.com/apache/dubbo-go/pull/730) [@YongHaoWu](https://github.com/YongHaoWu)
+- [Improve exporter append method](https://github.com/apache/dubbo-go/pull/722) [@gaoxinge](https://github.com/gaoxinge)
+- [Refactor for proxyInvoker cannot be extended](https://github.com/apache/dubbo-go/pull/747) [@cvictory](https://github.com/cvictory)
+- [Refactor attachment type from map\[string\]stiring to map\[string\]interface{}](https://github.com/apache/dubbo-go/pull/713) [@cvictory](https://github.com/cvictory)
+- [Improve map access concurrency](https://github.com/apache/dubbo-go/pull/739) [@skyao](https://github.com/skyao)
+- [Improve code quantity](https://github.com/apache/dubbo-go/pull/763) [@gaoxinge](https://github.com/gaoxinge)
+
+### Bugfixes
+- [Fix etcdv3 lease](https://github.com/apache/dubbo-go/pull/738) [@zhangshen023](https://github.com/zhangshen023)
+- [Fix rename SethealthChecker to SetHealthChecker](https://github.com/apache/dubbo-go/pull/746) [@watermelo](https://github.com/watermelo)
+- [Fix init config problem in HystrixFilter](https://github.com/apache/dubbo-go/pull/731) [@YGrylls](https://github.com/YGrylls)
+- [Fix zookeeper listener report error after started](https://github.com/apache/dubbo-go/pull/735) [@wenxuwan](https://github.com/wenxuwan)
+
+Milestone: [https://github.com/apache/dubbo-go/milestone/4](https://github.com/apache/dubbo-go/milestone/4?closed=1)
+
+Project: [https://github.com/apache/dubbo-go/projects/10](https://github.com/apache/dubbo-go/projects/10)
+
+## 1.5.4
+
 ### Bugfixes
 - [Fix etcd cluster reconnect](https://github.com/apache/dubbo-go/pull/828)  
 - [Fix zookeeper deadlock problem](https://github.com/apache/dubbo-go/pull/826)      
@@ -171,7 +284,7 @@ Project: [https://github.com/apache/dubbo-go/projects/8](https://github.com/apac
 - [Add grpc protocol](https://github.com/apache/dubbo-go/pull/311)
 
 ### Enhancement
-    
+
 - [The SIGSYS and SIGSTOP are not supported in windows platform](https://github.com/apache/dubbo-go/pull/262)
 - [Error should be returned when `NewURL` failed](https://github.com/apache/dubbo-go/pull/266)
 - [Split config center GetConfig method](https://github.com/apache/dubbo-go/pull/267)
@@ -181,7 +294,7 @@ Project: [https://github.com/apache/dubbo-go/projects/8](https://github.com/apac
 - [Change zk version and add base_registry](https://github.com/apache/dubbo-go/pull/355)
 
 ### Bugfixes
-    
+
 - [Fix negative wait group count](https://github.com/apache/dubbo-go/pull/253)
 - [After disconnection with ZK registry, cosumer can't listen to provider changes](https://github.com/apache/dubbo-go/pull/258)
 - [The generic filter and default reference filters lack ','](https://github.com/apache/dubbo-go/pull/260)
diff --git a/NOTICE b/NOTICE
index 1120c200c997fe6befbe3f78d95e9bdb8a05a487..e0f4af68f6ce22fb817ba1173663395ee8f2bfd9 100644
--- a/NOTICE
+++ b/NOTICE
@@ -1,5 +1,5 @@
 Apache Dubbo-go
-Copyright 2018-2020 The Apache Software Foundation
+Copyright 2018-2021 The Apache Software Foundation
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).
diff --git a/README.md b/README.md
index c5421b4c6c73dcd816aa77e0131e0dc838fa91d6..66cf5417133a10f30159bf70ad3b1f5ad823c105 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,14 @@
 # Apache Dubbo-go [涓枃](./README_CN.md) #
 
-[![Build Status](https://travis-ci.org/apache/dubbo-go.svg?branch=master)](https://travis-ci.org/apache/dubbo-go)
+[![Build Status](https://github.com/apache/dubbo-go/workflows/CI/badge.svg)](https://travis-ci.org/apache/dubbo-go)
 [![codecov](https://codecov.io/gh/apache/dubbo-go/branch/master/graph/badge.svg)](https://codecov.io/gh/apache/dubbo-go)
 [![go.dev reference](https://img.shields.io/badge/go.dev-reference-007d9c?logo=go&logoColor=white&style=flat-square)](https://pkg.go.dev/github.com/apache/dubbo-go?tab=doc)
 [![Go Report Card](https://goreportcard.com/badge/github.com/apache/dubbo-go)](https://goreportcard.com/report/github.com/apache/dubbo-go)
 ![license](https://img.shields.io/badge/license-Apache--2.0-green.svg)
 
 ---
-Apache Dubbo Go Implementation.
+
+Apache Dubbo Go Implementation to bridge the gap between java and go.
 
 
 ## License
@@ -16,14 +17,14 @@ Apache License, Version 2.0
 
 ## Release note ##
 
+[v1.5.5 - Jan 5, 2021](https://github.com/apache/dubbo-go/releases/tag/v1.5.5)
+
 [v1.4.5 - Nov 18, 2020](https://github.com/apache/dubbo-go/releases/tag/v1.4.5)
 
 [v1.5.4 - Nov 1, 2020](https://github.com/apache/dubbo-go/releases/tag/v1.5.4)
 
 [v1.5.3 - Sep 23, 2020](https://github.com/apache/dubbo-go/releases/tag/v1.5.3)
 
-[v1.5.2 - discard]()
-
 [v1.5.1 - Aug 23, 2020](https://github.com/apache/dubbo-go/releases/tag/v1.5.1)
 
 [v1.5.0 - July 24, 2020](https://github.com/apache/dubbo-go/releases/tag/v1.5.0)
@@ -44,7 +45,7 @@ Both extension module and layered project architecture is according to Apache Du
 
 ![dubbo go extend](./doc/pic/arch/dubbo-go-ext.png)
 
-If you wanna know more about dubbo-go, please visit this reference [Project Architecture design](https://github.com/apache/dubbo-go/wiki/dubbo-go-V1.0-design)
+If you want to know more about dubbo-go, please visit this reference [Project Architecture design](https://github.com/apache/dubbo-go/wiki/dubbo-go-V1.0-design)
 
 ## Feature list ##
 
@@ -134,25 +135,17 @@ Finished List:
     * [Zookeeper](https://github.com/apache/dubbo-go/blob/9a5990d9a9c3d5e6633c0d7d926c156416bcb931/registry/zookeeper/service_discovery.go)
     * [Etcd](https://github.com/apache/dubbo-go/blob/9a5990d9a9c3d5e6633c0d7d926c156416bcb931/registry/etcdv3/service_discovery.go)
 
-- Others:
-    * start check
-    * connecting certain provider
-    * multi-protocols
-    * multi-registries
-    * multi-versions
-    * service group
-
 You can know more about dubbo-go by its [roadmap](https://github.com/apache/dubbo-go/wiki/Roadmap).
 
 ![feature](./doc/pic/arch/dubbo-go-arch.png)
 
 ## Document
 
-https://dubbogo.github.io/dubbo-go-website (**Improving**)
+[dubbo-doc](http://dubbo.apache.org/zh/blog/) or [dubbo-go-doc-list](http://alexstocks.github.io/html/dubbogo.html)
 
 ## Quick Start
 
-[dubbo-go-samples](https://github.com/apache/dubbo-go-samples) shows how to use dubbo-go. Please read the [dubbo-samples/golang/README.md](https://github.com/apache/dubbo-go-samples/blob/master/README.md) carefully to learn how to dispose the configuration and compile the program.
+[dubbo-go-samples](https://github.com/apache/dubbo-go-samples) gives many examples to  tell u how to use dubbo-go. Please read the [dubbo-samples/golang/README.md](https://github.com/apache/dubbo-go-samples/blob/master/README.md) carefully to learn how to dispose the configuration and compile the program.
 
 ## Running unit tests
 
@@ -182,6 +175,30 @@ Please move to [dubbo-samples/golang](https://github.com/dubbogo/dubbo-samples)
 
 If you are willing to do some code contributions and document contributions to [Apache/dubbo-go](https://github.com/apache/dubbo-go), please visit [contribution intro](https://github.com/apache/dubbo-go/blob/master/contributing.md).
 
+## Community
+
+If u want to communicate with our community, pls scan the following  [dubbobo Ding-Ding QR code](https://mmbiz.qpic.cn/mmbiz_jpg/yvBJb5IiafvnHVBdtia30dxA2hKotr9DEckWsZ7aOJcDWDaSVMGwLmYv8GRgIQtqb4C2svicp8nVkMmGy7yKC5tyA/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1) or search our commnity DingDing group code 31363295.
+
+<div>
+<table>
+  <tbody>
+  <tr></tr>
+    <tr>
+      <td align="center"  valign="middle">
+        <a href="http://alexstocks.github.io/html/dubbogo.html" target="_blank">
+          <img width="80px" height="85px" src="./doc/pic/misc/dubbogo-dingding.png">
+        </a>
+      </td>
+    </tr>
+    <tr></tr>
+  </tbody>
+</table>
+</div>
+
+If u want to visit the wechat group, pls add my wechat AlexanderStocks.
+
+We welcome the friends who can give us constructing suggestions instead of known-nothing.
+
 ## Benchmark
 
 Benchmark project [dubbo-go-benchmark](https://github.com/dubbogo/dubbo-go-benchmark).
@@ -190,7 +207,7 @@ About dubbo-go benchmarking report, please refer to [dubbo benchmarking report](
 
 ## [User List](https://github.com/apache/dubbo-go/issues/2)
 
-If you are using [apache/dubbo-go](github.com/apache/dubbo-go) and think that it helps you or want do some contributions to it, please add your company to to [the user list](https://github.com/apache/dubbo-go/issues/2) to let us know your needs.
+If you are using [apache/dubbo-go](https://github.com/apache/dubbo-go) and think that it helps you or want do some contributions to it, please add your company to to [the user list](https://github.com/apache/dubbo-go/issues/2) to let us know your needs.
 
 
 <div>
@@ -253,6 +270,19 @@ If you are using [apache/dubbo-go](github.com/apache/dubbo-go) and think that it
       </td>
     </tr>
     <tr></tr>
+    <tr>
+      <td align="center"  valign="middle">
+        <a href="http://www.mgtv.com" target="_blank">
+          <img width="222px"  src="https://ugc.hitv.com/platform_oss/F6077F1AA82542CDBDD88FD518E6E727.png">
+        </a>
+      </td>
+      <td align="center"  valign="middle">
+        <a href="http://www.dmall.com" target="_blank">
+          <img width="222px"  src="https://mosn.io/images/community/duodian.png">
+        </a>
+      </td>
+    </tr>
+    <tr></tr>
   </tbody>
 </table>
 </div>
diff --git a/README_CN.md b/README_CN.md
index e7875fca9ce2e89745bfa9ee2ae4ef9d5fd250c9..92df996d1c4e1922315df2e2d73790bab78225ce 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -1,13 +1,14 @@
 # Apache Dubbo-go [English](./README.md) #
 
-[![Build Status](https://travis-ci.org/apache/dubbo-go.svg?branch=master)](https://travis-ci.org/apache/dubbo-go)
+[![Build Status](https://github.com/apache/dubbo-go/workflows/CI/badge.svg)](https://travis-ci.org/apache/dubbo-go)
 [![codecov](https://codecov.io/gh/apache/dubbo-go/branch/master/graph/badge.svg)](https://codecov.io/gh/apache/dubbo-go)
 [![go.dev reference](https://img.shields.io/badge/go.dev-reference-007d9c?logo=go&logoColor=white&style=flat-square)](https://pkg.go.dev/github.com/apache/dubbo-go?tab=doc)
 [![Go Report Card](https://goreportcard.com/badge/github.com/apache/dubbo-go)](https://goreportcard.com/report/github.com/apache/dubbo-go)
 ![license](https://img.shields.io/badge/license-Apache--2.0-green.svg)
 
 ---
-Apache Dubbo Go 璇█瀹炵幇
+
+Apache Dubbo Go 璇█瀹炵幇锛屾灦璧穓ava鍜実o涔嬮棿鐨勬ˉ姊侊紝涓� gRPC/Spring Cloud 鐢熸€佷簰鑱斾簰閫氾紝甯﹂Java鐢熸€佷韩鍙椾簯鍘熺敓鏃朵唬鐨勬妧鏈孩鍒┿€�
 
 ## 璇佷功 ##
 
@@ -15,14 +16,14 @@ Apache License, Version 2.0
 
 ## 鍙戝竷鏃ュ織 ##
 
+[v1.5.5 - 2021骞�1鏈�5鏃(https://github.com/apache/dubbo-go/releases/tag/v1.5.5)
+
 [v1.4.5 - 2020骞�11鏈�18鏃(https://github.com/apache/dubbo-go/releases/tag/v1.4.5)
 
 [v1.5.4 - 2020骞�11鏈�1鏃(https://github.com/apache/dubbo-go/releases/tag/v1.5.4)
 
 [v1.5.3 - 2020骞�9鏈�23鏃(https://github.com/apache/dubbo-go/releases/tag/v1.5.3)
 
-[v1.5.2 - 鑸嶅純]()
-
 [v1.5.1 - 2020骞�8鏈�23鏃(https://github.com/apache/dubbo-go/releases/tag/v1.5.1)
 
 [v1.5.0 - 2020骞�7鏈�24鏃(https://github.com/apache/dubbo-go/releases/tag/v1.5.0)
@@ -67,11 +68,11 @@ Apache License, Version 2.0
     * Jsonrpc2.0
     * [gRPC](https://github.com/apache/dubbo-go/pull/311)
     * [RESTful](https://github.com/apache/dubbo-go/pull/352)
-    
+
 - 璺敱鍣�
     * [Condition router](https://github.com/apache/dubbo-go/pull/294)
     * [Health check router](https://github.com/apache/dubbo-go/pull/389)
-    
+
 - 娉ㄥ唽涓績
     * ZooKeeper
     * [etcd v3](https://github.com/apache/dubbo-go/pull/148)
@@ -112,7 +113,7 @@ Apache License, Version 2.0
 
 - 璋冪敤
     * [娉涘寲璋冪敤](https://github.com/apache/dubbo-go/pull/122)
-    
+
 - 鐩戞帶
     * Opentracing API
     * [Prometheus](https://github.com/apache/dubbo-go/pull/342)
@@ -133,25 +134,17 @@ Apache License, Version 2.0
     * [Zookeeper](https://github.com/apache/dubbo-go/blob/9a5990d9a9c3d5e6633c0d7d926c156416bcb931/registry/zookeeper/service_discovery.go)
     * [Etcd](https://github.com/apache/dubbo-go/blob/9a5990d9a9c3d5e6633c0d7d926c156416bcb931/registry/etcdv3/service_discovery.go)
 
-- 鍏朵粬鍔熻兘鏀寔:
-    * 鍚姩鏃舵鏌�
-    * 鏈嶅姟鐩磋繛
-    * 澶氭湇鍔″崗璁�
-    * 澶氭敞鍐屼腑蹇�
-    * 澶氭湇鍔$増鏈�
-    * 鏈嶅姟鍒嗙粍
-
 浣犲彲浠ラ€氳繃璁块棶 [roadmap](https://github.com/apache/dubbo-go/wiki/Roadmap) 鐭ラ亾鏇村鍏充簬 dubbo-go 鐨勪俊鎭€�
 
 ![feature](./doc/pic/arch/dubbo-go-arch.png)
 
 ## 鏂囨。
 
-https://dubbogo.github.io/dubbo-go-website (**瀹屽杽涓�**)
+璇疯闂� [dubbo瀹樻柟鏂囨。涓叧浜� dubbo-go 鐨勭郴鍒楁枃妗(http://dubbo.apache.org/zh/blog/) 鎴� [杩囧線dubbo-go鏂囨。鍒楄〃](http://alexstocks.github.io/html/dubbogo.html)銆�
 
 ## 蹇€熷紑濮� ##
 
-[dubbo-samples/golang](https://github.com/dubbogo/dubbo-samples)杩欎釜椤圭洰鐨勪簨渚嬪睍绀轰簡濡備綍浣跨敤 dubbo-go 銆傝浠旂粏闃呰 [dubbo-samples/golang/README.md](https://github.com/dubbogo/dubbo-samples/blob/master/golang/README.md) 瀛︿範濡備綍澶勭悊閰嶇疆骞剁紪璇戠▼搴忋€�
+[dubbo-samples/golang](https://github.com/apache/dubbo-go-samples)杩欎釜椤圭洰鐨勪簨渚嬪睍绀轰簡濡備綍浣跨敤 dubbo-go 銆傝浠旂粏闃呰 [dubbo-samples/golang/README.md](https://github.com/apache/dubbo-go-samples/blob/master/README.md) 瀛︿範濡備綍澶勭悊閰嶇疆骞剁紪璇戠▼搴忋€�
 
 ## 杩愯鍗曟祴
 
@@ -181,6 +174,30 @@ make test
 
 濡傛灉鎮ㄦ効鎰忕粰 [Apache/dubbo-go](https://github.com/apache/dubbo-go) 璐$尞浠g爜鎴栬€呮枃妗o紝鎴戜滑閮界儹鐑堟杩庛€傚叿浣撹鍙傝€� [contribution intro](https://github.com/apache/dubbo-go/blob/master/contributing.md)銆�
 
+## 绀惧尯
+
+濡傛灉鎯宠闂畼鏂归拤閽夌兢锛岃鍦ㄩ拤閽変腑鎼滅储绀惧尯缇ゅ彿 31363295 鎴栬€� 鎵弿濡備笅[浜岀淮鐮乚(https://mmbiz.qpic.cn/mmbiz_jpg/yvBJb5IiafvnHVBdtia30dxA2hKotr9DEckWsZ7aOJcDWDaSVMGwLmYv8GRgIQtqb4C2svicp8nVkMmGy7yKC5tyA/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1)銆�
+
+<div>
+<table>
+  <tbody>
+  <tr></tr>
+    <tr>
+      <td align="center"  valign="middle">
+        <a href="http://alexstocks.github.io/html/dubbogo.html" target="_blank">
+          <img width="80px" height="85px" src="./doc/pic/misc/dubbogo-dingding.png">
+        </a>
+      </td>
+    </tr>
+    <tr></tr>
+  </tbody>
+</table>
+</div>
+
+濡傛灉鎯冲姞鍏ュ埌绀惧尯寰俊缇わ紝鍙互鍏堟坊鍔犵ぞ鍖鸿礋璐d汉 浜庨洦 鐨勫井淇� AlexanderStocks 銆傛坊鍔犲井淇′箣鍓嶏紝璇峰厛缁� dubbo-go 鐐� star 浣滀负瀵归」鐩殑鏀寔锛屾坊鍔犲ソ鍙嬫椂璇锋姤涓� github ID 浠ヨ繘琛岄獙璇併€�
+
+浣滀负涓€涓淮鎶ゅ凡缁忓府鍔╂瀯寤轰簡缁忓彈澶氬澶у瀷寰湇鍔$郴缁熺殑绀惧尯锛屾垜浠冻浠ヤ负鐜版湁鐨勬垚缁╂劅鍒拌嚜璞€傜ぞ鍖烘杩庤兘鎻愬嚭寤鸿鎬ф剰瑙佽€咃紝鍙煡绱㈠彇鑰呭拰鍠峰瓙璇风粫琛屻€�
+
 ## 鎬ц兘娴嬭瘯 ##
 
 鎬ц兘娴嬭瘯椤圭洰鏄� [dubbo-go-benchmark](https://github.com/dubbogo/dubbo-go-benchmark)銆�
@@ -189,7 +206,7 @@ make test
 
 ## [User List](https://github.com/apache/dubbo-go/issues/2)
 
-鑻ヤ綘姝e湪浣跨敤 [apache/dubbo-go](github.com/apache/dubbo-go) 涓旇涓哄叾鏈夌敤鎴栬€呮兂瀵瑰叾鍋氭敼杩涳紝璇锋坊鍒楄吹鍙镐俊鎭簬 [鐢ㄦ埛鍒楄〃](https://github.com/apache/dubbo-go/issues/2)锛屼互渚挎垜浠煡鏅撱€�
+鑻ヤ綘姝e湪浣跨敤 [apache/dubbo-go](https://github.com/apache/dubbo-go) 涓旇涓哄叾鏈夌敤鎴栬€呮兂瀵瑰叾鍋氭敼杩涳紝璇锋坊鍒楄吹鍙镐俊鎭簬 [鐢ㄦ埛鍒楄〃](https://github.com/apache/dubbo-go/issues/2)锛屼互渚挎垜浠煡鏅撱€�
 
 <div>
 <table>
@@ -251,6 +268,19 @@ make test
       </td>
     </tr>
     <tr></tr>
+    <tr>
+      <td align="center"  valign="middle">
+        <a href="http://www.mgtv.com" target="_blank">
+          <img width="222px"  src="https://ugc.hitv.com/platform_oss/F6077F1AA82542CDBDD88FD518E6E727.png">
+        </a>
+      </td>
+	    <td align="center"  valign="middle">
+        <a href="http://www.dmall.com" target="_blank">
+          <img width="222px"  src="https://mosn.io/images/community/duodian.png">
+        </a>
+      </td>
+    </tr>
+    <tr></tr>
   </tbody>
 </table>
-</div>
\ No newline at end of file
+</div>
diff --git a/cluster/cluster_impl/available_cluster.go b/cluster/cluster_impl/available_cluster.go
index ebd5767e4c320f10c8911cf9ac3f2c81deaafb0e..1f41890f5824ff0e2ca542b923b7cf85a6e3a2a1 100644
--- a/cluster/cluster_impl/available_cluster.go
+++ b/cluster/cluster_impl/available_cluster.go
@@ -39,6 +39,6 @@ func NewAvailableCluster() cluster.Cluster {
 }
 
 // Join returns a baseClusterInvoker instance
-func (cluser *availableCluster) Join(directory cluster.Directory) protocol.Invoker {
+func (cluster *availableCluster) Join(directory cluster.Directory) protocol.Invoker {
 	return NewAvailableClusterInvoker(directory)
 }
diff --git a/cluster/cluster_impl/base_cluster_invoker.go b/cluster/cluster_impl/base_cluster_invoker.go
index ed30559ed3c4b3930e65d6e66d5e91d8619516a1..0d39bff13ee3a917268dd2ee82e8f6aff7ccecbc 100644
--- a/cluster/cluster_impl/base_cluster_invoker.go
+++ b/cluster/cluster_impl/base_cluster_invoker.go
@@ -121,41 +121,49 @@ func (invoker *baseClusterInvoker) doSelect(lb cluster.LoadBalance, invocation p
 
 func (invoker *baseClusterInvoker) doSelectInvoker(lb cluster.LoadBalance, invocation protocol.Invocation, invokers []protocol.Invoker, invoked []protocol.Invoker) protocol.Invoker {
 	if len(invokers) == 0 {
-		logger.Errorf("the invokers of %s is nil. ", invocation.Invoker().GetUrl().ServiceKey())
 		return nil
 	}
+	go protocol.TryRefreshBlackList()
 	if len(invokers) == 1 {
-		return invokers[0]
+		if invokers[0].IsAvailable() {
+			return invokers[0]
+		}
+		protocol.SetInvokerUnhealthyStatus(invokers[0])
+		logger.Errorf("the invokers of %s is nil. ", invokers[0].GetUrl().ServiceKey())
+		return nil
 	}
 
 	selectedInvoker := lb.Select(invokers, invocation)
 
-	//judge to if the selectedInvoker is invoked
-
+	//judge if the selected Invoker is invoked and available
 	if (!selectedInvoker.IsAvailable() && invoker.availablecheck) || isInvoked(selectedInvoker, invoked) {
+		protocol.SetInvokerUnhealthyStatus(selectedInvoker)
+		otherInvokers := getOtherInvokers(invokers, selectedInvoker)
 		// do reselect
-		var reslectInvokers []protocol.Invoker
-
-		for _, invoker := range invokers {
-			if !invoker.IsAvailable() {
+		for i := 0; i < 3; i++ {
+			if len(otherInvokers) == 0 {
+				// no other ivk to reselect, return to fallback
+				break
+			}
+			reselectedInvoker := lb.Select(otherInvokers, invocation)
+			if isInvoked(reselectedInvoker, invoked) {
+				otherInvokers = getOtherInvokers(otherInvokers, reselectedInvoker)
+				continue
+			}
+			if !reselectedInvoker.IsAvailable() {
 				logger.Infof("the invoker of %s is not available, maybe some network error happened or the server is shutdown.",
 					invoker.GetUrl().Ip)
+				protocol.SetInvokerUnhealthyStatus(reselectedInvoker)
+				otherInvokers = getOtherInvokers(otherInvokers, reselectedInvoker)
 				continue
 			}
-
-			if !isInvoked(invoker, invoked) {
-				reslectInvokers = append(reslectInvokers, invoker)
-			}
-		}
-
-		if len(reslectInvokers) > 0 {
-			selectedInvoker = lb.Select(reslectInvokers, invocation)
-		} else {
-			logger.Errorf("all %d invokers is unavailable for %s.", len(invokers), selectedInvoker.GetUrl().String())
-			return nil
+			return reselectedInvoker
 		}
+	} else {
+		return selectedInvoker
 	}
-	return selectedInvoker
+	logger.Errorf("all %d invokers is unavailable for %s.", len(invokers), selectedInvoker.GetUrl().String())
+	return nil
 }
 
 func (invoker *baseClusterInvoker) Invoke(ctx context.Context, invocation protocol.Invocation) protocol.Result {
@@ -194,3 +202,13 @@ func getLoadBalance(invoker protocol.Invoker, invocation protocol.Invocation) cl
 	}
 	return extension.GetLoadbalance(lb)
 }
+
+func getOtherInvokers(invokers []protocol.Invoker, invoker protocol.Invoker) []protocol.Invoker {
+	otherInvokers := make([]protocol.Invoker, 0)
+	for _, i := range invokers {
+		if i != invoker {
+			otherInvokers = append(otherInvokers, i)
+		}
+	}
+	return otherInvokers
+}
diff --git a/cluster/cluster_impl/failback_cluster_invoker.go b/cluster/cluster_impl/failback_cluster_invoker.go
index 62f48045ec6edbc19d6603509fa1ae8c2d4ce9ee..5e0d133a670160df4acf321ea05356cb2a45a8b5 100644
--- a/cluster/cluster_impl/failback_cluster_invoker.go
+++ b/cluster/cluster_impl/failback_cluster_invoker.go
@@ -77,8 +77,7 @@ func (invoker *failbackClusterInvoker) tryTimerTaskProc(ctx context.Context, ret
 	invoked = append(invoked, retryTask.lastInvoker)
 
 	retryInvoker := invoker.doSelect(retryTask.loadbalance, retryTask.invocation, retryTask.invokers, invoked)
-	var result protocol.Result
-	result = retryInvoker.Invoke(ctx, retryTask.invocation)
+	result := retryInvoker.Invoke(ctx, retryTask.invocation)
 	if result.Error() != nil {
 		retryTask.lastInvoker = retryInvoker
 		invoker.checkRetry(retryTask, result.Error())
@@ -121,8 +120,11 @@ func (invoker *failbackClusterInvoker) checkRetry(retryTask *retryTimerTask, err
 	if retryTask.retries > invoker.maxRetries {
 		logger.Errorf("Failed retry times exceed threshold (%v), We have to abandon, invocation-> %v.\n",
 			retryTask.retries, retryTask.invocation)
-	} else {
-		invoker.taskList.Put(retryTask)
+		return
+	}
+
+	if err := invoker.taskList.Put(retryTask); err != nil {
+		logger.Errorf("invoker.taskList.Put(retryTask:%#v) = error:%v", retryTask, err)
 	}
 }
 
diff --git a/cluster/cluster_impl/failback_cluster_test.go b/cluster/cluster_impl/failback_cluster_test.go
index 0edb81d4285fa68ceefd96100b541ba334f95bda..d36e16e2693f0926f8c8e39b6cd328b688ffa4b2 100644
--- a/cluster/cluster_impl/failback_cluster_test.go
+++ b/cluster/cluster_impl/failback_cluster_test.go
@@ -72,6 +72,8 @@ func TestFailbackSuceess(t *testing.T) {
 
 	invoker.EXPECT().GetUrl().Return(failbackUrl).AnyTimes()
 
+	invoker.EXPECT().IsAvailable().Return(true)
+
 	mockResult := &protocol.RPCResult{Rest: rest{tried: 0, success: true}}
 	invoker.EXPECT().Invoke(gomock.Any()).Return(mockResult)
 
@@ -88,6 +90,7 @@ func TestFailbackRetryOneSuccess(t *testing.T) {
 	clusterInvoker := registerFailback(invoker).(*failbackClusterInvoker)
 
 	invoker.EXPECT().GetUrl().Return(failbackUrl).AnyTimes()
+	invoker.EXPECT().IsAvailable().Return(true)
 
 	// failed at first
 	mockFailedResult := &protocol.RPCResult{Err: perrors.New("error")}
@@ -98,6 +101,7 @@ func TestFailbackRetryOneSuccess(t *testing.T) {
 	wg.Add(1)
 	now := time.Now()
 	mockSuccResult := &protocol.RPCResult{Rest: rest{tried: 0, success: true}}
+	invoker.EXPECT().IsAvailable().Return(true)
 	invoker.EXPECT().Invoke(gomock.Any()).DoAndReturn(func(protocol.Invocation) protocol.Result {
 		delta := time.Since(now).Nanoseconds() / int64(time.Second)
 		assert.True(t, delta >= 5)
@@ -131,6 +135,7 @@ func TestFailbackRetryFailed(t *testing.T) {
 	clusterInvoker := registerFailback(invoker).(*failbackClusterInvoker)
 
 	invoker.EXPECT().GetUrl().Return(failbackUrl).AnyTimes()
+	invoker.EXPECT().IsAvailable().Return(true).AnyTimes()
 
 	mockFailedResult := &protocol.RPCResult{Err: perrors.New("error")}
 	invoker.EXPECT().Invoke(gomock.Any()).Return(mockFailedResult)
@@ -177,6 +182,7 @@ func TestFailbackRetryFailed10Times(t *testing.T) {
 	clusterInvoker := registerFailback(invoker).(*failbackClusterInvoker)
 	clusterInvoker.maxRetries = 10
 
+	invoker.EXPECT().IsAvailable().Return(true).AnyTimes()
 	invoker.EXPECT().GetUrl().Return(failbackUrl).AnyTimes()
 
 	// 10 task should failed firstly.
@@ -220,6 +226,7 @@ func TestFailbackOutOfLimit(t *testing.T) {
 	clusterInvoker.failbackTasks = 1
 
 	invoker.EXPECT().GetUrl().Return(failbackUrl).AnyTimes()
+	invoker.EXPECT().IsAvailable().Return(true).AnyTimes()
 
 	mockFailedResult := &protocol.RPCResult{Err: perrors.New("error")}
 	invoker.EXPECT().Invoke(gomock.Any()).Return(mockFailedResult).Times(11)
diff --git a/cluster/cluster_impl/failfast_cluster_test.go b/cluster/cluster_impl/failfast_cluster_test.go
index 77e8e9c5da73bfc8bcf08dbd90351bfd23d7e651..9ac06b8d4a7bec39b08a308cc52fe41e9524b1c0 100644
--- a/cluster/cluster_impl/failfast_cluster_test.go
+++ b/cluster/cluster_impl/failfast_cluster_test.go
@@ -53,6 +53,7 @@ func registerFailfast(invoker *mock.MockInvoker) protocol.Invoker {
 	invokers := []protocol.Invoker{}
 	invokers = append(invokers, invoker)
 
+	invoker.EXPECT().IsAvailable().Return(true).AnyTimes()
 	invoker.EXPECT().GetUrl().Return(failfastUrl)
 
 	staticDir := directory.NewStaticDirectory(invokers)
@@ -67,6 +68,7 @@ func TestFailfastInvokeSuccess(t *testing.T) {
 	invoker := mock.NewMockInvoker(ctrl)
 	clusterInvoker := registerFailfast(invoker)
 
+	invoker.EXPECT().IsAvailable().Return(true).AnyTimes()
 	invoker.EXPECT().GetUrl().Return(failfastUrl).AnyTimes()
 
 	mockResult := &protocol.RPCResult{Rest: rest{tried: 0, success: true}}
@@ -87,6 +89,7 @@ func TestFailfastInvokeFail(t *testing.T) {
 	invoker := mock.NewMockInvoker(ctrl)
 	clusterInvoker := registerFailfast(invoker)
 
+	invoker.EXPECT().IsAvailable().Return(true).AnyTimes()
 	invoker.EXPECT().GetUrl().Return(failfastUrl).AnyTimes()
 
 	mockResult := &protocol.RPCResult{Err: perrors.New("error")}
diff --git a/cluster/cluster_impl/failsafe_cluster_test.go b/cluster/cluster_impl/failsafe_cluster_test.go
index d9a716e1ae65a84b605b4b7af1872b3a85dc9369..5e208bdddee335cc5dff6beed5ab34243831dbb5 100644
--- a/cluster/cluster_impl/failsafe_cluster_test.go
+++ b/cluster/cluster_impl/failsafe_cluster_test.go
@@ -52,6 +52,7 @@ func registerFailsafe(invoker *mock.MockInvoker) protocol.Invoker {
 
 	invokers := []protocol.Invoker{}
 	invokers = append(invokers, invoker)
+	invoker.EXPECT().IsAvailable().Return(true).AnyTimes()
 
 	invoker.EXPECT().GetUrl().Return(failbackUrl)
 
@@ -67,6 +68,8 @@ func TestFailSafeInvokeSuccess(t *testing.T) {
 	invoker := mock.NewMockInvoker(ctrl)
 	clusterInvoker := registerFailsafe(invoker)
 
+	invoker.EXPECT().IsAvailable().Return(true).AnyTimes()
+
 	invoker.EXPECT().GetUrl().Return(failsafeUrl).AnyTimes()
 
 	mockResult := &protocol.RPCResult{Rest: rest{tried: 0, success: true}}
@@ -85,6 +88,7 @@ func TestFailSafeInvokeFail(t *testing.T) {
 
 	invoker := mock.NewMockInvoker(ctrl)
 	clusterInvoker := registerFailsafe(invoker)
+	invoker.EXPECT().IsAvailable().Return(true).AnyTimes()
 
 	invoker.EXPECT().GetUrl().Return(failsafeUrl).AnyTimes()
 
diff --git a/cluster/cluster_impl/zone_aware_cluster_invoker.go b/cluster/cluster_impl/zone_aware_cluster_invoker.go
index 0f52b0442c235d570e4cc9d8491aa80a9df5842d..050f831f06c65c9d3e7cbb5123123281ec55df89 100644
--- a/cluster/cluster_impl/zone_aware_cluster_invoker.go
+++ b/cluster/cluster_impl/zone_aware_cluster_invoker.go
@@ -43,7 +43,7 @@ func newZoneAwareClusterInvoker(directory cluster.Directory) protocol.Invoker {
 	invoke := &zoneAwareClusterInvoker{
 		baseClusterInvoker: newBaseClusterInvoker(directory),
 	}
-	// add self to interceptor
+	// add local to interceptor
 	invoke.interceptor = invoke
 	return invoke
 }
diff --git a/cluster/directory/base_directory.go b/cluster/directory/base_directory.go
index d1025a152b599d70c40bba5bc16009d8d5adee37..309cd4429c7256eccab556369db9b0dd264e7480 100644
--- a/cluster/directory/base_directory.go
+++ b/cluster/directory/base_directory.go
@@ -82,6 +82,8 @@ func (dir *BaseDirectory) SetRouters(urls []*common.URL) {
 
 	routers := make([]router.PriorityRouter, 0, len(urls))
 
+	rc := dir.routerChain
+
 	for _, url := range urls {
 		routerKey := url.GetParam(constant.ROUTER_KEY, "")
 
@@ -94,7 +96,7 @@ func (dir *BaseDirectory) SetRouters(urls []*common.URL) {
 			}
 		}
 		factory := extension.GetRouterFactory(url.Protocol)
-		r, err := factory.NewPriorityRouter(url)
+		r, err := factory.NewPriorityRouter(url, rc.GetNotifyChan())
 		if err != nil {
 			logger.Errorf("Create router fail. router key: %s, url:%s, error: %+v", routerKey, url.Service(), err)
 			return
@@ -104,10 +106,8 @@ func (dir *BaseDirectory) SetRouters(urls []*common.URL) {
 
 	logger.Infof("Init file condition router success, size: %v", len(routers))
 	dir.mutex.Lock()
-	rc := dir.routerChain
-	dir.mutex.Unlock()
-
 	rc.AddRouters(routers)
+	dir.mutex.Unlock()
 }
 
 func (dir *BaseDirectory) isProperRouter(url *common.URL) bool {
diff --git a/cluster/directory/base_directory_test.go b/cluster/directory/base_directory_test.go
index 16e3c5a960912af66739bcc1c5736d44d437503e..443f07de2cc7d420fa8a7caa22709980f522b47b 100644
--- a/cluster/directory/base_directory_test.go
+++ b/cluster/directory/base_directory_test.go
@@ -28,6 +28,7 @@ import (
 )
 
 import (
+	"github.com/apache/dubbo-go/cluster/router/chain"
 	_ "github.com/apache/dubbo-go/cluster/router/condition"
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/common/constant"
@@ -50,7 +51,9 @@ func TestBuildRouterChain(t *testing.T) {
 	regURL := url
 	regURL.AddParam(constant.INTERFACE_KEY, "mock-app")
 	directory := NewBaseDirectory(regURL)
-
+	var err error
+	directory.routerChain, err = chain.NewRouterChain(regURL)
+	assert.Nil(t, err)
 	localIP := common.GetLocalIp()
 	rule := base64.URLEncoding.EncodeToString([]byte("true => " + " host = " + localIP))
 	routeURL := getRouteURL(rule, anyURL)
diff --git a/cluster/loadbalance/random_test.go b/cluster/loadbalance/random_test.go
index b94d7da43d5bd42e6798fca750c8616830a8df8f..c24fdf0556b1323ccfc08a2f9f384c60e2fa2f5e 100644
--- a/cluster/loadbalance/random_test.go
+++ b/cluster/loadbalance/random_test.go
@@ -83,6 +83,7 @@ func TestRandomlbSelectWeight(t *testing.T) {
 		}
 		selectedInvoker = append(selectedInvoker, s)
 	}
+	assert.Equal(t, 10000, len(selectedInvoker))
 
 	assert.Condition(t, func() bool {
 		// really is 0.9999999999999
@@ -114,6 +115,8 @@ func TestRandomlbSelectWarmup(t *testing.T) {
 		}
 		selectedInvoker = append(selectedInvoker, s)
 	}
+	assert.Equal(t, 10000, len(selectedInvoker))
+
 	assert.Condition(t, func() bool {
 		return selected/10000 < 0.1
 	})
diff --git a/cluster/router/.gitkeep b/cluster/router/.gitkeep
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/cluster/router/chain.go b/cluster/router/chain.go
index 3614d0a5a3d6cfb462ef63149ae99da2c4541b8d..cb33cf927fb982ec8e62133d0c68f2dce5e142f3 100644
--- a/cluster/router/chain.go
+++ b/cluster/router/chain.go
@@ -29,4 +29,6 @@ type Chain interface {
 	SetInvokers([]protocol.Invoker)
 	// AddRouters Add routers
 	AddRouters([]PriorityRouter)
+	// GetNotifyChan get notify channel of this chain
+	GetNotifyChan() chan struct{}
 }
diff --git a/cluster/router/chain/chain.go b/cluster/router/chain/chain.go
index 612c12d87d463a86c6f9f85d4167100f55bf25ab..13cb1ff3528414a3c164c6b634cfd92a3cd17664 100644
--- a/cluster/router/chain/chain.go
+++ b/cluster/router/chain/chain.go
@@ -20,12 +20,12 @@ package chain
 import (
 	"sort"
 	"sync"
-	"sync/atomic"
 	"time"
 )
 
 import (
 	perrors "github.com/pkg/errors"
+	"go.uber.org/atomic"
 )
 
 import (
@@ -38,9 +38,7 @@ import (
 )
 
 const (
-	timeInterval   = 5 * time.Second
-	timeThreshold  = 2 * time.Second
-	countThreshold = 5
+	timeInterval = 5 * time.Second
 )
 
 // RouterChain Router chain
@@ -67,6 +65,10 @@ type RouterChain struct {
 	cache atomic.Value
 }
 
+func (c *RouterChain) GetNotifyChan() chan struct{} {
+	return c.notify
+}
+
 // Route Loop routers in RouterChain and call Route method to determine the target invokers list.
 func (c *RouterChain) Route(url *common.URL, invocation protocol.Invocation) []protocol.Invoker {
 	cache := c.loadCache()
@@ -102,6 +104,9 @@ func (c *RouterChain) AddRouters(routers []router.PriorityRouter) {
 	c.mutex.Lock()
 	defer c.mutex.Unlock()
 	c.routers = newRouters
+	go func() {
+		c.notify <- struct{}{}
+	}()
 }
 
 // SetInvokers receives updated invokers from registry center. If the times of notification exceeds countThreshold and
@@ -111,25 +116,21 @@ func (c *RouterChain) SetInvokers(invokers []protocol.Invoker) {
 	c.invokers = invokers
 	c.mutex.Unlock()
 
-	c.count++
-	now := time.Now()
-	if c.count >= countThreshold && now.Sub(c.last) >= timeThreshold {
-		c.last = now
-		c.count = 0
-		go func() {
-			c.notify <- struct{}{}
-		}()
-	}
+	go func() {
+		c.notify <- struct{}{}
+	}()
 }
 
-// loop listens on events to update the address cache when it's necessary, either when it receives notification
-// from address update, or when timeInterval exceeds.
+// loop listens on events to update the address cache  when it receives notification
+// from address update,
 func (c *RouterChain) loop() {
 	ticker := time.NewTicker(timeInterval)
 	for {
 		select {
 		case <-ticker.C:
-			c.buildCache()
+			if protocol.GetAndRefreshState() {
+				c.buildCache()
+			}
 		case <-c.notify:
 			c.buildCache()
 		}
@@ -186,7 +187,7 @@ func (c *RouterChain) copyInvokerIfNecessary(cache *InvokerCache) []protocol.Inv
 func (c *RouterChain) buildCache() {
 	origin := c.loadCache()
 	invokers := c.copyInvokerIfNecessary(origin)
-	if invokers == nil || len(invokers) == 0 {
+	if len(invokers) == 0 {
 		return
 	}
 
@@ -226,9 +227,15 @@ func NewRouterChain(url *common.URL) (*RouterChain, error) {
 	if len(routerFactories) == 0 {
 		return nil, perrors.Errorf("No routerFactory exits , create one please")
 	}
+
+	chain := &RouterChain{
+		last:   time.Now(),
+		notify: make(chan struct{}),
+	}
+
 	routers := make([]router.PriorityRouter, 0, len(routerFactories))
 	for key, routerFactory := range routerFactories {
-		r, err := routerFactory().NewPriorityRouter(url)
+		r, err := routerFactory().NewPriorityRouter(url, chain.notify)
 		if r == nil || err != nil {
 			logger.Errorf("router chain build router fail! routerFactories key:%s  error:%s", key, err.Error())
 			continue
@@ -241,12 +248,10 @@ func NewRouterChain(url *common.URL) (*RouterChain, error) {
 
 	sortRouter(newRouters)
 
-	chain := &RouterChain{
-		builtinRouters: routers,
-		routers:        newRouters,
-		last:           time.Now(),
-		notify:         make(chan struct{}),
-	}
+	routerNeedsUpdateInit := atomic.Bool{}
+	routerNeedsUpdateInit.Store(false)
+	chain.routers = newRouters
+	chain.builtinRouters = routers
 	if url != nil {
 		chain.url = url
 	}
@@ -287,8 +292,10 @@ func isInvokersChanged(left []protocol.Invoker, right []protocol.Invoker) bool {
 
 	for _, r := range right {
 		found := false
+		rurl := r.GetUrl()
 		for _, l := range left {
-			if common.IsEquals(l.GetUrl(), r.GetUrl(), constant.TIMESTAMP_KEY, constant.REMOTE_TIMESTAMP_KEY) {
+			lurl := l.GetUrl()
+			if common.GetCompareURLEqualFunc()(lurl, rurl, constant.TIMESTAMP_KEY, constant.REMOTE_TIMESTAMP_KEY) {
 				found = true
 				break
 			}
diff --git a/cluster/router/chain/chain_test.go b/cluster/router/chain/chain_test.go
index b21990b08c5b960c407a395cddf7ef7518ba5822..779f4c7c000f988d8bd55ff3529b6044d3e9d501 100644
--- a/cluster/router/chain/chain_test.go
+++ b/cluster/router/chain/chain_test.go
@@ -76,8 +76,10 @@ conditions:
 
 	_, err = z.Conn.Set(path, []byte(testyml), 0)
 	assert.NoError(t, err)
-	defer ts.Stop()
-	defer z.Close()
+	defer func() {
+		_ = ts.Stop()
+		z.Close()
+	}()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, localIP, ts.Servers[0].Port))
 	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(zkUrl)
@@ -128,11 +130,15 @@ conditions:
 
 	_, err = z.Conn.Set(path, []byte(testyml), 0)
 	assert.NoError(t, err)
-	defer ts.Stop()
-	defer z.Close()
+	defer func() {
+		_ = ts.Stop()
+		assert.NoError(t, err)
+		z.Close()
+	}()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, localIP, ts.Servers[0].Port))
 	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(zkUrl)
+	assert.NoError(t, err)
 	config.GetEnvInstance().SetDynamicConfiguration(configuration)
 
 	chain, err := NewRouterChain(getConditionRouteUrl(applicationKey))
@@ -142,7 +148,12 @@ conditions:
 	url := getConditionRouteUrl(applicationKey)
 	assert.NotNil(t, url)
 	factory := extension.GetRouterFactory(url.Protocol)
-	r, err := factory.NewPriorityRouter(url)
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
+	r, err := factory.NewPriorityRouter(url, notify)
 	assert.Nil(t, err)
 	assert.NotNil(t, r)
 
@@ -154,11 +165,15 @@ conditions:
 
 func TestRouterChainRoute(t *testing.T) {
 	ts, z, _, err := zookeeper.NewMockZookeeperClient("test", 15*time.Second)
-	defer ts.Stop()
-	defer z.Close()
+	defer func() {
+		err = ts.Stop()
+		assert.NoError(t, err)
+		z.Close()
+	}()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, localIP, ts.Servers[0].Port))
 	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(zkUrl)
+	assert.NoError(t, err)
 	config.GetEnvInstance().SetDynamicConfiguration(configuration)
 
 	chain, err := NewRouterChain(getConditionRouteUrl(applicationKey))
@@ -198,11 +213,15 @@ conditions:
 
 	_, err = z.Conn.Set(path, []byte(testyml), 0)
 	assert.NoError(t, err)
-	defer ts.Stop()
-	defer z.Close()
+	defer func() {
+		_ = ts.Stop()
+		assert.NoError(t, err)
+		z.Close()
+	}()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, localIP, ts.Servers[0].Port))
 	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(zkUrl)
+	assert.NoError(t, err)
 	config.GetEnvInstance().SetDynamicConfiguration(configuration)
 
 	chain, err := NewRouterChain(getConditionRouteUrl(applicationKey))
@@ -224,12 +243,17 @@ conditions:
 
 func TestRouterChainRouteNoRoute(t *testing.T) {
 	ts, z, _, err := zookeeper.NewMockZookeeperClient("test", 15*time.Second)
-	defer ts.Stop()
-	defer z.Close()
+	assert.Nil(t, err)
+	defer func() {
+		_ = ts.Stop()
+		assert.NoError(t, err)
+		z.Close()
+	}()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, localIP, ts.Servers[0].Port))
 	configuration, err := extension.GetConfigCenterFactory(zk).GetDynamicConfiguration(zkUrl)
 	config.GetEnvInstance().SetDynamicConfiguration(configuration)
+	assert.Nil(t, err)
 
 	chain, err := NewRouterChain(getConditionNoRouteUrl(applicationKey))
 	assert.Nil(t, err)
diff --git a/cluster/router/condition/app_router.go b/cluster/router/condition/app_router.go
index 056e32851c11696c80d18a2a55b109fcdae06627..64b3914b87003419c04755b584b06f66d7f05435 100644
--- a/cluster/router/condition/app_router.go
+++ b/cluster/router/condition/app_router.go
@@ -34,14 +34,15 @@ const (
 // AppRouter For listen application router with config center
 type AppRouter struct {
 	listenableRouter
+	notify interface{}
 }
 
 // NewAppRouter Init AppRouter by url
-func NewAppRouter(url *common.URL) (*AppRouter, error) {
+func NewAppRouter(url *common.URL, notify chan struct{}) (*AppRouter, error) {
 	if url == nil {
 		return nil, perrors.Errorf("No route URL for create app router!")
 	}
-	appRouter, err := newListenableRouter(url, url.GetParam(constant.APPLICATION_KEY, ""))
+	appRouter, err := newListenableRouter(url, url.GetParam(constant.APPLICATION_KEY, ""), notify)
 	if err != nil {
 		return nil, err
 	}
diff --git a/cluster/router/condition/app_router_test.go b/cluster/router/condition/app_router_test.go
index 879abc5cc8b607ee9245ce632800b056ff740cc5..f55818df8270924ee26e827ad8bb63645f6fccf5 100644
--- a/cluster/router/condition/app_router_test.go
+++ b/cluster/router/condition/app_router_test.go
@@ -67,8 +67,11 @@ conditions:
 
 	_, err = z.Conn.Set(routerPath, []byte(testYML), 0)
 	assert.NoError(t, err)
-	defer ts.Stop()
-	defer z.Close()
+	defer func() {
+		err = ts.Stop()
+		assert.NoError(t, err)
+		z.Close()
+	}()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, routerLocalIP, ts.Servers[0].Port))
 	configuration, err := extension.GetConfigCenterFactory(routerZk).GetDynamicConfiguration(zkUrl)
@@ -78,7 +81,12 @@ conditions:
 	assert.NotNil(t, configuration)
 
 	appRouteURL := getAppRouteURL(routerKey)
-	appRouter, err := NewAppRouter(appRouteURL)
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
+	appRouter, err := NewAppRouter(appRouteURL, notify)
 	assert.Nil(t, err)
 	assert.NotNil(t, appRouter)
 
@@ -106,7 +114,7 @@ force: true
 runtime: false
 conditions:
   - => host != 172.22.3.91
-  - host = 192.168.199.208 => host = 192.168.199.208 
+  - host = 192.168.199.208 => host = 192.168.199.208
 `
 	ts, z, _, err := zookeeper.NewMockZookeeperClient("test", 15*time.Second)
 	assert.NoError(t, err)
@@ -115,8 +123,11 @@ conditions:
 
 	_, err = z.Conn.Set(routerPath, []byte(testYML), 0)
 	assert.NoError(t, err)
-	defer ts.Stop()
-	defer z.Close()
+	defer func() {
+		err = ts.Stop()
+		assert.NoError(t, err)
+		z.Close()
+	}()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, routerLocalIP, ts.Servers[0].Port))
 	configuration, err := extension.GetConfigCenterFactory(routerZk).GetDynamicConfiguration(zkUrl)
@@ -126,7 +137,12 @@ conditions:
 	assert.NotNil(t, configuration)
 
 	appRouteURL := getAppRouteURL(routerKey)
-	appRouter, err := NewAppRouter(appRouteURL)
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
+	appRouter, err := NewAppRouter(appRouteURL, notify)
 	assert.Nil(t, err)
 	assert.NotNil(t, appRouter)
 
@@ -154,8 +170,11 @@ conditions:
 
 	_, err = z.Conn.Set(routerPath, []byte(testYML), 0)
 	assert.NoError(t, err)
-	defer ts.Stop()
-	defer z.Close()
+	defer func() {
+		err = ts.Stop()
+		assert.NoError(t, err)
+		z.Close()
+	}()
 
 	zkUrl, _ := common.NewURL(fmt.Sprintf(zkFormat, routerLocalIP, ts.Servers[0].Port))
 	configuration, err := extension.GetConfigCenterFactory(routerZk).GetDynamicConfiguration(zkUrl)
@@ -165,7 +184,12 @@ conditions:
 	assert.NotNil(t, configuration)
 
 	appRouteURL := getAppRouteURL(routerKey)
-	appRouter, err := NewAppRouter(appRouteURL)
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
+	appRouter, err := NewAppRouter(appRouteURL, notify)
 	assert.Nil(t, err)
 	assert.NotNil(t, appRouter)
 
diff --git a/cluster/router/condition/factory.go b/cluster/router/condition/factory.go
index f8d3e130102d4311f8b1ddb1055aece8a0633296..2c1f03516a88be2846a74029a990c67554201f05 100644
--- a/cluster/router/condition/factory.go
+++ b/cluster/router/condition/factory.go
@@ -37,8 +37,8 @@ func newConditionRouterFactory() router.PriorityRouterFactory {
 }
 
 // NewPriorityRouter creates ConditionRouterFactory by URL
-func (c *ConditionRouterFactory) NewPriorityRouter(url *common.URL) (router.PriorityRouter, error) {
-	return NewConditionRouter(url)
+func (c *ConditionRouterFactory) NewPriorityRouter(url *common.URL, notify chan struct{}) (router.PriorityRouter, error) {
+	return NewConditionRouter(url, notify)
 }
 
 // NewRouter Create FileRouterFactory by Content
@@ -54,6 +54,6 @@ func newAppRouterFactory() router.PriorityRouterFactory {
 }
 
 // NewPriorityRouter creates AppRouterFactory by URL
-func (c *AppRouterFactory) NewPriorityRouter(url *common.URL) (router.PriorityRouter, error) {
-	return NewAppRouter(url)
+func (c *AppRouterFactory) NewPriorityRouter(url *common.URL, notify chan struct{}) (router.PriorityRouter, error) {
+	return NewAppRouter(url, notify)
 }
diff --git a/cluster/router/condition/factory_test.go b/cluster/router/condition/factory_test.go
index c916588eeeef68b796c35ee6b3b175e8de859863..e08016d13ebba72f0a36c944082de27d6c95afdb 100644
--- a/cluster/router/condition/factory_test.go
+++ b/cluster/router/condition/factory_test.go
@@ -132,37 +132,47 @@ func (bi *MockInvoker) Destroy() {
 func TestRoute_matchWhen(t *testing.T) {
 	inv := &invocation.RPCInvocation{}
 	rule := base64.URLEncoding.EncodeToString([]byte("=> host = 1.2.3.4"))
-	router, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
+	router, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule), notify)
 	cUrl, _ := common.NewURL(fmt.Sprintf(factoryDubboFormat, factory1111Ip))
 	matchWhen := router.(*ConditionRouter).MatchWhen(cUrl, inv)
 	assert.Equal(t, true, matchWhen)
 	rule1 := base64.URLEncoding.EncodeToString([]byte("host = 2.2.2.2,1.1.1.1,3.3.3.3 => host = 1.2.3.4"))
-	router1, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule1))
+	router1, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule1), notify)
 	matchWhen1 := router1.(*ConditionRouter).MatchWhen(cUrl, inv)
 	assert.Equal(t, true, matchWhen1)
 	rule2 := base64.URLEncoding.EncodeToString([]byte("host = 2.2.2.2,1.1.1.1,3.3.3.3 & host !=1.1.1.1 => host = 1.2.3.4"))
-	router2, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule2))
+	router2, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule2), notify)
 	matchWhen2 := router2.(*ConditionRouter).MatchWhen(cUrl, inv)
 	assert.Equal(t, false, matchWhen2)
 	rule3 := base64.URLEncoding.EncodeToString([]byte("host !=4.4.4.4 & host = 2.2.2.2,1.1.1.1,3.3.3.3 => host = 1.2.3.4"))
-	router3, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule3))
+	router3, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule3), notify)
 	matchWhen3 := router3.(*ConditionRouter).MatchWhen(cUrl, inv)
 	assert.Equal(t, true, matchWhen3)
 	rule4 := base64.URLEncoding.EncodeToString([]byte("host !=4.4.4.* & host = 2.2.2.2,1.1.1.1,3.3.3.3 => host = 1.2.3.4"))
-	router4, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule4))
+	router4, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule4), notify)
 	matchWhen4 := router4.(*ConditionRouter).MatchWhen(cUrl, inv)
 	assert.Equal(t, true, matchWhen4)
 	rule5 := base64.URLEncoding.EncodeToString([]byte("host = 2.2.2.2,1.1.1.*,3.3.3.3 & host != 1.1.1.1 => host = 1.2.3.4"))
-	router5, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule5))
+	router5, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule5), notify)
 	matchWhen5 := router5.(*ConditionRouter).MatchWhen(cUrl, inv)
 	assert.Equal(t, false, matchWhen5)
 	rule6 := base64.URLEncoding.EncodeToString([]byte("host = 2.2.2.2,1.1.1.*,3.3.3.3 & host != 1.1.1.2 => host = 1.2.3.4"))
-	router6, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule6))
+	router6, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule6), notify)
 	matchWhen6 := router6.(*ConditionRouter).MatchWhen(cUrl, inv)
 	assert.Equal(t, true, matchWhen6)
 }
 
 func TestRoute_matchFilter(t *testing.T) {
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	localIP := common.GetLocalIp()
 	t.Logf("The local ip is %s", localIP)
 	url1, _ := common.NewURL("dubbo://10.20.3.3:20880/com.foo.BarService?default.serialization=fastjson")
@@ -175,12 +185,12 @@ func TestRoute_matchFilter(t *testing.T) {
 	rule4 := base64.URLEncoding.EncodeToString([]byte("host = " + localIP + " => " + " host = 10.20.3.2,10.20.3.3,10.20.3.4"))
 	rule5 := base64.URLEncoding.EncodeToString([]byte("host = " + localIP + " => " + " host != 10.20.3.3"))
 	rule6 := base64.URLEncoding.EncodeToString([]byte("host = " + localIP + " => " + " serialization = fastjson"))
-	router1, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule1))
-	router2, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule2))
-	router3, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule3))
-	router4, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule4))
-	router5, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule5))
-	router6, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule6))
+	router1, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule1), notify)
+	router2, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule2), notify)
+	router3, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule3), notify)
+	router4, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule4), notify)
+	router5, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule5), notify)
+	router6, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule6), notify)
 	cUrl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
 	ret1 := router1.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), cUrl, &invocation.RPCInvocation{})
 	ret2 := router2.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), cUrl, &invocation.RPCInvocation{})
@@ -198,9 +208,14 @@ func TestRoute_matchFilter(t *testing.T) {
 }
 
 func TestRoute_methodRoute(t *testing.T) {
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	inv := invocation.NewRPCInvocationWithOptions(invocation.WithMethodName("getFoo"), invocation.WithParameterTypes([]reflect.Type{}), invocation.WithArguments([]interface{}{}))
 	rule := base64.URLEncoding.EncodeToString([]byte("host !=4.4.4.* & host = 2.2.2.2,1.1.1.1,3.3.3.3 => host = 1.2.3.4"))
-	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
+	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule), notify)
 	url, _ := common.NewURL("consumer://1.1.1.1/com.foo.BarService?methods=setFoo,getFoo,findFoo")
 	matchWhen := r.(*ConditionRouter).MatchWhen(url, inv)
 	assert.Equal(t, true, matchWhen)
@@ -209,42 +224,57 @@ func TestRoute_methodRoute(t *testing.T) {
 	assert.Equal(t, true, matchWhen)
 	url2, _ := common.NewURL(fmt.Sprintf(factoryConsumerMethodFormat, factory1111Ip))
 	rule2 := base64.URLEncoding.EncodeToString([]byte("methods=getFoo & host!=1.1.1.1 => host = 1.2.3.4"))
-	router2, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule2))
+	router2, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule2), notify)
 	matchWhen = router2.(*ConditionRouter).MatchWhen(url2, inv)
 	assert.Equal(t, false, matchWhen)
 	url3, _ := common.NewURL(fmt.Sprintf(factoryConsumerMethodFormat, factory1111Ip))
 	rule3 := base64.URLEncoding.EncodeToString([]byte("methods=getFoo & host=1.1.1.1 => host = 1.2.3.4"))
-	router3, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule3))
+	router3, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule3), notify)
 	matchWhen = router3.(*ConditionRouter).MatchWhen(url3, inv)
 	assert.Equal(t, true, matchWhen)
 
 }
 
 func TestRoute_ReturnFalse(t *testing.T) {
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	url, _ := common.NewURL("")
 	localIP := common.GetLocalIp()
 	invokers := []protocol.Invoker{NewMockInvoker(url, 1), NewMockInvoker(url, 2), NewMockInvoker(url, 3)}
 	inv := &invocation.RPCInvocation{}
 	rule := base64.URLEncoding.EncodeToString([]byte("host = " + localIP + " => false"))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
-	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
+	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule), notify)
 	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, 0, len(ret.ToArray()))
 }
 
 func TestRoute_ReturnEmpty(t *testing.T) {
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	localIP := common.GetLocalIp()
 	url, _ := common.NewURL("")
 	invokers := []protocol.Invoker{NewMockInvoker(url, 1), NewMockInvoker(url, 2), NewMockInvoker(url, 3)}
 	inv := &invocation.RPCInvocation{}
 	rule := base64.URLEncoding.EncodeToString([]byte("host = " + localIP + " => "))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
-	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
+	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule), notify)
 	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, 0, len(ret.ToArray()))
 }
 
 func TestRoute_ReturnAll(t *testing.T) {
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	localIP := common.GetLocalIp()
 	urlString := "dubbo://" + localIP + "/com.foo.BarService"
 	dubboURL, _ := common.NewURL(urlString)
@@ -255,7 +285,7 @@ func TestRoute_ReturnAll(t *testing.T) {
 	inv := &invocation.RPCInvocation{}
 	rule := base64.URLEncoding.EncodeToString([]byte("host = " + localIP + " => " + " host = " + localIP))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
-	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
+	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule), notify)
 	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, len(invokers), len(ret.ToArray()))
 }
@@ -265,6 +295,11 @@ func TestRoute_HostFilter(t *testing.T) {
 	url1, _ := common.NewURL(factory333URL)
 	url2, _ := common.NewURL(fmt.Sprintf(factoryDubboFormat, localIP))
 	url3, _ := common.NewURL(fmt.Sprintf(factoryDubboFormat, localIP))
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	invoker1 := NewMockInvoker(url1, 1)
 	invoker2 := NewMockInvoker(url2, 2)
 	invoker3 := NewMockInvoker(url3, 3)
@@ -272,7 +307,7 @@ func TestRoute_HostFilter(t *testing.T) {
 	inv := &invocation.RPCInvocation{}
 	rule := base64.URLEncoding.EncodeToString([]byte("host = " + localIP + " => " + " host = " + localIP))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
-	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
+	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule), notify)
 	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, 2, len(ret.ToArray()))
 	assert.Equal(t, invoker2, invokers[ret.ToArray()[0]])
@@ -280,6 +315,11 @@ func TestRoute_HostFilter(t *testing.T) {
 }
 
 func TestRoute_Empty_HostFilter(t *testing.T) {
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	localIP := common.GetLocalIp()
 	url1, _ := common.NewURL(factory333URL)
 	url2, _ := common.NewURL(fmt.Sprintf(factoryDubboFormat, localIP))
@@ -291,7 +331,7 @@ func TestRoute_Empty_HostFilter(t *testing.T) {
 	inv := &invocation.RPCInvocation{}
 	rule := base64.URLEncoding.EncodeToString([]byte(" => " + " host = " + localIP))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
-	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
+	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule), notify)
 	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, 2, len(ret.ToArray()))
 	assert.Equal(t, invoker2, invokers[ret.ToArray()[0]])
@@ -299,6 +339,11 @@ func TestRoute_Empty_HostFilter(t *testing.T) {
 }
 
 func TestRoute_False_HostFilter(t *testing.T) {
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	localIP := common.GetLocalIp()
 	url1, _ := common.NewURL(factory333URL)
 	url2, _ := common.NewURL(fmt.Sprintf(factoryDubboFormat, localIP))
@@ -310,7 +355,7 @@ func TestRoute_False_HostFilter(t *testing.T) {
 	inv := &invocation.RPCInvocation{}
 	rule := base64.URLEncoding.EncodeToString([]byte("true => " + " host = " + localIP))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
-	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
+	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule), notify)
 	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, 2, len(ret.ToArray()))
 	assert.Equal(t, invoker2, invokers[ret.ToArray()[0]])
@@ -318,6 +363,11 @@ func TestRoute_False_HostFilter(t *testing.T) {
 }
 
 func TestRoute_Placeholder(t *testing.T) {
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	localIP := common.GetLocalIp()
 	url1, _ := common.NewURL(factory333URL)
 	url2, _ := common.NewURL(fmt.Sprintf(factoryDubboFormat, localIP))
@@ -329,7 +379,7 @@ func TestRoute_Placeholder(t *testing.T) {
 	inv := &invocation.RPCInvocation{}
 	rule := base64.URLEncoding.EncodeToString([]byte("host = " + localIP + " => " + " host = $host"))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
-	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule))
+	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrl(rule), notify)
 	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, 2, len(ret.ToArray()))
 	assert.Equal(t, invoker2, invokers[ret.ToArray()[0]])
@@ -337,6 +387,11 @@ func TestRoute_Placeholder(t *testing.T) {
 }
 
 func TestRoute_NoForce(t *testing.T) {
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	localIP := common.GetLocalIp()
 	url1, _ := common.NewURL(factory333URL)
 	url2, _ := common.NewURL(fmt.Sprintf(factoryDubboFormat, localIP))
@@ -348,12 +403,17 @@ func TestRoute_NoForce(t *testing.T) {
 	inv := &invocation.RPCInvocation{}
 	rule := base64.URLEncoding.EncodeToString([]byte(fmt.Sprintf(factoryHostIp1234Format, localIP)))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
-	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrlWithNoForce(rule))
+	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrlWithNoForce(rule), notify)
 	ret := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, len(invokers), len(ret.ToArray()))
 }
 
 func TestRoute_Force(t *testing.T) {
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	localIP := common.GetLocalIp()
 	url1, _ := common.NewURL(factory333URL)
 	url2, _ := common.NewURL(fmt.Sprintf(factoryDubboFormat, localIP))
@@ -365,7 +425,7 @@ func TestRoute_Force(t *testing.T) {
 	inv := &invocation.RPCInvocation{}
 	rule := base64.URLEncoding.EncodeToString([]byte(fmt.Sprintf(factoryHostIp1234Format, localIP)))
 	curl, _ := common.NewURL(fmt.Sprintf(factoryConsumerFormat, localIP))
-	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrlWithForce(rule, "true"))
+	r, _ := newConditionRouterFactory().NewPriorityRouter(getRouteUrlWithForce(rule, "true"), notify)
 	fileredInvokers := r.Route(utils.ToBitmap(invokers), setUpAddrCache(invokers), curl, inv)
 	assert.Equal(t, 0, len(fileredInvokers.ToArray()))
 }
diff --git a/cluster/router/condition/file_test.go b/cluster/router/condition/file_test.go
index bd19a0d18c6692af181ffef77c5cd3f9fc16d67d..9035e9559223e30cc2a56873b5aa0e4432c0a358 100644
--- a/cluster/router/condition/file_test.go
+++ b/cluster/router/condition/file_test.go
@@ -89,33 +89,41 @@ func TestParseServiceRouterKey(t *testing.T) {
 	assert.Equal(t, "mock-group", grp)
 	assert.Equal(t, "mock-service", srv)
 	assert.Equal(t, "1.0.0", ver)
+	assert.Nil(t, err)
 
 	testString = "mock-group/mock-service"
 	grp, srv, ver, err = parseServiceRouterKey(testString)
 	assert.Equal(t, "mock-group", grp)
 	assert.Equal(t, "mock-service", srv)
 	assert.Equal(t, "", ver)
+	assert.Nil(t, err)
 
 	testString = "mock-service:1.0.0"
 	grp, srv, ver, err = parseServiceRouterKey(testString)
 	assert.Equal(t, "", grp)
 	assert.Equal(t, "mock-service", srv)
 	assert.Equal(t, "1.0.0", ver)
+	assert.Nil(t, err)
 
 	testString = "mock-service"
 	grp, srv, ver, err = parseServiceRouterKey(testString)
 	assert.Equal(t, "", grp)
 	assert.Equal(t, "mock-service", srv)
 	assert.Equal(t, "", ver)
+	assert.NoError(t, err)
 
 	testString = "/mock-service:"
 	grp, srv, ver, err = parseServiceRouterKey(testString)
 	assert.Equal(t, "", grp)
 	assert.Equal(t, "mock-service", srv)
 	assert.Equal(t, "", ver)
+	assert.NoError(t, err)
 
 	testString = "grp:mock-service:123"
 	grp, srv, ver, err = parseServiceRouterKey(testString)
+	assert.Equal(t, "", grp)
+	assert.Equal(t, "", srv)
+	assert.Equal(t, "", ver)
 	assert.Error(t, err)
 
 	testString = ""
@@ -123,4 +131,5 @@ func TestParseServiceRouterKey(t *testing.T) {
 	assert.Equal(t, "", grp)
 	assert.Equal(t, "", srv)
 	assert.Equal(t, "", ver)
+	assert.NoError(t, err)
 }
diff --git a/cluster/router/condition/listenable_router.go b/cluster/router/condition/listenable_router.go
index 0b47310dbfe9987a593bc2d0d949a76f08052114..2e55b2075d28af7ef3bb00faec5b6cbae1a78840 100644
--- a/cluster/router/condition/listenable_router.go
+++ b/cluster/router/condition/listenable_router.go
@@ -49,6 +49,7 @@ type listenableRouter struct {
 	url              *common.URL
 	force            bool
 	priority         int64
+	notify           chan struct{}
 }
 
 // RouterRule Get RouterRule instance from listenableRouter
@@ -56,7 +57,7 @@ func (l *listenableRouter) RouterRule() *RouterRule {
 	return l.routerRule
 }
 
-func newListenableRouter(url *common.URL, ruleKey string) (*AppRouter, error) {
+func newListenableRouter(url *common.URL, ruleKey string, notify chan struct{}) (*AppRouter, error) {
 	if ruleKey == "" {
 		return nil, perrors.Errorf("NewListenableRouter ruleKey is nil, can't create Listenable router")
 	}
@@ -64,6 +65,7 @@ func newListenableRouter(url *common.URL, ruleKey string) (*AppRouter, error) {
 
 	l.url = url
 	l.priority = listenableRouterDefaultPriority
+	l.notify = notify
 
 	routerKey := ruleKey + constant.ConditionRouterRuleSuffix
 	// add listener
@@ -110,6 +112,9 @@ func (l *listenableRouter) Process(event *config_center.ConfigChangeEvent) {
 		return
 	}
 	l.generateConditions(routerRule)
+	go func() {
+		l.notify <- struct{}{}
+	}()
 }
 
 func (l *listenableRouter) generateConditions(rule *RouterRule) {
diff --git a/cluster/router/condition/router.go b/cluster/router/condition/router.go
index 2fc33072d33517810f0c9ab3b8351d7bdcfea8b4..d543ca3f94644370179c18a9c3a3f9a00268461e 100644
--- a/cluster/router/condition/router.go
+++ b/cluster/router/condition/router.go
@@ -46,6 +46,13 @@ var (
 	routerPatternReg = regexp.MustCompile(`([&!=,]*)\s*([^&!=,\s]+)`)
 )
 
+var (
+	emptyMatchPair = MatchPair{
+		Matches:    gxset.NewSet(),
+		Mismatches: gxset.NewSet(),
+	}
+)
+
 // ConditionRouter Condition router struct
 type ConditionRouter struct {
 	Pattern       string
@@ -55,6 +62,7 @@ type ConditionRouter struct {
 	enabled       bool
 	WhenCondition map[string]MatchPair
 	ThenCondition map[string]MatchPair
+	notify        chan struct{}
 }
 
 // NewConditionRouterWithRule Init condition router by raw rule
@@ -104,7 +112,7 @@ func NewConditionRouterWithRule(rule string) (*ConditionRouter, error) {
 }
 
 // NewConditionRouter Init condition router by URL
-func NewConditionRouter(url *common.URL) (*ConditionRouter, error) {
+func NewConditionRouter(url *common.URL, notify chan struct{}) (*ConditionRouter, error) {
 	if url == nil {
 		return nil, perrors.Errorf("Illegal route URL!")
 	}
@@ -128,6 +136,7 @@ func NewConditionRouter(url *common.URL) (*ConditionRouter, error) {
 	router.priority = url.GetParamInt(constant.RouterPriority, defaultPriority)
 	router.Force = url.GetParamBool(constant.RouterForce, false)
 	router.enabled = url.GetParamBool(constant.RouterEnabled, true)
+	router.notify = notify
 
 	return router, nil
 }
@@ -221,14 +230,14 @@ func parseRule(rule string) (map[string]MatchPair, error) {
 				condition[content] = pair
 			}
 		case "=":
-			if &pair == nil {
+			if pair == emptyMatchPair {
 				var startIndex = getStartIndex(rule)
 				return nil, perrors.Errorf("Illegal route rule \"%s\", The error char '%s' at index %d before \"%d\".", rule, separator, startIndex, startIndex)
 			}
 			values = pair.Matches
 			values.Add(content)
 		case "!=":
-			if &pair == nil {
+			if pair == emptyMatchPair {
 				var startIndex = getStartIndex(rule)
 				return nil, perrors.Errorf("Illegal route rule \"%s\", The error char '%s' at index %d before \"%d\".", rule, separator, startIndex, startIndex)
 			}
diff --git a/cluster/router/condition/router_test.go b/cluster/router/condition/router_test.go
index 3d33ca275828b31ed480926d486c5844dac771c6..2895703dbc4672a300468f351d667198f52b5bf7 100644
--- a/cluster/router/condition/router_test.go
+++ b/cluster/router/condition/router_test.go
@@ -58,8 +58,13 @@ func TestParseRule(t *testing.T) {
 }
 
 func TestNewConditionRouter(t *testing.T) {
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	url, _ := common.NewURL(`condition://0.0.0.0:?application=mock-app&category=routers&force=true&priority=1&router=condition&rule=YSAmIGMgPT4gYiAmIGQ%3D`)
-	router, err := NewConditionRouter(url)
+	router, err := NewConditionRouter(url, notify)
 	assert.Nil(t, err)
 	assert.Equal(t, true, router.Enabled())
 	assert.Equal(t, true, router.Force)
@@ -69,20 +74,22 @@ func TestNewConditionRouter(t *testing.T) {
 	assert.EqualValues(t, router.WhenCondition, whenRule)
 	assert.EqualValues(t, router.ThenCondition, thenRule)
 
-	router, err = NewConditionRouter(nil)
+	router, err = NewConditionRouter(nil, notify)
+	assert.Nil(t, router)
 	assert.Error(t, err)
 
 	url, _ = common.NewURL(`condition://0.0.0.0:?application=mock-app&category=routers&force=true&priority=1&router=condition&rule=YSAmT4gYiAmIGQ%3D`)
-	router, err = NewConditionRouter(url)
+	router, err = NewConditionRouter(url, notify)
+	assert.Nil(t, router)
 	assert.Error(t, err)
 
 	url, _ = common.NewURL(`condition://0.0.0.0:?application=mock-app&category=routers&force=true&router=condition&rule=YSAmIGMgPT4gYiAmIGQ%3D`)
-	router, err = NewConditionRouter(url)
+	router, err = NewConditionRouter(url, notify)
 	assert.Nil(t, err)
 	assert.Equal(t, int64(150), router.Priority())
 
 	url, _ = common.NewURL(`condition://0.0.0.0:?category=routers&force=true&interface=mock-service&router=condition&rule=YSAmIGMgPT4gYiAmIGQ%3D`)
-	router, err = NewConditionRouter(url)
+	router, err = NewConditionRouter(url, notify)
 	assert.Nil(t, err)
 	assert.Equal(t, int64(140), router.Priority())
 }
diff --git a/cluster/router/conn_checker.go b/cluster/router/conn_checker.go
new file mode 100644
index 0000000000000000000000000000000000000000..fda0ef868b32dfcd82980394cec0bce99615ecbb
--- /dev/null
+++ b/cluster/router/conn_checker.go
@@ -0,0 +1,28 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package router
+
+import (
+	"github.com/apache/dubbo-go/protocol"
+)
+
+// ConnChecker is used to determine whether the invoker is healthy or not
+type ConnChecker interface {
+	// IsConnHealthy evaluates the healthy state on the given Invoker
+	IsConnHealthy(invoker protocol.Invoker) bool
+}
diff --git a/cluster/router/conncheck/conn_check_route.go b/cluster/router/conncheck/conn_check_route.go
new file mode 100644
index 0000000000000000000000000000000000000000..97f049d85bb0369982e0a84f27a4c6b3b8925a55
--- /dev/null
+++ b/cluster/router/conncheck/conn_check_route.go
@@ -0,0 +1,105 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package conncheck
+
+import (
+	"github.com/RoaringBitmap/roaring"
+)
+
+import (
+	"github.com/apache/dubbo-go/cluster/router"
+	"github.com/apache/dubbo-go/cluster/router/utils"
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
+	"github.com/apache/dubbo-go/common/extension"
+	"github.com/apache/dubbo-go/common/logger"
+	"github.com/apache/dubbo-go/protocol"
+)
+
+const (
+	connHealthy = "conn-healthy"
+	name        = "conn-check-router"
+)
+
+// ConnCheckRouter provides a health-first routing mechanism through ConnChecker
+type ConnCheckRouter struct {
+	url     *common.URL
+	checker router.ConnChecker
+	notify  chan struct{}
+}
+
+// NewConnCheckRouter construct an NewConnCheckRouter via url
+func NewConnCheckRouter(url *common.URL, notify chan struct{}) (router.PriorityRouter, error) {
+	r := &ConnCheckRouter{
+		url:    url,
+		notify: notify,
+	}
+	checkerName := url.GetParam(constant.HEALTH_CHECKER, constant.DEFAULT_HEALTH_CHECKER)
+	r.checker = extension.GetConnChecker(checkerName, url)
+	return r, nil
+}
+
+// Route gets a list of healthy invoker
+func (r *ConnCheckRouter) Route(invokers *roaring.Bitmap, cache router.Cache, url *common.URL, invocation protocol.Invocation) *roaring.Bitmap {
+	addrPool := cache.FindAddrPool(r)
+	// Add healthy invoker to the list
+	healthyInvokers := utils.JoinIfNotEqual(addrPool[connHealthy], invokers)
+	// If all invokers are considered unhealthy, downgrade to all invoker
+	if healthyInvokers.IsEmpty() {
+		logger.Warnf(" Now all invokers are unhealthy, so downgraded to all! Service: [%s]", url.ServiceKey())
+		return invokers
+	}
+	return healthyInvokers
+}
+
+// Pool separates healthy invokers from others.
+func (r *ConnCheckRouter) Pool(invokers []protocol.Invoker) (router.AddrPool, router.AddrMetadata) {
+	rb := make(router.AddrPool, 8)
+	rb[connHealthy] = roaring.NewBitmap()
+	for i, invoker := range invokers {
+		if r.checker.IsConnHealthy(invoker) {
+			rb[connHealthy].Add(uint32(i))
+		}
+	}
+	return rb, nil
+}
+
+// ShouldPool will always return true to make sure healthy check constantly.
+func (r *ConnCheckRouter) ShouldPool() bool {
+	return true
+}
+
+// Name get name of ConnCheckerRouter
+func (r *ConnCheckRouter) Name() string {
+	return name
+}
+
+// Priority get Router priority level
+func (r *ConnCheckRouter) Priority() int64 {
+	return 0
+}
+
+// URL Return URL in router
+func (r *ConnCheckRouter) URL() *common.URL {
+	return r.url
+}
+
+// ConnChecker returns the HealthChecker bound to this HealthCheckRouter
+func (r *ConnCheckRouter) ConnChecker() router.ConnChecker {
+	return r.checker
+}
diff --git a/cluster/router/conncheck/conn_check_route_test.go b/cluster/router/conncheck/conn_check_route_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..fec733167f38c2c642e6a35795fcc57289d242ca
--- /dev/null
+++ b/cluster/router/conncheck/conn_check_route_test.go
@@ -0,0 +1,111 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package conncheck
+
+import (
+	"fmt"
+	"testing"
+)
+
+import (
+	"github.com/golang/mock/gomock"
+	"github.com/stretchr/testify/assert"
+)
+
+import (
+	"github.com/apache/dubbo-go/cluster/router"
+	"github.com/apache/dubbo-go/cluster/router/chain"
+	"github.com/apache/dubbo-go/cluster/router/utils"
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/protocol"
+	"github.com/apache/dubbo-go/protocol/invocation"
+	"github.com/apache/dubbo-go/protocol/mock"
+)
+
+const (
+	connCheckRoute1010IP         = "192.168.10.10"
+	connCheckRoute1011IP         = "192.168.10.11"
+	connCheckRoute1012IP         = "192.168.10.12"
+	connCheckRouteMethodNameTest = "test"
+	connCheck1001URL             = "dubbo://192.168.10.1/com.ikurento.user.UserProvider"
+	connCheckRouteUrlFormat      = "dubbo://%s:20000/com.ikurento.user.UserProvider"
+)
+
+func TestConnCheckRouterRoute(t *testing.T) {
+	defer protocol.CleanAllStatus()
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
+	consumerURL, _ := common.NewURL(connCheck1001URL)
+	url1, _ := common.NewURL(fmt.Sprintf(connCheckRouteUrlFormat, connCheckRoute1010IP))
+	url2, _ := common.NewURL(fmt.Sprintf(connCheckRouteUrlFormat, connCheckRoute1011IP))
+	url3, _ := common.NewURL(fmt.Sprintf(connCheckRouteUrlFormat, connCheckRoute1012IP))
+	hcr, _ := NewConnCheckRouter(consumerURL, notify)
+
+	var invokers []protocol.Invoker
+	invoker1 := NewMockInvoker(url1)
+	invoker2 := NewMockInvoker(url2)
+	invoker3 := NewMockInvoker(url3)
+	protocol.SetInvokerUnhealthyStatus(invoker1)
+	protocol.SetInvokerUnhealthyStatus(invoker2)
+
+	invokers = append(invokers, invoker1, invoker2, invoker3)
+	inv := invocation.NewRPCInvocation(connCheckRouteMethodNameTest, nil, nil)
+	res := hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*ConnCheckRouter), invokers), consumerURL, inv)
+
+	// now  invoker3 is healthy
+	assert.True(t, len(res.ToArray()) == 1)
+
+	// check blacklist remove
+	protocol.RemoveInvokerUnhealthyStatus(invoker1)
+	res = hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*ConnCheckRouter), invokers), consumerURL, inv)
+	// now  invoker3 invoker1 is healthy
+	assert.True(t, len(res.ToArray()) == 2)
+
+}
+
+func TestRecovery(t *testing.T) {
+	// check recover
+
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	invoker1 := mock.NewMockInvoker(ctrl)
+	invoker2 := mock.NewMockInvoker(ctrl)
+
+	invoker1.EXPECT().GetUrl().Return(&common.URL{Path: "path1"}).AnyTimes()
+	invoker2.EXPECT().GetUrl().Return(&common.URL{Path: "path2"}).AnyTimes()
+	invoker1.EXPECT().IsAvailable().Return(true).AnyTimes()
+	invoker2.EXPECT().IsAvailable().Return(true).AnyTimes()
+
+	protocol.SetInvokerUnhealthyStatus(invoker1)
+	protocol.SetInvokerUnhealthyStatus(invoker2)
+	assert.Equal(t, len(protocol.GetBlackListInvokers(16)), 2)
+	protocol.TryRefreshBlackList()
+	assert.Equal(t, len(protocol.GetBlackListInvokers(16)), 0)
+}
+
+func setUpAddrCache(r router.Poolable, addrs []protocol.Invoker) router.Cache {
+	pool, info := r.Pool(addrs)
+	cache := chain.BuildCache(addrs)
+	cache.SetAddrMeta(r.Name(), info)
+	cache.SetAddrPool(r.Name(), pool)
+	return cache
+}
diff --git a/cluster/router/conncheck/conn_health_check.go b/cluster/router/conncheck/conn_health_check.go
new file mode 100644
index 0000000000000000000000000000000000000000..9f05b0695f2b7a569ab669baac7540ca7c896861
--- /dev/null
+++ b/cluster/router/conncheck/conn_health_check.go
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package conncheck
+
+import (
+	"github.com/apache/dubbo-go/cluster/router"
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
+	"github.com/apache/dubbo-go/common/extension"
+	"github.com/apache/dubbo-go/protocol"
+)
+
+func init() {
+	extension.SetConnChecker(constant.DEFAULT_CONN_CHECKER, NewDefaultConnChecker)
+}
+
+// DefaultConnChecker is the default implementation of ConnChecker, which determines the health status of invoker conn
+type DefaultConnChecker struct {
+}
+
+// IsConnHealthy evaluates the healthy state on the given Invoker based on the number of successive bad request
+// and the current active request
+func (c *DefaultConnChecker) IsConnHealthy(invoker protocol.Invoker) bool {
+	return protocol.GetInvokerHealthyStatus(invoker)
+}
+
+// NewDefaultConnChecker constructs a new DefaultConnChecker based on the url
+func NewDefaultConnChecker(url *common.URL) router.ConnChecker {
+	return &DefaultConnChecker{}
+}
diff --git a/cluster/router/conncheck/conn_health_check_test.go b/cluster/router/conncheck/conn_health_check_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..44d148e1b8c494cc48a04ba56f2175df8ceec19e
--- /dev/null
+++ b/cluster/router/conncheck/conn_health_check_test.go
@@ -0,0 +1,52 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package conncheck
+
+import (
+	"fmt"
+	"testing"
+)
+
+import (
+	"github.com/stretchr/testify/assert"
+)
+
+import (
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/protocol"
+)
+
+const (
+	connCheckDubbo1010IP    = "192.168.10.10"
+	connCheckDubboUrlFormat = "dubbo://%s:20000/com.ikurento.user.UserProvider"
+)
+
+func TestDefaultConnCheckerIsHealthy(t *testing.T) {
+	defer protocol.CleanAllStatus()
+	url, _ := common.NewURL(fmt.Sprintf(connCheckDubboUrlFormat, connCheckDubbo1010IP))
+	cc := NewDefaultConnChecker(url).(*DefaultConnChecker)
+	invoker := NewMockInvoker(url)
+	healthy := cc.IsConnHealthy(invoker)
+	assert.True(t, healthy)
+
+	invoker = NewMockInvoker(url)
+	cc = NewDefaultConnChecker(url).(*DefaultConnChecker)
+	// add to black list
+	protocol.SetInvokerUnhealthyStatus(invoker)
+	assert.False(t, cc.IsConnHealthy(invoker))
+}
diff --git a/cluster/router/conncheck/factory.go b/cluster/router/conncheck/factory.go
new file mode 100644
index 0000000000000000000000000000000000000000..a7b19aaea668b31006f8caa384067a3051ddb5ce
--- /dev/null
+++ b/cluster/router/conncheck/factory.go
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package conncheck
+
+import (
+	"github.com/apache/dubbo-go/cluster/router"
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
+	"github.com/apache/dubbo-go/common/extension"
+)
+
+func init() {
+	extension.SetRouterFactory(constant.ConnCheckRouterName, newConnCheckRouteFactory)
+}
+
+// ConnCheckRouteFactory is the factory to create conn check router, it aims at filter ip with unhealthy status
+// the unhealthy status is storied in protocol/rpc_status.go with sync.Map
+type ConnCheckRouteFactory struct {
+}
+
+// newConnCheckRouteFactory construct a new ConnCheckRouteFactory
+func newConnCheckRouteFactory() router.PriorityRouterFactory {
+	return &ConnCheckRouteFactory{}
+}
+
+// NewPriorityRouter construct a new NewConnCheckRouter via url
+func (f *ConnCheckRouteFactory) NewPriorityRouter(url *common.URL, notify chan struct{}) (router.PriorityRouter, error) {
+	return NewConnCheckRouter(url, notify)
+}
diff --git a/cluster/router/conncheck/factory_test.go b/cluster/router/conncheck/factory_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..02f8fb472ed808b7db4d7903f94ac96064aedbb8
--- /dev/null
+++ b/cluster/router/conncheck/factory_test.go
@@ -0,0 +1,74 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package conncheck
+
+import (
+	"context"
+	"testing"
+)
+
+import (
+	"github.com/stretchr/testify/assert"
+)
+
+import (
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/protocol"
+)
+
+// nolint
+type MockInvoker struct {
+	url *common.URL
+}
+
+// nolint
+func NewMockInvoker(url *common.URL) *MockInvoker {
+	return &MockInvoker{
+		url: url,
+	}
+}
+
+// nolint
+func (bi *MockInvoker) GetUrl() *common.URL {
+	return bi.url
+}
+
+// nolint
+func (bi *MockInvoker) IsAvailable() bool {
+	return true
+}
+
+// nolint
+func (bi *MockInvoker) IsDestroyed() bool {
+	return true
+}
+
+// nolint
+func (bi *MockInvoker) Invoke(_ context.Context, _ protocol.Invocation) protocol.Result {
+	return nil
+}
+
+// nolint
+func (bi *MockInvoker) Destroy() {
+}
+
+// nolint
+func TestHealthCheckRouteFactory(t *testing.T) {
+	factory := newConnCheckRouteFactory()
+	assert.NotNil(t, factory)
+}
diff --git a/cluster/router/healthcheck/default_health_check.go b/cluster/router/healthcheck/default_health_check.go
index 3effd779c989ed8e68c91eb6eab20d10d8b04e8c..eb15e6f6422d1bdc0ae4d0f4a76db50161db1870 100644
--- a/cluster/router/healthcheck/default_health_check.go
+++ b/cluster/router/healthcheck/default_health_check.go
@@ -48,10 +48,6 @@ type DefaultHealthChecker struct {
 // IsHealthy evaluates the healthy state on the given Invoker based on the number of successive bad request
 // and the current active request
 func (c *DefaultHealthChecker) IsHealthy(invoker protocol.Invoker) bool {
-	if !invoker.IsAvailable() {
-		return false
-	}
-
 	urlStatus := protocol.GetURLStatus(invoker.GetUrl())
 	if c.isCircuitBreakerTripped(urlStatus) || urlStatus.GetActive() > c.GetOutStandingRequestCountLimit() {
 		logger.Debugf("Invoker [%s] is currently in circuitbreaker tripped state", invoker.GetUrl().Key())
@@ -96,7 +92,6 @@ func (c *DefaultHealthChecker) getCircuitBreakerSleepWindowTime(status *protocol
 	return int64(sleepWindow)
 }
 
-
 // GetRequestSuccessiveFailureThreshold return the requestSuccessiveFailureThreshold bound to this DefaultHealthChecker
 func (c *DefaultHealthChecker) GetRequestSuccessiveFailureThreshold() int32 {
 	return c.requestSuccessiveFailureThreshold
diff --git a/cluster/router/healthcheck/default_health_check_test.go b/cluster/router/healthcheck/default_health_check_test.go
index 39827c5f050a1a5ac9524345b59e37ec23efb90f..c32a607889fb096fee07e1c391f5f3461aacfbc5 100644
--- a/cluster/router/healthcheck/default_health_check_test.go
+++ b/cluster/router/healthcheck/default_health_check_test.go
@@ -56,6 +56,7 @@ func TestDefaultHealthCheckerIsHealthy(t *testing.T) {
 	}
 	hc = NewDefaultHealthChecker(url).(*DefaultHealthChecker)
 	healthy = hc.IsHealthy(invoker)
+	assert.False(t, false, healthy)
 	// the outgoing request is more than OUTSTANDING_REQUEST_COUNT_LIMIT, go to unhealthy
 	assert.False(t, hc.IsHealthy(invoker))
 
@@ -67,11 +68,13 @@ func TestDefaultHealthCheckerIsHealthy(t *testing.T) {
 	url.SetParam(constant.OUTSTANDING_REQUEST_COUNT_LIMIT_KEY, "1000")
 	hc = NewDefaultHealthChecker(url).(*DefaultHealthChecker)
 	healthy = hc.IsHealthy(invoker)
+	assert.False(t, false, healthy)
 	assert.False(t, hc.IsHealthy(invoker))
 
 	// reset successive failed count and go to healthy
 	request(url, healthCheckMethodTest, 0, false, true)
 	healthy = hc.IsHealthy(invoker)
+	assert.False(t, false, healthy)
 	assert.True(t, hc.IsHealthy(invoker))
 }
 
diff --git a/cluster/router/healthcheck/factory.go b/cluster/router/healthcheck/factory.go
index 40c9dd7ab9e431a16833507ee4093ff7fbff8c95..a9054c7714417426bcf916dddfe61099df69e26e 100644
--- a/cluster/router/healthcheck/factory.go
+++ b/cluster/router/healthcheck/factory.go
@@ -38,6 +38,6 @@ func newHealthCheckRouteFactory() router.PriorityRouterFactory {
 }
 
 // NewPriorityRouter construct a new NewHealthCheckRouter via url
-func (f *HealthCheckRouteFactory) NewPriorityRouter(url *common.URL) (router.PriorityRouter, error) {
-	return NewHealthCheckRouter(url)
+func (f *HealthCheckRouteFactory) NewPriorityRouter(url *common.URL, notify chan struct{}) (router.PriorityRouter, error) {
+	return NewHealthCheckRouter(url, notify)
 }
diff --git a/cluster/router/healthcheck/health_check_route.go b/cluster/router/healthcheck/health_check_route.go
index 1a878af2127d2c5b979cfdb55ff1c1ec08463fe7..bd9543e1b27586408293bb9dcbed35a44036d3c7 100644
--- a/cluster/router/healthcheck/health_check_route.go
+++ b/cluster/router/healthcheck/health_check_route.go
@@ -32,9 +32,8 @@ import (
 )
 
 const (
-	HEALTH_ROUTE_ENABLED_KEY = "health.route.enabled"
-	healthy                  = "healthy"
-	name                     = "health-check-router"
+	healthy = "healthy"
+	name    = "health-check-router"
 )
 
 // HealthCheckRouter provides a health-first routing mechanism through HealthChecker
@@ -42,13 +41,15 @@ type HealthCheckRouter struct {
 	url     *common.URL
 	enabled bool
 	checker router.HealthChecker
+	notify  chan struct{}
 }
 
 // NewHealthCheckRouter construct an HealthCheckRouter via url
-func NewHealthCheckRouter(url *common.URL) (router.PriorityRouter, error) {
+func NewHealthCheckRouter(url *common.URL, notify chan struct{}) (router.PriorityRouter, error) {
 	r := &HealthCheckRouter{
 		url:     url,
-		enabled: url.GetParamBool(HEALTH_ROUTE_ENABLED_KEY, false),
+		enabled: url.GetParamBool(constant.HEALTH_ROUTE_ENABLED_KEY, false),
+		notify:  notify,
 	}
 	if r.enabled {
 		checkerName := url.GetParam(constant.HEALTH_CHECKER, constant.DEFAULT_HEALTH_CHECKER)
@@ -87,7 +88,6 @@ func (r *HealthCheckRouter) Pool(invokers []protocol.Invoker) (router.AddrPool,
 			rb[healthy].Add(uint32(i))
 		}
 	}
-
 	return rb, nil
 }
 
diff --git a/cluster/router/healthcheck/health_check_route_test.go b/cluster/router/healthcheck/health_check_route_test.go
index 0730f105b7e010311576fc30adf94c8ad69b9614..f499c85c093add1cc247fdb9fac02e391ef22bfc 100644
--- a/cluster/router/healthcheck/health_check_route_test.go
+++ b/cluster/router/healthcheck/health_check_route_test.go
@@ -49,12 +49,17 @@ const (
 
 func TestHealthCheckRouterRoute(t *testing.T) {
 	defer protocol.CleanAllStatus()
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	consumerURL, _ := common.NewURL(healthCheck1001URL)
-	consumerURL.SetParam(HEALTH_ROUTE_ENABLED_KEY, "true")
+	consumerURL.SetParam(constant.HEALTH_ROUTE_ENABLED_KEY, "true")
 	url1, _ := common.NewURL(fmt.Sprintf(healthCheckRouteUrlFormat, healthCheckRoute1010IP))
 	url2, _ := common.NewURL(fmt.Sprintf(healthCheckRouteUrlFormat, healthCheckRoute1011IP))
 	url3, _ := common.NewURL(fmt.Sprintf(healthCheckRouteUrlFormat, healthCheckRoute1012IP))
-	hcr, _ := NewHealthCheckRouter(consumerURL)
+	hcr, _ := NewHealthCheckRouter(consumerURL, notify)
 
 	var invokers []protocol.Invoker
 	invoker1 := NewMockInvoker(url1)
@@ -112,13 +117,18 @@ func TestHealthCheckRouterRoute(t *testing.T) {
 
 func TestNewHealthCheckRouter(t *testing.T) {
 	defer protocol.CleanAllStatus()
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	url, _ := common.NewURL(fmt.Sprintf(healthCheckDubboUrlFormat, healthCheckDubbo1010IP))
-	hcr, _ := NewHealthCheckRouter(url)
+	hcr, _ := NewHealthCheckRouter(url, notify)
 	h := hcr.(*HealthCheckRouter)
 	assert.Nil(t, h.checker)
 
-	url.SetParam(HEALTH_ROUTE_ENABLED_KEY, "true")
-	hcr, _ = NewHealthCheckRouter(url)
+	url.SetParam(constant.HEALTH_ROUTE_ENABLED_KEY, "true")
+	hcr, _ = NewHealthCheckRouter(url, notify)
 	h = hcr.(*HealthCheckRouter)
 	assert.NotNil(t, h.checker)
 
@@ -130,7 +140,7 @@ func TestNewHealthCheckRouter(t *testing.T) {
 	url.SetParam(constant.CIRCUIT_TRIPPED_TIMEOUT_FACTOR_KEY, "500")
 	url.SetParam(constant.SUCCESSIVE_FAILED_REQUEST_THRESHOLD_KEY, "10")
 	url.SetParam(constant.OUTSTANDING_REQUEST_COUNT_LIMIT_KEY, "1000")
-	hcr, _ = NewHealthCheckRouter(url)
+	hcr, _ = NewHealthCheckRouter(url, notify)
 	h = hcr.(*HealthCheckRouter)
 	dhc = h.checker.(*DefaultHealthChecker)
 	assert.Equal(t, dhc.outStandingRequestConutLimit, int32(1000))
diff --git a/cluster/router/local/factory.go b/cluster/router/local/factory.go
new file mode 100644
index 0000000000000000000000000000000000000000..42e03e25abdfa4c04851bddd7f57434d4c03a112
--- /dev/null
+++ b/cluster/router/local/factory.go
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package local
+
+import (
+	"github.com/apache/dubbo-go/cluster/router"
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
+	"github.com/apache/dubbo-go/common/extension"
+)
+
+func init() {
+	extension.SetRouterFactory(constant.LocalPriorityRouterName, newLocalPriorityRouteFactory)
+}
+
+// LocalPriorityRouteFactory
+type LocalPriorityRouteFactory struct {
+}
+
+// newLocalPriorityRouteFactory construct a new LocalDiscRouteFactory
+func newLocalPriorityRouteFactory() router.PriorityRouterFactory {
+	return &LocalPriorityRouteFactory{}
+}
+
+// NewPriorityRouter construct a new NewLocalDiscRouter via url
+func (f *LocalPriorityRouteFactory) NewPriorityRouter(url *common.URL, notify chan struct{}) (router.PriorityRouter, error) {
+	return NewLocalPriorityRouter(url)
+}
diff --git a/cluster/router/local/factory_test.go b/cluster/router/local/factory_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..a5a683b4bcb90d77085ee3b9c127590299725e9f
--- /dev/null
+++ b/cluster/router/local/factory_test.go
@@ -0,0 +1,74 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package local
+
+import (
+	"context"
+	"testing"
+)
+
+import (
+	"github.com/stretchr/testify/assert"
+)
+
+import (
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/protocol"
+)
+
+// nolint
+type MockInvoker struct {
+	url *common.URL
+}
+
+// nolint
+func NewMockInvoker(url *common.URL) *MockInvoker {
+	return &MockInvoker{
+		url: url,
+	}
+}
+
+// nolint
+func (bi *MockInvoker) GetUrl() *common.URL {
+	return bi.url
+}
+
+// nolint
+func (bi *MockInvoker) IsAvailable() bool {
+	return true
+}
+
+// nolint
+func (bi *MockInvoker) IsDestroyed() bool {
+	return true
+}
+
+// nolint
+func (bi *MockInvoker) Invoke(_ context.Context, _ protocol.Invocation) protocol.Result {
+	return nil
+}
+
+// nolint
+func (bi *MockInvoker) Destroy() {
+}
+
+// nolint
+func TestLocalDiscRouteFactory(t *testing.T) {
+	factory := newLocalPriorityRouteFactory()
+	assert.NotNil(t, factory)
+}
diff --git a/cluster/router/local/self_priority_route.go b/cluster/router/local/self_priority_route.go
new file mode 100644
index 0000000000000000000000000000000000000000..87eaaf7837d546672b41bc9389503e9964344839
--- /dev/null
+++ b/cluster/router/local/self_priority_route.go
@@ -0,0 +1,106 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package local
+
+import (
+	"github.com/RoaringBitmap/roaring"
+)
+
+import (
+	"github.com/apache/dubbo-go/cluster/router"
+	"github.com/apache/dubbo-go/cluster/router/utils"
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/logger"
+	"github.com/apache/dubbo-go/protocol"
+)
+
+const (
+	localPriority = "local-priority"
+	name          = "local-priority-router"
+)
+
+// LocalPriorityRouter provides a ip-same-first routing logic
+// if there is not provider with same ip as consumer, it would not filter any invoker
+// if exists same ip invoker, it would retains this invoker only
+type LocalPriorityRouter struct {
+	url     *common.URL
+	localIP string
+}
+
+// NewLocalPriorityRouter construct an LocalPriorityRouter via url
+func NewLocalPriorityRouter(url *common.URL) (router.PriorityRouter, error) {
+	r := &LocalPriorityRouter{
+		url:     url,
+		localIP: url.Ip,
+	}
+	return r, nil
+}
+
+// Route gets a list of match-logic invoker
+func (r *LocalPriorityRouter) Route(invokers *roaring.Bitmap, cache router.Cache, url *common.URL, invocation protocol.Invocation) *roaring.Bitmap {
+	addrPool := cache.FindAddrPool(r)
+	// Add localPriority invoker to the list
+	selectedInvokers := utils.JoinIfNotEqual(addrPool[localPriority], invokers)
+	// If all invokers are considered not match, downgrade to all invoker
+	if selectedInvokers.IsEmpty() {
+		logger.Warnf(" Now all invokers are not match, so downgraded to all! Service: [%s]", url.ServiceKey())
+		return invokers
+	}
+	return selectedInvokers
+}
+
+// Pool separates same ip invoker from others.
+func (r *LocalPriorityRouter) Pool(invokers []protocol.Invoker) (router.AddrPool, router.AddrMetadata) {
+	rb := make(router.AddrPool, 8)
+	rb[localPriority] = roaring.NewBitmap()
+	localIpFound := false
+	for i, invoker := range invokers {
+		if invoker.GetUrl().Ip == r.localIP {
+			rb[localPriority].Add(uint32(i))
+			localIpFound = true
+		}
+	}
+	if localIpFound {
+		// found local desc
+		logger.Debug("found local ip ")
+		return rb, nil
+	}
+	for i, _ := range invokers {
+		rb[localPriority].Add(uint32(i))
+	}
+	return rb, nil
+}
+
+// ShouldPool will always return true to make sure local call logic constantly.
+func (r *LocalPriorityRouter) ShouldPool() bool {
+	return true
+}
+
+func (r *LocalPriorityRouter) Name() string {
+	return name
+}
+
+// Priority
+func (r *LocalPriorityRouter) Priority() int64 {
+	return 0
+}
+
+// URL Return URL in router
+func (r *LocalPriorityRouter) URL() *common.URL {
+	return r.url
+}
diff --git a/cluster/router/local/self_priority_route_test.go b/cluster/router/local/self_priority_route_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..88535d3dd2b438cdcc9c4bfa1789a40256813a80
--- /dev/null
+++ b/cluster/router/local/self_priority_route_test.go
@@ -0,0 +1,76 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package local
+
+import (
+	"fmt"
+	"testing"
+)
+
+import (
+	"github.com/stretchr/testify/assert"
+)
+
+import (
+	"github.com/apache/dubbo-go/cluster/router"
+	"github.com/apache/dubbo-go/cluster/router/chain"
+	"github.com/apache/dubbo-go/cluster/router/utils"
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/protocol"
+	"github.com/apache/dubbo-go/protocol/invocation"
+)
+
+const (
+	localDiscRoute1010IP         = "192.168.10.10"
+	localDiscRoute1011IP         = "192.168.10.11"
+	localDiscRoute1012IP         = "192.168.10.12"
+	localDiscRouteMethodNameTest = "test"
+	localDiscRouteUrlFormat      = "dubbo://%s:20000/com.ikurento.user.UserProvider"
+)
+
+func TestLocalDiscRouterRoute(t *testing.T) {
+	defer protocol.CleanAllStatus()
+	consumerURL, _ := common.NewURL(fmt.Sprintf(localDiscRouteUrlFormat, localDiscRoute1010IP))
+	url1, _ := common.NewURL(fmt.Sprintf(localDiscRouteUrlFormat, localDiscRoute1010IP))
+	url2, _ := common.NewURL(fmt.Sprintf(localDiscRouteUrlFormat, localDiscRoute1011IP))
+	url3, _ := common.NewURL(fmt.Sprintf(localDiscRouteUrlFormat, localDiscRoute1012IP))
+	hcr, _ := NewLocalPriorityRouter(consumerURL)
+
+	var invokers []protocol.Invoker
+	invoker1 := NewMockInvoker(url1)
+	invoker2 := NewMockInvoker(url2)
+	invoker3 := NewMockInvoker(url3)
+	invokers = append(invokers, invoker1, invoker2, invoker3)
+	inv := invocation.NewRPCInvocation(localDiscRouteMethodNameTest, nil, nil)
+	res := hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*LocalPriorityRouter), invokers), consumerURL, inv)
+	// now only same ip invoker is selected
+	assert.True(t, len(res.ToArray()) == 1)
+
+	// now all invoker with ip that not match client are selected
+	invokers = invokers[1:]
+	res = hcr.Route(utils.ToBitmap(invokers), setUpAddrCache(hcr.(*LocalPriorityRouter), invokers), consumerURL, inv)
+	assert.True(t, len(res.ToArray()) == 2)
+}
+
+func setUpAddrCache(r router.Poolable, addrs []protocol.Invoker) router.Cache {
+	pool, info := r.Pool(addrs)
+	cache := chain.BuildCache(addrs)
+	cache.SetAddrMeta(r.Name(), info)
+	cache.SetAddrPool(r.Name(), pool)
+	return cache
+}
diff --git a/cluster/router/router.go b/cluster/router/router.go
index 8a19dcf8cc2540ab0a30b8b6de8521e9759012ee..1d71554f6b547bce86a2f960ceebfcf6c2a1daa2 100644
--- a/cluster/router/router.go
+++ b/cluster/router/router.go
@@ -30,7 +30,7 @@ import (
 // PriorityRouterFactory creates creates priority router with url
 type PriorityRouterFactory interface {
 	// NewPriorityRouter creates router instance with URL
-	NewPriorityRouter(*common.URL) (PriorityRouter, error)
+	NewPriorityRouter(*common.URL, chan struct{}) (PriorityRouter, error)
 }
 
 // FilePriorityRouterFactory creates priority router with parse config file
diff --git a/cluster/router/tag/factory.go b/cluster/router/tag/factory.go
index a5d989cd31453f6d02eee9c5902dc3666defe4fe..fd2c15cddfe521a66f5ad4c5072fa0fb325a3201 100644
--- a/cluster/router/tag/factory.go
+++ b/cluster/router/tag/factory.go
@@ -37,8 +37,8 @@ func NewTagRouterFactory() router.PriorityRouterFactory {
 
 // NewPriorityRouter create a tagRouter by tagRouterFactory with a url
 // The url contains router configuration information
-func (c *tagRouterFactory) NewPriorityRouter(url *common.URL) (router.PriorityRouter, error) {
-	return NewTagRouter(url)
+func (c *tagRouterFactory) NewPriorityRouter(url *common.URL, notify chan struct{}) (router.PriorityRouter, error) {
+	return NewTagRouter(url, notify)
 }
 
 // NewFileRouter create a tagRouter by profile content
diff --git a/cluster/router/tag/factory_test.go b/cluster/router/tag/factory_test.go
index b350bb2a915ce9abae98ba46bda346fba7ad6b5b..2a8eac20bace9047563568d2bda2e4efef09c392 100644
--- a/cluster/router/tag/factory_test.go
+++ b/cluster/router/tag/factory_test.go
@@ -39,7 +39,12 @@ func TestTagRouterFactoryNewRouter(t *testing.T) {
 	u1, err := common.NewURL(fmt.Sprintf(factoryFormat, factoryLocalIP))
 	assert.Nil(t, err)
 	factory := NewTagRouterFactory()
-	tagRouter, e := factory.NewPriorityRouter(u1)
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
+	tagRouter, e := factory.NewPriorityRouter(u1, notify)
 	assert.Nil(t, e)
 	assert.NotNil(t, tagRouter)
 }
diff --git a/cluster/router/tag/file.go b/cluster/router/tag/file.go
index 94daf1508eb7b3f4d8a8cacdbd6ed634be6852da..81c25109dd85f2e358db57633967a851618bf924 100644
--- a/cluster/router/tag/file.go
+++ b/cluster/router/tag/file.go
@@ -41,10 +41,11 @@ type FileTagRouter struct {
 	router     *tagRouter
 	routerRule *RouterRule
 	url        *common.URL
-	force      bool
+	//force      bool
 }
 
 // NewFileTagRouter Create file tag router instance with content (from config file)
+// todo fix this router, now it is useless, tag router is nil
 func NewFileTagRouter(content []byte) (*FileTagRouter, error) {
 	fileRouter := &FileTagRouter{}
 	rule, err := getRule(string(content))
@@ -52,7 +53,8 @@ func NewFileTagRouter(content []byte) (*FileTagRouter, error) {
 		return nil, perrors.Errorf("yaml.Unmarshal() failed , error:%v", perrors.WithStack(err))
 	}
 	fileRouter.routerRule = rule
-	fileRouter.router, err = NewTagRouter(fileRouter.URL())
+	notify := make(chan struct{})
+	fileRouter.router, err = NewTagRouter(fileRouter.URL(), notify)
 	return fileRouter, err
 }
 
diff --git a/cluster/router/tag/router_rule.go b/cluster/router/tag/router_rule.go
index c0a2d763ae7396ae41694f558f443d46084c3357..512d8f10795b04a18947396be8ae7fa6c4f49d4a 100644
--- a/cluster/router/tag/router_rule.go
+++ b/cluster/router/tag/router_rule.go
@@ -84,9 +84,9 @@ func (t *RouterRule) getTagNames() []string {
 	return result
 }
 
-func (t *RouterRule) hasTag(tag string) bool {
-	return len(t.TagNameToAddresses[tag]) > 0
-}
+//func (t *RouterRule) hasTag(tag string) bool {
+//	return len(t.TagNameToAddresses[tag]) > 0
+//}
 
 func (t *RouterRule) getAddressToTagNames() map[string][]string {
 	return t.AddressToTagNames
@@ -96,10 +96,10 @@ func (t *RouterRule) getTagNameToAddresses() map[string][]string {
 	return t.TagNameToAddresses
 }
 
-func (t *RouterRule) getTags() []Tag {
-	return t.Tags
-}
+//func (t *RouterRule) getTags() []Tag {
+//	return t.Tags
+//}
 
-func (t *RouterRule) setTags(tags []Tag) {
-	t.Tags = tags
-}
+//func (t *RouterRule) setTags(tags []Tag) {
+//	t.Tags = tags
+//}
diff --git a/cluster/router/tag/tag_router.go b/cluster/router/tag/tag_router.go
index c7f53047c1e2beee4545a10302e9f307f06c33d8..3d0393a487deb3eb592da3edb9f37becc394d7df 100644
--- a/cluster/router/tag/tag_router.go
+++ b/cluster/router/tag/tag_router.go
@@ -53,7 +53,7 @@ type addrMetadata struct {
 	// application name
 	application string
 	// is rule a runtime rule
-	ruleRuntime bool
+	//ruleRuntime bool
 	// is rule a force rule
 	ruleForce bool
 	// is rule a valid rule
@@ -76,10 +76,11 @@ type tagRouter struct {
 	application   string
 	ruleChanged   bool
 	mutex         sync.RWMutex
+	notify        chan struct{}
 }
 
 // NewTagRouter returns a tagRouter instance if url is not nil
-func NewTagRouter(url *common.URL) (*tagRouter, error) {
+func NewTagRouter(url *common.URL, notify chan struct{}) (*tagRouter, error) {
 	if url == nil {
 		return nil, perrors.Errorf("Illegal route URL!")
 	}
@@ -87,6 +88,7 @@ func NewTagRouter(url *common.URL) (*tagRouter, error) {
 		url:      url,
 		enabled:  url.GetParamBool(constant.RouterEnabled, true),
 		priority: url.GetParamInt(constant.RouterPriority, 0),
+		notify:   notify,
 	}, nil
 }
 
@@ -191,6 +193,7 @@ func (c *tagRouter) Process(event *config_center.ConfigChangeEvent) {
 	defer c.mutex.Unlock()
 	c.tagRouterRule = routerRule
 	c.ruleChanged = true
+	c.notify <- struct{}{}
 }
 
 // URL gets the url of tagRouter
@@ -227,7 +230,7 @@ func (c *tagRouter) Pool(invokers []protocol.Invoker) (router.AddrPool, router.A
 
 // fetchRuleIfNecessary fetches, parses rule and register listener for the further change
 func (c *tagRouter) fetchRuleIfNecessary(invokers []protocol.Invoker) {
-	if invokers == nil || len(invokers) == 0 {
+	if len(invokers) == 0 {
 		return
 	}
 
diff --git a/cluster/router/tag/tag_router_test.go b/cluster/router/tag/tag_router_test.go
index 3f7b979f3d52d51ab50c94ea32e87b5eb4f9591e..efee5bd6848f9c19727600c789729c446106fc95 100644
--- a/cluster/router/tag/tag_router_test.go
+++ b/cluster/router/tag/tag_router_test.go
@@ -73,8 +73,7 @@ const (
 )
 
 var (
-	zkFormat        = "zookeeper://%s:%d"
-	conditionFormat = "condition://%s/com.foo.BarService"
+	zkFormat = "zookeeper://%s:%d"
 )
 
 // MockInvoker is only mock the Invoker to support test tagRouter
@@ -120,17 +119,27 @@ func (bi *MockInvoker) Destroy() {
 
 func TestTagRouterPriority(t *testing.T) {
 	u1, err := common.NewURL(tagRouterTestUserConsumerTag)
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	assert.Nil(t, err)
-	tagRouter, e := NewTagRouter(u1)
+	tagRouter, e := NewTagRouter(u1, notify)
 	assert.Nil(t, e)
 	p := tagRouter.Priority()
 	assert.Equal(t, int64(0), p)
 }
 
 func TestTagRouterRouteForce(t *testing.T) {
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
 	u1, e1 := common.NewURL(tagRouterTestUserConsumerTag)
 	assert.Nil(t, e1)
-	tagRouter, e := NewTagRouter(u1)
+	tagRouter, e := NewTagRouter(u1, notify)
 	assert.Nil(t, e)
 
 	u2, e2 := common.NewURL(tagRouterTestHangZhouUrl)
@@ -162,7 +171,12 @@ func TestTagRouterRouteForce(t *testing.T) {
 func TestTagRouterRouteNoForce(t *testing.T) {
 	u1, e1 := common.NewURL(tagRouterTestUserConsumer)
 	assert.Nil(t, e1)
-	tagRouter, e := NewTagRouter(u1)
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
+	tagRouter, e := NewTagRouter(u1, notify)
 	assert.Nil(t, e)
 
 	u2, e2 := common.NewURL(tagRouterTestHangZhouUrl)
@@ -225,7 +239,12 @@ func TestRouteBeijingInvoker(t *testing.T) {
 	invokers = append(invokers, inv2, inv3, inv4, inv5)
 
 	url, _ := common.NewURL(tagRouterTestBeijingUrl)
-	tagRouter, _ := NewTagRouter(url)
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
+	tagRouter, _ := NewTagRouter(url, notify)
 
 	rb := roaring.NewBitmap()
 	rb.AddRange(0, uint64(len(invokers)))
@@ -238,7 +257,7 @@ func TestRouteBeijingInvoker(t *testing.T) {
 
 type DynamicTagRouter struct {
 	suite.Suite
-	rule *RouterRule
+	//rule *RouterRule
 
 	route       *tagRouter
 	zkClient    *zookeeper.ZookeeperClient
@@ -301,7 +320,12 @@ tags:
 	url, e1 := common.NewURL(tagRouterTestUserConsumerTag)
 	suite.Nil(e1)
 
-	tagRouter, err := NewTagRouter(url)
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
+	tagRouter, err := NewTagRouter(url, notify)
 	suite.Nil(err)
 	suite.NotNil(tagRouter)
 	suite.route = tagRouter
@@ -310,7 +334,8 @@ tags:
 
 func (suite *DynamicTagRouter) TearDownTest() {
 	suite.zkClient.Close()
-	suite.testCluster.Stop()
+	err := suite.testCluster.Stop()
+	suite.Nil(err)
 }
 
 func (suite *DynamicTagRouter) TestDynamicTagRouterSetByIPv4() {
@@ -365,7 +390,12 @@ func (suite *DynamicTagRouter) TestDynamicTagRouterByNoTagAndAddressMatch() {
 func TestProcess(t *testing.T) {
 	u1, err := common.NewURL(tagRouterTestUserConsumerTag)
 	assert.Nil(t, err)
-	tagRouter, e := NewTagRouter(u1)
+	notify := make(chan struct{})
+	go func() {
+		for range notify {
+		}
+	}()
+	tagRouter, e := NewTagRouter(u1, notify)
 	assert.Nil(t, e)
 	assert.NotNil(t, tagRouter)
 
@@ -383,12 +413,17 @@ tags:
   - name: hangzhou
     addresses: [192.168.1.3, 192.168.1.4]
 `
+	go func() {
+		for range notify {
+		}
+	}()
 	tagRouter.Process(&config_center.ConfigChangeEvent{Value: testYML, ConfigType: remoting.EventTypeAdd})
 	assert.NotNil(t, tagRouter.tagRouterRule)
 	assert.Equal(t, []string{"beijing", "hangzhou"}, tagRouter.tagRouterRule.getTagNames())
 	assert.Equal(t, []string{"192.168.1.1", "192.168.1.2", "192.168.1.3", "192.168.1.4"}, tagRouter.tagRouterRule.getAddresses())
 	assert.Equal(t, []string{"192.168.1.3", "192.168.1.4"}, tagRouter.tagRouterRule.getTagNameToAddresses()["hangzhou"])
 	assert.Equal(t, []string{"beijing"}, tagRouter.tagRouterRule.getAddressToTagNames()["192.168.1.1"])
+
 	tagRouter.Process(&config_center.ConfigChangeEvent{ConfigType: remoting.EventTypeDel})
 	assert.Nil(t, tagRouter.tagRouterRule)
 }
diff --git a/common/config/environment.go b/common/config/environment.go
index 44cdd1fca18bfed306b135fe38ef536779e148aa..c5651a335444e06f12eb5af831d878ffdbbaeb9f 100644
--- a/common/config/environment.go
+++ b/common/config/environment.go
@@ -34,8 +34,8 @@ import (
 // We just have config center configuration which can override configuration in consumer.yaml & provider.yaml.
 // But for add these features in future ,I finish the environment struct following Environment class in java.
 type Environment struct {
-	configCenterFirst    bool
-	externalConfigs      sync.Map
+	configCenterFirst bool
+	//externalConfigs      sync.Map
 	externalConfigMap    sync.Map
 	appExternalConfigMap sync.Map
 	dynamicConfiguration config_center.DynamicConfiguration
diff --git a/common/constant/default.go b/common/constant/default.go
index 4165942a615e220f6384a898b07c04bafd39c3b0..bbe022cb2efebf7dc716f324253743a5a5a0aff5 100644
--- a/common/constant/default.go
+++ b/common/constant/default.go
@@ -81,7 +81,7 @@ const (
 
 const (
 	SIMPLE_METADATA_SERVICE_NAME = "MetadataService"
-	DEFAULT_REVIESION            = "N/A"
+	DEFAULT_REVISION             = "N/A"
 )
 
 const (
diff --git a/common/constant/key.go b/common/constant/key.go
index 9525511cdaac64083cc595e1c0a6327a4ded6f9c..4b867d8d0c3fb21cb51b92771437f3bb69902dd2 100644
--- a/common/constant/key.go
+++ b/common/constant/key.go
@@ -17,6 +17,8 @@
 
 package constant
 
+type DubboCtxKey string
+
 const (
 	ASYNC_KEY = "async" // it's value should be "true" or "false" of string type
 )
@@ -47,8 +49,8 @@ const (
 	PORT_KEY                 = "port"
 	PROTOCOL_KEY             = "protocol"
 	PATH_SEPARATOR           = "/"
-	DUBBO_KEY                = "dubbo"
-	SSL_ENABLED_KEY          = "ssl-enabled"
+	//DUBBO_KEY                = "dubbo"
+	SSL_ENABLED_KEY = "ssl-enabled"
 )
 
 const (
@@ -89,10 +91,11 @@ const (
 	RETRY_PERIOD_KEY                       = "retry.period"
 	RETRY_TIMES_KEY                        = "retry.times"
 	CYCLE_REPORT_KEY                       = "cycle.report"
+	DEFAULT_BLACK_LIST_RECOVER_BLOCK       = 16
 )
 
 const (
-	DUBBOGO_CTX_KEY = "dubbogo-ctx"
+	DUBBOGO_CTX_KEY = DubboCtxKey("dubbogo-ctx")
 )
 
 const (
@@ -127,6 +130,7 @@ const (
 	TAG_ROUTE_PROTOCOL       = "tag"
 	PROVIDERS_CATEGORY       = "providers"
 	ROUTER_KEY               = "router"
+	EXPORT_KEY               = "export"
 )
 
 const (
@@ -170,6 +174,7 @@ const (
 	NACOS_NAMESPACE_ID           = "namespaceId"
 	NACOS_PASSWORD               = "password"
 	NACOS_USERNAME               = "username"
+	NACOS_NOT_LOAD_LOCAL_CACHE   = "nacos.not.load.cache"
 )
 
 const (
@@ -197,7 +202,7 @@ const (
 )
 
 const (
-	TRACING_REMOTE_SPAN_CTX = "tracing.remote.span.ctx"
+	TRACING_REMOTE_SPAN_CTX = DubboCtxKey("tracing.remote.span.ctx")
 )
 
 // Use for router module
@@ -210,6 +215,10 @@ const (
 	ListenableRouterName = "listenable"
 	// HealthCheckRouterName Specify the name of HealthCheckRouter
 	HealthCheckRouterName = "health_check"
+	// LocalPriorityRouterName Specify the name of LocalPriorityRouter
+	LocalPriorityRouterName = "local_priority"
+	// ConnCheckRouterName Specify the name of ConnCheckRouter
+	ConnCheckRouterName = "conn_check"
 	// TagRouterName Specify the name of TagRouter
 	TagRouterName = "tag"
 	// TagRouterRuleSuffix Specify tag router suffix
@@ -235,9 +244,10 @@ const (
 	// ForceUseTag is the tag in attachment
 	ForceUseTag = "dubbo.force.tag"
 	Tagkey      = "dubbo.tag"
-
-	// Attachment key in context in invoker
-	AttachmentKey = "attachment"
+	// HEALTH_ROUTE_ENABLED_KEY defines if use health router
+	HEALTH_ROUTE_ENABLED_KEY = "health.route.enabled"
+	// AttachmentKey in context in invoker
+	AttachmentKey = DubboCtxKey("attachment")
 )
 
 const (
@@ -264,7 +274,7 @@ const (
 	// signature format
 	SIGNATURE_STRING_FORMAT = "%s#%s#%s#%s"
 	// key whether enable signature
-	PARAMTER_SIGNATURE_ENABLE_KEY = "param.sign"
+	PARAMETER_SIGNATURE_ENABLE_KEY = "param.sign"
 	// consumer
 	CONSUMER = "consumer"
 	// key of access key id
@@ -292,7 +302,9 @@ const (
 	HEALTH_CHECKER = "health.checker"
 	// The name of the default implementation of HealthChecker
 	DEFAULT_HEALTH_CHECKER = "default"
-	// The key of oustanding-request-limit
+	// The name of the default implementation of C
+	DEFAULT_CONN_CHECKER = "default"
+	// The key of outstanding-request-limit\
 	OUTSTANDING_REQUEST_COUNT_LIMIT_KEY = "outstanding.request.limit"
 	// The key of successive-failed-request's threshold
 	SUCCESSIVE_FAILED_REQUEST_THRESHOLD_KEY = "successive.failed.threshold"
diff --git a/common/constant/version.go b/common/constant/version.go
index 730224376054a36b0c7cfeda7d5ea5e7ce058618..0403e3aff7d77ed614c727addf9e9a162e60b69c 100644
--- a/common/constant/version.go
+++ b/common/constant/version.go
@@ -19,9 +19,9 @@ package constant
 
 const (
 	// Version apache/dubbo-go version
-	Version = "1.3.0"
+	Version = "1.5.5"
 	// Name module name
 	Name = "dubbogo"
 	// Date release date
-	DATE = "2020/01/12"
+	DATE = "2021/01/05"
 )
diff --git a/common/extension/config_post_processor.go b/common/extension/config_post_processor.go
new file mode 100644
index 0000000000000000000000000000000000000000..db126b744d54562a7f45b59aec26ef6e950a23a8
--- /dev/null
+++ b/common/extension/config_post_processor.go
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package extension
+
+import (
+	"github.com/apache/dubbo-go/config/interfaces"
+)
+
+var (
+	processors = make(map[string]interfaces.ConfigPostProcessor)
+)
+
+// SetConfigPostProcessor registers a ConfigPostProcessor with the given name.
+func SetConfigPostProcessor(name string, processor interfaces.ConfigPostProcessor) {
+	processors[name] = processor
+}
+
+// GetConfigPostProcessor finds a ConfigPostProcessor by name.
+func GetConfigPostProcessor(name string) interfaces.ConfigPostProcessor {
+	return processors[name]
+}
+
+// GetConfigPostProcessors returns all registered instances of ConfigPostProcessor.
+func GetConfigPostProcessors() []interfaces.ConfigPostProcessor {
+	ret := make([]interfaces.ConfigPostProcessor, 0, len(processors))
+	for _, v := range processors {
+		ret = append(ret, v)
+	}
+	return ret
+}
diff --git a/common/extension/conn_checker.go b/common/extension/conn_checker.go
new file mode 100644
index 0000000000000000000000000000000000000000..fbd9e34b2366f62a355e574c373dad4a290fe814
--- /dev/null
+++ b/common/extension/conn_checker.go
@@ -0,0 +1,41 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package extension
+
+import (
+	"github.com/apache/dubbo-go/cluster/router"
+	"github.com/apache/dubbo-go/common"
+)
+
+var (
+	connCheckers = make(map[string]func(url *common.URL) router.ConnChecker)
+)
+
+// SetHealthChecker sets the HealthChecker with @name
+func SetConnChecker(name string, fcn func(_ *common.URL) router.ConnChecker) {
+	connCheckers[name] = fcn
+}
+
+// GetHealthChecker gets the HealthChecker with @name
+func GetConnChecker(name string, url *common.URL) router.ConnChecker {
+	f, ok := connCheckers[name]
+	if !ok || f == nil {
+		panic("connCheckers for " + name + " is not existing, make sure you have import the package.")
+	}
+	return connCheckers[name](url)
+}
diff --git a/common/extension/metadata_service.go b/common/extension/metadata_service.go
index e35677d148eee121c3a6c018a128b5d372c6f2c7..08ddbc333e85fbfc328bec15aa76d2a588b11afb 100644
--- a/common/extension/metadata_service.go
+++ b/common/extension/metadata_service.go
@@ -26,12 +26,15 @@ import (
 )
 
 import (
+	"github.com/apache/dubbo-go/common/logger"
 	"github.com/apache/dubbo-go/metadata/service"
 )
 
 var (
 	// there will be two types: local or remote
 	metadataServiceInsMap = make(map[string]func() (service.MetadataService, error), 2)
+	// remoteMetadataService
+	remoteMetadataService service.MetadataService
 )
 
 // SetMetadataService will store the msType => creator pair
@@ -48,3 +51,17 @@ func GetMetadataService(msType string) (service.MetadataService, error) {
 		"local - github.com/apache/dubbo-go/metadata/service/inmemory, \n"+
 		"remote - github.com/apache/dubbo-go/metadata/service/remote", msType))
 }
+
+// GetRemoteMetadataService will get a RemoteMetadataService instance
+func GetRemoteMetadataService() (service.MetadataService, error) {
+	if remoteMetadataService != nil {
+		return remoteMetadataService, nil
+	}
+	if creator, ok := metadataServiceInsMap["remote"]; ok {
+		var err error
+		remoteMetadataService, err = creator()
+		return remoteMetadataService, err
+	}
+	logger.Warn("could not find the metadata service creator for metadataType: remote")
+	return nil, perrors.New(fmt.Sprintf("could not find the metadata service creator for metadataType: remote"))
+}
diff --git a/common/logger/logger.go b/common/logger/logger.go
index 63eda231ddd174468602577d8b042bc0664700d0..8519543c6a143c08d34d11dc8513a7294e48773f 100644
--- a/common/logger/logger.go
+++ b/common/logger/logger.go
@@ -18,6 +18,7 @@
 package logger
 
 import (
+	"flag"
 	"io/ioutil"
 	"log"
 	"os"
@@ -64,8 +65,14 @@ func init() {
 	if logger != nil {
 		return
 	}
-	logConfFile := os.Getenv(constant.APP_LOG_CONF_FILE)
-	err := InitLog(logConfFile)
+
+	fs := flag.NewFlagSet("log", flag.ContinueOnError)
+	logConfFile := fs.String("logConf", os.Getenv(constant.APP_LOG_CONF_FILE), "default log config path")
+	fs.Parse(os.Args[1:])
+	for len(fs.Args()) != 0 {
+		fs.Parse(fs.Args()[1:])
+	}
+	err := InitLog(*logConfFile)
 	if err != nil {
 		log.Printf("[InitLog] warn: %v", err)
 	}
@@ -163,6 +170,7 @@ type OpsLogger interface {
 // SetLoggerLevel use for set logger level
 func (dl *DubboLogger) SetLoggerLevel(level string) {
 	l := new(zapcore.Level)
-	l.Set(level)
-	dl.dynamicLevel.SetLevel(*l)
+	if err := l.Set(level); err == nil {
+		dl.dynamicLevel.SetLevel(*l)
+	}
 }
diff --git a/common/proxy/proxy.go b/common/proxy/proxy.go
index d51ce1cc1bf40a8ad25804c797eeed3b88e7d132..fd3481021c99d64843a20e8e41f7938b37efbbba 100644
--- a/common/proxy/proxy.go
+++ b/common/proxy/proxy.go
@@ -40,23 +40,47 @@ import (
 type Proxy struct {
 	rpc         common.RPCService
 	invoke      protocol.Invoker
-	callBack    interface{}
+	callback    interface{}
 	attachments map[string]string
-
-	once sync.Once
+	implement   ImplementFunc
+	once        sync.Once
 }
 
+type (
+	// ProxyOption a function to init Proxy with options
+	ProxyOption func(p *Proxy)
+	// ImplementFunc function for proxy impl of RPCService functions
+	ImplementFunc func(p *Proxy, v common.RPCService)
+)
+
 var (
 	typError = reflect.Zero(reflect.TypeOf((*error)(nil)).Elem()).Type()
 )
 
 // NewProxy create service proxy.
-func NewProxy(invoke protocol.Invoker, callBack interface{}, attachments map[string]string) *Proxy {
-	return &Proxy{
+func NewProxy(invoke protocol.Invoker, callback interface{}, attachments map[string]string) *Proxy {
+	return NewProxyWithOptions(invoke, callback, attachments,
+		WithProxyImplementFunc(DefaultProxyImplementFunc))
+}
+
+// NewProxyWithOptions create service proxy with options.
+func NewProxyWithOptions(invoke protocol.Invoker, callback interface{}, attachments map[string]string, opts ...ProxyOption) *Proxy {
+	p := &Proxy{
 		invoke:      invoke,
-		callBack:    callBack,
+		callback:    callback,
 		attachments: attachments,
 	}
+	for _, opt := range opts {
+		opt(p)
+	}
+	return p
+}
+
+// WithProxyImplementFunc an option function to setup proxy.ImplementFunc
+func WithProxyImplementFunc(f ImplementFunc) ProxyOption {
+	return func(p *Proxy) {
+		p.implement = f
+	}
 }
 
 // Implement
@@ -66,7 +90,29 @@ func NewProxy(invoke protocol.Invoker, callBack interface{}, attachments map[str
 //  		Yyy func(ctx context.Context, args []interface{}, rsp *Zzz) error
 // 		}
 func (p *Proxy) Implement(v common.RPCService) {
+	p.once.Do(func() {
+		p.implement(p, v)
+		p.rpc = v
+	})
+}
+
+// Get gets rpc service instance.
+func (p *Proxy) Get() common.RPCService {
+	return p.rpc
+}
 
+// GetCallback gets callback.
+func (p *Proxy) GetCallback() interface{} {
+	return p.callback
+}
+
+// GetInvoker gets Invoker.
+func (p *Proxy) GetInvoker() protocol.Invoker {
+	return p.invoke
+}
+
+// DefaultProxyImplementFunc the default function for proxy impl
+func DefaultProxyImplementFunc(p *Proxy, v common.RPCService) {
 	// check parameters, incoming interface must be a elem's pointer.
 	valueOf := reflect.ValueOf(v)
 	logger.Debugf("[Implement] reflect.TypeOf: %s", valueOf.String())
@@ -139,13 +185,13 @@ func (p *Proxy) Implement(v common.RPCService) {
 
 			inv = invocation_impl.NewRPCInvocationWithOptions(invocation_impl.WithMethodName(methodName),
 				invocation_impl.WithArguments(inIArr), invocation_impl.WithReply(reply.Interface()),
-				invocation_impl.WithCallBack(p.callBack), invocation_impl.WithParameterValues(inVArr))
+				invocation_impl.WithCallBack(p.callback), invocation_impl.WithParameterValues(inVArr))
 
 			for k, value := range p.attachments {
 				inv.SetAttachments(k, value)
 			}
 
-			// add user setAttachment.  It is compatibility with previous versions.
+			// add user setAttachment. It is compatibility with previous versions.
 			atm := invCtx.Value(constant.AttachmentKey)
 			if m, ok := atm.(map[string]string); ok {
 				for k, value := range m {
@@ -159,15 +205,11 @@ func (p *Proxy) Implement(v common.RPCService) {
 			}
 
 			result := p.invoke.Invoke(invCtx, inv)
-			if len(result.Attachments()) > 0 {
-				invCtx = context.WithValue(invCtx, constant.AttachmentKey, result.Attachments())
-			}
-
 			err = result.Error()
 			if err != nil {
 				// the cause reason
 				err = perrors.Cause(err)
-				// if some error happened, it should be log some info in the seperate file.
+				// if some error happened, it should be log some info in the separate file.
 				if throwabler, ok := err.(java_exception.Throwabler); ok {
 					logger.Warnf("invoke service throw exception: %v , stackTraceElements: %v", err.Error(), throwabler.GetStackTrace())
 				} else {
@@ -220,18 +262,4 @@ func (p *Proxy) Implement(v common.RPCService) {
 		}
 	}
 
-	p.once.Do(func() {
-		p.rpc = v
-	})
-
-}
-
-// Get gets rpc service instance.
-func (p *Proxy) Get() common.RPCService {
-	return p.rpc
-}
-
-// GetCallback gets callback.
-func (p *Proxy) GetCallback() interface{} {
-	return p.callBack
 }
diff --git a/common/proxy/proxy_factory/default.go b/common/proxy/proxy_factory/default.go
index 067c077294d9dfc1ade1cc2b1181b42f3ae4ba55..ff3d7955a027411b0697797d32a44023f8f70caf 100644
--- a/common/proxy/proxy_factory/default.go
+++ b/common/proxy/proxy_factory/default.go
@@ -97,7 +97,7 @@ func (pi *ProxyInvoker) Invoke(ctx context.Context, invocation protocol.Invocati
 	args := invocation.Arguments()
 
 	// get service
-	svc := common.ServiceMap.GetService(proto, path)
+	svc := common.ServiceMap.GetServiceByServiceKey(proto, url.ServiceKey())
 	if svc == nil {
 		logger.Errorf("cannot find service [%s] in %s", path, proto)
 		result.SetError(perrors.Errorf("cannot find service [%s] in %s", path, proto))
diff --git a/common/proxy/proxy_test.go b/common/proxy/proxy_test.go
index c6f659666180310887f2101966e59669df707e54..c335bf67834074607619edc734f0e0b3c2d72124 100644
--- a/common/proxy/proxy_test.go
+++ b/common/proxy/proxy_test.go
@@ -19,6 +19,7 @@ package proxy
 
 import (
 	"context"
+	"fmt"
 	"reflect"
 	"testing"
 )
@@ -131,10 +132,10 @@ func TestProxyImplementForContext(t *testing.T) {
 	p := NewProxy(invoker, nil, map[string]string{constant.ASYNC_KEY: "false"})
 	s := &TestService{}
 	p.Implement(s)
-	attahments1 := make(map[string]interface{}, 4)
-	attahments1["k1"] = "v1"
-	attahments1["k2"] = "v2"
-	context := context.WithValue(context.Background(), constant.AttachmentKey, attahments1)
+	attachments1 := make(map[string]interface{}, 4)
+	attachments1["k1"] = "v1"
+	attachments1["k2"] = "v2"
+	context := context.WithValue(context.Background(), constant.AttachmentKey, attachments1)
 	r, err := p.Get().(*TestService).MethodSix(context, "xxx")
 	v1 := r.(map[string]interface{})
 	assert.NoError(t, err)
@@ -145,11 +146,14 @@ type TestProxyInvoker struct {
 	protocol.BaseInvoker
 }
 
-func (bi *TestProxyInvoker) Invoke(context context.Context, inv protocol.Invocation) protocol.Result {
+func (bi *TestProxyInvoker) Invoke(_ context.Context, inv protocol.Invocation) protocol.Result {
 	rpcInv := inv.(*invocation.RPCInvocation)
 	mapV := inv.Attachments()
 	mapV["TestProxyInvoker"] = "TestProxyInvokerValue"
-	hessian2.ReflectResponse(mapV, rpcInv.Reply())
+	if err := hessian2.ReflectResponse(mapV, rpcInv.Reply()); err != nil {
+		fmt.Printf("hessian2.ReflectResponse(mapV:%v) = error:%v", mapV, err)
+	}
+
 	return &protocol.RPCResult{
 		Rest: inv.Arguments(),
 	}
diff --git a/common/rpc_service.go b/common/rpc_service.go
index 5ed4df6d717db31021d8585a88d5576f59756f8a..30d72c1420f254182f5d2f16c6fc9444881f0b71 100644
--- a/common/rpc_service.go
+++ b/common/rpc_service.go
@@ -106,10 +106,10 @@ func (m *MethodType) ReplyType() reflect.Type {
 	return m.replyType
 }
 
-// SuiteContext tranfers @ctx to reflect.Value type or get it from @m.ctxType.
+// SuiteContext transfers @ctx to reflect.Value type or get it from @m.ctxType.
 func (m *MethodType) SuiteContext(ctx context.Context) reflect.Value {
-	if contextv := reflect.ValueOf(ctx); contextv.IsValid() {
-		return contextv
+	if ctxV := reflect.ValueOf(ctx); ctxV.IsValid() {
+		return ctxV
 	}
 	return reflect.Zero(m.ctxType)
 }
@@ -156,12 +156,18 @@ type serviceMap struct {
 	interfaceMap map[string][]*Service          // interface -> service
 }
 
-// GetService gets a service defination by protocol and name
-func (sm *serviceMap) GetService(protocol, name string) *Service {
+// GetService gets a service definition by protocol and name
+func (sm *serviceMap) GetService(protocol, interfaceName, group, version string) *Service {
+	serviceKey := ServiceKey(interfaceName, group, version)
+	return sm.GetServiceByServiceKey(protocol, serviceKey)
+}
+
+// GetService gets a service definition by protocol and service key
+func (sm *serviceMap) GetServiceByServiceKey(protocol, serviceKey string) *Service {
 	sm.mutex.RLock()
 	defer sm.mutex.RUnlock()
 	if s, ok := sm.serviceMap[protocol]; ok {
-		if srv, ok := s[name]; ok {
+		if srv, ok := s[serviceKey]; ok {
 			return srv
 		}
 		return nil
@@ -180,7 +186,7 @@ func (sm *serviceMap) GetInterface(interfaceName string) []*Service {
 }
 
 // Register registers a service by @interfaceName and @protocol
-func (sm *serviceMap) Register(interfaceName, protocol string, rcvr RPCService) (string, error) {
+func (sm *serviceMap) Register(interfaceName, protocol, group, version string, rcvr RPCService) (string, error) {
 	if sm.serviceMap[protocol] == nil {
 		sm.serviceMap[protocol] = make(map[string]*Service)
 	}
@@ -203,8 +209,8 @@ func (sm *serviceMap) Register(interfaceName, protocol string, rcvr RPCService)
 		return "", perrors.New(s)
 	}
 
-	sname = rcvr.Reference()
-	if server := sm.GetService(protocol, sname); server != nil {
+	sname = ServiceKey(interfaceName, group, version)
+	if server := sm.GetService(protocol, interfaceName, group, version); server != nil {
 		return "", perrors.New("service already defined: " + sname)
 	}
 	s.name = sname
@@ -228,9 +234,9 @@ func (sm *serviceMap) Register(interfaceName, protocol string, rcvr RPCService)
 }
 
 // UnRegister cancels a service by @interfaceName, @protocol and @serviceId
-func (sm *serviceMap) UnRegister(interfaceName, protocol, serviceId string) error {
-	if protocol == "" || serviceId == "" {
-		return perrors.New("protocol or serviceName is nil")
+func (sm *serviceMap) UnRegister(interfaceName, protocol, serviceKey string) error {
+	if protocol == "" || serviceKey == "" {
+		return perrors.New("protocol or serviceKey is nil")
 	}
 
 	var (
@@ -248,9 +254,9 @@ func (sm *serviceMap) UnRegister(interfaceName, protocol, serviceId string) erro
 		if !ok {
 			return perrors.New("no services for " + protocol)
 		}
-		s, ok := svcs[serviceId]
+		s, ok := svcs[serviceKey]
 		if !ok {
-			return perrors.New("no service for " + serviceId)
+			return perrors.New("no service for " + serviceKey)
 		}
 		svrs, ok = sm.interfaceMap[interfaceName]
 		if !ok {
@@ -276,7 +282,7 @@ func (sm *serviceMap) UnRegister(interfaceName, protocol, serviceId string) erro
 			sm.interfaceMap[interfaceName] = append(sm.interfaceMap[interfaceName], svrs[i])
 		}
 	}
-	delete(svcs, serviceId)
+	delete(svcs, serviceKey)
 	if len(sm.serviceMap[protocol]) == 0 {
 		delete(sm.serviceMap, protocol)
 	}
diff --git a/common/rpc_service_test.go b/common/rpc_service_test.go
index 7c4eb421d7ed0e5e0306eb1a1a2ff5ac31c29b6d..e8bd3933da89b0a6c607f776eae1bb8603f8f467 100644
--- a/common/rpc_service_test.go
+++ b/common/rpc_service_test.go
@@ -27,6 +27,10 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+import (
+	"github.com/apache/dubbo-go/common/constant"
+)
+
 const (
 	referenceTestPath             = "com.test.Path"
 	referenceTestPathDistinct     = "com.test.Path1"
@@ -85,23 +89,23 @@ func TestServiceMapRegister(t *testing.T) {
 	// lowercase
 	s0 := &testService{}
 	// methods, err := ServiceMap.Register("testporotocol", s0)
-	_, err := ServiceMap.Register(testInterfaceName, "testporotocol", s0)
+	_, err := ServiceMap.Register(testInterfaceName, "testporotocol", "", "v0", s0)
 	assert.EqualError(t, err, "type testService is not exported")
 
 	// succ
 	s := &TestService{}
-	methods, err := ServiceMap.Register(testInterfaceName, "testporotocol", s)
+	methods, err := ServiceMap.Register(testInterfaceName, "testporotocol", "", "v1", s)
 	assert.NoError(t, err)
 	assert.Equal(t, "MethodOne,MethodThree,methodTwo", methods)
 
 	// repeat
-	_, err = ServiceMap.Register(testInterfaceName, "testporotocol", s)
-	assert.EqualError(t, err, "service already defined: com.test.Path")
+	_, err = ServiceMap.Register(testInterfaceName, "testporotocol", "", "v1", s)
+	assert.EqualError(t, err, "service already defined: testService:v1")
 
 	// no method
 	s1 := &TestService1{}
-	_, err = ServiceMap.Register(testInterfaceName, "testporotocol", s1)
-	assert.EqualError(t, err, "type com.test.Path1 has no exported methods of suitable type")
+	_, err = ServiceMap.Register(testInterfaceName, "testporotocol", "", "v2", s1)
+	assert.EqualError(t, err, "type testService:v2 has no exported methods of suitable type")
 
 	ServiceMap = &serviceMap{
 		serviceMap:   make(map[string]map[string]*Service),
@@ -111,35 +115,34 @@ func TestServiceMapRegister(t *testing.T) {
 
 func TestServiceMapUnRegister(t *testing.T) {
 	s := &TestService{}
-	_, err := ServiceMap.Register("TestService", testProtocol, s)
+	_, err := ServiceMap.Register("TestService", testProtocol, "", "v1", s)
 	assert.NoError(t, err)
-	assert.NotNil(t, ServiceMap.GetService(testProtocol, referenceTestPath))
+	assert.NotNil(t, ServiceMap.GetService(testProtocol, "TestService", "", "v1"))
 	assert.Equal(t, 1, len(ServiceMap.GetInterface("TestService")))
 
-	err = ServiceMap.UnRegister("", "", referenceTestPath)
-	assert.EqualError(t, err, "protocol or serviceName is nil")
+	err = ServiceMap.UnRegister("", "", ServiceKey("TestService", "", "v1"))
+	assert.EqualError(t, err, "protocol or serviceKey is nil")
 
-	err = ServiceMap.UnRegister("", "protocol", referenceTestPath)
+	err = ServiceMap.UnRegister("", "protocol", ServiceKey("TestService", "", "v1"))
 	assert.EqualError(t, err, "no services for protocol")
 
-	err = ServiceMap.UnRegister("", testProtocol, referenceTestPathDistinct)
-	assert.EqualError(t, err, "no service for com.test.Path1")
+	err = ServiceMap.UnRegister("", testProtocol, ServiceKey("TestService", "", "v0"))
+	assert.EqualError(t, err, "no service for TestService:v0")
 
-	// succ
-	err = ServiceMap.UnRegister("TestService", testProtocol, referenceTestPath)
+	// success
+	err = ServiceMap.UnRegister("TestService", testProtocol, ServiceKey("TestService", "", "v1"))
 	assert.NoError(t, err)
 }
 
 func TestMethodTypeSuiteContext(t *testing.T) {
 	mt := &MethodType{ctxType: reflect.TypeOf(context.TODO())}
-	ctx := context.WithValue(context.Background(), "key", "value")
+	ctx := context.Background()
+	key := constant.DubboCtxKey("key")
+	ctx = context.WithValue(ctx, key, "value")
 	assert.Equal(t, reflect.ValueOf(ctx), mt.SuiteContext(ctx))
-
-	assert.Equal(t, reflect.Zero(mt.ctxType), mt.SuiteContext(nil))
 }
 
 func TestSuiteMethod(t *testing.T) {
-
 	s := &TestService{}
 	method, ok := reflect.TypeOf(s).MethodByName("MethodOne")
 	assert.True(t, ok)
diff --git a/common/url.go b/common/url.go
index d8f096bb48991e0697297010813bcb880a30d148..80b85fcf42a924f4707c9ab31e2ec263c671e55a 100644
--- a/common/url.go
+++ b/common/url.go
@@ -21,7 +21,6 @@ import (
 	"bytes"
 	"encoding/base64"
 	"fmt"
-	cm "github.com/Workiva/go-datastructures/common"
 	"math"
 	"net"
 	"net/url"
@@ -31,6 +30,7 @@ import (
 )
 
 import (
+	cm "github.com/Workiva/go-datastructures/common"
 	gxset "github.com/dubbogo/gost/container/set"
 	"github.com/jinzhu/copier"
 	perrors "github.com/pkg/errors"
@@ -64,8 +64,14 @@ var (
 	DubboNodes = [...]string{"consumers", "configurators", "routers", "providers"}
 	// DubboRole Dubbo service role
 	DubboRole = [...]string{"consumer", "", "routers", "provider"}
+	// CompareURLEqualFunc compare two url is equal
+	compareURLEqualFunc CompareURLEqualFunc
 )
 
+func init() {
+	compareURLEqualFunc = defaultCompareURLEqual
+}
+
 // nolint
 type RoleType int
 
@@ -83,9 +89,7 @@ type baseUrl struct {
 	Location string // ip+port
 	Ip       string
 	Port     string
-	//url.Values is not safe map, add to avoid concurrent map read and map write error
-	paramsLock   sync.RWMutex
-	params       url.Values
+
 	PrimitiveURL string
 }
 
@@ -109,7 +113,11 @@ type URL struct {
 	noCopy noCopy
 
 	baseUrl
-	Path     string // like  /com.ikurento.dubbo.UserProvider3
+	//url.Values is not safe map, add to avoid concurrent map read and map write error
+	paramsLock sync.RWMutex
+	params     url.Values
+
+	Path     string // like  /com.ikurento.dubbo.UserProvider
 	Username string
 	Password string
 	Methods  []string
@@ -211,12 +219,12 @@ func WithToken(token string) Option {
 
 // NewURLWithOptions will create a new url with options
 func NewURLWithOptions(opts ...Option) *URL {
-	newUrl := &URL{}
+	newURL := &URL{}
 	for _, opt := range opts {
-		opt(newUrl)
+		opt(newURL)
 	}
-	newUrl.Location = newUrl.Ip + ":" + newUrl.Port
-	return newUrl
+	newURL.Location = newURL.Ip + ":" + newURL.Port
+	return newURL
 }
 
 // NewURL will create a new url
@@ -317,6 +325,8 @@ func isMatchCategory(category1 string, category2 string) bool {
 }
 
 func (c *URL) String() string {
+	c.paramsLock.Lock()
+	defer c.paramsLock.Unlock()
 	var buf strings.Builder
 	if len(c.Username) == 0 && len(c.Password) == 0 {
 		buf.WriteString(fmt.Sprintf("%s://%s:%s%s?", c.Protocol, c.Ip, c.Port, c.Path))
@@ -406,6 +416,9 @@ func (c *URL) Service() string {
 func (c *URL) AddParam(key string, value string) {
 	c.paramsLock.Lock()
 	defer c.paramsLock.Unlock()
+	if c.params == nil {
+		c.params = url.Values{}
+	}
 	c.params.Add(key, value)
 }
 
@@ -424,9 +437,29 @@ func (c *URL) AddParamAvoidNil(key string, value string) {
 func (c *URL) SetParam(key string, value string) {
 	c.paramsLock.Lock()
 	defer c.paramsLock.Unlock()
+	if c.params == nil {
+		c.params = url.Values{}
+	}
 	c.params.Set(key, value)
 }
 
+// DelParam will delete the given key from the url
+func (c *URL) DelParam(key string) {
+	c.paramsLock.Lock()
+	defer c.paramsLock.Unlock()
+	if c.params != nil {
+		c.params.Del(key)
+	}
+}
+
+// ReplaceParams will replace the URL.params
+// usually it should only be invoked when you want to modify an url, such as MergeURL
+func (c *URL) ReplaceParams(param url.Values) {
+	c.paramsLock.Lock()
+	defer c.paramsLock.Unlock()
+	c.params = param
+}
+
 // RangeParams will iterate the params
 func (c *URL) RangeParams(f func(key, value string) bool) {
 	c.paramsLock.RLock()
@@ -442,10 +475,15 @@ func (c *URL) RangeParams(f func(key, value string) bool) {
 func (c *URL) GetParam(s string, d string) string {
 	c.paramsLock.RLock()
 	defer c.paramsLock.RUnlock()
-	r := c.params.Get(s)
+
+	var r string
+	if len(c.params) > 0 {
+		r = c.params.Get(s)
+	}
 	if len(r) == 0 {
 		r = d
 	}
+
 	return r
 }
 
@@ -621,22 +659,26 @@ func (c *URL) ToMap() map[string]string {
 // You should notice that the value of b1 is v2, not v4.
 // due to URL is not thread-safe, so this method is not thread-safe
 func MergeUrl(serviceUrl *URL, referenceUrl *URL) *URL {
+	// After Clone, it is a new url that there is no thread safe issue.
 	mergedUrl := serviceUrl.Clone()
-
+	params := mergedUrl.GetParams()
 	// iterator the referenceUrl if serviceUrl not have the key ,merge in
-	referenceUrl.RangeParams(func(key, value string) bool {
+	// referenceUrl usually will not changed. so change RangeParams to GetParams to avoid the string value copy.
+	for key, value := range referenceUrl.GetParams() {
 		if v := mergedUrl.GetParam(key, ""); len(v) == 0 {
-			mergedUrl.SetParam(key, value)
+			if len(value) > 0 {
+				params[key] = value
+			}
 		}
-		return true
-	})
+	}
+
 	// loadBalance,cluster,retries strategy config
-	methodConfigMergeFcn := mergeNormalParam(mergedUrl, referenceUrl, []string{constant.LOADBALANCE_KEY, constant.CLUSTER_KEY, constant.RETRIES_KEY, constant.TIMEOUT_KEY})
+	methodConfigMergeFcn := mergeNormalParam(params, referenceUrl, []string{constant.LOADBALANCE_KEY, constant.CLUSTER_KEY, constant.RETRIES_KEY, constant.TIMEOUT_KEY})
 
 	// remote timestamp
 	if v := serviceUrl.GetParam(constant.TIMESTAMP_KEY, ""); len(v) > 0 {
-		mergedUrl.SetParam(constant.REMOTE_TIMESTAMP_KEY, v)
-		mergedUrl.SetParam(constant.TIMESTAMP_KEY, referenceUrl.GetParam(constant.TIMESTAMP_KEY, ""))
+		params[constant.REMOTE_TIMESTAMP_KEY] = []string{v}
+		params[constant.TIMESTAMP_KEY] = []string{referenceUrl.GetParam(constant.TIMESTAMP_KEY, "")}
 	}
 
 	// finally execute methodConfigMergeFcn
@@ -645,33 +687,41 @@ func MergeUrl(serviceUrl *URL, referenceUrl *URL) *URL {
 			fcn("methods." + method)
 		}
 	}
-
+	// In this way, we will raise some performance.
+	mergedUrl.ReplaceParams(params)
 	return mergedUrl
 }
 
 // Clone will copy the url
 func (c *URL) Clone() *URL {
-	newUrl := &URL{}
-	copier.Copy(newUrl, c)
-	newUrl.params = url.Values{}
+	newURL := &URL{}
+	if err := copier.Copy(newURL, c); err != nil {
+		// this is impossible
+		return newURL
+	}
+	newURL.params = url.Values{}
 	c.RangeParams(func(key, value string) bool {
-		newUrl.SetParam(key, value)
+		newURL.SetParam(key, value)
 		return true
 	})
-	return newUrl
+
+	return newURL
 }
 
 func (c *URL) CloneExceptParams(excludeParams *gxset.HashSet) *URL {
-	newUrl := &URL{}
-	copier.Copy(newUrl, c)
-	newUrl.params = url.Values{}
+	newURL := &URL{}
+	if err := copier.Copy(newURL, c); err != nil {
+		// this is impossible
+		return newURL
+	}
+	newURL.params = url.Values{}
 	c.RangeParams(func(key, value string) bool {
 		if !excludeParams.Contains(key) {
-			newUrl.SetParam(key, value)
+			newURL.SetParam(key, value)
 		}
 		return true
 	})
-	return newUrl
+	return newURL
 }
 
 func (c *URL) Compare(comp cm.Comparator) int {
@@ -711,6 +761,9 @@ func (c *URL) CloneWithParams(reserveParams []string) *URL {
 
 // IsEquals compares if two URLs equals with each other. Excludes are all parameter keys which should ignored.
 func IsEquals(left *URL, right *URL, excludes ...string) bool {
+	if (left == nil && right != nil) || (right == nil && left != nil) {
+		return false
+	}
 	if left.Ip != right.Ip || left.Port != right.Port {
 		return false
 	}
@@ -737,15 +790,15 @@ func IsEquals(left *URL, right *URL, excludes ...string) bool {
 	return true
 }
 
-func mergeNormalParam(mergedUrl *URL, referenceUrl *URL, paramKeys []string) []func(method string) {
+func mergeNormalParam(params url.Values, referenceUrl *URL, paramKeys []string) []func(method string) {
 	methodConfigMergeFcn := make([]func(method string), 0, len(paramKeys))
 	for _, paramKey := range paramKeys {
 		if v := referenceUrl.GetParam(paramKey, ""); len(v) > 0 {
-			mergedUrl.SetParam(paramKey, v)
+			params[paramKey] = []string{v}
 		}
 		methodConfigMergeFcn = append(methodConfigMergeFcn, func(method string) {
 			if v := referenceUrl.GetParam(method+"."+paramKey, ""); len(v) > 0 {
-				mergedUrl.SetParam(method+"."+paramKey, v)
+				params[method+"."+paramKey] = []string{v}
 			}
 		})
 	}
@@ -770,3 +823,17 @@ func (s URLSlice) Less(i, j int) bool {
 func (s URLSlice) Swap(i, j int) {
 	s[i], s[j] = s[j], s[i]
 }
+
+type CompareURLEqualFunc func(l *URL, r *URL, excludeParam ...string) bool
+
+func defaultCompareURLEqual(l *URL, r *URL, excludeParam ...string) bool {
+	return IsEquals(l, r, excludeParam...)
+}
+
+func SetCompareURLEqualFunc(f CompareURLEqualFunc) {
+	compareURLEqualFunc = f
+}
+
+func GetCompareURLEqualFunc() CompareURLEqualFunc {
+	return compareURLEqualFunc
+}
diff --git a/common/url_test.go b/common/url_test.go
index 05377c19c93eb3c13021966e4b2684d4910ddaab..c645f1a046777ddf298b54ae5cb19124dd7808c1 100644
--- a/common/url_test.go
+++ b/common/url_test.go
@@ -68,12 +68,17 @@ func TestURL(t *testing.T) {
 		"side=provider&timeout=3000&timestamp=1556509797245")
 	assert.NoError(t, err)
 
+	urlInst := URL{}
+	urlInst.noCopy.Lock()
+	urlInst.SetParam("hello", "world")
+	urlInst.noCopy.Unlock()
+
 	assert.Equal(t, "/com.ikurento.user.UserProvider", u.Path)
 	assert.Equal(t, "127.0.0.1:20000", u.Location)
 	assert.Equal(t, "dubbo", u.Protocol)
 	assert.Equal(t, loopbackAddress, u.Ip)
 	assert.Equal(t, "20000", u.Port)
-	assert.Equal(t, URL{}.Methods, u.Methods)
+	assert.Equal(t, urlInst.Methods, u.Methods)
 	assert.Equal(t, "", u.Username)
 	assert.Equal(t, "", u.Password)
 	assert.Equal(t, "anyhost=true&application=BDTService&category=providers&default.timeout=10000&dubbo=dubbo-"+
@@ -156,7 +161,10 @@ func TestURLEqual(t *testing.T) {
 func TestURLGetParam(t *testing.T) {
 	params := url.Values{}
 	params.Set("key", "value")
-	u := URL{baseUrl: baseUrl{params: params}}
+
+	u := URL{}
+	u.SetParams(params)
+
 	v := u.GetParam("key", "default")
 	assert.Equal(t, "value", v)
 
@@ -167,8 +175,11 @@ func TestURLGetParam(t *testing.T) {
 
 func TestURLGetParamInt(t *testing.T) {
 	params := url.Values{}
-	params.Set("key", "")
-	u := URL{baseUrl: baseUrl{params: params}}
+	params.Set("key", "value")
+
+	u := URL{}
+	u.SetParams(params)
+
 	v := u.GetParamInt("key", 1)
 	assert.Equal(t, int64(1), v)
 
@@ -180,7 +191,10 @@ func TestURLGetParamInt(t *testing.T) {
 func TestURLGetParamIntValue(t *testing.T) {
 	params := url.Values{}
 	params.Set("key", "0")
-	u := URL{baseUrl: baseUrl{params: params}}
+
+	u := URL{}
+	u.SetParams(params)
+
 	v := u.GetParamInt("key", 1)
 	assert.Equal(t, int64(0), v)
 
@@ -192,7 +206,10 @@ func TestURLGetParamIntValue(t *testing.T) {
 func TestURLGetParamBool(t *testing.T) {
 	params := url.Values{}
 	params.Set("force", "true")
-	u := URL{baseUrl: baseUrl{params: params}}
+
+	u := URL{}
+	u.SetParams(params)
+
 	v := u.GetParamBool("force", false)
 	assert.Equal(t, true, v)
 
@@ -205,7 +222,10 @@ func TestURLGetParamAndDecoded(t *testing.T) {
 	rule := "host = 2.2.2.2,1.1.1.1,3.3.3.3 & host !=1.1.1.1 => host = 1.2.3.4"
 	params := url.Values{}
 	params.Set("rule", base64.URLEncoding.EncodeToString([]byte(rule)))
-	u := URL{baseUrl: baseUrl{params: params}}
+
+	u := URL{}
+	u.SetParams(params)
+
 	v, _ := u.GetParamAndDecoded("rule")
 	assert.Equal(t, rule, v)
 }
@@ -242,7 +262,10 @@ func TestURLToMap(t *testing.T) {
 func TestURLGetMethodParamInt(t *testing.T) {
 	params := url.Values{}
 	params.Set("methods.GetValue.timeout", "3")
-	u := URL{baseUrl: baseUrl{params: params}}
+
+	u := URL{}
+	u.SetParams(params)
+
 	v := u.GetMethodParamInt("GetValue", "timeout", 1)
 	assert.Equal(t, int64(3), v)
 
@@ -254,7 +277,10 @@ func TestURLGetMethodParamInt(t *testing.T) {
 func TestURLGetMethodParam(t *testing.T) {
 	params := url.Values{}
 	params.Set("methods.GetValue.timeout", "3s")
-	u := URL{baseUrl: baseUrl{params: params}}
+
+	u := URL{}
+	u.SetParams(params)
+
 	v := u.GetMethodParam("GetValue", "timeout", "1s")
 	assert.Equal(t, "3s", v)
 
@@ -266,7 +292,10 @@ func TestURLGetMethodParam(t *testing.T) {
 func TestURLGetMethodParamBool(t *testing.T) {
 	params := url.Values{}
 	params.Set("methods.GetValue.async", "true")
-	u := URL{baseUrl: baseUrl{params: params}}
+
+	u := URL{}
+	u.SetParams(params)
+
 	v := u.GetMethodParamBool("GetValue", "async", false)
 	assert.Equal(t, true, v)
 
@@ -307,6 +336,16 @@ func TestURLSetParams(t *testing.T) {
 	assert.Equal(t, "2.6.0", u1.GetParam("version", ""))
 }
 
+func TestURLReplaceParams(t *testing.T) {
+	u1, err := NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider?interface=com.ikurento.user.UserProvider&group=&version=2.6.0&configVersion=1.0")
+	assert.NoError(t, err)
+	params := url.Values{}
+	params.Set("key", "3")
+	u1.ReplaceParams(params)
+	assert.Equal(t, "3", u1.GetParam("key", ""))
+	assert.Equal(t, "", u1.GetParam("version", ""))
+}
+
 func TestClone(t *testing.T) {
 	u1, err := NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider?interface=com.ikurento.user.UserProvider&group=&version=2.6.0&configVersion=1.0")
 	assert.NoError(t, err)
@@ -329,5 +368,56 @@ func TestColonSeparatedKey(t *testing.T) {
 	assert.Equal(t, u1.ColonSeparatedKey(), u1.GetParam(constant.INTERFACE_KEY, "")+":version1:group1")
 	u1.SetParam(constant.VERSION_KEY, "")
 	assert.Equal(t, u1.ColonSeparatedKey(), u1.GetParam(constant.INTERFACE_KEY, "")+"::group1")
+}
+
+func TestCompareURLEqualFunc(t *testing.T) {
+	// test Default
+	url1, _ := NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider?anyhost=true&" +
+		"application=BDTService&category=providers&default.timeout=10000&dubbo=dubbo-provider-golang-1.0.0&" +
+		"environment=dev&interface=com.ikurento.user.UserProvider&ip=192.168.56.1&methods=GetUser%2C&" +
+		"module=dubbogo+user-info+server&org=ikurento.com&owner=ZX&pid=1447&revision=0.0.1&" +
+		"side=provider&timeout=3000&timestamp=1556509797245")
+	url2, _ := NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider?anyhost=true&" +
+		"application=BDTService&category=providers&default.timeout=10000&dubbo=dubbo-provider-golang-1.0.0&" +
+		"environment=dev&interface=com.ikurento.user.UserProvider&ip=192.168.56.1&methods=GetUser%2C&" +
+		"module=dubbogo+user-info+server&org=ikurento.com&owner=ZX&pid=1447&revision=0.0.1&" +
+		"side=provider&timeout=3000&timestamp=155650979798")
+	assert.False(t, GetCompareURLEqualFunc()(url1, url2))
+	assert.True(t, GetCompareURLEqualFunc()(url1, url2, constant.TIMESTAMP_KEY, constant.REMOTE_TIMESTAMP_KEY))
+
+	// test custom
+	url1, _ = NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider?anyhost=true&" +
+		"application=BDTService&category=providers&default.timeout=10000&dubbo=dubbo-provider-golang-1.0.0&" +
+		"environment=dev&interface=com.ikurento.user.UserProvider&ip=192.168.56.1&methods=GetUser%2C&" +
+		"module=dubbogo+user-info+server&org=ikurento.com&owner=ZX&pid=1447&revision=0.0.1&" +
+		"side=provider&timeout=3000&timestamp=1556509797245")
+	url2, _ = NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider?anyhost=true&" +
+		"application=BDTService&category=providers&default.timeout=10000&dubbo=dubbo-provider-golang-1.0.0&" +
+		"environment=dev&interface=com.ikurento.user.UserProvider&ip=192.168.56.1&methods=GetUser%2C&" +
+		"module=dubbogo+user-info+server&org=ikurento.com&owner=ZX&pid=1447&revision=0.0.1&" +
+		"side=provider&timeout=3000&timestamp=155650979798")
+	assert.True(t, GetCompareURLEqualFunc()(url1, url2, constant.TIMESTAMP_KEY, constant.REMOTE_TIMESTAMP_KEY))
+	SetCompareURLEqualFunc(CustomCompareURLEqual)
+	assert.False(t, GetCompareURLEqualFunc()(url1, url2))
+	assert.False(t, GetCompareURLEqualFunc()(url1, url2, constant.TIMESTAMP_KEY, constant.REMOTE_TIMESTAMP_KEY))
+
+	url1, _ = NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider?anyhost=true&" +
+		"application=BDTService&category=providers&default.timeout=10000&dubbo=dubbo-provider-golang-1.0.0&" +
+		"environment=dev&interface=com.ikurento.user.UserProvider&ip=192.168.56.1&methods=GetUser%2C&" +
+		"module=dubbogo+user-info+server&org=ikurento.com&owner=ZX&pid=1447&revision=0.0.1&" +
+		"side=provider&timeout=3000")
+	url2, _ = NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider?anyhost=true&" +
+		"application=BDTService&category=providers&default.timeout=10000&dubbo=dubbo-provider-golang-1.0.0&" +
+		"environment=dev&interface=com.ikurento.user.UserProvider&ip=192.168.56.1&methods=GetUser%2C&" +
+		"module=dubbogo+user-info+server&org=ikurento.com&owner=ZX&pid=1447&revision=0.0.1&" +
+		"side=provider&timeout=3000")
+	assert.True(t, GetCompareURLEqualFunc()(url1, url2))
+	assert.True(t, GetCompareURLEqualFunc()(url1, url2, constant.TIMESTAMP_KEY, constant.REMOTE_TIMESTAMP_KEY))
+	SetCompareURLEqualFunc(CustomCompareURLEqual)
+	assert.True(t, GetCompareURLEqualFunc()(url1, url2))
+	assert.True(t, GetCompareURLEqualFunc()(url1, url2, constant.TIMESTAMP_KEY, constant.REMOTE_TIMESTAMP_KEY))
+}
 
+func CustomCompareURLEqual(l *URL, r *URL, execludeParam ...string) bool {
+	return l.PrimitiveURL == r.PrimitiveURL
 }
diff --git a/common/yaml/yaml_test.go b/common/yaml/yaml_test.go
index 5a271a25823f576cb9cdb10c657520bbf5666017..19f4fe148aace5baf4790f329aa228506c8b5f70 100644
--- a/common/yaml/yaml_test.go
+++ b/common/yaml/yaml_test.go
@@ -66,5 +66,5 @@ type Config struct {
 }
 
 type ChildConfig struct {
-	StrTest string `default:"strTest" default:"default" yaml:"strTest"  json:"strTest,omitempty"`
+	StrTest string `default:"default" yaml:"strTest"  json:"strTest,omitempty"`
 }
diff --git a/config/application_config.go b/config/application_config.go
index ef99664fa298c28365ed7acc54d0c18a88c9b5c2..6fe6c5d049f8ce95a56fcfd62eb1cffc03bf3c43 100644
--- a/config/application_config.go
+++ b/config/application_config.go
@@ -48,8 +48,5 @@ func (c *ApplicationConfig) UnmarshalYAML(unmarshal func(interface{}) error) err
 		return err
 	}
 	type plain ApplicationConfig
-	if err := unmarshal((*plain)(c)); err != nil {
-		return err
-	}
-	return nil
+	return unmarshal((*plain)(c))
 }
diff --git a/config/base_config.go b/config/base_config.go
index 336bb03c7b61ad8aad8465bb3c7754abeb9e9f5a..7cb25a50793b94f2ec2fd8c60e6b93a50b8e77ab 100644
--- a/config/base_config.go
+++ b/config/base_config.go
@@ -33,10 +33,6 @@ import (
 	"github.com/apache/dubbo-go/common/logger"
 )
 
-type multiConfiger interface {
-	Prefix() string
-}
-
 // BaseConfig is the common configuration for provider and consumer
 type BaseConfig struct {
 	ConfigCenterConfig *ConfigCenterConfig `yaml:"config_center" json:"config_center,omitempty"`
@@ -49,7 +45,7 @@ type BaseConfig struct {
 	// application config
 	ApplicationConfig *ApplicationConfig `yaml:"application" json:"application,omitempty" property:"application"`
 
-	prefix              string
+	//prefix              string
 	fatherConfig        interface{}
 	EventDispatcherType string        `default:"direct" yaml:"event_dispatcher_type" json:"event_dispatcher_type,omitempty"`
 	MetricConfig        *MetricConfig `yaml:"metrics" json:"metrics,omitempty"`
diff --git a/config/base_config_test.go b/config/base_config_test.go
index 849a9c4586c0c8cd2d74e3dd1011aaab466f0e93..566b49bea7df8a14543347a196d136a8c059a0b5 100644
--- a/config/base_config_test.go
+++ b/config/base_config_test.go
@@ -17,7 +17,6 @@
 package config
 
 import (
-	"fmt"
 	"reflect"
 	"testing"
 )
@@ -108,6 +107,7 @@ var baseMockRef = map[string]*ReferenceConfig{
 
 func TestRefresh(t *testing.T) {
 	c := &BaseConfig{}
+	c.fileStream = nil
 	mockMap := getMockMap()
 	mockMap["dubbo.shutdown.timeout"] = "12s"
 
@@ -285,8 +285,7 @@ func TestInitializeStruct(t *testing.T) {
 	tp := reflect.TypeOf(ConsumerConfig{})
 	v := reflect.New(tp)
 	initializeStruct(tp, v.Elem())
-	fmt.Println(reflect.ValueOf(testConsumerConfig).Elem().Type().String())
-	fmt.Println(v.Elem().Type().String())
+	t.Logf("testConsumerConfig type:%s", reflect.ValueOf(testConsumerConfig).Elem().Type().String())
 	reflect.ValueOf(testConsumerConfig).Elem().Set(v.Elem())
 
 	assert.Condition(t, func() (success bool) {
diff --git a/config/config_api.go b/config/config_api.go
new file mode 100644
index 0000000000000000000000000000000000000000..eac5a79425e349d4d3f39debbd997ebb36bde3d5
--- /dev/null
+++ b/config/config_api.go
@@ -0,0 +1,556 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package config
+
+import (
+	"context"
+	"time"
+)
+
+//////////////////////////////////// default registry config
+const (
+	// defaultZKAddr is the default registry address of zookeeper
+	defaultZKAddr = "127.0.0.1:2181"
+
+	// defaultConsulAddr is the default registry address of consul
+	defaultConsulAddr = "127.0.0.1:8500"
+
+	// defaultNacosAddr is the default registry address of nacos
+	defaultNacosAddr = "127.0.0.1:8848"
+
+	// defaultRegistryTimeout is the default registry timeout
+	defaultRegistryTimeout = "3s"
+)
+
+// NewDefaultRegistryConfig New default registry config
+// the input @protocol can only be:
+// "zookeeper" with default addr "127.0.0.1:2181"
+// "consul" with default addr "127.0.0.1:8500"
+// "nacos" with default addr "127.0.0.1:8848"
+func NewDefaultRegistryConfig(protocol string) *RegistryConfig {
+	switch protocol {
+	case "zookeeper":
+		return &RegistryConfig{
+			Protocol:   protocol,
+			Address:    defaultZKAddr,
+			TimeoutStr: defaultRegistryTimeout,
+		}
+	case "consul":
+		return &RegistryConfig{
+			Protocol:   protocol,
+			Address:    defaultConsulAddr,
+			TimeoutStr: defaultRegistryTimeout,
+		}
+	case "nacos":
+		return &RegistryConfig{
+			Protocol:   protocol,
+			Address:    defaultNacosAddr,
+			TimeoutStr: defaultRegistryTimeout,
+		}
+	default:
+		return &RegistryConfig{
+			Protocol: protocol,
+		}
+	}
+}
+
+///////////////////////////////////// registry config api
+type RegistryConfigOpt func(config *RegistryConfig) *RegistryConfig
+
+// NewRegistryConfig creates New RegistryConfig with @opts
+func NewRegistryConfig(opts ...RegistryConfigOpt) *RegistryConfig {
+	newRegistryConfig := NewDefaultRegistryConfig("")
+	for _, v := range opts {
+		newRegistryConfig = v(newRegistryConfig)
+	}
+	return newRegistryConfig
+}
+
+// WithRegistryProtocol returns RegistryConfigOpt with given @regProtocol name
+func WithRegistryProtocol(regProtocol string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Protocol = regProtocol
+		return config
+	}
+}
+
+// WithRegistryAddress returns RegistryConfigOpt with given @addr registry address
+func WithRegistryAddress(addr string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Address = addr
+		return config
+	}
+}
+
+// WithRegistryTimeOut returns RegistryConfigOpt with given @timeout registry config
+func WithRegistryTimeOut(timeout string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.TimeoutStr = timeout
+		return config
+	}
+}
+
+// WithRegistryGroup returns RegistryConfigOpt with given @group registry group
+func WithRegistryGroup(group string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Group = group
+		return config
+	}
+}
+
+// WithRegistryTTL returns RegistryConfigOpt with given @ttl registry ttl
+func WithRegistryTTL(ttl string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.TTL = ttl
+		return config
+	}
+}
+
+// WithRegistryUserName returns RegistryConfigOpt with given @userName registry userName
+func WithRegistryUserName(userName string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Username = userName
+		return config
+	}
+}
+
+// WithRegistryPassword returns RegistryConfigOpt with given @psw registry password
+func WithRegistryPassword(psw string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Password = psw
+		return config
+	}
+}
+
+// WithRegistrySimplified returns RegistryConfigOpt with given @simplified registry simplified flag
+func WithRegistrySimplified(simplified bool) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Simplified = simplified
+		return config
+	}
+}
+
+// WithRegistryPreferred returns RegistryConfig with given @preferred registry preferred flag
+func WithRegistryPreferred(preferred bool) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Preferred = preferred
+		return config
+	}
+}
+
+// WithRegistryWeight returns RegistryConfigOpt with given @weight registry weight flag
+func WithRegistryWeight(weight int64) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Weight = weight
+		return config
+	}
+}
+
+// WithRegistryParams returns RegistryConfigOpt with given registry @params
+func WithRegistryParams(params map[string]string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Params = params
+		return config
+	}
+}
+
+///////////////////////////////////// consumer config api
+// ConsumerConfigOpt is the options to init ConsumerConfig
+type ConsumerConfigOpt func(config *ConsumerConfig) *ConsumerConfig
+
+// NewDefaultConsumerConfig returns default ConsumerConfig
+// with connection timeout = 3s, request timeout = 3s
+func NewDefaultConsumerConfig() *ConsumerConfig {
+	check := true
+	newConsumerConfig := &ConsumerConfig{
+		BaseConfig:     BaseConfig{},
+		Registries:     make(map[string]*RegistryConfig, 8),
+		References:     make(map[string]*ReferenceConfig, 8),
+		ConnectTimeout: 3 * time.Second,
+		RequestTimeout: 3 * time.Second,
+		Check:          &check,
+	}
+	return newConsumerConfig
+}
+
+// NewConsumerConfig returns ConsumerConfig with @opts
+func NewConsumerConfig(opts ...ConsumerConfigOpt) *ConsumerConfig {
+	newConfig := NewDefaultConsumerConfig()
+	for _, v := range opts {
+		v(newConfig)
+	}
+	return newConfig
+}
+
+// WithConsumerAppConfig returns ConsumerConfigOpt with given @appConfig
+func WithConsumerAppConfig(appConfig *ApplicationConfig) ConsumerConfigOpt {
+	return func(config *ConsumerConfig) *ConsumerConfig {
+		config.ApplicationConfig = appConfig
+		return config
+	}
+}
+
+// WithConsumerRegistryConfig returns ConsumerConfigOpt with given @registryKey and @regConfig
+func WithConsumerRegistryConfig(registryKey string, regConfig *RegistryConfig) ConsumerConfigOpt {
+	return func(config *ConsumerConfig) *ConsumerConfig {
+		config.Registries[registryKey] = regConfig
+		return config
+	}
+}
+
+// WithConsumerReferenceConfig returns ConsumerConfigOpt with
+func WithConsumerReferenceConfig(referenceKey string, refConfig *ReferenceConfig) ConsumerConfigOpt {
+	return func(config *ConsumerConfig) *ConsumerConfig {
+		config.References[referenceKey] = refConfig
+		return config
+	}
+}
+
+// WithConsumerConnTimeout returns ConsumerConfigOpt with given consumer conn @timeout
+func WithConsumerConnTimeout(timeout time.Duration) ConsumerConfigOpt {
+	return func(config *ConsumerConfig) *ConsumerConfig {
+		config.ConnectTimeout = timeout
+		return config
+	}
+}
+
+// WithConsumerRequestTimeout returns ConsumerConfigOpt with given consumer request @timeout
+func WithConsumerRequestTimeout(timeout time.Duration) ConsumerConfigOpt {
+	return func(config *ConsumerConfig) *ConsumerConfig {
+		config.RequestTimeout = timeout
+		return config
+	}
+}
+
+// WithConsumerConfigCenterConfig returns ConsumerConfigOpt with given @configCenterConfig
+func WithConsumerConfigCenterConfig(configCenterConfig *ConfigCenterConfig) ConsumerConfigOpt {
+	return func(config *ConsumerConfig) *ConsumerConfig {
+		config.ConfigCenterConfig = configCenterConfig
+		return config
+	}
+}
+
+// WithConsumerConfigCheck returns ConsumerConfigOpt with given @check flag
+func WithConsumerConfigCheck(check bool) ConsumerConfigOpt {
+	return func(config *ConsumerConfig) *ConsumerConfig {
+		*config.Check = check
+		return config
+	}
+}
+
+//////////////////////////////////// reference config api
+// ReferenceConfigOpt is consumer's reference config
+type ReferenceConfigOpt func(config *ReferenceConfig) *ReferenceConfig
+
+// NewDefaultReferenceConfig returns empty ReferenceConfig
+func NewDefaultReferenceConfig() *ReferenceConfig {
+	newReferenceConfig := NewReferenceConfig("", context.Background())
+	newReferenceConfig.Methods = make([]*MethodConfig, 0, 8)
+	newReferenceConfig.Params = make(map[string]string, 8)
+	return newReferenceConfig
+}
+
+// NewReferenceConfigByAPI returns ReferenceConfig with given @opts
+func NewReferenceConfigByAPI(opts ...ReferenceConfigOpt) *ReferenceConfig {
+	newreferenceConfig := NewDefaultReferenceConfig()
+	for _, v := range opts {
+		v(newreferenceConfig)
+	}
+	return newreferenceConfig
+}
+
+// WithReferenceRegistry returns ReferenceConfigOpt with given registryKey: @registry
+func WithReferenceRegistry(registry string) ReferenceConfigOpt {
+	return func(config *ReferenceConfig) *ReferenceConfig {
+		config.Registry = registry
+		return config
+	}
+}
+
+// WithReferenceProtocol returns ReferenceConfigOpt with given protocolKey: @protocol
+func WithReferenceProtocol(protocol string) ReferenceConfigOpt {
+	return func(config *ReferenceConfig) *ReferenceConfig {
+		config.Protocol = protocol
+		return config
+	}
+}
+
+// WithReferenceInterface returns ReferenceConfigOpt with given @interfaceName
+func WithReferenceInterface(interfaceName string) ReferenceConfigOpt {
+	return func(config *ReferenceConfig) *ReferenceConfig {
+		config.InterfaceName = interfaceName
+		return config
+	}
+}
+
+// WithReferenceCluster returns ReferenceConfigOpt with given cluster name: @cluster
+func WithReferenceCluster(cluster string) ReferenceConfigOpt {
+	return func(config *ReferenceConfig) *ReferenceConfig {
+		config.Cluster = cluster
+		return config
+	}
+}
+
+// WithReferenceMethod returns ReferenceConfigOpt with given @method, @retries, and load balance: @lb
+func WithReferenceMethod(methodName, retries, lb string) ReferenceConfigOpt {
+	return func(config *ReferenceConfig) *ReferenceConfig {
+		config.Methods = append(config.Methods, &MethodConfig{
+			Name:        methodName,
+			Retries:     retries,
+			LoadBalance: lb,
+		})
+		return config
+	}
+}
+
+///////////////////////////////////// provider config api
+// ProviderConfigOpt is the
+type ProviderConfigOpt func(config *ProviderConfig) *ProviderConfig
+
+// NewDefaultProviderConfig returns ProviderConfig with default ApplicationConfig
+func NewDefaultProviderConfig() *ProviderConfig {
+	newConsumerConfig := &ProviderConfig{
+		BaseConfig: BaseConfig{
+			ApplicationConfig: &ApplicationConfig{
+				Name:         "dubbo",
+				Module:       "module",
+				Organization: "dubbo_org",
+				Owner:        "dubbo",
+			},
+		},
+		Services:   make(map[string]*ServiceConfig),
+		Registries: make(map[string]*RegistryConfig, 8),
+		Protocols:  make(map[string]*ProtocolConfig, 8),
+	}
+	return newConsumerConfig
+}
+
+// NewProviderConfig returns ProviderConfig with given @opts
+func NewProviderConfig(opts ...ProviderConfigOpt) *ProviderConfig {
+	newConfig := NewDefaultProviderConfig()
+	for _, v := range opts {
+		v(newConfig)
+	}
+	return newConfig
+}
+
+// WithPrividerRegistryConfig returns ProviderConfigOpt with given registry config: @regConfig
+func WithPrividerRegistryConfig(regConfig *RegistryConfig) ProviderConfigOpt {
+	return func(config *ProviderConfig) *ProviderConfig {
+		config.Registries[regConfig.Protocol] = regConfig
+		return config
+	}
+}
+
+// WithProviderAppConfig returns ProviderConfigOpt with given @appConfig
+func WithProviderAppConfig(appConfig *ApplicationConfig) ProviderConfigOpt {
+	return func(config *ProviderConfig) *ProviderConfig {
+		config.ApplicationConfig = appConfig
+		return config
+	}
+}
+
+// WithProviderServices returns ProviderConfig with given serviceNameKey @serviceName and @serviceConfig
+func WithProviderServices(serviceName string, serviceConfig *ServiceConfig) ProviderConfigOpt {
+	return func(config *ProviderConfig) *ProviderConfig {
+		config.Services[serviceName] = serviceConfig
+		return config
+	}
+}
+
+// WithProviderProtocol returns ProviderConfigOpt with given @protocolKey, protocolName @protocol and @port
+func WithProviderProtocol(protocolKey, protocol, port string) ProviderConfigOpt {
+	return func(config *ProviderConfig) *ProviderConfig {
+		config.Protocols[protocolKey] = &ProtocolConfig{
+			Name: protocol,
+			Port: port,
+		}
+		return config
+	}
+}
+
+// WithProviderRegistry returns ProviderConfigOpt with given @registryKey and registry @registryConfig
+func WithProviderRegistry(registryKey string, registryConfig *RegistryConfig) ProviderConfigOpt {
+	return func(config *ProviderConfig) *ProviderConfig {
+		config.Registries[registryKey] = registryConfig
+		return config
+	}
+}
+
+/////////////////////////////////////// service config api
+// ServiceConfigOpt is the option to init ServiceConfig
+type ServiceConfigOpt func(config *ServiceConfig) *ServiceConfig
+
+// NewDefaultServiceConfig returns default ServiceConfig
+func NewDefaultServiceConfig() *ServiceConfig {
+	newServiceConfig := NewServiceConfig("", context.Background())
+	newServiceConfig.Params = make(map[string]string)
+	newServiceConfig.Methods = make([]*MethodConfig, 0, 8)
+	return newServiceConfig
+}
+
+// NewServiceConfigByAPI is named as api, because there is NewServiceConfig func already declared
+// NewServiceConfigByAPI returns ServiceConfig with given @opts
+func NewServiceConfigByAPI(opts ...ServiceConfigOpt) *ServiceConfig {
+	defaultServiceConfig := NewDefaultServiceConfig()
+	for _, v := range opts {
+		v(defaultServiceConfig)
+	}
+	return defaultServiceConfig
+}
+
+// WithServiceRegistry returns ServiceConfigOpt with given registryKey @registry
+func WithServiceRegistry(registry string) ServiceConfigOpt {
+	return func(config *ServiceConfig) *ServiceConfig {
+		config.Registry = registry
+		return config
+	}
+}
+
+// WithServiceProtocol returns ServiceConfigOpt with given protocolKey @protocol
+func WithServiceProtocol(protocol string) ServiceConfigOpt {
+	return func(config *ServiceConfig) *ServiceConfig {
+		config.Protocol = protocol
+		return config
+	}
+}
+
+// WithServiceInterface returns ServiceConfigOpt with given @interfaceName
+func WithServiceInterface(interfaceName string) ServiceConfigOpt {
+	return func(config *ServiceConfig) *ServiceConfig {
+		config.InterfaceName = interfaceName
+		return config
+	}
+}
+
+// WithServiceLoadBalance returns ServiceConfigOpt with given load balance @lb
+func WithServiceLoadBalance(lb string) ServiceConfigOpt {
+	return func(config *ServiceConfig) *ServiceConfig {
+		config.Loadbalance = lb
+		return config
+	}
+}
+
+// WithServiceWarmUpTime returns ServiceConfigOpt with given @warmUp time
+func WithServiceWarmUpTime(warmUp string) ServiceConfigOpt {
+	return func(config *ServiceConfig) *ServiceConfig {
+		config.Warmup = warmUp
+		return config
+	}
+}
+
+// WithServiceCluster returns ServiceConfigOpt with given cluster name @cluster
+func WithServiceCluster(cluster string) ServiceConfigOpt {
+	return func(config *ServiceConfig) *ServiceConfig {
+		config.Cluster = cluster
+		return config
+	}
+}
+
+// WithServiceMethod returns ServiceConfigOpt with given @name, @retries and load balance @lb
+func WithServiceMethod(name, retries, lb string) ServiceConfigOpt {
+	return func(config *ServiceConfig) *ServiceConfig {
+		config.Methods = append(config.Methods, &MethodConfig{
+			Name:        name,
+			Retries:     retries,
+			LoadBalance: lb,
+		})
+		return config
+	}
+}
+
+///////////////////////////////////////// Application config api
+// ApplicationConfigOpt is option to init ApplicationConfig
+type ApplicationConfigOpt func(config *ApplicationConfig) *ApplicationConfig
+
+// NewDefaultApplicationConfig returns ApplicationConfig with default
+// name: dubbo.io
+// module: sample
+// organization: dubbo.io
+// owner: dubbogo
+// version: 0.0.1
+// environment dev
+func NewDefaultApplicationConfig() *ApplicationConfig {
+	newAppConfig := &ApplicationConfig{
+		Name:         "dubbo.io",
+		Module:       "sample",
+		Organization: "dubbo.io",
+		Owner:        "dubbogo",
+		Version:      "0.0.1",
+		Environment:  "dev",
+	}
+	return newAppConfig
+}
+
+// NewApplicationConfig is named as api, because there is NewServiceConfig func already declared
+// NewApplicationConfig returns ApplicationConfig wigh default application config
+func NewApplicationConfig(opts ...ApplicationConfigOpt) *ApplicationConfig {
+	defaultServiceConfig := NewDefaultApplicationConfig()
+	for _, v := range opts {
+		v(defaultServiceConfig)
+	}
+	return defaultServiceConfig
+}
+
+// WithAppName returns ApplicationConfigOpt with given @name
+func WithAppName(name string) ApplicationConfigOpt {
+	return func(config *ApplicationConfig) *ApplicationConfig {
+		config.Name = name
+		return config
+	}
+}
+
+// WithAppModule returns ApplicationConfigOpt with given @module
+func WithAppModule(module string) ApplicationConfigOpt {
+	return func(config *ApplicationConfig) *ApplicationConfig {
+		config.Module = module
+		return config
+	}
+}
+
+// WithAppOrganization returns ApplicationConfigOpt wight given organization @org
+func WithAppOrganization(org string) ApplicationConfigOpt {
+	return func(config *ApplicationConfig) *ApplicationConfig {
+		config.Organization = org
+		return config
+	}
+}
+
+// WithAppOwner returns ApplicationConfigOpt with given @owner
+func WithAppOwner(owner string) ApplicationConfigOpt {
+	return func(config *ApplicationConfig) *ApplicationConfig {
+		config.Owner = owner
+		return config
+	}
+}
+
+// WithAppVersion returns ApplicationConfigOpt with given version @version
+func WithAppVersion(version string) ApplicationConfigOpt {
+	return func(config *ApplicationConfig) *ApplicationConfig {
+		config.Version = version
+		return config
+	}
+}
+
+// WithAppEnvironment returns ApplicationConfigOpt wigh given environment @env
+func WithAppEnvironment(env string) ApplicationConfigOpt {
+	return func(config *ApplicationConfig) *ApplicationConfig {
+		config.Environment = env
+		return config
+	}
+}
diff --git a/config/config_api_test.go b/config/config_api_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..fd8d5613f49745aebf141ff28a03f3bdb72419bb
--- /dev/null
+++ b/config/config_api_test.go
@@ -0,0 +1,178 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package config
+
+import (
+	"strconv"
+	"testing"
+	"time"
+)
+
+import (
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewDefaultServiceConfig(t *testing.T) {
+	serviceConfig := NewServiceConfigByAPI(
+		WithServiceCluster("test-cluster"),
+		WithServiceInterface("test-interface"),
+		WithServiceLoadBalance("test-loadbalance"),
+		WithServiceMethod("test-method1", "test-retries1", "test-lb1"),
+		WithServiceMethod("test-method2", "test-retries2", "test-lb2"),
+		WithServiceMethod("test-method3", "test-retries3", "test-lb3"),
+		WithServiceProtocol("test-protocol"),
+		WithServiceRegistry("test-registry"),
+		WithServiceWarmUpTime("test-warmup"),
+	)
+	assert.Equal(t, serviceConfig.Cluster, "test-cluster")
+	assert.Equal(t, serviceConfig.InterfaceName, "test-interface")
+	assert.Equal(t, serviceConfig.Loadbalance, "test-loadbalance")
+	for i, v := range serviceConfig.Methods {
+		backFix := strconv.Itoa(i + 1)
+		assert.Equal(t, v.Name, "test-method"+backFix)
+		assert.Equal(t, v.Retries, "test-retries"+backFix)
+		assert.Equal(t, v.LoadBalance, "test-lb"+backFix)
+	}
+	assert.Equal(t, serviceConfig.Protocol, "test-protocol")
+	assert.Equal(t, serviceConfig.Registry, "test-registry")
+	assert.Equal(t, serviceConfig.Warmup, "test-warmup")
+}
+
+func TestNewReferenceConfigByAPI(t *testing.T) {
+	refConfig := NewReferenceConfigByAPI(
+		WithReferenceCluster("test-cluster"),
+		WithReferenceInterface("test-interface"),
+		WithReferenceMethod("test-method1", "test-retries1", "test-lb1"),
+		WithReferenceMethod("test-method2", "test-retries2", "test-lb2"),
+		WithReferenceMethod("test-method3", "test-retries3", "test-lb3"),
+		WithReferenceProtocol("test-protocol"),
+		WithReferenceRegistry("test-registry"),
+	)
+	assert.Equal(t, refConfig.Cluster, "test-cluster")
+	assert.Equal(t, refConfig.InterfaceName, "test-interface")
+	for i, v := range refConfig.Methods {
+		backFix := strconv.Itoa(i + 1)
+		assert.Equal(t, v.Name, "test-method"+backFix)
+		assert.Equal(t, v.Retries, "test-retries"+backFix)
+		assert.Equal(t, v.LoadBalance, "test-lb"+backFix)
+	}
+	assert.Equal(t, refConfig.Protocol, "test-protocol")
+	assert.Equal(t, refConfig.Registry, "test-registry")
+}
+
+func TestNewRegistryConfig(t *testing.T) {
+	regConfig := NewRegistryConfig(
+		WithRegistryTimeOut("test-timeout"),
+		WithRegistryProtocol("test-protocol"),
+		WithRegistryGroup("test-group"),
+		WithRegistryAddress("test-address"),
+		WithRegistrySimplified(true),
+		WithRegistryUserName("test-username"),
+		WithRegistryPassword("test-password"),
+	)
+	assert.Equal(t, regConfig.TimeoutStr, "test-timeout")
+	assert.Equal(t, regConfig.Protocol, "test-protocol")
+	assert.Equal(t, regConfig.Group, "test-group")
+	assert.Equal(t, regConfig.Address, "test-address")
+	assert.Equal(t, regConfig.Simplified, true)
+	assert.Equal(t, regConfig.Username, "test-username")
+	assert.Equal(t, regConfig.Password, "test-password")
+}
+
+func TestNewConsumerConfig(t *testing.T) {
+	referConfig := NewReferenceConfigByAPI(
+		WithReferenceCluster("test-cluster"),
+		WithReferenceInterface("test-interface"),
+		WithReferenceMethod("test-method1", "test-retries1", "test-lb1"),
+		WithReferenceMethod("test-method2", "test-retries2", "test-lb2"),
+		WithReferenceMethod("test-method3", "test-retries3", "test-lb3"),
+		WithReferenceProtocol("test-protocol"),
+		WithReferenceRegistry("test-registry"),
+	)
+	defaultZKRegistry := NewDefaultRegistryConfig("zookeeper")
+	assert.Equal(t, defaultZKRegistry.Address, defaultZKAddr)
+	assert.Equal(t, defaultZKRegistry.Protocol, "zookeeper")
+	assert.Equal(t, defaultZKRegistry.TimeoutStr, defaultRegistryTimeout)
+
+	testConsumerConfig := NewConsumerConfig(
+		WithConsumerConfigCheck(true),
+		WithConsumerConnTimeout(time.Minute),
+		WithConsumerRequestTimeout(time.Hour),
+		WithConsumerReferenceConfig("UserProvider", referConfig),
+		WithConsumerRegistryConfig("demoZK", defaultZKRegistry),
+	)
+
+	assert.Equal(t, *testConsumerConfig.Check, true)
+	assert.Equal(t, testConsumerConfig.ConnectTimeout, time.Minute)
+	assert.Equal(t, testConsumerConfig.RequestTimeout, time.Hour)
+	assert.Equal(t, testConsumerConfig.Registries["demoZK"], defaultZKRegistry)
+	assert.Equal(t, testConsumerConfig.References["UserProvider"], referConfig)
+}
+
+func TestNewProviderConfig(t *testing.T) {
+	serviceConfig := NewServiceConfigByAPI(
+		WithServiceCluster("test-cluster"),
+		WithServiceInterface("test-interface"),
+		WithServiceLoadBalance("test-loadbalance"),
+		WithServiceMethod("test-method1", "test-retries1", "test-lb1"),
+		WithServiceMethod("test-method2", "test-retries2", "test-lb2"),
+		WithServiceMethod("test-method3", "test-retries3", "test-lb3"),
+		WithServiceProtocol("test-protocol"),
+		WithServiceRegistry("test-registry"),
+		WithServiceWarmUpTime("test-warmup"),
+	)
+
+	defaultConsulRegistry := NewDefaultRegistryConfig("consul")
+	assert.Equal(t, defaultConsulRegistry.Address, defaultConsulAddr)
+	assert.Equal(t, defaultConsulRegistry.Protocol, "consul")
+	assert.Equal(t, defaultConsulRegistry.TimeoutStr, defaultRegistryTimeout)
+
+	defaultNacosRegistry := NewDefaultRegistryConfig("nacos")
+	assert.Equal(t, defaultNacosRegistry.Address, defaultNacosAddr)
+	assert.Equal(t, defaultNacosRegistry.Protocol, "nacos")
+	assert.Equal(t, defaultNacosRegistry.TimeoutStr, defaultRegistryTimeout)
+
+	testProviderConfig := NewProviderConfig(
+		WithProviderServices("UserProvider", serviceConfig),
+		WithProviderProtocol("dubbo", "dubbo", "20000"),
+		WithProviderRegistry("demoConsul", defaultConsulRegistry),
+		WithProviderRegistry("demoNacos", defaultNacosRegistry),
+	)
+
+	assert.NotNil(t, testProviderConfig.Services)
+	for k, v := range testProviderConfig.Services {
+		assert.Equal(t, k, "UserProvider")
+		assert.Equal(t, v, serviceConfig)
+	}
+	assert.NotNil(t, testProviderConfig.Registries)
+	i := 0
+	for k, v := range testProviderConfig.Registries {
+		if i == 0 {
+			assert.Equal(t, k, "demoConsul")
+			assert.Equal(t, v, defaultConsulRegistry)
+			i++
+		} else {
+			assert.Equal(t, k, "demoNacos")
+			assert.Equal(t, v, defaultNacosRegistry)
+		}
+	}
+
+	assert.NotNil(t, testProviderConfig.Protocols)
+	assert.Equal(t, testProviderConfig.Protocols["dubbo"].Name, "dubbo")
+	assert.Equal(t, testProviderConfig.Protocols["dubbo"].Port, "20000")
+}
diff --git a/config/config_center_config.go b/config/config_center_config.go
index 752d9d45855c886a1d5122c6e7832196c7e9413b..940b7be951d83a041ebc8121e65a9bd2fd09594b 100644
--- a/config/config_center_config.go
+++ b/config/config_center_config.go
@@ -18,14 +18,13 @@
 package config
 
 import (
-	"context"
 	"net/url"
 	"reflect"
-	"time"
 )
 
 import (
 	"github.com/creasty/defaults"
+	perrors "github.com/pkg/errors"
 )
 
 import (
@@ -35,7 +34,6 @@ import (
 	"github.com/apache/dubbo-go/common/extension"
 	"github.com/apache/dubbo-go/common/logger"
 	"github.com/apache/dubbo-go/config_center"
-	perrors "github.com/pkg/errors"
 )
 
 // ConfigCenterConfig is configuration for config center
@@ -46,7 +44,7 @@ import (
 //
 // ConfigCenter has currently supported Zookeeper, Nacos, Etcd, Consul, Apollo
 type ConfigCenterConfig struct {
-	context       context.Context
+	//context       context.Context
 	Protocol      string `required:"true"  yaml:"protocol"  json:"protocol,omitempty"`
 	Address       string `yaml:"address" json:"address,omitempty"`
 	Cluster       string `yaml:"cluster" json:"cluster,omitempty"`
@@ -60,7 +58,7 @@ type ConfigCenterConfig struct {
 	AppId         string `default:"dubbo" yaml:"app_id"  json:"app_id,omitempty"`
 	TimeoutStr    string `yaml:"timeout"  json:"timeout,omitempty"`
 	RemoteRef     string `required:"false"  yaml:"remote_ref"  json:"remote_ref,omitempty"`
-	timeout       time.Duration
+	//timeout       time.Duration
 }
 
 // UnmarshalYAML unmarshals the ConfigCenterConfig by @unmarshal function
@@ -69,10 +67,7 @@ func (c *ConfigCenterConfig) UnmarshalYAML(unmarshal func(interface{}) error) er
 		return err
 	}
 	type plain ConfigCenterConfig
-	if err := unmarshal((*plain)(c)); err != nil {
-		return err
-	}
-	return nil
+	return unmarshal((*plain)(c))
 }
 
 // GetUrlMap gets url map from ConfigCenterConfig
diff --git a/config/config_loader.go b/config/config_loader.go
index ec591aad6526e5841656465e71465413d01ad5ba..12f57ee7607b328ea069fb343316b43405703e5c 100644
--- a/config/config_loader.go
+++ b/config/config_loader.go
@@ -18,6 +18,7 @@
 package config
 
 import (
+	"flag"
 	"fmt"
 	"log"
 	"os"
@@ -63,9 +64,14 @@ func init() {
 		confProFile string
 	)
 
-	confConFile = os.Getenv(constant.CONF_CONSUMER_FILE_PATH)
-	confProFile = os.Getenv(constant.CONF_PROVIDER_FILE_PATH)
-	confRouterFile = os.Getenv(constant.CONF_ROUTER_FILE_PATH)
+	fs := flag.NewFlagSet("config", flag.ContinueOnError)
+	fs.StringVar(&confConFile, "conConf", os.Getenv(constant.CONF_CONSUMER_FILE_PATH), "default client config path")
+	fs.StringVar(&confProFile, "proConf", os.Getenv(constant.CONF_PROVIDER_FILE_PATH), "default server config path")
+	fs.StringVar(&confRouterFile, "rouConf", os.Getenv(constant.CONF_ROUTER_FILE_PATH), "default router config path")
+	fs.Parse(os.Args[1:])
+	for len(fs.Args()) != 0 {
+		fs.Parse(fs.Args()[1:])
+	}
 
 	if errCon := ConsumerInit(confConFile); errCon != nil {
 		log.Printf("[consumerInit] %#v", errCon)
@@ -406,9 +412,9 @@ func GetBaseConfig() *BaseConfig {
 			baseConfig = &BaseConfig{
 				MetricConfig:       &MetricConfig{},
 				ConfigCenterConfig: &ConfigCenterConfig{},
-				Remotes:            make(map[string]*RemoteConfig, 0),
+				Remotes:            make(map[string]*RemoteConfig),
 				ApplicationConfig:  &ApplicationConfig{},
-				ServiceDiscoveries: make(map[string]*ServiceDiscoveryConfig, 0),
+				ServiceDiscoveries: make(map[string]*ServiceDiscoveryConfig),
 			}
 		}
 	}
diff --git a/config/config_loader_test.go b/config/config_loader_test.go
index 9b253030ff9b218f9756145c9bdefdf512a2e131..5cda3b2a99fb1f8219fba762c097d8369ba07fdc 100644
--- a/config/config_loader_test.go
+++ b/config/config_loader_test.go
@@ -27,7 +27,7 @@ import (
 import (
 	"github.com/Workiva/go-datastructures/slice/skip"
 	gxset "github.com/dubbogo/gost/container/set"
-	gxpage "github.com/dubbogo/gost/page"
+	gxpage "github.com/dubbogo/gost/hash/page"
 	"github.com/stretchr/testify/assert"
 	"go.uber.org/atomic"
 )
@@ -104,7 +104,8 @@ func TestLoad(t *testing.T) {
 
 	conServices = map[string]common.RPCService{}
 	proServices = map[string]common.RPCService{}
-	err := common.ServiceMap.UnRegister("com.MockService", "mock", "MockService")
+	err := common.ServiceMap.UnRegister("com.MockService", "mock",
+		common.ServiceKey("com.MockService", "huadong_idc", "1.0.0"))
 	assert.Nil(t, err)
 	consumerConfig = nil
 	providerConfig = nil
@@ -143,7 +144,7 @@ func TestLoadWithSingleReg(t *testing.T) {
 
 	conServices = map[string]common.RPCService{}
 	proServices = map[string]common.RPCService{}
-	common.ServiceMap.UnRegister("com.MockService", "mock", "MockService")
+	common.ServiceMap.UnRegister("com.MockService", "mock", common.ServiceKey("com.MockService", "huadong_idc", "1.0.0"))
 	consumerConfig = nil
 	providerConfig = nil
 }
@@ -182,7 +183,10 @@ func TestWithNoRegLoad(t *testing.T) {
 
 	conServices = map[string]common.RPCService{}
 	proServices = map[string]common.RPCService{}
-	common.ServiceMap.UnRegister("com.MockService", "mock", "MockService")
+	err := common.ServiceMap.UnRegister("com.MockService", "mock",
+		common.ServiceKey("com.MockService", "huadong_idc", "1.0.0"))
+	assert.Nil(t, err)
+	common.ServiceMap.UnRegister("com.MockService", "mock", common.ServiceKey("com.MockService", "huadong_idc", "1.0.0"))
 	consumerConfig = nil
 	providerConfig = nil
 }
@@ -203,10 +207,12 @@ func TestConfigLoaderWithConfigCenter(t *testing.T) {
 	assert.Equal(t, ProviderConfig{}, GetProviderConfig())
 
 	err = ConsumerInit(conPath)
-	configCenterRefreshConsumer()
+	assert.NoError(t, err)
+	err = configCenterRefreshConsumer()
 	assert.NoError(t, err)
 	err = ProviderInit(proPath)
-	configCenterRefreshProvider()
+	assert.NoError(t, err)
+	err = configCenterRefreshProvider()
 	assert.NoError(t, err)
 
 	assert.NotNil(t, consumerConfig)
@@ -256,13 +262,15 @@ func TestConfigLoaderWithConfigCenterSingleRegistry(t *testing.T) {
 	assert.Equal(t, ProviderConfig{}, GetProviderConfig())
 
 	err = ConsumerInit(conPath)
+	assert.NoError(t, err)
 	checkApplicationName(consumerConfig.ApplicationConfig)
-	configCenterRefreshConsumer()
+	err = configCenterRefreshConsumer()
 	checkRegistries(consumerConfig.Registries, consumerConfig.Registry)
 	assert.NoError(t, err)
 	err = ProviderInit(proPath)
+	assert.NoError(t, err)
 	checkApplicationName(providerConfig.ApplicationConfig)
-	configCenterRefreshProvider()
+	err = configCenterRefreshProvider()
 	checkRegistries(providerConfig.Registries, providerConfig.Registry)
 	assert.NoError(t, err)
 
diff --git a/config/consumer_config.go b/config/consumer_config.go
index c8083603e12570a4492dd63a749adb4aa89663c8..ff53366c45406dde8e4c0daac7a5d68aa6bd8934 100644
--- a/config/consumer_config.go
+++ b/config/consumer_config.go
@@ -71,10 +71,7 @@ func (c *ConsumerConfig) UnmarshalYAML(unmarshal func(interface{}) error) error
 		return err
 	}
 	type plain ConsumerConfig
-	if err := unmarshal((*plain)(c)); err != nil {
-		return err
-	}
-	return nil
+	return unmarshal((*plain)(c))
 }
 
 // nolint
diff --git a/config/graceful_shutdown.go b/config/graceful_shutdown.go
index aa102f35e9048dbc6fbcb10db19cb802b2f3147b..89ac2e38fceceb2471372c3e2a859ee771bd36a6 100644
--- a/config/graceful_shutdown.go
+++ b/config/graceful_shutdown.go
@@ -51,6 +51,7 @@ import (
  * The signals are different on different platforms.
  * We define them by using 'package build' feature https://golang.org/pkg/go/build/
  */
+const defaultShutDownTime = time.Second * 60
 
 // nolint
 func GracefulShutdownInit() {
@@ -64,20 +65,17 @@ func GracefulShutdownInit() {
 		case sig := <-signals:
 			logger.Infof("get signal %s, application will shutdown.", sig)
 			// gracefulShutdownOnce.Do(func() {
+			time.AfterFunc(totalTimeout(), func() {
+				logger.Warn("Shutdown gracefully timeout, application will shutdown immediately. ")
+				os.Exit(0)
+			})
 			BeforeShutdown()
-
 			// those signals' original behavior is exit with dump ths stack, so we try to keep the behavior
 			for _, dumpSignal := range DumpHeapShutdownSignals {
 				if sig == dumpSignal {
 					debug.WriteHeapDump(os.Stdout.Fd())
 				}
 			}
-
-			time.AfterFunc(totalTimeout(), func() {
-				logger.Warn("Shutdown gracefully timeout, application will shutdown immediately. ")
-				os.Exit(0)
-			})
-
 			os.Exit(0)
 		}
 	}()
@@ -196,7 +194,7 @@ func waitingProcessedTimeout(shutdownConfig *ShutdownConfig) {
 }
 
 func totalTimeout() time.Duration {
-	var providerShutdown time.Duration
+	var providerShutdown = defaultShutDownTime
 	if providerConfig != nil && providerConfig.ShutdownConfig != nil {
 		providerShutdown = providerConfig.ShutdownConfig.GetTimeout()
 	}
diff --git a/config/graceful_shutdown_config_test.go b/config/graceful_shutdown_config_test.go
index 80eb5317386f4e9d966f7a9f07635a810727d77c..43d2fc3c1bfdabf618ca07c696a0bc1d1018aa42 100644
--- a/config/graceful_shutdown_config_test.go
+++ b/config/graceful_shutdown_config_test.go
@@ -32,8 +32,8 @@ func TestShutdownConfigGetTimeout(t *testing.T) {
 	assert.False(t, config.RequestsFinished)
 
 	config = ShutdownConfig{
-		Timeout:     "12x",
-		StepTimeout: "34a",
+		Timeout:     "60s",
+		StepTimeout: "10s",
 	}
 
 	assert.Equal(t, 60*time.Second, config.GetTimeout())
diff --git a/config/interfaces/config_post_processor.go b/config/interfaces/config_post_processor.go
new file mode 100644
index 0000000000000000000000000000000000000000..53dd71780ff0807065e8c4b0e00ab4fe8b6a4823
--- /dev/null
+++ b/config/interfaces/config_post_processor.go
@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package interfaces
+
+import (
+	"github.com/apache/dubbo-go/common"
+)
+
+// ConfigPostProcessor is an extension to give users a chance to customize configs against ReferenceConfig and
+// ServiceConfig during deployment time.
+type ConfigPostProcessor interface {
+	// PostProcessReferenceConfig customizes ReferenceConfig's params.
+	PostProcessReferenceConfig(*common.URL)
+
+	// PostProcessServiceConfig customizes ServiceConfig's params.
+	PostProcessServiceConfig(*common.URL)
+}
diff --git a/config/method_config.go b/config/method_config.go
index b64306fd6aa865d219506ea2722067619b00fea7..db52940c3db6b4b81b0467945b538c9b540cd46a 100644
--- a/config/method_config.go
+++ b/config/method_config.go
@@ -57,8 +57,5 @@ func (c *MethodConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
 		return err
 	}
 	type plain MethodConfig
-	if err := unmarshal((*plain)(c)); err != nil {
-		return err
-	}
-	return nil
+	return unmarshal((*plain)(c))
 }
diff --git a/config/provider_config.go b/config/provider_config.go
index fcb429b6400936f72c09035968b4d4c72387246c..0aee5600298233b764df75b02c745a3ec8d9faef 100644
--- a/config/provider_config.go
+++ b/config/provider_config.go
@@ -58,10 +58,7 @@ func (c *ProviderConfig) UnmarshalYAML(unmarshal func(interface{}) error) error
 		return err
 	}
 	type plain ProviderConfig
-	if err := unmarshal((*plain)(c)); err != nil {
-		return err
-	}
-	return nil
+	return unmarshal((*plain)(c))
 }
 
 // nolint
diff --git a/config/reference_config.go b/config/reference_config.go
index 2e914ac9a718aaef93732fafa18f7d954cc0c5f6..f71c7ec1925209c138ad1ccf5668f3ef18d35e13 100644
--- a/config/reference_config.go
+++ b/config/reference_config.go
@@ -86,17 +86,13 @@ func (c *ReferenceConfig) UnmarshalYAML(unmarshal func(interface{}) error) error
 	}
 
 	*c = ReferenceConfig(raw)
-	if err := defaults.Set(c); err != nil {
-		return err
-	}
-
-	return nil
+	return defaults.Set(c)
 }
 
 // Refer ...
 func (c *ReferenceConfig) Refer(_ interface{}) {
 	cfgURL := common.NewURLWithOptions(
-		common.WithPath(c.id),
+		common.WithPath(c.InterfaceName),
 		common.WithProtocol(c.Protocol),
 		common.WithParams(c.getUrlMap()),
 		common.WithParamsValue(constant.BEAN_NAME_KEY, c.id),
@@ -104,6 +100,7 @@ func (c *ReferenceConfig) Refer(_ interface{}) {
 	if c.ForceTag {
 		cfgURL.AddParam(constant.ForceUseTag, "true")
 	}
+	c.postProcessConfig(cfgURL)
 	if c.Url != "" {
 		// 1. user specified URL, could be peer-to-peer address, or register center's address.
 		urlStrings := gxstrings.RegSplit(c.Url, "\\s*[;]+\\s*")
@@ -117,7 +114,7 @@ func (c *ReferenceConfig) Refer(_ interface{}) {
 				c.urls = append(c.urls, serviceUrl)
 			} else {
 				if serviceUrl.Path == "" {
-					serviceUrl.Path = "/" + c.id
+					serviceUrl.Path = "/" + c.InterfaceName
 				}
 				// merge url need to do
 				newUrl := common.MergeUrl(serviceUrl, cfgURL)
@@ -168,7 +165,8 @@ func (c *ReferenceConfig) Refer(_ interface{}) {
 		// FailoverClusterInvoker(RegistryDirectory, routing happens here) -> Invoker
 		c.invoker = cluster.Join(directory.NewStaticDirectory(invokers))
 	}
-
+	// publish consumer metadata
+	publishConsumerDefinition(cfgURL)
 	// create proxy
 	if c.Async {
 		callback := GetCallback(c.id)
@@ -189,6 +187,11 @@ func (c *ReferenceConfig) GetRPCService() common.RPCService {
 	return c.pxy.Get()
 }
 
+// GetProxy gets proxy
+func (c *ReferenceConfig) GetProxy() *proxy.Proxy {
+	return c.pxy
+}
+
 func (c *ReferenceConfig) getUrlMap() url.Values {
 	urlMap := url.Values{}
 	//first set user params
@@ -252,3 +255,21 @@ func (c *ReferenceConfig) GenericLoad(id string) {
 	c.Refer(genericService)
 	c.Implement(genericService)
 }
+
+// GetInvoker get invoker from ReferenceConfig
+func (c *ReferenceConfig) GetInvoker() protocol.Invoker {
+	return c.invoker
+}
+
+func publishConsumerDefinition(url *common.URL) {
+	if remoteMetadataService, err := extension.GetRemoteMetadataService(); err == nil && remoteMetadataService != nil {
+		remoteMetadataService.PublishServiceDefinition(url)
+	}
+}
+
+// postProcessConfig asks registered ConfigPostProcessor to post-process the current ReferenceConfig.
+func (c *ReferenceConfig) postProcessConfig(url *common.URL) {
+	for _, p := range extension.GetConfigPostProcessors() {
+		p.PostProcessReferenceConfig(url)
+	}
+}
diff --git a/config/registry_config.go b/config/registry_config.go
index 5aff45dc9f4dd20022255ada04cff78bbf295f3e..ed81a07c637e5de2972bbbd21dab8847c3d42f78 100644
--- a/config/registry_config.go
+++ b/config/registry_config.go
@@ -63,10 +63,7 @@ func (c *RegistryConfig) UnmarshalYAML(unmarshal func(interface{}) error) error
 		return err
 	}
 	type plain RegistryConfig
-	if err := unmarshal((*plain)(c)); err != nil {
-		return err
-	}
-	return nil
+	return unmarshal((*plain)(c))
 }
 
 // nolint
diff --git a/config/registry_config_test.go b/config/registry_config_test.go
index 6e5dedc34ff5489fc190841bce73cd015eb78132..8bd2de1735496ab9e785759609d8bc3459fc1505 100644
--- a/config/registry_config_test.go
+++ b/config/registry_config_test.go
@@ -17,7 +17,6 @@
 package config
 
 import (
-	"fmt"
 	"testing"
 )
 
@@ -43,7 +42,7 @@ func TestLoadRegistries(t *testing.T) {
 		},
 	}
 	urls := loadRegistries(target, regs, common.CONSUMER)
-	fmt.Println(urls[0])
+	t.Logf("loadRegistries() = urls:%v", urls)
 	assert.Equal(t, "127.0.0.2:2181,128.0.0.1:2181", urls[0].Location)
 }
 
@@ -61,6 +60,6 @@ func TestLoadRegistries1(t *testing.T) {
 		},
 	}
 	urls := loadRegistries(target, regs, common.CONSUMER)
-	fmt.Println(urls[0])
+	t.Logf("loadRegistries() = urls:%v", urls)
 	assert.Equal(t, "127.0.0.2:2181", urls[0].Location)
 }
diff --git a/config/router_config.go b/config/router_config.go
index ed42577ed3cce2e5a1ab0da290f0d5450553d8fb..ea19b46800d747de763bbb1ee679f8398e440f3d 100644
--- a/config/router_config.go
+++ b/config/router_config.go
@@ -66,7 +66,7 @@ func initRouterConfig(content []byte, factories map[string]router.FilePriorityRo
 		r, e := factory.NewFileRouter(content)
 		if e == nil {
 			url := r.URL()
-			routerURLSet.Add(&url)
+			routerURLSet.Add(url)
 			return nil
 		}
 		logger.Warnf("router config type %s create fail {%v}\n", k, e)
diff --git a/config/service_config.go b/config/service_config.go
index b3febc68d6143b77c08c6fafc5cda55c6e00ac05..e8523bdea7aa014836580b7ce33fe215c145289d 100644
--- a/config/service_config.go
+++ b/config/service_config.go
@@ -78,6 +78,7 @@ type ServiceConfig struct {
 	Protocols     map[string]*ProtocolConfig
 	unexported    *atomic.Bool
 	exported      *atomic.Bool
+	export        bool // a flag to control whether the current service should export or not
 	rpcService    common.RPCService
 	cacheMutex    sync.Mutex
 	cacheProtocol protocol.Protocol
@@ -102,6 +103,7 @@ func (c *ServiceConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
 	}
 	c.exported = atomic.NewBool(false)
 	c.unexported = atomic.NewBool(false)
+	c.export = true
 	return nil
 }
 
@@ -112,6 +114,7 @@ func NewServiceConfig(id string, context context.Context) *ServiceConfig {
 		id:         id,
 		unexported: atomic.NewBool(false),
 		exported:   atomic.NewBool(false),
+		export:     true,
 	}
 }
 
@@ -171,9 +174,10 @@ func (c *ServiceConfig) Export() error {
 	proxyFactory := extension.GetProxyFactory(providerConfig.ProxyFactory)
 	for _, proto := range protocolConfigs {
 		// registry the service reflect
-		methods, err := common.ServiceMap.Register(c.InterfaceName, proto.Name, c.rpcService)
+		methods, err := common.ServiceMap.Register(c.InterfaceName, proto.Name, c.Group, c.Version, c.rpcService)
 		if err != nil {
-			formatErr := perrors.Errorf("The service %v export the protocol %v error! Error message is %v.", c.InterfaceName, proto.Name, err.Error())
+			formatErr := perrors.Errorf("The service %v export the protocol %v error! Error message is %v.",
+				c.InterfaceName, proto.Name, err.Error())
 			logger.Errorf(formatErr.Error())
 			return formatErr
 		}
@@ -184,7 +188,7 @@ func (c *ServiceConfig) Export() error {
 			nextPort = nextPort.Next()
 		}
 		ivkURL := common.NewURLWithOptions(
-			common.WithPath(c.id),
+			common.WithPath(c.InterfaceName),
 			common.WithProtocol(proto.Name),
 			common.WithIp(proto.Ip),
 			common.WithPort(port),
@@ -198,6 +202,13 @@ func (c *ServiceConfig) Export() error {
 			ivkURL.AddParam(constant.Tagkey, c.Tag)
 		}
 
+		// post process the URL to be exported
+		c.postProcessConfig(ivkURL)
+		// config post processor may set "export" to false
+		if !ivkURL.GetParamBool(constant.EXPORT_KEY, true) {
+			return nil
+		}
+
 		if len(regUrls) > 0 {
 			c.cacheMutex.Lock()
 			if c.cacheProtocol == nil {
@@ -223,6 +234,7 @@ func (c *ServiceConfig) Export() error {
 			}
 			c.exporters = append(c.exporters, exporter)
 		}
+		publishServiceDefinition(ivkURL)
 	}
 	c.exported.Store(true)
 	return nil
@@ -302,7 +314,10 @@ func (c *ServiceConfig) getUrlMap() url.Values {
 
 	// auth filter
 	urlMap.Set(constant.SERVICE_AUTH_KEY, c.Auth)
-	urlMap.Set(constant.PARAMTER_SIGNATURE_ENABLE_KEY, c.ParamSign)
+	urlMap.Set(constant.PARAMETER_SIGNATURE_ENABLE_KEY, c.ParamSign)
+
+	// whether to export or not
+	urlMap.Set(constant.EXPORT_KEY, strconv.FormatBool(c.export))
 
 	for _, v := range c.Methods {
 		prefix := "methods." + v.Name + "."
@@ -332,3 +347,16 @@ func (c *ServiceConfig) GetExportedUrls() []*common.URL {
 	}
 	return nil
 }
+
+func publishServiceDefinition(url *common.URL) {
+	if remoteMetadataService, err := extension.GetRemoteMetadataService(); err == nil && remoteMetadataService != nil {
+		remoteMetadataService.PublishServiceDefinition(url)
+	}
+}
+
+// postProcessConfig asks registered ConfigPostProcessor to post-process the current ServiceConfig.
+func (c *ServiceConfig) postProcessConfig(url *common.URL) {
+	for _, p := range extension.GetConfigPostProcessors() {
+		p.PostProcessServiceConfig(url)
+	}
+}
diff --git a/config/service_config_test.go b/config/service_config_test.go
index 61c8864b6ab7eb146a92e76187cd6363bbdb8dc8..aea0bde7a25d14bb720af0b83f06f44bdd6806c9 100644
--- a/config/service_config_test.go
+++ b/config/service_config_test.go
@@ -176,7 +176,8 @@ func TestExport(t *testing.T) {
 		service := providerConfig.Services[i]
 		service.Implement(&MockService{})
 		service.Protocols = providerConfig.Protocols
-		service.Export()
+		err := service.Export()
+		assert.Nil(t, err)
 	}
 	providerConfig = nil
 }
diff --git a/config/testdata/router_config.yml b/config/testdata/router_config.yml
index 1845650d93c152585c4d4caf60ab7aa3d5b04887..eec4c8624f26c4007b1b8d7b7ed46ee0bf354745 100644
--- a/config/testdata/router_config.yml
+++ b/config/testdata/router_config.yml
@@ -1,5 +1,5 @@
 # dubbo router yaml configure file
-routerRules: 
+routerRules:
   - scope: application
     key: mock-app
     priority: 1
diff --git a/config/testdata/router_config_error.yml b/config/testdata/router_config_error.yml
index 74e89cc52ec772a52c3c424a94276075fb099f8c..1a1fda696663f5bee0e7bd5af1752558033ba333 100644
--- a/config/testdata/router_config_error.yml
+++ b/config/testdata/router_config_error.yml
@@ -1,5 +1,5 @@
 # dubbo router yaml configure file
-routerRules: 
+routerRules:
   - priority: 1
     force: true
     noConditions :
diff --git a/config_center/apollo/impl.go b/config_center/apollo/impl.go
index c69fc2f66b23cd877b447fc78084fb9197c253aa..5b74f5e15013c07de000cc18cab98238b96ac060 100644
--- a/config_center/apollo/impl.go
+++ b/config_center/apollo/impl.go
@@ -146,9 +146,8 @@ func (c *apolloConfiguration) getAddressWithProtocolPrefix(url *common.URL) stri
 	address := url.Location
 	converted := address
 	if len(address) != 0 {
-		reg := regexp.MustCompile("\\s+")
-		address = reg.ReplaceAllString(address, "")
-		parts := strings.Split(address, ",")
+		addr := regexp.MustCompile(`\s+`).ReplaceAllString(address, "")
+		parts := strings.Split(addr, ",")
 		addrs := make([]string, 0)
 		for _, part := range parts {
 			addr := part
diff --git a/config_center/apollo/impl_test.go b/config_center/apollo/impl_test.go
index 4720775c285f84bd4fe2146240feea87c8a20817..3b2cb168402534c1a8071e644827a0f948282f75 100644
--- a/config_center/apollo/impl_test.go
+++ b/config_center/apollo/impl_test.go
@@ -126,24 +126,24 @@ func initApollo() *httptest.Server {
 }
 
 func configResponse(rw http.ResponseWriter, _ *http.Request) {
-	result := fmt.Sprintf(mockConfigRes)
+	result := mockConfigRes
 	fmt.Fprintf(rw, "%s", result)
 }
 
 func notifyResponse(rw http.ResponseWriter, req *http.Request) {
-	result := fmt.Sprintf(mockNotifyRes)
+	result := mockNotifyRes
 	fmt.Fprintf(rw, "%s", result)
 }
 
 func serviceConfigResponse(rw http.ResponseWriter, _ *http.Request) {
-	result := fmt.Sprintf(mockServiceConfigRes)
+	result := mockServiceConfigRes
 	fmt.Fprintf(rw, "%s", result)
 }
 
 // run mock config server
 func runMockConfigServer(handlerMap map[string]func(http.ResponseWriter, *http.Request),
 	notifyHandler func(http.ResponseWriter, *http.Request)) *httptest.Server {
-	uriHandlerMap := make(map[string]func(http.ResponseWriter, *http.Request), 0)
+	uriHandlerMap := make(map[string]func(http.ResponseWriter, *http.Request))
 	for namespace, handler := range handlerMap {
 		uri := fmt.Sprintf("/configs/%s/%s/%s", mockAppId, mockCluster, namespace)
 		uriHandlerMap[uri] = handler
@@ -227,7 +227,7 @@ func TestListener(t *testing.T) {
 	apollo.listeners.Range(func(_, value interface{}) bool {
 		apolloListener := value.(*apolloListener)
 		for e := range apolloListener.listeners {
-			fmt.Println(e)
+			t.Logf("listener:%v", e)
 			listenerCount++
 		}
 		return true
diff --git a/config_center/apollo/listener.go b/config_center/apollo/listener.go
index ace5ed026875d2478e5d81b1974a6c60f856378c..44d325582f3b04871aaadc5b39cbc17ab7a0eeea 100644
--- a/config_center/apollo/listener.go
+++ b/config_center/apollo/listener.go
@@ -36,7 +36,7 @@ type apolloListener struct {
 // nolint
 func newApolloListener() *apolloListener {
 	return &apolloListener{
-		listeners: make(map[config_center.ConfigurationListener]struct{}, 0),
+		listeners: make(map[config_center.ConfigurationListener]struct{}),
 	}
 }
 
diff --git a/config_center/configurator/override_test.go b/config_center/configurator/override_test.go
index bb9c36776337c5dde1c5b2dcc9dd59ee82067a02..4d2552d1845e57ada38b635bf3cb047891e73abf 100644
--- a/config_center/configurator/override_test.go
+++ b/config_center/configurator/override_test.go
@@ -37,7 +37,7 @@ const (
 	failover = "failover"
 )
 
-func TestConfigureVerison2p6(t *testing.T) {
+func TestConfigureVersion2p6(t *testing.T) {
 	url, err := common.NewURL("override://0.0.0.0:0/com.xxx.mock.userProvider?group=1&version=1&cluster=failfast&application=BDTService")
 	assert.NoError(t, err)
 	configurator := extension.GetConfigurator(defaults, url)
@@ -49,7 +49,7 @@ func TestConfigureVerison2p6(t *testing.T) {
 	assert.Equal(t, failfast, providerUrl.GetParam(constant.CLUSTER_KEY, ""))
 }
 
-func TestConfigureVerisonOverrideAddr(t *testing.T) {
+func TestConfigureVersionOverrideAddr(t *testing.T) {
 	url, err := common.NewURL("override://0.0.0.0:0/com.xxx.mock.userProvider?group=1&version=1&cluster=failfast&application=BDTService&providerAddresses=127.0.0.2:20001|127.0.0.3:20001")
 	assert.NoError(t, err)
 	configurator := extension.GetConfigurator(defaults, url)
@@ -61,7 +61,7 @@ func TestConfigureVerisonOverrideAddr(t *testing.T) {
 	assert.Equal(t, failover, providerUrl.GetParam(constant.CLUSTER_KEY, ""))
 }
 
-func TestConfigureVerison2p6WithIp(t *testing.T) {
+func TestConfigureVersion2p6WithIp(t *testing.T) {
 	url, err := common.NewURL("override://127.0.0.1:20001/com.xxx.mock.userProvider?group=1&version=1&cluster=failfast&application=BDTService")
 	assert.NoError(t, err)
 	configurator := extension.GetConfigurator(defaults, url)
@@ -74,7 +74,7 @@ func TestConfigureVerison2p6WithIp(t *testing.T) {
 
 }
 
-func TestConfigureVerison2p7(t *testing.T) {
+func TestConfigureVersion2p7(t *testing.T) {
 	url, err := common.NewURL("jsonrpc://0.0.0.0:20001/com.xxx.mock.userProvider?group=1&version=1&cluster=failfast&application=BDTService&configVersion=1.0&side=provider")
 	assert.NoError(t, err)
 	configurator := extension.GetConfigurator(defaults, url)
diff --git a/config_center/file/impl.go b/config_center/file/impl.go
index f29a33d5e2519b54a5496f5ea03ff170020bb28c..6489a073deff643ad7eecc7f3c26ef0b8899ac53 100644
--- a/config_center/file/impl.go
+++ b/config_center/file/impl.go
@@ -24,7 +24,6 @@ import (
 	"os"
 	"os/exec"
 	"os/user"
-	"path"
 	"path/filepath"
 	"runtime"
 	"strings"
@@ -41,11 +40,19 @@ import (
 	"github.com/apache/dubbo-go/config_center/parser"
 )
 
+var (
+	osType = runtime.GOOS
+)
+
+const (
+	windowsOS = "windows"
+)
+
 const (
-	PARAM_NAME_PREFIX                 = "dubbo.config-center."
-	CONFIG_CENTER_DIR_PARAM_NAME      = PARAM_NAME_PREFIX + "dir"
-	CONFIG_CENTER_ENCODING_PARAM_NAME = PARAM_NAME_PREFIX + "encoding"
-	DEFAULT_CONFIG_CENTER_ENCODING    = "UTF-8"
+	ParamNamePrefix               = "dubbo.config-center."
+	ConfigCenterDirParamName      = ParamNamePrefix + "dir"
+	ConfigCenterEncodingParamName = ParamNamePrefix + "encoding"
+	defaultConfigCenterEncoding   = "UTF-8"
 )
 
 // FileSystemDynamicConfiguration
@@ -59,24 +66,14 @@ type FileSystemDynamicConfiguration struct {
 }
 
 func newFileSystemDynamicConfiguration(url *common.URL) (*FileSystemDynamicConfiguration, error) {
-	encode := url.GetParam(CONFIG_CENTER_ENCODING_PARAM_NAME, DEFAULT_CONFIG_CENTER_ENCODING)
+	encode := url.GetParam(ConfigCenterEncodingParamName, defaultConfigCenterEncoding)
 
-	root := url.GetParam(CONFIG_CENTER_DIR_PARAM_NAME, "")
+	root := url.GetParam(ConfigCenterDirParamName, "")
 	var c *FileSystemDynamicConfiguration
-	if _, err := os.Stat(root); err != nil {
-		// not exist, use default, /XXX/xx/.dubbo/config-center
-		if rp, err := Home(); err != nil {
-			return nil, perrors.WithStack(err)
-		} else {
-			root = path.Join(rp, ".dubbo", "config-center")
-		}
-	}
 
-	if _, err := os.Stat(root); err != nil {
-		// it must be dir, if not exist, will create
-		if err = createDir(root); err != nil {
-			return nil, perrors.WithStack(err)
-		}
+	root, err := mkdirIfNecessary(root)
+	if err != nil {
+		return nil, err
 	}
 
 	c = &FileSystemDynamicConfiguration{
@@ -180,7 +177,7 @@ func (fsdc *FileSystemDynamicConfiguration) GetConfigKeysByGroup(group string) (
 	return r, nil
 }
 
-// RemoveConfig will remove the config whit hte (key, group)
+// RemoveConfig will remove tconfig_center/nacos/impl_testhe config whit hte (key, group)
 func (fsdc *FileSystemDynamicConfiguration) RemoveConfig(key string, group string) error {
 	tmpPath := fsdc.GetPath(key, group)
 	_, err := fsdc.deleteDelay(tmpPath)
@@ -195,18 +192,18 @@ func (fsdc *FileSystemDynamicConfiguration) Close() error {
 // GetPath get path
 func (fsdc *FileSystemDynamicConfiguration) GetPath(key string, group string) string {
 	if len(key) == 0 {
-		return path.Join(fsdc.rootPath, group)
+		return filepath.Join(fsdc.rootPath, group)
 	}
 
 	if len(group) == 0 {
 		group = config_center.DEFAULT_GROUP
 	}
 
-	return path.Join(fsdc.rootPath, group, key)
+	return filepath.Join(fsdc.rootPath, group, adapterKey(key))
 }
 
 func (fsdc *FileSystemDynamicConfiguration) deleteDelay(path string) (bool, error) {
-	if path == "" {
+	if len(path) == 0 {
 		return false, nil
 	}
 
@@ -226,9 +223,7 @@ func (fsdc *FileSystemDynamicConfiguration) write2File(fp string, value string)
 }
 
 func forceMkdirParent(fp string) error {
-	pd := getParentDirectory(fp)
-
-	return createDir(pd)
+	return createDir(getParentDirectory(fp))
 }
 
 func createDir(path string) error {
@@ -250,6 +245,7 @@ func substr(s string, pos, length int) string {
 	if l > len(runes) {
 		l = len(runes)
 	}
+
 	return string(runes[pos:l])
 }
 
@@ -264,7 +260,7 @@ func Home() (string, error) {
 	}
 
 	// cross compile support
-	if "windows" == runtime.GOOS {
+	if windowsOS == osType {
 		return homeWindows()
 	}
 
@@ -287,7 +283,7 @@ func homeUnix() (string, error) {
 	}
 
 	result := strings.TrimSpace(stdout.String())
-	if result == "" {
+	if len(result) == 0 {
 		return "", errors.New("blank output when reading home directory")
 	}
 
@@ -298,12 +294,66 @@ func homeWindows() (string, error) {
 	drive := os.Getenv("HOMEDRIVE")
 	homePath := os.Getenv("HOMEPATH")
 	home := drive + homePath
-	if drive == "" || homePath == "" {
+	if len(drive) == 0 || len(homePath) == 0 {
 		home = os.Getenv("USERPROFILE")
 	}
-	if home == "" {
+	if len(home) == 0 {
 		return "", errors.New("HOMEDRIVE, HOMEPATH, and USERPROFILE are blank")
 	}
 
 	return home, nil
 }
+
+func mkdirIfNecessary(urlRoot string) (string, error) {
+	if !legalPath(urlRoot) {
+		// not exist, use default, mac is: /XXX/xx/.dubbo/config-center
+		rp, err := Home()
+		if err != nil {
+			return "", perrors.WithStack(err)
+		}
+
+		urlRoot = adapterUrl(rp)
+	}
+
+	if _, err := os.Stat(urlRoot); err != nil {
+		// it must be dir, if not exist, will create
+		if err = createDir(urlRoot); err != nil {
+			return "", perrors.WithStack(err)
+		}
+	}
+
+	return urlRoot, nil
+}
+
+func legalPath(path string) bool {
+	if len(path) == 0 {
+		return false
+	}
+	if _, err := os.Stat(path); err != nil {
+		return false
+	}
+
+	return true
+}
+
+func adapterUrl(rp string) string {
+	if osType == windowsOS {
+		return filepath.Join(rp, "_dubbo", "config-center")
+	}
+
+	return filepath.Join(rp, ".dubbo", "config-center")
+}
+
+// used for GetPath. param key default is instance's id.
+// e.g: (ip:port) 127.0.0.1:20081, in windows env, will change to 127_0_0_1_20081
+func adapterKey(key string) string {
+	if len(key) == 0 {
+		return ""
+	}
+
+	if osType == windowsOS {
+		return strings.ReplaceAll(strings.ReplaceAll(key, ".", "_"), ":", "_")
+	}
+
+	return key
+}
diff --git a/config_center/file/impl_test.go b/config_center/file/impl_test.go
index e912cb7078fe42b514ba510db6b7f871ab998ea9..556b6a3d7aa168a83b0861936ad1dc54f827eb18 100644
--- a/config_center/file/impl_test.go
+++ b/config_center/file/impl_test.go
@@ -63,6 +63,7 @@ func TestPublishAndGetConfig(t *testing.T) {
 
 func TestAddListener(t *testing.T) {
 	file, err := initFileData(t)
+	assert.Nil(t, err)
 	group := "dubbogo"
 	value := "Test Value"
 	err = file.PublishConfig(key, group, value)
@@ -81,6 +82,7 @@ func TestAddListener(t *testing.T) {
 
 func TestRemoveListener(t *testing.T) {
 	file, err := initFileData(t)
+	assert.NoError(t, err)
 	group := "dubbogo"
 	value := "Test Value"
 	err = file.PublishConfig(key, group, value)
@@ -106,9 +108,11 @@ func TestRemoveListener(t *testing.T) {
 
 func TestGetConfigKeysByGroup(t *testing.T) {
 	file, err := initFileData(t)
+	assert.Nil(t, err)
 	group := "dubbogo"
 	value := "Test Value"
 	err = file.PublishConfig(key, group, value)
+	assert.NoError(t, err)
 	gs, err := file.GetConfigKeysByGroup(group)
 	assert.NoError(t, err)
 	assert.Equal(t, 1, gs.Size())
diff --git a/config_center/nacos/client.go b/config_center/nacos/client.go
index f3942c023d6bc7b7c7afe09863283cbc315fdb1f..1e96b36a4f19b8548d2ffc9818251ebfa96f365b 100644
--- a/config_center/nacos/client.go
+++ b/config_center/nacos/client.go
@@ -18,7 +18,6 @@
 package nacos
 
 import (
-	"path/filepath"
 	"strconv"
 	"strings"
 	"sync"
@@ -38,9 +37,6 @@ import (
 	"github.com/apache/dubbo-go/common/logger"
 )
 
-// Nacos Log dir, it can be override when creating client by config_center.log_dir
-var logDir = filepath.Join("logs", "nacos", "log")
-
 // NacosClient Nacos client
 type NacosClient struct {
 	name       string
@@ -69,7 +65,7 @@ type option func(*options)
 
 type options struct {
 	nacosName string
-	client    *NacosClient
+	//client    *NacosClient
 }
 
 // WithNacosName Set nacos name
diff --git a/config_center/nacos/impl_test.go b/config_center/nacos/impl_test.go
index 40efa5f4f288d0eff6d9648481cb2a14bfdb3931..b7bd94bf96bfdafed1591e58f338fa23a0b96a6f 100644
--- a/config_center/nacos/impl_test.go
+++ b/config_center/nacos/impl_test.go
@@ -40,7 +40,7 @@ import (
 // run mock config server
 func runMockConfigServer(configHandler func(http.ResponseWriter, *http.Request),
 	configListenHandler func(http.ResponseWriter, *http.Request)) *httptest.Server {
-	uriHandlerMap := make(map[string]func(http.ResponseWriter, *http.Request), 0)
+	uriHandlerMap := make(map[string]func(http.ResponseWriter, *http.Request))
 
 	uriHandlerMap["/nacos/v1/cs/configs"] = configHandler
 	uriHandlerMap["/nacos/v1/cs/configs/listener"] = configListenHandler
@@ -85,6 +85,8 @@ func TestGetConfig(t *testing.T) {
 	nacos, err := initNacosData(t)
 	assert.NoError(t, err)
 	configs, err := nacos.GetProperties("dubbo.properties", config_center.WithGroup("dubbo"))
+	assert.Empty(t, configs)
+	assert.NoError(t, err)
 	_, err = nacos.Parser().Parse(configs)
 	assert.NoError(t, err)
 }
@@ -100,7 +102,8 @@ func TestNacosDynamicConfiguration_GetConfigKeysByGroup(t *testing.T) {
 }
 `
 	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Write([]byte(data))
+		_, err := w.Write([]byte(data))
+		assert.Nil(t, err)
 	}))
 
 	nacosURL := strings.ReplaceAll(ts.URL, "http", "registry")
diff --git a/config_center/nacos/listener.go b/config_center/nacos/listener.go
index 57df0363a1d7712e1e02a66595030c207b19c170..b0607e29b4d4d3d5caf9ee7072d9c2e44088738a 100644
--- a/config_center/nacos/listener.go
+++ b/config_center/nacos/listener.go
@@ -38,7 +38,6 @@ func callback(listener config_center.ConfigurationListener, _, _, dataId, data s
 func (n *nacosDynamicConfiguration) addListener(key string, listener config_center.ConfigurationListener) {
 	_, loaded := n.keyListeners.Load(key)
 	if !loaded {
-		_, cancel := context.WithCancel(context.Background())
 		err := (*n.client.Client()).ListenConfig(vo.ConfigParam{
 			DataId: key,
 			Group:  "dubbo",
@@ -50,13 +49,15 @@ func (n *nacosDynamicConfiguration) addListener(key string, listener config_cent
 			logger.Errorf("nacos : listen config fail, error:%v ", err)
 			return
 		}
+		_, cancel := context.WithCancel(context.Background())
 		newListener := make(map[config_center.ConfigurationListener]context.CancelFunc)
 		newListener[listener] = cancel
 		n.keyListeners.Store(key, newListener)
-	} else {
-		// TODO check goroutine alive, but this version of go_nacos_sdk is not support.
-		logger.Infof("profile:%s. this profile is already listening", key)
+		return
 	}
+
+	// TODO check goroutine alive, but this version of go_nacos_sdk is not support.
+	logger.Infof("profile:%s. this profile is already listening", key)
 }
 
 func (n *nacosDynamicConfiguration) removeListener(key string, listener config_center.ConfigurationListener) {
diff --git a/config_center/zookeeper/impl.go b/config_center/zookeeper/impl.go
index 17812e917f533d28c052c7cda3411de44b9aa7b5..f3b2235025c033cd125c9a87b2c277a5a3d70243 100644
--- a/config_center/zookeeper/impl.go
+++ b/config_center/zookeeper/impl.go
@@ -52,7 +52,7 @@ type zookeeperDynamicConfiguration struct {
 	done     chan struct{}
 	client   *zookeeper.ZookeeperClient
 
-	listenerLock  sync.Mutex
+	//listenerLock  sync.Mutex
 	listener      *zookeeper.ZkEventListener
 	cacheListener *CacheListener
 	parser        parser.ConfigurationParser
diff --git a/config_center/zookeeper/impl_test.go b/config_center/zookeeper/impl_test.go
index d4a9de41fd62d48ce4528056289839a38285c9a3..a518bb6ec05d01aa953173c9c98aef69ae31348b 100644
--- a/config_center/zookeeper/impl_test.go
+++ b/config_center/zookeeper/impl_test.go
@@ -99,7 +99,10 @@ func initZkData(group string, t *testing.T) (*zk.TestCluster, *zookeeperDynamicC
 
 func TestGetConfig(t *testing.T) {
 	ts, reg := initZkData("dubbo", t)
-	defer ts.Stop()
+	defer func() {
+		err := ts.Stop()
+		assert.NoError(t, err)
+	}()
 	configs, err := reg.GetProperties(dubboPropertyFileName, config_center.WithGroup("dubbo"))
 	assert.NoError(t, err)
 	m, err := reg.Parser().Parse(configs)
@@ -107,15 +110,21 @@ func TestGetConfig(t *testing.T) {
 	assert.Equal(t, "5s", m["dubbo.consumer.request_timeout"])
 	configs, err = reg.GetProperties(dubboPropertyFileName)
 	assert.Error(t, err)
+	assert.Equal(t, "", configs)
 	configs, err = reg.GetInternalProperty(dubboPropertyFileName)
 	assert.Error(t, err)
+	assert.Equal(t, "", configs)
 	configs, err = reg.GetRule(dubboPropertyFileName)
 	assert.Error(t, err)
+	assert.Equal(t, "", configs)
 }
 
 func TestAddListener(t *testing.T) {
 	ts, reg := initZkData("", t)
-	defer ts.Stop()
+	defer func() {
+		err := ts.Stop()
+		assert.NoError(t, err)
+	}()
 	listener := &mockDataListener{}
 	reg.AddListener(dubboPropertyFileName, listener)
 	listener.wg.Add(1)
@@ -148,7 +157,10 @@ func TestAddListener(t *testing.T) {
 
 func TestRemoveListener(t *testing.T) {
 	ts, reg := initZkData("", t)
-	defer ts.Stop()
+	defer func() {
+		err := ts.Stop()
+		assert.NoError(t, err)
+	}()
 	listener := &mockDataListener{}
 	reg.AddListener(dubboPropertyFileName, listener)
 	listener.wg.Add(1)
@@ -186,7 +198,10 @@ func TestZookeeperDynamicConfigurationPublishConfig(t *testing.T) {
 	customGroup := "Custom Group"
 	key := "myKey"
 	ts, zk := initZkData(config_center.DEFAULT_GROUP, t)
-	defer ts.Stop()
+	defer func() {
+		err := ts.Stop()
+		assert.NoError(t, err)
+	}()
 	err := zk.PublishConfig(key, customGroup, value)
 	assert.Nil(t, err)
 	result, err := zk.GetInternalProperty("myKey", config_center.WithGroup(customGroup))
diff --git a/contributing.md b/contributing.md
index 51301511e01c12e388edf574e5c8660ad4a542a1..0da128190dba2a4feb0f0ef49065942f7dbd312d 100644
--- a/contributing.md
+++ b/contributing.md
@@ -40,7 +40,7 @@ The title format of the pull request `MUST` follow the following rules:
 >- 1 there should be comment for every export func/var.
 >- 2 the comment should begin with function name/var name.
 
-### 3.4 import 
+### 3.4 import
 
 We dubbogo import blocks should be splited into 3 blocks.
 
@@ -53,12 +53,12 @@ import (
 // block 2: the third package
 import (
   "github.com/dubbogo/xxx"
-  
+
   "github.com/RoaringBitmap/roaring"
 )
 
 // block 3: the dubbo-go package
 import (
   "github.com/apache/dubbo-go/common"
-) 
+)
 ```
\ No newline at end of file
diff --git a/doc/apache/apache-release-procedure-20200306.md b/doc/apache/apache-release-procedure-20200306.md
index 3f677ff56b8a97f881ae3d1b9bf842754ddb05ab..a36e2b05b0dca6632c1932bbab7e97e4089e452a 100644
--- a/doc/apache/apache-release-procedure-20200306.md
+++ b/doc/apache/apache-release-procedure-20200306.md
@@ -21,7 +21,7 @@ Apache寮€婧愯蒋浠舵槸鏈夌ぞ鍖洪┍鍔ㄧ殑锛屼负浜嗘彁楂樺彂甯冭蒋浠惰川閲忚€屾寚
 
 ## 1. 鍙戠増鍑嗗
 
-鍙戠増鏂囦欢闇€瑕佺鍚嶏紝闇€瑕佸畨瑁卲gp宸ュ叿. 
+鍙戠増鏂囦欢闇€瑕佺鍚嶏紝闇€瑕佸畨瑁卲gp宸ュ叿.
 
 ```bash
 $ brew install gpg
@@ -167,7 +167,7 @@ $ svn commit  --username wongoo -m "Release dubbo-go-hessian2 v1.4.0-rc1"
 鍙戜换浣曢偖浠堕兘鏄湁涓€瀹氭牸寮忕殑锛屼綘鍔犲叆绀惧尯閭欢鍒楄〃鍚庯紝灏变細鏀跺埌寰堝杩欐牱鐨勯偖浠讹紝澶氱湅鐪嬪氨鐭ラ亾浜嗭紝鍏蜂綋閭欢鑼冩湰鍙傝€冩枃绔犲悗闈㈢殑閭欢鑼冩湰銆�
 
 鍙戝畬銆怴OTE銆戦偖浠讹紝绉佷笅娌熼€氱兢閲岄潰璇峰ぇ浣琍MC鎶曠エ銆�
-PMC鎶曠エ浼氬浣犱笂浼犳墦鍖呮枃浠惰繘琛岀浉鍏虫鏌�, 
+PMC鎶曠エ浼氬浣犱笂浼犳墦鍖呮枃浠惰繘琛岀浉鍏虫鏌�,
 璇︾粏鍙互浜嗚В瀛靛寲涓殑椤圭洰鍙戝竷瀹屾暣鐨勬鏌ラ」鍙傝€冿細 https://cwiki.apache.org/confluence/display/INCUBATOR2/IncubatorReleaseChecklist
 
 鏀跺埌3涓猙inding閭欢涓旇秴杩�72灏忔椂鍚庯紝灏卞彲浠ュ彂 鎶曠エ缁撴灉 [RESULT] [VOTE] 閭欢浜嗐€�
@@ -185,7 +185,7 @@ PMC鎶曠エ浼氬浣犱笂浼犳墦鍖呮枃浠惰繘琛岀浉鍏虫鏌�,
 
 ## 5. 鍙戝竷鐗堟湰
 
-褰撴寮忓彂甯冩姇绁ㄦ垚鍔熷悗锛屽厛鍙慬Result]閭欢锛岀劧鍚庡氨鍑嗗 release package銆� 
+褰撴寮忓彂甯冩姇绁ㄦ垚鍔熷悗锛屽厛鍙慬Result]閭欢锛岀劧鍚庡氨鍑嗗 release package銆�
 灏嗕箣鍓嶅湪dev涓嬪彂甯冪殑瀵瑰簲rc鏂囦欢澶逛笅鐨勬簮鐮佸寘銆佺鍚嶆枃浠跺拰hash鏂囦欢鎷疯礉鍒板彟涓€涓洰褰� v1.4.0锛�
 娉ㄦ剰鏂囦欢鍚嶅瓧涓笉瑕乺cxx (鍙互rename锛屼絾涓嶈閲嶆柊璁$畻绛惧悕锛宧ash鍙互閲嶆柊璁$畻锛岀粨鏋滀笉浼氬彉)銆�
 
@@ -253,7 +253,7 @@ Hello Dubbo/Dubbogo Community,
  [ ] +1 approve
  [ ] +0 no opinion
  [ ] -1 disapprove with the reason
- 
+
  Thanks,
  The Apache Dubbo-go Team
  ```
@@ -284,7 +284,7 @@ between text And link. I suggest add one to make it looks better.  <--- 涓€浜�
 I checked the following items:
 
 [v] Are release files in correct location?                    <-- 鍙戝竷鏂囦欢鐩綍鏄惁姝g‘
-[v] Do release files have the word incubating in their name?  
+[v] Do release files have the word incubating in their name?
 [v] Are the digital signature and hashes correct?             <-- 绛惧悕銆乭ash鏄惁姝g‘
 [v] Do LICENSE and NOTICE files exists?
 [v] Is the LICENSE and NOTICE text correct?                   <-- 鍗忚鏂囨湰鏄惁姝g‘
diff --git a/doc/pic/misc/dubbogo-dingding.png b/doc/pic/misc/dubbogo-dingding.png
new file mode 100644
index 0000000000000000000000000000000000000000..dc27d4ecce94a095e2eb70f97446c76c5b8537da
Binary files /dev/null and b/doc/pic/misc/dubbogo-dingding.png differ
diff --git a/filter/access_key.go b/filter/access_key.go
index 4801d64fe46461424c5dac5aef2eebc719ee19c4..f38764bcea9fd1fc2dd5b0e7028aaf21a2c92c92 100644
--- a/filter/access_key.go
+++ b/filter/access_key.go
@@ -26,7 +26,7 @@ import (
 type AccessKeyPair struct {
 	AccessKey    string `yaml:"accessKey"   json:"accessKey,omitempty" property:"accessKey"`
 	SecretKey    string `yaml:"secretKey"   json:"secretKey,omitempty" property:"secretKey"`
-	ConsumerSide string `yaml:"consumerSide"   json:"ConsumerSide,consumerSide" property:"consumerSide"`
+	ConsumerSide string `yaml:"consumerSide"   json:"consumerSide,omitempty" property:"consumerSide"`
 	ProviderSide string `yaml:"providerSide"   json:"providerSide,omitempty" property:"providerSide"`
 	Creator      string `yaml:"creator"   json:"creator,omitempty" property:"creator"`
 	Options      string `yaml:"options"   json:"options,omitempty" property:"options"`
diff --git a/filter/filter.go b/filter/filter.go
index 804bf3b9df8040c6377648f150c25d421b29b93d..f17c1a231e53e9a3df48072c851cbb26b42a04b4 100644
--- a/filter/filter.go
+++ b/filter/filter.go
@@ -20,6 +20,7 @@ package filter
 import (
 	"context"
 )
+
 import (
 	"github.com/apache/dubbo-go/protocol"
 )
diff --git a/filter/filter_impl/access_log_filter.go b/filter/filter_impl/access_log_filter.go
index 6eaf9cb00bafe8fb0d4b9f8cda50e6bc7115461b..167b5edd804fd5b4b319e86d13815d1b4f698e1c 100644
--- a/filter/filter_impl/access_log_filter.go
+++ b/filter/filter_impl/access_log_filter.go
@@ -105,8 +105,12 @@ func (ef *AccessLogFilter) logIntoChannel(accessLogData AccessLogData) {
 func (ef *AccessLogFilter) buildAccessLogData(_ protocol.Invoker, invocation protocol.Invocation) map[string]string {
 	dataMap := make(map[string]string, 16)
 	attachments := invocation.Attachments()
-	if v, ok := attachments[constant.INTERFACE_KEY]; ok && v != nil {
-		dataMap[constant.INTERFACE_KEY] = v.(string)
+	itf := attachments[constant.INTERFACE_KEY]
+	if itf == nil || len(itf.(string)) == 0 {
+		itf = attachments[constant.PATH_KEY]
+	}
+	if itf != nil {
+		dataMap[constant.INTERFACE_KEY] = itf.(string)
 	}
 	if v, ok := attachments[constant.METHOD_KEY]; ok && v != nil {
 		dataMap[constant.METHOD_KEY] = v.(string)
diff --git a/filter/filter_impl/access_log_filter_test.go b/filter/filter_impl/access_log_filter_test.go
index a3a6151aa1b6a933c57543248f3703125fa356d9..9c4b947db4adbe0a9490f4b13964632028469d18 100644
--- a/filter/filter_impl/access_log_filter_test.go
+++ b/filter/filter_impl/access_log_filter_test.go
@@ -77,6 +77,6 @@ func TestAccessLogFilterInvokeDefaultConfig(t *testing.T) {
 func TestAccessLogFilterOnResponse(t *testing.T) {
 	result := &protocol.RPCResult{}
 	accessLogFilter := GetAccessLogFilter()
-	response := accessLogFilter.OnResponse(nil, result, nil, nil)
+	response := accessLogFilter.OnResponse(context.TODO(), result, nil, nil)
 	assert.Equal(t, result, response)
 }
diff --git a/filter/filter_impl/active_filter_test.go b/filter/filter_impl/active_filter_test.go
index 9837a49c72e28c7a7209f8af6059bdc30c222cc2..2397503dc8f46381a131bed6f924d465a71a9193 100644
--- a/filter/filter_impl/active_filter_test.go
+++ b/filter/filter_impl/active_filter_test.go
@@ -37,7 +37,7 @@ import (
 )
 
 func TestActiveFilterInvoke(t *testing.T) {
-	invoc := invocation.NewRPCInvocation("test", []interface{}{"OK"}, make(map[string]interface{}, 0))
+	invoc := invocation.NewRPCInvocation("test", []interface{}{"OK"}, make(map[string]interface{}))
 	url, _ := common.NewURL("dubbo://192.168.10.10:20000/com.ikurento.user.UserProvider")
 	filter := ActiveFilter{}
 	ctrl := gomock.NewController(t)
@@ -65,7 +65,7 @@ func TestActiveFilterOnResponse(t *testing.T) {
 	result := &protocol.RPCResult{
 		Err: errors.New("test"),
 	}
-	filter.OnResponse(nil, result, invoker, invoc)
+	filter.OnResponse(context.TODO(), result, invoker, invoc)
 	methodStatus := protocol.GetMethodStatus(url, "test")
 	urlStatus := protocol.GetURLStatus(url)
 
diff --git a/filter/filter_impl/auth/default_authenticator.go b/filter/filter_impl/auth/default_authenticator.go
index 5b86fc148e42b6364bcb0752c31bfbbc3cfa2b9d..7c7131c9cf1a4abba7b2ec1b4282b49b15f3c8b9 100644
--- a/filter/filter_impl/auth/default_authenticator.go
+++ b/filter/filter_impl/auth/default_authenticator.go
@@ -69,7 +69,7 @@ func getSignature(url *common.URL, invocation protocol.Invocation, secrectKey st
 	requestString := fmt.Sprintf(constant.SIGNATURE_STRING_FORMAT,
 		url.ColonSeparatedKey(), invocation.MethodName(), secrectKey, currentTime)
 	var signature string
-	if parameterEncrypt := url.GetParamBool(constant.PARAMTER_SIGNATURE_ENABLE_KEY, false); parameterEncrypt {
+	if parameterEncrypt := url.GetParamBool(constant.PARAMETER_SIGNATURE_ENABLE_KEY, false); parameterEncrypt {
 		var err error
 		if signature, err = SignWithParams(invocation.Arguments(), requestString, secrectKey); err != nil {
 			// TODO
diff --git a/filter/filter_impl/auth/default_authenticator_test.go b/filter/filter_impl/auth/default_authenticator_test.go
index 37c7e9d1837a183e72db1134506cc3f89611ac76..d915b6a16ee5ccd15a390059d74e108bdf4c2bce 100644
--- a/filter/filter_impl/auth/default_authenticator_test.go
+++ b/filter/filter_impl/auth/default_authenticator_test.go
@@ -39,7 +39,7 @@ func TestDefaultAuthenticator_Authenticate(t *testing.T) {
 	secret := "dubbo-sk"
 	access := "dubbo-ak"
 	testurl, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider?interface=com.ikurento.user.UserProvider&group=gg&version=2.6.0")
-	testurl.SetParam(constant.PARAMTER_SIGNATURE_ENABLE_KEY, "true")
+	testurl.SetParam(constant.PARAMETER_SIGNATURE_ENABLE_KEY, "true")
 	testurl.SetParam(constant.ACCESS_KEY_ID_KEY, access)
 	testurl.SetParam(constant.SECRET_ACCESS_KEY_KEY, secret)
 	parmas := []interface{}{"OK", struct {
@@ -77,7 +77,7 @@ func TestDefaultAuthenticator_Sign(t *testing.T) {
 	testurl, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider?application=test&interface=com.ikurento.user.UserProvider&group=gg&version=2.6.0")
 	testurl.SetParam(constant.ACCESS_KEY_ID_KEY, "akey")
 	testurl.SetParam(constant.SECRET_ACCESS_KEY_KEY, "skey")
-	testurl.SetParam(constant.PARAMTER_SIGNATURE_ENABLE_KEY, "false")
+	testurl.SetParam(constant.PARAMETER_SIGNATURE_ENABLE_KEY, "false")
 	inv := invocation.NewRPCInvocation("test", []interface{}{"OK"}, nil)
 	_ = authenticator.Sign(inv, testurl)
 	assert.NotEqual(t, inv.AttachmentsByKey(constant.REQUEST_SIGNATURE_KEY, ""), "")
@@ -113,12 +113,13 @@ func Test_getAccessKeyPairFailed(t *testing.T) {
 		common.WithParamsValue(constant.SECRET_ACCESS_KEY_KEY, "skey"),
 		common.WithParamsValue(constant.ACCESS_KEY_ID_KEY, "akey"), common.WithParamsValue(constant.ACCESS_KEY_STORAGE_KEY, "dubbo"))
 	_, e = getAccessKeyPair(invcation, testurl)
+	assert.NoError(t, e)
 
 }
 
 func Test_getSignatureWithinParams(t *testing.T) {
 	testurl, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider?interface=com.ikurento.user.UserProvider&group=gg&version=2.6.0")
-	testurl.SetParam(constant.PARAMTER_SIGNATURE_ENABLE_KEY, "true")
+	testurl.SetParam(constant.PARAMETER_SIGNATURE_ENABLE_KEY, "true")
 	inv := invocation.NewRPCInvocation("test", []interface{}{"OK"}, map[string]interface{}{
 		"": "",
 	})
@@ -134,7 +135,7 @@ func Test_getSignatureWithinParams(t *testing.T) {
 
 func Test_getSignature(t *testing.T) {
 	testurl, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider?interface=com.ikurento.user.UserProvider&group=gg&version=2.6.0")
-	testurl.SetParam(constant.PARAMTER_SIGNATURE_ENABLE_KEY, "false")
+	testurl.SetParam(constant.PARAMETER_SIGNATURE_ENABLE_KEY, "false")
 	inv := invocation.NewRPCInvocation("test", []interface{}{"OK"}, nil)
 	secret := "dubbo"
 	current := strconv.Itoa(int(time.Now().Unix() * 1000))
diff --git a/filter/filter_impl/auth/sign_util.go b/filter/filter_impl/auth/sign_util.go
index 45170bb8117284275a87a3a57d14ce68d6cc4e9c..4c12c762ed6715af551f6e37c251cf095bb43dc4 100644
--- a/filter/filter_impl/auth/sign_util.go
+++ b/filter/filter_impl/auth/sign_util.go
@@ -26,6 +26,10 @@ import (
 	"strings"
 )
 
+import (
+	"github.com/apache/dubbo-go/common/logger"
+)
+
 // Sign gets a signature string with given bytes
 func Sign(metadata, key string) string {
 	return doSign([]byte(metadata), key)
@@ -33,7 +37,7 @@ func Sign(metadata, key string) string {
 
 // SignWithParams returns a signature with giving params and metadata.
 func SignWithParams(params []interface{}, metadata, key string) (string, error) {
-	if params == nil || len(params) == 0 {
+	if len(params) == 0 {
 		return Sign(metadata, key), nil
 	}
 
@@ -56,7 +60,9 @@ func toBytes(data []interface{}) ([]byte, error) {
 
 func doSign(bytes []byte, key string) string {
 	mac := hmac.New(sha256.New, []byte(key))
-	mac.Write(bytes)
+	if _, err := mac.Write(bytes); err != nil {
+		logger.Error(err)
+	}
 	signature := mac.Sum(nil)
 	return base64.URLEncoding.EncodeToString(signature)
 }
diff --git a/filter/filter_impl/execute_limit_filter.go b/filter/filter_impl/execute_limit_filter.go
index 5fc309cfb49fbeef5e933a84c1b80654087da701..35611611c8a716c3799d85e4c31fd3440b3611ef 100644
--- a/filter/filter_impl/execute_limit_filter.go
+++ b/filter/filter_impl/execute_limit_filter.go
@@ -84,7 +84,7 @@ func (ef *ExecuteLimitFilter) Invoke(ctx context.Context, invoker protocol.Invok
 	methodConfigPrefix := "methods." + invocation.MethodName() + "."
 	ivkURL := invoker.GetUrl()
 	limitTarget := ivkURL.ServiceKey()
-	limitRateConfig := constant.DEFAULT_EXECUTE_LIMIT
+	var limitRateConfig string
 
 	methodLevelConfig := ivkURL.GetParam(methodConfigPrefix+constant.EXECUTE_LIMIT_KEY, "")
 	if len(methodLevelConfig) > 0 {
diff --git a/filter/filter_impl/execute_limit_filter_test.go b/filter/filter_impl/execute_limit_filter_test.go
index 2aebcaa8fa62278da3092d6359d2a01571be37d0..682f8fa8b475348624a33d44d9a08190fe270fa8 100644
--- a/filter/filter_impl/execute_limit_filter_test.go
+++ b/filter/filter_impl/execute_limit_filter_test.go
@@ -36,7 +36,7 @@ import (
 
 func TestExecuteLimitFilterInvokeIgnored(t *testing.T) {
 	methodName := "hello"
-	invoc := invocation.NewRPCInvocation(methodName, []interface{}{"OK"}, make(map[string]interface{}, 0))
+	invoc := invocation.NewRPCInvocation(methodName, []interface{}{"OK"}, make(map[string]interface{}))
 
 	invokeUrl := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
@@ -51,7 +51,7 @@ func TestExecuteLimitFilterInvokeIgnored(t *testing.T) {
 
 func TestExecuteLimitFilterInvokeConfigureError(t *testing.T) {
 	methodName := "hello1"
-	invoc := invocation.NewRPCInvocation(methodName, []interface{}{"OK"}, make(map[string]interface{}, 0))
+	invoc := invocation.NewRPCInvocation(methodName, []interface{}{"OK"}, make(map[string]interface{}))
 
 	invokeUrl := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
@@ -68,7 +68,7 @@ func TestExecuteLimitFilterInvokeConfigureError(t *testing.T) {
 
 func TestExecuteLimitFilterInvoke(t *testing.T) {
 	methodName := "hello1"
-	invoc := invocation.NewRPCInvocation(methodName, []interface{}{"OK"}, make(map[string]interface{}, 0))
+	invoc := invocation.NewRPCInvocation(methodName, []interface{}{"OK"}, make(map[string]interface{}))
 
 	invokeUrl := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
diff --git a/filter/filter_impl/generic_filter.go b/filter/filter_impl/generic_filter.go
index 36b4b13186361d85beea0625eeda1ad58c3f2dca..cf307d0ad865da704ae048f21606704fd4204cb3 100644
--- a/filter/filter_impl/generic_filter.go
+++ b/filter/filter_impl/generic_filter.go
@@ -122,15 +122,15 @@ func struct2MapAll(obj interface{}) interface{} {
 		}
 		return newTemps
 	} else if t.Kind() == reflect.Map {
-		var newTempMap = make(map[string]interface{}, v.Len())
+		var newTempMap = make(map[interface{}]interface{}, v.Len())
 		iter := v.MapRange()
 		for iter.Next() {
-			mapK := iter.Key().String()
 			if !iter.Value().CanInterface() {
 				continue
 			}
+			key := iter.Key()
 			mapV := iter.Value().Interface()
-			newTempMap[mapK] = struct2MapAll(mapV)
+			newTempMap[convertMapKey(key)] = struct2MapAll(mapV)
 		}
 		return newTempMap
 	} else {
@@ -138,6 +138,19 @@ func struct2MapAll(obj interface{}) interface{} {
 	}
 }
 
+func convertMapKey(key reflect.Value) interface{} {
+	switch key.Kind() {
+	case reflect.Bool, reflect.Int, reflect.Int8,
+		reflect.Int16, reflect.Int32, reflect.Int64,
+		reflect.Uint, reflect.Uint8, reflect.Uint16,
+		reflect.Uint32, reflect.Uint64, reflect.Float32,
+		reflect.Float64, reflect.String:
+		return key.Interface()
+	default:
+		return key.String()
+	}
+}
+
 func setInMap(m map[string]interface{}, structField reflect.StructField, value interface{}) (result map[string]interface{}) {
 	result = m
 	if tagName := structField.Tag.Get("m"); tagName == "" {
diff --git a/filter/filter_impl/generic_filter_test.go b/filter/filter_impl/generic_filter_test.go
index 40cf743106821f12425d1abe6dbc82bad0559917..4203dd6dd816c9a4cfe3c2142551dad7baa7dbf2 100644
--- a/filter/filter_impl/generic_filter_test.go
+++ b/filter/filter_impl/generic_filter_test.go
@@ -98,15 +98,17 @@ func TestStruct2MapAllSlice(t *testing.T) {
 
 func TestStruct2MapAllMap(t *testing.T) {
 	var testData struct {
-		AaAa string
-		Baba map[string]interface{}
-		CaCa map[string]string
-		DdDd map[string]interface{}
+		AaAa   string
+		Baba   map[string]interface{}
+		CaCa   map[string]string
+		DdDd   map[string]interface{}
+		IntMap map[int]interface{}
 	}
 	testData.AaAa = "aaaa"
 	testData.Baba = make(map[string]interface{})
 	testData.CaCa = make(map[string]string)
 	testData.DdDd = nil
+	testData.IntMap = make(map[int]interface{})
 
 	testData.Baba["kk"] = 1
 	var structData struct {
@@ -117,14 +119,19 @@ func TestStruct2MapAllMap(t *testing.T) {
 	testData.Baba["nil"] = nil
 	testData.CaCa["k1"] = "v1"
 	testData.CaCa["kv2"] = "v2"
+	testData.IntMap[1] = 1
 	m := struct2MapAll(testData)
 
 	assert.Equal(t, reflect.Map, reflect.TypeOf(m).Kind())
-	assert.Equal(t, reflect.String, reflect.TypeOf(m.(map[string]interface{})["aaAa"]).Kind())
-	assert.Equal(t, reflect.Map, reflect.TypeOf(m.(map[string]interface{})["baba"]).Kind())
-	assert.Equal(t, reflect.Map, reflect.TypeOf(m.(map[string]interface{})["baba"].(map[string]interface{})["struct"]).Kind())
-	assert.Equal(t, "str", m.(map[string]interface{})["baba"].(map[string]interface{})["struct"].(map[string]interface{})["str"])
-	assert.Equal(t, nil, m.(map[string]interface{})["baba"].(map[string]interface{})["nil"])
-	assert.Equal(t, reflect.Map, reflect.TypeOf(m.(map[string]interface{})["caCa"]).Kind())
-	assert.Equal(t, reflect.Map, reflect.TypeOf(m.(map[string]interface{})["ddDd"]).Kind())
+	mappedStruct := m.(map[string]interface{})
+	assert.Equal(t, reflect.String, reflect.TypeOf(mappedStruct["aaAa"]).Kind())
+	assert.Equal(t, reflect.Map, reflect.TypeOf(mappedStruct["baba"]).Kind())
+	assert.Equal(t, reflect.Map, reflect.TypeOf(mappedStruct["baba"].(map[interface{}]interface{})["struct"]).Kind())
+	assert.Equal(t, "str", mappedStruct["baba"].(map[interface{}]interface{})["struct"].(map[string]interface{})["str"])
+	assert.Equal(t, nil, mappedStruct["baba"].(map[interface{}]interface{})["nil"])
+	assert.Equal(t, reflect.Map, reflect.TypeOf(mappedStruct["caCa"]).Kind())
+	assert.Equal(t, reflect.Map, reflect.TypeOf(mappedStruct["ddDd"]).Kind())
+	intMap := mappedStruct["intMap"]
+	assert.Equal(t, reflect.Map, reflect.TypeOf(intMap).Kind())
+	assert.Equal(t, 1, intMap.(map[interface{}]interface{})[1])
 }
diff --git a/filter/filter_impl/generic_service_filter.go b/filter/filter_impl/generic_service_filter.go
index 3711e68cce67dacfec074a5e44c080a629bce305..89b009b8d136d34ca0fd14548b3ef5536c7234d8 100644
--- a/filter/filter_impl/generic_service_filter.go
+++ b/filter/filter_impl/generic_service_filter.go
@@ -20,7 +20,6 @@ package filter_impl
 import (
 	"context"
 	"reflect"
-	"strings"
 )
 
 import (
@@ -75,7 +74,7 @@ func (ef *GenericServiceFilter) Invoke(ctx context.Context, invoker protocol.Inv
 	url := invoker.GetUrl()
 	methodName = invocation.Arguments()[0].(string)
 	// get service
-	svc := common.ServiceMap.GetService(url.Protocol, strings.TrimPrefix(url.Path, "/"))
+	svc := common.ServiceMap.GetServiceByServiceKey(url.Protocol, url.ServiceKey())
 	// get method
 	method := svc.Method()[methodName]
 	if method == nil {
diff --git a/filter/filter_impl/generic_service_filter_test.go b/filter/filter_impl/generic_service_filter_test.go
index 67819717cf07383373f905ed9420a42cc0bfddb9..c755a2d28080e8c6a56e742181b944d299e493ed 100644
--- a/filter/filter_impl/generic_service_filter_test.go
+++ b/filter/filter_impl/generic_service_filter_test.go
@@ -96,7 +96,7 @@ func TestGenericServiceFilterInvoke(t *testing.T) {
 			hessian.Object("222")},
 	}
 	s := &TestService{}
-	_, _ = common.ServiceMap.Register("TestService", "testprotocol", s)
+	_, _ = common.ServiceMap.Register("com.test.Path", "testprotocol", "", "", s)
 	rpcInvocation := invocation.NewRPCInvocation(methodName, aurguments, nil)
 	filter := GetGenericServiceFilter()
 	url, _ := common.NewURL("testprotocol://127.0.0.1:20000/com.test.Path")
@@ -125,7 +125,7 @@ func TestGenericServiceFilterResponseTestStruct(t *testing.T) {
 	filter := GetGenericServiceFilter()
 	methodName := "$invoke"
 	rpcInvocation := invocation.NewRPCInvocation(methodName, aurguments, nil)
-	r := filter.OnResponse(nil, result, nil, rpcInvocation)
+	r := filter.OnResponse(context.TODO(), result, nil, rpcInvocation)
 	assert.NotNil(t, r.Result())
 	assert.Equal(t, reflect.ValueOf(r.Result()).Kind(), reflect.Map)
 }
@@ -143,7 +143,7 @@ func TestGenericServiceFilterResponseString(t *testing.T) {
 	filter := GetGenericServiceFilter()
 	methodName := "$invoke"
 	rpcInvocation := invocation.NewRPCInvocation(methodName, aurguments, nil)
-	r := filter.OnResponse(nil, result, nil, rpcInvocation)
+	r := filter.OnResponse(context.TODO(), result, nil, rpcInvocation)
 	assert.NotNil(t, r.Result())
 	assert.Equal(t, reflect.ValueOf(r.Result()).Kind(), reflect.String)
 }
diff --git a/filter/filter_impl/graceful_shutdown_filter_test.go b/filter/filter_impl/graceful_shutdown_filter_test.go
index 447a557ad5f508bf444ccae5dacb8a8559c933ea..b16956e01c85b52ec0009f96998a72e2a4314911 100644
--- a/filter/filter_impl/graceful_shutdown_filter_test.go
+++ b/filter/filter_impl/graceful_shutdown_filter_test.go
@@ -39,10 +39,8 @@ import (
 )
 
 func TestGenericFilterInvoke(t *testing.T) {
-	invoc := invocation.NewRPCInvocation("GetUser", []interface{}{"OK"}, make(map[string]interface{}, 0))
-
-	invokeUrl := common.NewURLWithOptions(
-		common.WithParams(url.Values{}))
+	invoc := invocation.NewRPCInvocation("GetUser", []interface{}{"OK"}, make(map[string]interface{}))
+	invokeUrl := common.NewURLWithOptions(common.WithParams(url.Values{}))
 
 	shutdownFilter := extension.GetFilter(constant.PROVIDER_SHUTDOWN_FILTER).(*gracefulShutdownFilter)
 
@@ -65,7 +63,8 @@ func TestGenericFilterInvoke(t *testing.T) {
 	shutdownFilter.shutdownConfig = providerConfig.ShutdownConfig
 
 	assert.True(t, shutdownFilter.rejectNewRequest())
-	result = shutdownFilter.OnResponse(nil, nil, protocol.NewBaseInvoker(invokeUrl), invoc)
+	result = shutdownFilter.OnResponse(context.Background(), nil, protocol.NewBaseInvoker(invokeUrl), invoc)
+	assert.Nil(t, result)
 
 	rejectHandler := &common2.OnlyLogRejectedExecutionHandler{}
 	extension.SetRejectedExecutionHandler("mock", func() filter.RejectedExecutionHandler {
diff --git a/filter/filter_impl/seata_filter.go b/filter/filter_impl/seata_filter.go
index 7722d2954f905ece4a1b48628c31c06debf45614..b7b7b0e94b4633dda10278e9674566a82701b7f6 100644
--- a/filter/filter_impl/seata_filter.go
+++ b/filter/filter_impl/seata_filter.go
@@ -23,6 +23,7 @@ import (
 )
 
 import (
+	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/common/extension"
 	"github.com/apache/dubbo-go/common/logger"
 	"github.com/apache/dubbo-go/filter"
@@ -30,12 +31,12 @@ import (
 )
 
 const (
-	SEATA     = "seata"
-	SEATA_XID = "SEATA_XID"
+	SEATA     = constant.DubboCtxKey("seata")
+	SEATA_XID = constant.DubboCtxKey("SEATA_XID")
 )
 
 func init() {
-	extension.SetFilter(SEATA, getSeataFilter)
+	extension.SetFilter(string(SEATA), getSeataFilter)
 }
 
 // SeataFilter when use seata-golang, use this filter to transfer xid
@@ -45,7 +46,7 @@ type SeataFilter struct{}
 // Invoke Get Xid by attachment key `SEATA_XID`
 func (sf *SeataFilter) Invoke(ctx context.Context, invoker protocol.Invoker, invocation protocol.Invocation) protocol.Result {
 	logger.Infof("invoking seata filter.")
-	xid := invocation.AttachmentsByKey(SEATA_XID, "")
+	xid := invocation.AttachmentsByKey(string(SEATA_XID), "")
 	if strings.TrimSpace(xid) != "" {
 		logger.Debugf("Method: %v,Xid: %v", invocation.MethodName(), xid)
 		return invoker.Invoke(context.WithValue(ctx, SEATA_XID, xid), invocation)
diff --git a/filter/filter_impl/seata_filter_test.go b/filter/filter_impl/seata_filter_test.go
index 45817e95cbd2eaa7365adc8a299523af8310f797..1705eba787f5569064841d6a713ed2f2e428314c 100644
--- a/filter/filter_impl/seata_filter_test.go
+++ b/filter/filter_impl/seata_filter_test.go
@@ -50,7 +50,7 @@ func TestSeataFilter_Invoke(t *testing.T) {
 	filter := getSeataFilter()
 	result := filter.Invoke(context.Background(), &testMockSeataInvoker{}, invocation.NewRPCInvocation("$echo",
 		[]interface{}{"OK"}, map[string]interface{}{
-			SEATA_XID: "10.30.21.227:8091:2000047792",
+			string(SEATA_XID): "10.30.21.227:8091:2000047792",
 		}))
 	assert.Equal(t, "10.30.21.227:8091:2000047792", result.Result())
 }
diff --git a/filter/filter_impl/sentinel_filter.go b/filter/filter_impl/sentinel_filter.go
index aec814d70a5f1dfc9e6688b9731f725f43443b93..1de27adbac1808dbbbf8017f0119077752191d6f 100644
--- a/filter/filter_impl/sentinel_filter.go
+++ b/filter/filter_impl/sentinel_filter.go
@@ -38,13 +38,15 @@ import (
 	"github.com/apache/dubbo-go/protocol"
 )
 
+// Integrate Sentinel Go MUST HAVE:
+// 1. Must initialize Sentinel Go run environment,
+//     refer to https://github.com/alibaba/sentinel-golang/blob/master/api/init.go
+// 2. Register rules for resources user want to guard
+
 func init() {
 	extension.SetFilter(SentinelProviderFilterName, GetSentinelProviderFilter)
 	extension.SetFilter(SentinelConsumerFilterName, GetSentinelConsumerFilter)
 
-	if err := sentinel.InitDefault(); err != nil {
-		logger.Errorf("[Sentinel Filter] fail to initialize Sentinel")
-	}
 	if err := logging.ResetGlobalLogger(DubboLoggerWrapper{Logger: logger.GetLogger()}); err != nil {
 		logger.Errorf("[Sentinel Filter] fail to ingest dubbo logger into sentinel")
 	}
@@ -54,20 +56,36 @@ type DubboLoggerWrapper struct {
 	logger.Logger
 }
 
-func (d DubboLoggerWrapper) Fatal(v ...interface{}) {
-	d.Logger.Error(v...)
+func (d DubboLoggerWrapper) Debug(msg string, keysAndValues ...interface{}) {
+	d.Logger.Debug(logging.AssembleMsg(logging.GlobalCallerDepth, "DEBUG", msg, nil, keysAndValues))
+}
+
+func (d DubboLoggerWrapper) DebugEnabled() bool {
+	return true
+}
+
+func (d DubboLoggerWrapper) Info(msg string, keysAndValues ...interface{}) {
+	d.Logger.Info(logging.AssembleMsg(logging.GlobalCallerDepth, "INFO", msg, nil, keysAndValues))
 }
 
-func (d DubboLoggerWrapper) Fatalf(format string, v ...interface{}) {
-	d.Logger.Errorf(format, v...)
+func (d DubboLoggerWrapper) InfoEnabled() bool {
+	return true
+}
+
+func (d DubboLoggerWrapper) Warn(msg string, keysAndValues ...interface{}) {
+	d.Logger.Warn(logging.AssembleMsg(logging.GlobalCallerDepth, "WARN", msg, nil, keysAndValues))
 }
 
-func (d DubboLoggerWrapper) Panic(v ...interface{}) {
-	d.Logger.Error(v...)
+func (d DubboLoggerWrapper) WarnEnabled() bool {
+	return true
 }
 
-func (d DubboLoggerWrapper) Panicf(format string, v ...interface{}) {
-	d.Logger.Errorf(format, v...)
+func (d DubboLoggerWrapper) Error(err error, msg string, keysAndValues ...interface{}) {
+	d.Logger.Warn(logging.AssembleMsg(logging.GlobalCallerDepth, "ERROR", msg, err, keysAndValues))
+}
+
+func (d DubboLoggerWrapper) ErrorEnabled() bool {
+	return true
 }
 
 func GetSentinelConsumerFilter() filter.Filter {
@@ -187,8 +205,8 @@ const (
 	DefaultProviderPrefix = "dubbo:provider:"
 	DefaultConsumerPrefix = "dubbo:consumer:"
 
-	MethodEntryKey    = "$$sentinelMethodEntry"
-	InterfaceEntryKey = "$$sentinelInterfaceEntry"
+	MethodEntryKey    = constant.DubboCtxKey("$$sentinelMethodEntry")
+	InterfaceEntryKey = constant.DubboCtxKey("$$sentinelInterfaceEntry")
 )
 
 func getResourceName(invoker protocol.Invoker, invocation protocol.Invocation, prefix string) (interfaceResourceName, methodResourceName string) {
diff --git a/filter/filter_impl/sentinel_filter_test.go b/filter/filter_impl/sentinel_filter_test.go
index e8d481b40640bb09e9e60e922d4592603dea8f3a..c6b6d4280f08099ce3eef8bf1e5a3c37e9e67c59 100644
--- a/filter/filter_impl/sentinel_filter_test.go
+++ b/filter/filter_impl/sentinel_filter_test.go
@@ -50,11 +50,11 @@ func TestSentinelFilter_QPS(t *testing.T) {
 
 	_, err = flow.LoadRules([]*flow.Rule{
 		{
-			Resource:               interfaceResourceName,
-			MetricType:             flow.QPS,
+			Resource: interfaceResourceName,
+			//MetricType:             flow.QPS,
 			TokenCalculateStrategy: flow.Direct,
 			ControlBehavior:        flow.Reject,
-			Count:                  100,
+			Threshold:              100,
 			RelationStrategy:       flow.CurrentResource,
 		},
 	})
diff --git a/filter/filter_impl/token_filter_test.go b/filter/filter_impl/token_filter_test.go
index 9ef8c98d6868c3d545fe963ab13eb3f27bb88cd0..024ae2ae3142b1e193d6a24001f51f00badf537a 100644
--- a/filter/filter_impl/token_filter_test.go
+++ b/filter/filter_impl/token_filter_test.go
@@ -40,7 +40,7 @@ func TestTokenFilterInvoke(t *testing.T) {
 	url := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
 		common.WithParamsValue(constant.TOKEN_KEY, "ori_key"))
-	attch := make(map[string]interface{}, 0)
+	attch := make(map[string]interface{})
 	attch[constant.TOKEN_KEY] = "ori_key"
 	result := filter.Invoke(context.Background(),
 		protocol.NewBaseInvoker(url),
@@ -54,7 +54,7 @@ func TestTokenFilterInvokeEmptyToken(t *testing.T) {
 	filter := GetTokenFilter()
 
 	testUrl := common.URL{}
-	attch := make(map[string]interface{}, 0)
+	attch := make(map[string]interface{})
 	attch[constant.TOKEN_KEY] = "ori_key"
 	result := filter.Invoke(context.Background(), protocol.NewBaseInvoker(&testUrl), invocation.NewRPCInvocation("MethodName", []interface{}{"OK"}, attch))
 	assert.Nil(t, result.Error())
@@ -67,7 +67,7 @@ func TestTokenFilterInvokeEmptyAttach(t *testing.T) {
 	testUrl := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
 		common.WithParamsValue(constant.TOKEN_KEY, "ori_key"))
-	attch := make(map[string]interface{}, 0)
+	attch := make(map[string]interface{})
 	result := filter.Invoke(context.Background(), protocol.NewBaseInvoker(testUrl), invocation.NewRPCInvocation("MethodName", []interface{}{"OK"}, attch))
 	assert.NotNil(t, result.Error())
 }
@@ -78,7 +78,7 @@ func TestTokenFilterInvokeNotEqual(t *testing.T) {
 	testUrl := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
 		common.WithParamsValue(constant.TOKEN_KEY, "ori_key"))
-	attch := make(map[string]interface{}, 0)
+	attch := make(map[string]interface{})
 	attch[constant.TOKEN_KEY] = "err_key"
 	result := filter.Invoke(context.Background(),
 		protocol.NewBaseInvoker(testUrl), invocation.NewRPCInvocation("MethodName", []interface{}{"OK"}, attch))
diff --git a/filter/filter_impl/tps/tps_limit_sliding_window_strategy.go b/filter/filter_impl/tps/tps_limit_sliding_window_strategy.go
index cbbba19fff65be222cb895dcbe9b2e4d02082985..bc78f6471bda2c87d9e82eccdf73700547454340 100644
--- a/filter/filter_impl/tps/tps_limit_sliding_window_strategy.go
+++ b/filter/filter_impl/tps/tps_limit_sliding_window_strategy.go
@@ -54,7 +54,7 @@ type SlidingWindowTpsLimitStrategyImpl struct {
 	queue    *list.List
 }
 
-// IsAllowable determins whether the number of requests within the time window overs the threshold
+// IsAllowable determines whether the number of requests within the time window overs the threshold
 // It is thread-safe.
 func (impl *SlidingWindowTpsLimitStrategyImpl) IsAllowable() bool {
 	impl.mutex.Lock()
diff --git a/filter/filter_impl/tps/tps_limiter_method_service_test.go b/filter/filter_impl/tps/tps_limiter_method_service_test.go
index 7435d9b92ac8270de0244c8a257aec82f9acc9a1..5baa70a5bc4eebe162243a485521543802a51f2c 100644
--- a/filter/filter_impl/tps/tps_limiter_method_service_test.go
+++ b/filter/filter_impl/tps/tps_limiter_method_service_test.go
@@ -22,7 +22,6 @@ import (
 	"testing"
 )
 import (
-	"github.com/apache/dubbo-go/filter"
 	"github.com/golang/mock/gomock"
 	"github.com/stretchr/testify/assert"
 )
@@ -31,12 +30,13 @@ import (
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/common/extension"
+	"github.com/apache/dubbo-go/filter"
 	"github.com/apache/dubbo-go/protocol/invocation"
 )
 
 func TestMethodServiceTpsLimiterImplIsAllowableOnlyServiceLevel(t *testing.T) {
 	methodName := "hello"
-	invoc := invocation.NewRPCInvocation(methodName, []interface{}{"OK"}, make(map[string]interface{}, 0))
+	invoc := invocation.NewRPCInvocation(methodName, []interface{}{"OK"}, make(map[string]interface{}))
 
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()
@@ -63,7 +63,7 @@ func TestMethodServiceTpsLimiterImplIsAllowableOnlyServiceLevel(t *testing.T) {
 
 func TestMethodServiceTpsLimiterImplIsAllowableNoConfig(t *testing.T) {
 	methodName := "hello1"
-	invoc := invocation.NewRPCInvocation(methodName, []interface{}{"OK"}, make(map[string]interface{}, 0))
+	invoc := invocation.NewRPCInvocation(methodName, []interface{}{"OK"}, make(map[string]interface{}))
 	// ctrl := gomock.NewController(t)
 	// defer ctrl.Finish()
 
@@ -80,7 +80,7 @@ func TestMethodServiceTpsLimiterImplIsAllowableNoConfig(t *testing.T) {
 func TestMethodServiceTpsLimiterImplIsAllowableMethodLevelOverride(t *testing.T) {
 	methodName := "hello2"
 	methodConfigPrefix := "methods." + methodName + "."
-	invoc := invocation.NewRPCInvocation(methodName, []interface{}{"OK"}, make(map[string]interface{}, 0))
+	invoc := invocation.NewRPCInvocation(methodName, []interface{}{"OK"}, make(map[string]interface{}))
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()
 
@@ -113,7 +113,7 @@ func TestMethodServiceTpsLimiterImplIsAllowableMethodLevelOverride(t *testing.T)
 func TestMethodServiceTpsLimiterImplIsAllowableBothMethodAndService(t *testing.T) {
 	methodName := "hello3"
 	methodConfigPrefix := "methods." + methodName + "."
-	invoc := invocation.NewRPCInvocation(methodName, []interface{}{"OK"}, make(map[string]interface{}, 0))
+	invoc := invocation.NewRPCInvocation(methodName, []interface{}{"OK"}, make(map[string]interface{}))
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()
 
diff --git a/filter/filter_impl/tps_limit_filter_test.go b/filter/filter_impl/tps_limit_filter_test.go
index 88e778105081129463b68618804bd9204d2f7113..55a3a55fab28efc7c27d9f5ccc4a3ec454bb6d15 100644
--- a/filter/filter_impl/tps_limit_filter_test.go
+++ b/filter/filter_impl/tps_limit_filter_test.go
@@ -44,7 +44,7 @@ func TestTpsLimitFilterInvokeWithNoTpsLimiter(t *testing.T) {
 	invokeUrl := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
 		common.WithParamsValue(constant.TPS_LIMITER_KEY, ""))
-	attch := make(map[string]interface{}, 0)
+	attch := make(map[string]interface{})
 
 	result := tpsFilter.Invoke(context.Background(),
 		protocol.NewBaseInvoker(invokeUrl),
@@ -68,7 +68,7 @@ func TestGenericFilterInvokeWithDefaultTpsLimiter(t *testing.T) {
 	invokeUrl := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
 		common.WithParamsValue(constant.TPS_LIMITER_KEY, constant.DEFAULT_KEY))
-	attch := make(map[string]interface{}, 0)
+	attch := make(map[string]interface{})
 
 	result := tpsFilter.Invoke(context.Background(),
 		protocol.NewBaseInvoker(invokeUrl),
@@ -99,7 +99,7 @@ func TestGenericFilterInvokeWithDefaultTpsLimiterNotAllow(t *testing.T) {
 	invokeUrl := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
 		common.WithParamsValue(constant.TPS_LIMITER_KEY, constant.DEFAULT_KEY))
-	attch := make(map[string]interface{}, 0)
+	attch := make(map[string]interface{})
 
 	result := tpsFilter.Invoke(context.Background(),
 		protocol.NewBaseInvoker(
diff --git a/filter/filter_impl/tracing_filter.go b/filter/filter_impl/tracing_filter.go
index b8058aa601af98b5416da882321546675459c413..dcdbe5b30e3c288462e9078df234243435ca86c6 100644
--- a/filter/filter_impl/tracing_filter.go
+++ b/filter/filter_impl/tracing_filter.go
@@ -83,7 +83,7 @@ func (tf *tracingFilter) Invoke(ctx context.Context, invoker protocol.Invoker, i
 	}()
 
 	result := invoker.Invoke(spanCtx, invocation)
-	span.SetTag(successKey, result.Error() != nil)
+	span.SetTag(successKey, result.Error() == nil)
 	if result.Error() != nil {
 		span.LogFields(log.String(errorKey, result.Error().Error()))
 	}
diff --git a/filter/filter_impl/tracing_filter_test.go b/filter/filter_impl/tracing_filter_test.go
index e159b7400d46069018a00a849319423285072dc2..bf96a7d064b3919825d26c505b637f5ea539d9d6 100644
--- a/filter/filter_impl/tracing_filter_test.go
+++ b/filter/filter_impl/tracing_filter_test.go
@@ -57,6 +57,6 @@ func TestTracingFilterInvoke(t *testing.T) {
 	tf.Invoke(ctx, invoker, inv)
 
 	// has remote ctx
-	ctx = context.WithValue(context.Background(), constant.TRACING_REMOTE_SPAN_CTX, span.Context())
+	ctx = context.WithValue(context.Background(), constant.DubboCtxKey(constant.TRACING_REMOTE_SPAN_CTX), span.Context())
 	tf.Invoke(ctx, invoker, inv)
 }
diff --git a/go.mod b/go.mod
index b1a37df9fb737fe1c6c4dd235a9ee9c26a4863ac..bb456a7ec13154db4459d3a03dce28e931a11400 100644
--- a/go.mod
+++ b/go.mod
@@ -1,21 +1,23 @@
 module github.com/apache/dubbo-go
 
+go 1.13
+
 require (
 	github.com/NYTimes/gziphandler v1.1.1 // indirect
 	github.com/RoaringBitmap/roaring v0.5.5
 	github.com/Workiva/go-datastructures v1.0.52
 	github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5
-	github.com/alibaba/sentinel-golang v0.6.2
-	github.com/apache/dubbo-getty v1.3.10
-	github.com/apache/dubbo-go-hessian2 v1.7.0
+	github.com/alibaba/sentinel-golang v1.0.2
+	github.com/apache/dubbo-getty v1.4.3
+	github.com/apache/dubbo-go-hessian2 v1.8.2
 	github.com/coreos/etcd v3.3.25+incompatible
 	github.com/creasty/defaults v1.5.1
 	github.com/dubbogo/go-zookeeper v1.0.2
-	github.com/dubbogo/gost v1.9.2
+	github.com/dubbogo/gost v1.11.0
 	github.com/elazarl/go-bindata-assetfs v1.0.0 // indirect
-	github.com/emicklei/go-restful/v3 v3.0.0
+	github.com/emicklei/go-restful/v3 v3.4.0
 	github.com/frankban/quicktest v1.4.1 // indirect
-	github.com/fsnotify/fsnotify v1.4.7
+	github.com/fsnotify/fsnotify v1.4.9
 	github.com/go-co-op/gocron v0.1.1
 	github.com/go-resty/resty/v2 v2.3.0
 	github.com/golang/mock v1.4.4
@@ -27,22 +29,23 @@ require (
 	github.com/hashicorp/vault/api v1.0.5-0.20191108163347-bdd38fca2cff // indirect
 	github.com/hashicorp/vault/sdk v0.1.14-0.20191112033314-390e96e22eb2
 	github.com/jinzhu/copier v0.0.0-20190625015134-976e0346caa8
-	github.com/magiconair/properties v1.8.1
-	github.com/mitchellh/mapstructure v1.3.3
+	github.com/magiconair/properties v1.8.4
+	github.com/mitchellh/mapstructure v1.4.1
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd
-	github.com/nacos-group/nacos-sdk-go v1.0.1
+	github.com/nacos-group/nacos-sdk-go v1.0.6
 	github.com/opentracing/opentracing-go v1.2.0
 	github.com/pierrec/lz4 v2.2.6+incompatible // indirect
 	github.com/pkg/errors v0.9.1
-	github.com/prometheus/client_golang v1.1.0
+	github.com/prometheus/client_golang v1.8.0
 	github.com/satori/go.uuid v1.2.1-0.20181028125025-b2ce2384e17b
 	github.com/stretchr/objx v0.2.0 // indirect
-	github.com/stretchr/testify v1.6.1
+	github.com/stretchr/testify v1.7.0
 	github.com/zouyx/agollo/v3 v3.4.5
-	go.uber.org/atomic v1.6.0
+	go.uber.org/atomic v1.7.0
 	go.uber.org/zap v1.16.0
+	golang.org/x/sys v0.0.0-20201223074533-0d417f636930 // indirect
 	google.golang.org/grpc v1.26.0
-	gopkg.in/yaml.v2 v2.2.8
+	gopkg.in/yaml.v2 v2.4.0
 	k8s.io/api v0.16.9
 	k8s.io/apimachinery v0.16.9
 	k8s.io/client-go v0.16.9
@@ -50,9 +53,7 @@ require (
 )
 
 replace (
+	github.com/coreos/bbolt => go.etcd.io/bbolt v1.3.4
 	github.com/envoyproxy/go-control-plane => github.com/envoyproxy/go-control-plane v0.8.0
 	github.com/shirou/gopsutil => github.com/shirou/gopsutil v0.0.0-20181107111621-48177ef5f880
-	launchpad.net/gocheck => github.com/go-check/check v0.0.0-20140225173054-eb6ee6f84d0a
 )
-
-go 1.13
diff --git a/go.sum b/go.sum
index 7c0426d9660e6511032ce8d3c98765a5706bd137..aee0ed698689d1c23362e08e0e327675d4daa04a 100644
--- a/go.sum
+++ b/go.sum
@@ -6,36 +6,25 @@ cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxK
 cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
 cloud.google.com/go v0.46.3 h1:AVXDdKsrtX33oR9fbCMu/+c1o8Ofjq6Ku/MInaLVg5Y=
 cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
-cloud.google.com/go v0.50.0 h1:0E3eE8MX426vUOs7aHfI7aN1BrIzzzf4ccKCSfSjGmc=
-cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
 cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
 cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
 cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
-contrib.go.opencensus.io/exporter/ocagent v0.4.12/go.mod h1:450APlNTSR6FrvC3CTRqYosuDstRB9un7SOx2k/9ckA=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-github.com/Azure/azure-sdk-for-go v32.4.0+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
 github.com/Azure/azure-sdk-for-go v40.3.0+incompatible h1:NthZg3psrLxvQLN6rVm07pZ9mv2wvGNaBNGQ3fnPvLE=
 github.com/Azure/azure-sdk-for-go v40.3.0+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
-github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
-github.com/Azure/go-autorest/autorest v0.1.0/go.mod h1:AKyIcETwSUFxIcs/Wnq/C+kwCtlEYGUVd7FPNb2slmg=
-github.com/Azure/go-autorest/autorest v0.5.0/go.mod h1:9HLKlQjVBH6U3oDfsXOeVc56THsLPw1L03yban4xThw=
 github.com/Azure/go-autorest/autorest v0.9.0/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
 github.com/Azure/go-autorest/autorest v0.9.3/go.mod h1:GsRuLYvwzLjjjRoWEIyMUaYq8GNUx2nRB378IPt/1p0=
 github.com/Azure/go-autorest/autorest v0.10.0 h1:mvdtztBqcL8se7MdrUweNieTNi4kfNG6GOJuurQJpuY=
 github.com/Azure/go-autorest/autorest v0.10.0/go.mod h1:/FALq9T/kS7b5J5qsQ+RSTUdAmGFqi0vUdVNNx8q630=
-github.com/Azure/go-autorest/autorest/adal v0.1.0/go.mod h1:MeS4XhScH55IST095THyTxElntu7WqB7pNbZo8Q5G3E=
-github.com/Azure/go-autorest/autorest/adal v0.2.0/go.mod h1:MeS4XhScH55IST095THyTxElntu7WqB7pNbZo8Q5G3E=
 github.com/Azure/go-autorest/autorest/adal v0.5.0/go.mod h1:8Z9fGy2MpX0PvDjB1pEgQTmVqjGhiHBW7RJJEciWzS0=
 github.com/Azure/go-autorest/autorest/adal v0.8.0/go.mod h1:Z6vX6WXXuyieHAXwMj0S6HY6e6wcHn37qQMBQlvY3lc=
 github.com/Azure/go-autorest/autorest/adal v0.8.1/go.mod h1:ZjhuQClTqx435SRJ2iMlOxPYt3d2C/T/7TiQCVZSn3Q=
 github.com/Azure/go-autorest/autorest/adal v0.8.2 h1:O1X4oexUxnZCaEUGsvMnr8ZGj8HI37tNezwY4npRqA0=
 github.com/Azure/go-autorest/autorest/adal v0.8.2/go.mod h1:ZjhuQClTqx435SRJ2iMlOxPYt3d2C/T/7TiQCVZSn3Q=
-github.com/Azure/go-autorest/autorest/azure/auth v0.1.0/go.mod h1:Gf7/i2FUpyb/sGBLIFxTBzrNzBo7aPXXE3ZVeDRwdpM=
 github.com/Azure/go-autorest/autorest/azure/auth v0.4.2 h1:iM6UAvjR97ZIeR93qTcwpKNMpV+/FTWjwEbuPD495Tk=
 github.com/Azure/go-autorest/autorest/azure/auth v0.4.2/go.mod h1:90gmfKdlmKgfjUpnCEpOJzsUEjrWDSLwHIG73tSXddM=
-github.com/Azure/go-autorest/autorest/azure/cli v0.1.0/go.mod h1:Dk8CUAt/b/PzkfeRsWzVG9Yj3ps8mS8ECztu43rdU8U=
 github.com/Azure/go-autorest/autorest/azure/cli v0.3.1 h1:LXl088ZQlP0SBppGFsRZonW6hSvwgL5gRByMbvUbx8U=
 github.com/Azure/go-autorest/autorest/azure/cli v0.3.1/go.mod h1:ZG5p860J94/0kI9mNJVoIoLgXcirM2gF5i2kWloofxw=
 github.com/Azure/go-autorest/autorest/date v0.1.0/go.mod h1:plvfp3oPSKwf2DNjlBjWF/7vwR+cUD/ELuzDCXwHUVA=
@@ -45,15 +34,12 @@ github.com/Azure/go-autorest/autorest/mocks v0.1.0/go.mod h1:OTyCOPRA2IgIlWxVYxB
 github.com/Azure/go-autorest/autorest/mocks v0.2.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
 github.com/Azure/go-autorest/autorest/mocks v0.3.0 h1:qJumjCaCudz+OcqE9/XtEPfvtOjOmKaui4EOpFI6zZc=
 github.com/Azure/go-autorest/autorest/mocks v0.3.0/go.mod h1:a8FDP3DYzQ4RYfVAxAN3SVSiiO77gL2j2ronKKP0syM=
-github.com/Azure/go-autorest/autorest/to v0.2.0/go.mod h1:GunWKJp1AEqgMaGLV+iocmRAJWqST1wQYhyyjXJ3SJc=
 github.com/Azure/go-autorest/autorest/to v0.3.0 h1:zebkZaadz7+wIQYgC7GXaz3Wb28yKYfVkkBKwc38VF8=
 github.com/Azure/go-autorest/autorest/to v0.3.0/go.mod h1:MgwOyqaIuKdG4TL/2ywSsIWKAfJfgHDo8ObuUk3t5sA=
-github.com/Azure/go-autorest/autorest/validation v0.1.0/go.mod h1:Ha3z/SqBeaalWQvokg3NZAlQTalVMtOIAs1aGK7G6u8=
 github.com/Azure/go-autorest/autorest/validation v0.2.0 h1:15vMO4y76dehZSq7pAaOLQxC6dZYsSrj2GQpflyM/L4=
 github.com/Azure/go-autorest/autorest/validation v0.2.0/go.mod h1:3EEqHnBxQGHXRYq3HT1WyXAvT7LLY3tl70hw6tQIbjI=
 github.com/Azure/go-autorest/logger v0.1.0 h1:ruG4BSDXONFRrZZJ2GUXDiUyVpayPmb1GnWeHDdaNKY=
 github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6LSNgds39diKLz7Vrc=
-github.com/Azure/go-autorest/tracing v0.1.0/go.mod h1:ROEEAFwXycQw7Sn3DXNtEedEvdeRAgDr0izn4z5Ij88=
 github.com/Azure/go-autorest/tracing v0.5.0 h1:TRn4WjSnkcSy5AEG3pnbtFSwNtwzjr4VYyQflFE619k=
 github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbtp2fGCgRFtBroKn4Dk=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
@@ -62,49 +48,45 @@ github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym
 github.com/DataDog/datadog-go v2.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
 github.com/DataDog/datadog-go v3.2.0+incompatible h1:qSG2N4FghB1He/r2mFrWKCaL7dXCilEuNEeAn20fdD4=
 github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
+github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
+github.com/Microsoft/go-winio v0.4.3 h1:M3NHMuPgMSUPdE5epwNUHlRPSVzHs8HpRTrVXhR0myo=
 github.com/Microsoft/go-winio v0.4.3/go.mod h1:VhR8bwka0BXejwEJY73c50VrPtXAaKcyvVC4A4RozmA=
-github.com/Microsoft/go-winio v0.4.15-0.20190919025122-fc70bd9a86b5 h1:ygIc8M6trr62pF5DucadTWGdEB4mEyvzi0e2nbcmcyA=
-github.com/Microsoft/go-winio v0.4.15-0.20190919025122-fc70bd9a86b5/go.mod h1:tTuCMEN+UleMWgg9dVx4Hu52b1bJo+59jBh3ajtinzw=
-github.com/Microsoft/hcsshim v0.8.7-0.20191101173118-65519b62243c/go.mod h1:7xhjOwRV2+0HXGmM0jxaEu+ZiXJFoVZOTfL/dmqbrD8=
 github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
 github.com/NYTimes/gziphandler v1.0.1/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
 github.com/NYTimes/gziphandler v1.1.1 h1:ZUDjpQae29j0ryrS0u/B8HZfJBtBQHjqw2rQ2cqUQ3I=
 github.com/NYTimes/gziphandler v1.1.1/go.mod h1:n/CVRwUEOgIxrgPvAQhUUr9oeUtvrhMomdKFjzJNB0c=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
-github.com/OpenDNS/vegadns2client v0.0.0-20180418235048-a3fa4a771d87/go.mod h1:iGLljf5n9GjT6kc0HBvyI1nOKnGQbNB66VzSNbK5iks=
 github.com/PuerkitoBio/purell v1.0.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
 github.com/PuerkitoBio/urlesc v0.0.0-20160726150825-5bd2802263f2/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
 github.com/RoaringBitmap/roaring v0.5.5 h1:naNqvO1mNnghk2UvcsqnzHDBn9DRbCIRy94GmDTRVTQ=
 github.com/RoaringBitmap/roaring v0.5.5/go.mod h1:puNo5VdzwbaIQxSiDIwfXl4Hnc+fbovcX4IW/dSTtUk=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
-github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6 h1:fLjPD/aNc3UIOA6tDi6QXUemppXK3P9BI7mr2hd6gx8=
 github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
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@@ -351,7 +288,6 @@ github.com/google/btree v1.0.0 h1:0udJVsspx3VBr5FwtLhQQtuAsVc79tTq0ocGIPAU6qo=
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@@ -367,6 +303,7 @@ github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OI
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@@ -377,45 +314,37 @@ github.com/googleapis/gnostic v0.2.0 h1:l6N3VoaVzTncYYW+9yOz2LJJammFZGBO13sqgEhp
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@@ -442,7 +371,6 @@ github.com/hashicorp/go-memdb v1.0.3/go.mod h1:LWQ8R70vPrS4OEY9k28D2z8/Zzyu34NVz
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@@ -473,9 +401,8 @@ github.com/hashicorp/go-version v1.2.0 h1:3vNe/fWF5CBgRIguda1meWhsZHy3m8gCJ5wx+d
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@@ -956,7 +831,6 @@ golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL
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@@ -965,10 +839,7 @@ golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTk
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@@ -976,12 +847,9 @@ golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCc
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@@ -992,7 +860,6 @@ golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73r
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 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
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@@ -1132,16 +986,14 @@ google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEn
 google.golang.org/api v0.9.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
 google.golang.org/api v0.13.0 h1:Q3Ui3V3/CVinFWFiW39Iw0kMuVrRzYX0wN6OPFp0lTA=
 google.golang.org/api v0.13.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
-google.golang.org/api v0.14.0 h1:uMf5uLi4eQMRrMKhCplNik4U4H8Z6C1br3zOtAa/aDE=
-google.golang.org/api v0.14.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+google.golang.org/appengine v1.2.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
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 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
-google.golang.org/genproto v0.0.0-20180831171423-11092d34479b/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190404172233-64821d5d2107/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
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@@ -1153,18 +1005,18 @@ google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98
 google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBrqXvoKpeg0TB2l7cyZUmoaFKYIwrEpbDKLA8=
 google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a h1:Ob5/580gVHBJZgXnff1cZDbG+xLtMVE5mDRTe+nIsX4=
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-google.golang.org/genproto v0.0.0-20191216164720-4f79533eabd1/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
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 google.golang.org/grpc v1.22.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
-google.golang.org/grpc v1.23.0 h1:AzbTB6ux+okLTzP8Ru1Xs41C303zdcfEht7MQnYJt5A=
+google.golang.org/grpc v1.22.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/grpc v1.23.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.26.0 h1:2dTRdpdFEEhJYQD8EMLB61nnrzSCTbG38PhqdhvOltg=
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@@ -1172,8 +1024,6 @@ google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
 google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
 google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
-google.golang.org/protobuf v1.22.0 h1:cJv5/xdbk1NnMPR1VP9+HU6gupuG9MLBoH1r6RHZ2MY=
-google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
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@@ -1183,29 +1033,22 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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@@ -1213,11 +1056,13 @@ gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bl
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-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
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@@ -1240,10 +1085,11 @@ k8s.io/klog v1.0.0/go.mod h1:4Bi6QPql/J/LkTDqv7R/cd3hPo4k2DG6Ptcz060Ez5I=
 k8s.io/kube-openapi v0.0.0-20190816220812-743ec37842bf/go.mod h1:1TqjTSzOxsLGIKfj0lK8EeCP7K1iUG65v09OM0/WG5E=
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-k8s.io/kubernetes v1.13.0/go.mod h1:ocZa8+6APFNC2tX1DZASIbocyYT5jHzqFVsY5aoB7Jk=
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 sigs.k8s.io/yaml v1.1.0 h1:4A07+ZFc2wgJwo8YNlQpr1rVlgUDlxXHhPJciaPY5gs=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
+sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=
diff --git a/integrate_test.sh b/integrate_test.sh
index deccda756a211821978e35b92a1f0865858ff59a..e1bbc8c11b0195f7cc4f08946d57464c88e74f19 100644
--- a/integrate_test.sh
+++ b/integrate_test.sh
@@ -26,12 +26,12 @@ ROOT_DIR=$(pwd)
 echo "integrate-test root work-space -> ${ROOT_DIR}"
 
 # show all travis-env
-echo "travis current commit id  -> ${TRAVIS_COMMIT}"
-echo "travis pull request -> ${TRAVIS_PULL_REQUEST}"
-echo "travis pull request branch -> ${TRAVIS_PULL_REQUEST_BRANCH}"
-echo "travis pull request slug -> ${TRAVIS_PULL_REQUEST_SLUG}"
-echo "travis pull request sha -> ${TRAVIS_PULL_REQUEST_SHA}"
-echo "travis pull request repo slug -> ${TRAVIS_REPO_SLUG}"
+echo "travis current commit id  -> $2"
+echo "travis pull request branch -> ${GITHUB_REF}"
+echo "travis pull request slug -> ${GITHUB_REPOSITORY}"
+echo "travis pull request repo slug -> ${GITHUB_REPOSITORY}"
+echo "travis pull request actor -> ${GITHUB_ACTOR}"
+echo "travis pull request repo param -> $1"
 
 
 # #start etcd registry  insecure listen in [:]:2379
@@ -53,13 +53,13 @@ echo "zookeeper listen in [:]2181"
 
 # build go-server image
 cd ./test/integrate/dubbo/go-server
-docker build . -t  ci-provider --build-arg PR_ORIGIN_REPO=${TRAVIS_PULL_REQUEST_SLUG} --build-arg PR_ORIGIN_COMMITID=${TRAVIS_PULL_REQUEST_SHA}
+docker build . -t  ci-provider --build-arg PR_ORIGIN_REPO=$1 --build-arg PR_ORIGIN_COMMITID=$2
 cd ${ROOT_DIR}
 docker run -d --network host ci-provider
 
 # build go-client image
 cd ./test/integrate/dubbo/go-client
-docker build . -t  ci-consumer --build-arg PR_ORIGIN_REPO=${TRAVIS_PULL_REQUEST_SLUG} --build-arg PR_ORIGIN_COMMITID=${TRAVIS_PULL_REQUEST_SHA}
+docker build . -t  ci-consumer --build-arg PR_ORIGIN_REPO=$1 --build-arg PR_ORIGIN_COMMITID=$2
 cd ${ROOT_DIR}
 # run provider
 # check consumer status
diff --git a/metadata/definition/definition_test.go b/metadata/definition/definition_test.go
index 958f9324d0f9f4a5027792bd8e54b238a5f56feb..389159239b4f4d7156983c83096ead151561ad28 100644
--- a/metadata/definition/definition_test.go
+++ b/metadata/definition/definition_test.go
@@ -28,7 +28,6 @@ import (
 
 import (
 	"github.com/apache/dubbo-go/common"
-	"github.com/apache/dubbo-go/common/constant"
 )
 
 func TestBuildServiceDefinition(t *testing.T) {
@@ -44,9 +43,9 @@ func TestBuildServiceDefinition(t *testing.T) {
 			"owner=ZX&pid=1447&revision=0.0.1&side=provider&timeout=3000&timestamp=1556509797245&group=%v&version=%v&bean.name=%v",
 		protocol, serviceName, group, version, beanName))
 	assert.NoError(t, err)
-	_, err = common.ServiceMap.Register(serviceName, protocol, &UserProvider{})
+	_, err = common.ServiceMap.Register(serviceName, protocol, group, version, &UserProvider{})
 	assert.NoError(t, err)
-	service := common.ServiceMap.GetService(url.Protocol, url.GetParam(constant.BEAN_NAME_KEY, url.Service()))
+	service := common.ServiceMap.GetServiceByServiceKey(url.Protocol, url.ServiceKey())
 	sd := BuildServiceDefinition(*service, url)
 	assert.Equal(t, "{canonicalName:com.ikurento.user.UserProvider, codeSource:, methods:[{name:GetUser,parameterTypes:[{type:slice}],returnType:ptr,params:[] }], types:[]}", sd.String())
 }
diff --git a/metadata/mapping/dynamic/service_name_mapping_test.go b/metadata/mapping/dynamic/service_name_mapping_test.go
index 2896b0fd4aa4fb6bada132c276c70a1653e59f99..af21704b69c674a2cd1b8963bb252ac73c0abf1e 100644
--- a/metadata/mapping/dynamic/service_name_mapping_test.go
+++ b/metadata/mapping/dynamic/service_name_mapping_test.go
@@ -39,6 +39,7 @@ func TestDynamicConfigurationServiceNameMapping(t *testing.T) {
 	dc, err := (&config_center.MockDynamicConfigurationFactory{
 		Content: appName,
 	}).GetDynamicConfiguration(nil)
+	assert.NoError(t, err)
 	config.GetApplicationConfig().Name = appName
 
 	mapping := &DynamicConfigurationServiceNameMapping{dc: dc}
diff --git a/metadata/report/consul/report_test.go b/metadata/report/consul/report_test.go
index 13d0c419bc0f0ff8426f73d4de5c85a346416770..51e93179a21851f4a81039180ecdff7519ae36fe 100644
--- a/metadata/report/consul/report_test.go
+++ b/metadata/report/consul/report_test.go
@@ -143,7 +143,9 @@ func (suite *consulMetadataReportTestSuite) testGetServiceDefinition() {
 
 func test1(t *testing.T) {
 	consulAgent := consul.NewConsulAgent(t, 8500)
-	defer consulAgent.Shutdown()
+	defer func() {
+		_ = consulAgent.Shutdown()
+	}()
 
 	url := newProviderRegistryUrl("localhost", 8500)
 	mf := extension.GetMetadataReportFactory("consul")
diff --git a/metadata/report/delegate/delegate_report.go b/metadata/report/delegate/delegate_report.go
index 836a8f9ef4aac23558e44c1c9c5adedd585d6da4..56a22de8f8e56c040260edf86859a4499f1b2f39 100644
--- a/metadata/report/delegate/delegate_report.go
+++ b/metadata/report/delegate/delegate_report.go
@@ -109,6 +109,10 @@ type MetadataReport struct {
 // NewMetadataReport will create a MetadataReport with initiation
 func NewMetadataReport() (*MetadataReport, error) {
 	url := instance.GetMetadataReportUrl()
+	if url == nil {
+		logger.Warn("the metadataReport URL is not configured, you should configure it.")
+		return nil, perrors.New("the metadataReport URL is not configured, you should configure it.")
+	}
 	bmr := &MetadataReport{
 		reportUrl:          url,
 		syncReport:         url.GetParamBool(constant.SYNC_REPORT_KEY, false),
@@ -220,7 +224,11 @@ func (mr *MetadataReport) SaveServiceMetadata(identifier *identifier.ServiceMeta
 	if mr.syncReport {
 		return report.SaveServiceMetadata(identifier, url)
 	}
-	go report.SaveServiceMetadata(identifier, url)
+	go func() {
+		if err := report.SaveServiceMetadata(identifier, url); err != nil {
+			logger.Warnf("report.SaveServiceMetadata(identifier:%v, url:%v) = error:%v", identifier, url, err)
+		}
+	}()
 	return nil
 }
 
@@ -230,7 +238,11 @@ func (mr *MetadataReport) RemoveServiceMetadata(identifier *identifier.ServiceMe
 	if mr.syncReport {
 		return report.RemoveServiceMetadata(identifier)
 	}
-	go report.RemoveServiceMetadata(identifier)
+	go func() {
+		if err := report.RemoveServiceMetadata(identifier); err != nil {
+			logger.Warnf("report.RemoveServiceMetadata(identifier:%v) = error:%v", identifier, err)
+		}
+	}()
 	return nil
 }
 
@@ -255,7 +267,12 @@ func (mr *MetadataReport) SaveSubscribedData(identifier *identifier.SubscriberMe
 	if mr.syncReport {
 		return report.SaveSubscribedData(identifier, string(bytes))
 	}
-	go report.SaveSubscribedData(identifier, string(bytes))
+	go func() {
+		if err := report.SaveSubscribedData(identifier, string(bytes)); err != nil {
+			logger.Warnf("report.SaveSubscribedData(identifier:%v, string(bytes):%v) = error: %v",
+				identifier, string(bytes), err)
+		}
+	}()
 	return nil
 }
 
diff --git a/metadata/report/delegate/delegate_report_test.go b/metadata/report/delegate/delegate_report_test.go
index 3dfca577ba06598b90c553048777951c8823b256..f60acf6e117c866cba716c538806f278d77363f0 100644
--- a/metadata/report/delegate/delegate_report_test.go
+++ b/metadata/report/delegate/delegate_report_test.go
@@ -46,13 +46,10 @@ func TestMetadataReport_MetadataReportRetry(t *testing.T) {
 	})
 	assert.NoError(t, err)
 	retry.startRetryTask()
-	itsTime := time.After(2500 * time.Millisecond)
-	select {
-	case <-itsTime:
-		retry.scheduler.Clear()
-		assert.Equal(t, counter.Load(), int64(3))
-		logger.Info("over")
-	}
+	<-time.After(2500 * time.Millisecond)
+	retry.scheduler.Clear()
+	assert.Equal(t, counter.Load(), int64(3))
+	logger.Info("over")
 }
 
 func TestMetadataReport_MetadataReportRetryWithLimit(t *testing.T) {
@@ -64,13 +61,10 @@ func TestMetadataReport_MetadataReportRetryWithLimit(t *testing.T) {
 	})
 	assert.NoError(t, err)
 	retry.startRetryTask()
-	itsTime := time.After(2500 * time.Millisecond)
-	select {
-	case <-itsTime:
-		retry.scheduler.Clear()
-		assert.Equal(t, counter.Load(), int64(2))
-		logger.Info("over")
-	}
+	<-time.After(2500 * time.Millisecond)
+	retry.scheduler.Clear()
+	assert.Equal(t, counter.Load(), int64(2))
+	logger.Info("over")
 }
 
 func mockNewMetadataReport(t *testing.T) *MetadataReport {
@@ -116,8 +110,8 @@ func getMockDefinition(id *identifier.MetadataIdentifier, t *testing.T) *definit
 			"owner=ZX&pid=1447&revision=0.0.1&side=provider&timeout=3000&timestamp=1556509797245&group=%v&version=%v&bean.name=%v",
 		protocol, id.ServiceInterface, id.Group, id.Version, beanName))
 	assert.NoError(t, err)
-	_, err = common.ServiceMap.Register(id.ServiceInterface, protocol, &definition.UserProvider{})
+	_, err = common.ServiceMap.Register(id.ServiceInterface, protocol, id.Group, id.Version, &definition.UserProvider{})
 	assert.NoError(t, err)
-	service := common.ServiceMap.GetService(url.Protocol, url.GetParam(constant.BEAN_NAME_KEY, url.Service()))
+	service := common.ServiceMap.GetServiceByServiceKey(url.Protocol, url.ServiceKey())
 	return definition.BuildServiceDefinition(*service, url)
 }
diff --git a/metadata/report/etcd/report_test.go b/metadata/report/etcd/report_test.go
index 28c04869822b166f99d98e91ec6ec3b7fe6626cc..59d0975ca675ef9550d3b2669a24ebd70ce94ec0 100644
--- a/metadata/report/etcd/report_test.go
+++ b/metadata/report/etcd/report_test.go
@@ -82,8 +82,9 @@ func TestEtcdMetadataReport_CRUD(t *testing.T) {
 	assert.Nil(t, err)
 
 	serviceMi := newServiceMetadataIdentifier()
-	serviceUrl, _ := common.NewURL("registry://localhost:8848", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
-	metadataReport.SaveServiceMetadata(serviceMi, serviceUrl)
+	serviceUrl, err := common.NewURL("registry://localhost:8848", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
+	assert.Nil(t, err)
+	err = metadataReport.SaveServiceMetadata(serviceMi, serviceUrl)
 	assert.Nil(t, err)
 
 	subMi := newSubscribeMetadataIdentifier()
diff --git a/metadata/report/nacos/report_test.go b/metadata/report/nacos/report_test.go
index b40b4380dbf8339277436b77d26d9ee3ab728a21..1b7075ec78e4ac496983564b684d8776e1476b63 100644
--- a/metadata/report/nacos/report_test.go
+++ b/metadata/report/nacos/report_test.go
@@ -19,8 +19,10 @@ package nacos
 
 import (
 	"encoding/json"
+	"net/http"
 	"strconv"
 	"testing"
+	"time"
 )
 
 import (
@@ -36,6 +38,9 @@ import (
 )
 
 func TestNacosMetadataReport_CRUD(t *testing.T) {
+	if !checkNacosServerAlive() {
+		return
+	}
 	rpt := newTestReport()
 	assert.NotNil(t, rpt)
 
@@ -114,3 +119,11 @@ func newTestReport() report.MetadataReport {
 	res := extension.GetMetadataReportFactory("nacos").CreateMetadataReport(regurl)
 	return res
 }
+
+func checkNacosServerAlive() bool {
+	c := http.Client{Timeout: time.Second}
+	if _, err := c.Get("http://console.nacos.io/nacos/"); err != nil {
+		return false
+	}
+	return true
+}
diff --git a/metadata/report/zookeeper/report_test.go b/metadata/report/zookeeper/report_test.go
index adedaaa6f4bd71511385085118f55538a5deb091..3f927b1af7ae30ac3dc4af3743e38dba00bb0ae9 100644
--- a/metadata/report/zookeeper/report_test.go
+++ b/metadata/report/zookeeper/report_test.go
@@ -144,7 +144,10 @@ func (suite *zookeeperMetadataReportTestSuite) testGetServiceDefinition() {
 func test1(t *testing.T) {
 	testCluster, err := zk.StartTestCluster(1, nil, nil)
 	assert.NoError(t, err)
-	defer testCluster.Stop()
+	defer func() {
+		err := testCluster.Stop()
+		assert.Nil(t, err)
+	}()
 
 	url := newProviderRegistryUrl("127.0.0.1", testCluster.Servers[0].Port)
 	mf := extension.GetMetadataReportFactory("zookeeper")
diff --git a/metadata/service/exporter/configurable/exporter_test.go b/metadata/service/exporter/configurable/exporter_test.go
index 2a5e646acdf86d2d9d339ae7ae377c7098b2e1b6..7c2baa2728b4c4888d9dbb117816648d72874c0b 100644
--- a/metadata/service/exporter/configurable/exporter_test.go
+++ b/metadata/service/exporter/configurable/exporter_test.go
@@ -69,7 +69,7 @@ func TestConfigurableExporter(t *testing.T) {
 		assert.Equal(t, false, exported.IsExported())
 		assert.NoError(t, exported.Export(registryURL))
 		assert.Equal(t, true, exported.IsExported())
-		assert.Regexp(t, "dubbo://:20003/MetadataService*", exported.GetExportedURLs()[0].String())
+		assert.Regexp(t, "dubbo://:20003/org.apache.dubbo.metadata.MetadataService*", exported.GetExportedURLs()[0].String())
 		exported.Unexport()
 		assert.Equal(t, false, exported.IsExported())
 	})
diff --git a/metadata/service/inmemory/service.go b/metadata/service/inmemory/service.go
index d9cbd5430527511acac1f7127b819d3832d80552..8da78c34207c37a7f7e3f475502ac43e7d88b6fd 100644
--- a/metadata/service/inmemory/service.go
+++ b/metadata/service/inmemory/service.go
@@ -124,7 +124,7 @@ func (mts *MetadataService) getAllService(services *sync.Map) []*common.URL {
 		urls := value.(*skip.SkipList)
 		for i := uint64(0); i < urls.Len(); i++ {
 			url := urls.ByPosition(i).(*common.URL)
-			if url.GetParam(constant.INTERFACE_KEY, url.Path) != constant.METADATA_SERVICE_NAME {
+			if url.Service() != constant.METADATA_SERVICE_NAME {
 				res = append(res, url)
 			}
 		}
@@ -178,7 +178,7 @@ func (mts *MetadataService) PublishServiceDefinition(url *common.URL) error {
 	interfaceName := url.GetParam(constant.INTERFACE_KEY, "")
 	isGeneric := url.GetParamBool(constant.GENERIC_KEY, false)
 	if len(interfaceName) > 0 && !isGeneric {
-		tmpService := common.ServiceMap.GetService(url.Protocol, url.GetParam(constant.BEAN_NAME_KEY, url.Service()))
+		tmpService := common.ServiceMap.GetServiceByServiceKey(url.Protocol, url.ServiceKey())
 		sd := definition.BuildServiceDefinition(*tmpService, url)
 		data, err := sd.ToBytes()
 		if err != nil {
diff --git a/metadata/service/inmemory/service_proxy.go b/metadata/service/inmemory/service_proxy.go
index 7e14293a6766492c1c1b02eef9429d1adeb539ae..8b93aab9accfd8375ded971c27f898069e73e231 100644
--- a/metadata/service/inmemory/service_proxy.go
+++ b/metadata/service/inmemory/service_proxy.go
@@ -39,8 +39,8 @@ import (
 // this is the stub, or proxy
 // for now, only GetExportedURLs need to be implemented
 type MetadataServiceProxy struct {
-	invkr        protocol.Invoker
-	golangServer bool
+	invkr protocol.Invoker
+	//golangServer bool
 }
 
 func (m *MetadataServiceProxy) GetExportedURLs(serviceInterface string, group string, version string, protocol string) ([]interface{}, error) {
@@ -67,11 +67,7 @@ func (m *MetadataServiceProxy) GetExportedURLs(serviceInterface string, group st
 	urlStrs := res.Result().(*[]interface{})
 
 	ret := make([]interface{}, 0, len(*urlStrs))
-
-	for _, s := range *urlStrs {
-		ret = append(ret, s)
-	}
-	return ret, nil
+	return append(ret, *urlStrs...), nil
 }
 
 func (m *MetadataServiceProxy) MethodMapper() map[string]string {
diff --git a/metadata/service/inmemory/service_proxy_test.go b/metadata/service/inmemory/service_proxy_test.go
index f7fc8fd88e5f31804253dc996cb99b241a519d14..9278fd9d6cf1b4657d35028aa8c244fdbc16d106 100644
--- a/metadata/service/inmemory/service_proxy_test.go
+++ b/metadata/service/inmemory/service_proxy_test.go
@@ -48,19 +48,33 @@ func TestMetadataServiceProxy_GetExportedURLs(t *testing.T) {
 // when we implement them, adding UT
 func TestNewMetadataService(t *testing.T) {
 	pxy := createPxy()
-	pxy.ServiceName()
-	pxy.PublishServiceDefinition(&common.URL{})
-	pxy.GetServiceDefinition(constant.ANY_VALUE, constant.ANY_VALUE, constant.ANY_VALUE)
-	pxy.Version()
-	pxy.GetSubscribedURLs()
-	pxy.UnsubscribeURL(&common.URL{})
-	pxy.GetServiceDefinitionByServiceKey("any")
-	pxy.ExportURL(&common.URL{})
-	pxy.SubscribeURL(&common.URL{})
-	pxy.MethodMapper()
-	pxy.UnexportURL(&common.URL{})
-	pxy.RefreshMetadata(constant.ANY_VALUE, constant.ANY_VALUE)
-
+	_, err := pxy.ServiceName()
+	assert.Nil(t, err)
+	err = pxy.PublishServiceDefinition(&common.URL{})
+	assert.Nil(t, err)
+	_, err = pxy.GetServiceDefinition(constant.ANY_VALUE, constant.ANY_VALUE, constant.ANY_VALUE)
+	assert.Nil(t, err)
+	_, err = pxy.Version()
+	assert.Nil(t, err)
+	_, err = pxy.GetSubscribedURLs()
+	assert.Nil(t, err)
+	err = pxy.UnsubscribeURL(&common.URL{})
+	assert.Nil(t, err)
+	_, err = pxy.GetServiceDefinitionByServiceKey("any")
+	assert.Nil(t, err)
+	ok, err := pxy.ExportURL(&common.URL{})
+	assert.False(t, ok)
+	assert.NoError(t, err)
+	ok, err = pxy.SubscribeURL(&common.URL{})
+	assert.False(t, ok)
+	assert.NoError(t, err)
+	m := pxy.MethodMapper()
+	assert.True(t, len(m) == 0)
+	err = pxy.UnexportURL(&common.URL{})
+	assert.NoError(t, err)
+	ok, err = pxy.RefreshMetadata(constant.ANY_VALUE, constant.ANY_VALUE)
+	assert.False(t, ok)
+	assert.NoError(t, err)
 }
 
 func createPxy() service.MetadataService {
diff --git a/metadata/service/inmemory/service_test.go b/metadata/service/inmemory/service_test.go
index 048c286fdf28fba6a15a86164df0789d421f0797..e50cd6208a4d86f8238cc68538493c309870c455 100644
--- a/metadata/service/inmemory/service_test.go
+++ b/metadata/service/inmemory/service_test.go
@@ -46,7 +46,9 @@ func TestMetadataService(t *testing.T) {
 			"owner=ZX&pid=1447&revision=0.0.1&side=provider&timeout=3000&timestamp=1556509797245&group=%v&version=%v&bean.name=%v",
 		protocol, serviceName, group, version, beanName))
 	assert.NoError(t, err)
-	mts.ExportURL(u2)
+	ok, err := mts.ExportURL(u2)
+	assert.True(t, ok)
+	assert.NoError(t, err)
 
 	u3, err := common.NewURL(fmt.Sprintf(
 		"%v://127.0.0.1:20000/com.ikurento.user.UserProvider3?anyhost=true&"+
@@ -55,7 +57,9 @@ func TestMetadataService(t *testing.T) {
 			"owner=ZX&pid=1447&revision=0.0.1&side=provider&timeout=3000&timestamp=1556509797245&group=%v&version=%v&bean.name=%v",
 		protocol, serviceName, group, version, beanName))
 	assert.NoError(t, err)
-	mts.ExportURL(u3)
+	ok, err = mts.ExportURL(u3)
+	assert.True(t, ok)
+	assert.NoError(t, err)
 
 	u, err := common.NewURL(fmt.Sprintf(
 		"%v://127.0.0.1:20000/com.ikurento.user.UserProvider1?anyhost=true&"+
@@ -64,32 +68,45 @@ func TestMetadataService(t *testing.T) {
 			"owner=ZX&pid=1447&revision=0.0.1&side=provider&timeout=3000&timestamp=1556509797245&group=%v&version=%v&bean.name=%v",
 		protocol, serviceName, group, version, beanName))
 	assert.NoError(t, err)
-	mts.ExportURL(u)
+	ok, err = mts.ExportURL(u)
+	assert.True(t, ok)
+	assert.NoError(t, err)
 	list, _ := mts.GetExportedURLs(serviceName, group, version, protocol)
 	assert.Equal(t, 3, len(list))
-	mts.SubscribeURL(u)
+	ok, err = mts.SubscribeURL(u)
+	assert.True(t, ok)
+	assert.NoError(t, err)
 
-	mts.SubscribeURL(u)
-	list2, _ := mts.GetSubscribedURLs()
+	ok, err = mts.SubscribeURL(u)
+	assert.False(t, ok)
+	assert.NoError(t, err)
+	list2, err := mts.GetSubscribedURLs()
 	assert.Equal(t, 1, len(list2))
+	assert.NoError(t, err)
 
-	mts.UnexportURL(u)
+	err = mts.UnexportURL(u)
+	assert.NoError(t, err)
 	list3, _ := mts.GetExportedURLs(serviceName, group, version, protocol)
 	assert.Equal(t, 2, len(list3))
 
-	mts.UnsubscribeURL(u)
+	err = mts.UnsubscribeURL(u)
+	assert.NoError(t, err)
 	list4, _ := mts.GetSubscribedURLs()
 	assert.Equal(t, 0, len(list4))
 
 	userProvider := &definition.UserProvider{}
-	common.ServiceMap.Register(serviceName, protocol, userProvider)
-	mts.PublishServiceDefinition(u)
+	_, err = common.ServiceMap.Register(serviceName, protocol, group, version, userProvider)
+	assert.NoError(t, err)
+	err = mts.PublishServiceDefinition(u)
+	assert.NoError(t, err)
 	expected := "{\"CanonicalName\":\"com.ikurento.user.UserProvider\",\"CodeSource\":\"\"," +
 		"\"Methods\":[{\"Name\":\"GetUser\",\"ParameterTypes\":[\"slice\"],\"ReturnType\":\"ptr\"," +
 		"\"Parameters\":null}],\"Types\":null}"
-	def1, _ := mts.GetServiceDefinition(serviceName, group, version)
+	def1, err := mts.GetServiceDefinition(serviceName, group, version)
 	assert.Equal(t, expected, def1)
+	assert.NoError(t, err)
 	serviceKey := definition.ServiceDescriperBuild(serviceName, group, version)
-	def2, _ := mts.GetServiceDefinitionByServiceKey(serviceKey)
+	def2, err := mts.GetServiceDefinitionByServiceKey(serviceKey)
 	assert.Equal(t, expected, def2)
+	assert.NoError(t, err)
 }
diff --git a/metadata/service/remote/service.go b/metadata/service/remote/service.go
index d1b17e8cd6fdddec82bd9864b231731763c1cfd1..e2a7a64d5311610b8d7c799d867f7f39c7f44fb8 100644
--- a/metadata/service/remote/service.go
+++ b/metadata/service/remote/service.go
@@ -107,29 +107,49 @@ func (mts *MetadataService) SubscribeURL(url *common.URL) (bool, error) {
 
 // UnsubscribeURL will be implemented by in memory service
 func (mts *MetadataService) UnsubscribeURL(url *common.URL) error {
-	return mts.UnsubscribeURL(url)
+	// TODO remove call local.
+	return nil
+	//return mts.UnsubscribeURL(url)
 }
 
 // PublishServiceDefinition will call remote metadata's StoreProviderMetadata to store url info and service definition
 func (mts *MetadataService) PublishServiceDefinition(url *common.URL) error {
 	interfaceName := url.GetParam(constant.INTERFACE_KEY, "")
 	isGeneric := url.GetParamBool(constant.GENERIC_KEY, false)
-	if len(interfaceName) > 0 && !isGeneric {
-		sv := common.ServiceMap.GetService(url.Protocol, url.GetParam(constant.BEAN_NAME_KEY, url.Service()))
-		sd := definition.BuildServiceDefinition(*sv, url)
+	if common.RoleType(common.PROVIDER).Role() == url.GetParam(constant.SIDE_KEY, "") {
+		if len(interfaceName) > 0 && !isGeneric {
+			sv := common.ServiceMap.GetServiceByServiceKey(url.Protocol, url.ServiceKey())
+			sd := definition.BuildServiceDefinition(*sv, url)
+			id := &identifier.MetadataIdentifier{
+				BaseMetadataIdentifier: identifier.BaseMetadataIdentifier{
+					ServiceInterface: interfaceName,
+					Version:          url.GetParam(constant.VERSION_KEY, ""),
+					Group:            url.GetParam(constant.GROUP_KEY, constant.DUBBO),
+					Side:             url.GetParam(constant.SIDE_KEY, constant.PROVIDER_PROTOCOL),
+				},
+			}
+			mts.delegateReport.StoreProviderMetadata(id, sd)
+			return nil
+		}
+		logger.Errorf("publishProvider interfaceName is empty . providerUrl:%v ", url)
+	} else {
+		params := make(map[string]string, len(url.GetParams()))
+		url.RangeParams(func(key, value string) bool {
+			params[key] = value
+			return true
+		})
 		id := &identifier.MetadataIdentifier{
 			BaseMetadataIdentifier: identifier.BaseMetadataIdentifier{
 				ServiceInterface: interfaceName,
 				Version:          url.GetParam(constant.VERSION_KEY, ""),
-				// Group:            url.GetParam(constant.GROUP_KEY, constant.SERVICE_DISCOVERY_DEFAULT_GROUP),
-				Group: url.GetParam(constant.GROUP_KEY, constant.DUBBO),
-				Side:  url.GetParam(constant.SIDE_KEY, "provider"),
+				Group:            url.GetParam(constant.GROUP_KEY, constant.DUBBO),
+				Side:             url.GetParam(constant.SIDE_KEY, "consumer"),
 			},
 		}
-		mts.delegateReport.StoreProviderMetadata(id, sd)
+		mts.delegateReport.StoreConsumerMetadata(id, params)
 		return nil
 	}
-	logger.Errorf("publishProvider interfaceName is empty . providerUrl:%v ", url)
+
 	return nil
 }
 
@@ -186,7 +206,7 @@ func (mts *MetadataService) RefreshMetadata(exportedRevision string, subscribedR
 			logger.Errorf("Error occur when execute remote.MetadataService.RefreshMetadata, error message is %v+", err)
 			return false, err
 		}
-		if urls != nil && len(urls) > 0 {
+		if len(urls) > 0 {
 			id := &identifier.SubscriberMetadataIdentifier{
 				MetadataIdentifier: identifier.MetadataIdentifier{
 					Application: config.GetApplicationConfig().Name,
diff --git a/metadata/service/remote/service_proxy.go b/metadata/service/remote/service_proxy.go
index 3199aa6dfff6f5e8b6036c44f452d16480b0380c..e0cd6e0783fe4572e0a69cf0694d70f74ba46b42 100644
--- a/metadata/service/remote/service_proxy.go
+++ b/metadata/service/remote/service_proxy.go
@@ -135,7 +135,7 @@ func (m metadataServiceProxy) Version() (string, error) {
 func newMetadataServiceProxy(ins registry.ServiceInstance) service.MetadataService {
 	revision := ins.GetMetadata()[constant.EXPORTED_SERVICES_REVISION_PROPERTY_NAME]
 	if len(revision) == 0 {
-		revision = constant.DEFAULT_REVIESION
+		revision = constant.DEFAULT_REVISION
 	}
 
 	return &metadataServiceProxy{
@@ -146,7 +146,7 @@ func newMetadataServiceProxy(ins registry.ServiceInstance) service.MetadataServi
 }
 
 func parse(key string) []string {
-	arr := make([]string, 3, 3)
+	arr := make([]string, 3)
 	tmp := strings.SplitN(key, "/", 2)
 	if len(tmp) > 1 {
 		arr[0] = tmp[0]
diff --git a/metadata/service/remote/service_proxy_test.go b/metadata/service/remote/service_proxy_test.go
index 8bccbb8bbb70d1533fa3dad78bab59e82ff2e5b3..1899d02205e17f62637488e68630649e60cff061 100644
--- a/metadata/service/remote/service_proxy_test.go
+++ b/metadata/service/remote/service_proxy_test.go
@@ -54,18 +54,28 @@ func TestMetadataServiceProxy_GetServiceDefinition(t *testing.T) {
 // in fact, we don't use them
 func TestMetadataServiceProxy(t *testing.T) {
 	pxy := createProxy()
-	pxy.ServiceName()
-	pxy.PublishServiceDefinition(&common.URL{})
-	pxy.Version()
-	pxy.GetSubscribedURLs()
-	pxy.UnsubscribeURL(&common.URL{})
-	pxy.GetServiceDefinitionByServiceKey("any")
-	pxy.ExportURL(&common.URL{})
-	pxy.SubscribeURL(&common.URL{})
-	pxy.MethodMapper()
-	pxy.UnexportURL(&common.URL{})
-	pxy.Reference()
-	pxy.RefreshMetadata(constant.ANY_VALUE, constant.ANY_VALUE)
+	_, err := pxy.ServiceName()
+	assert.NoError(t, err)
+	err = pxy.PublishServiceDefinition(&common.URL{})
+	assert.NoError(t, err)
+	_, err = pxy.Version()
+	assert.NoError(t, err)
+	_, err = pxy.GetSubscribedURLs()
+	assert.NoError(t, err)
+	err = pxy.UnsubscribeURL(&common.URL{})
+	assert.NoError(t, err)
+	_, err = pxy.GetServiceDefinitionByServiceKey("any")
+	assert.NoError(t, err)
+	_, err = pxy.ExportURL(&common.URL{})
+	assert.NoError(t, err)
+	_, err = pxy.SubscribeURL(&common.URL{})
+	assert.NoError(t, err)
+	_ = pxy.MethodMapper()
+	err = pxy.UnexportURL(&common.URL{})
+	assert.NoError(t, err)
+	_ = pxy.Reference()
+	_, err = pxy.RefreshMetadata(constant.ANY_VALUE, constant.ANY_VALUE)
+	assert.NoError(t, err)
 }
 
 func createProxy() service.MetadataService {
diff --git a/metadata/service/remote/service_test.go b/metadata/service/remote/service_test.go
index 1cbe5eec0fb97dee1880a9580afa7ea0bd72ca44..d6028152ccb275238491accc055e67d0b903bc55 100644
--- a/metadata/service/remote/service_test.go
+++ b/metadata/service/remote/service_test.go
@@ -95,7 +95,7 @@ func (metadataReport) GetServiceDefinition(*identifier.MetadataIdentifier) (stri
 
 func TestMetadataService(t *testing.T) {
 	extension.SetMetadataReportFactory("mock", getMetadataReportFactory)
-	u, err := common.NewURL(fmt.Sprintf("mock://127.0.0.1:20000/?sync.report=true"))
+	u, err := common.NewURL("mock://127.0.0.1:20000/?sync.report=true")
 	assert.NoError(t, err)
 	instance.GetMetadataReportInstance(u)
 	mts, err := newMetadataService()
@@ -126,7 +126,7 @@ func mockInmemoryProc(t *testing.T) *inmemory.MetadataService {
 	_, err = mts.SubscribeURL(u)
 	assert.NoError(t, err)
 
-	_, err = common.ServiceMap.Register(serviceName, protocol, userProvider)
+	_, err = common.ServiceMap.Register(serviceName, protocol, group, version, userProvider)
 	assert.NoError(t, err)
 	err = mts.PublishServiceDefinition(u)
 	assert.NoError(t, err)
diff --git a/metrics/prometheus/reporter.go b/metrics/prometheus/reporter.go
index 810a13d87ce938a3b8a9d085f6d5ae6e3dc4c6ad..266c8206c5ea5b6dc07402943bcebdeb6dd7dea7 100644
--- a/metrics/prometheus/reporter.go
+++ b/metrics/prometheus/reporter.go
@@ -24,6 +24,7 @@ import (
 	"sync"
 	"time"
 )
+
 import (
 	"github.com/prometheus/client_golang/prometheus"
 )
@@ -64,7 +65,6 @@ var (
 
 // should initialize after loading configuration
 func init() {
-
 	extension.SetMetricReporter(reporterName, newPrometheusReporter)
 }
 
@@ -72,12 +72,10 @@ func init() {
 // if you want to use this feature, you need to initialize your prometheus.
 // https://prometheus.io/docs/guides/go-application/
 type PrometheusReporter struct {
-
 	// report the consumer-side's summary data
 	consumerSummaryVec *prometheus.SummaryVec
 	// report the provider-side's summary data
 	providerSummaryVec *prometheus.SummaryVec
-
 	// report the provider-side's histogram data
 	providerHistogramVec *prometheus.HistogramVec
 	// report the consumer-side's histogram data
diff --git a/metrics/prometheus/reporter_test.go b/metrics/prometheus/reporter_test.go
index eaba0e324ff078bdfb2fd4b146ac9ea60d429724..1b9853f4d20739269861aac680b1ec491ef552d6 100644
--- a/metrics/prometheus/reporter_test.go
+++ b/metrics/prometheus/reporter_test.go
@@ -26,6 +26,7 @@ import (
 import (
 	"github.com/stretchr/testify/assert"
 )
+
 import (
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/common/extension"
diff --git a/metrics/reporter.go b/metrics/reporter.go
index 9a7094fa62d9c0fa3e6ee0a8ef373f91c28d2c90..24d75aa4fe949737d7ca94cfd339a32af14a40be 100644
--- a/metrics/reporter.go
+++ b/metrics/reporter.go
@@ -21,6 +21,7 @@ import (
 	"context"
 	"time"
 )
+
 import (
 	"github.com/apache/dubbo-go/protocol"
 )
diff --git a/protocol/dubbo/dubbo_codec.go b/protocol/dubbo/dubbo_codec.go
index 5e859a7fa2254ba0e4806bc60c037c47777bc641..21376c3145d7d620d7fc12f2bc67efcd65faee4b 100644
--- a/protocol/dubbo/dubbo_codec.go
+++ b/protocol/dubbo/dubbo_codec.go
@@ -105,7 +105,7 @@ func (c *DubboCodec) EncodeRequest(request *remoting.Request) (*bytes.Buffer, er
 	return pkg.Marshal()
 }
 
-// encode heartbeart request
+// encode heartbeat request
 func (c *DubboCodec) encodeHeartbeartReqeust(request *remoting.Request) (*bytes.Buffer, error) {
 	header := impl.DubboHeader{
 		Type:     impl.PackageHeartbeat,
@@ -177,10 +177,7 @@ func (c *DubboCodec) Decode(data []byte) (remoting.DecodeResult, int, error) {
 }
 
 func (c *DubboCodec) isRequest(data []byte) bool {
-	if data[2]&byte(0x80) == 0x00 {
-		return false
-	}
-	return true
+	return data[2]&byte(0x80) != 0x00
 }
 
 // decode request
@@ -238,7 +235,6 @@ func (c *DubboCodec) decodeRequest(data []byte) (*remoting.Request, int, error)
 func (c *DubboCodec) decodeResponse(data []byte) (*remoting.Response, int, error) {
 	buf := bytes.NewBuffer(data)
 	pkg := impl.NewDubboPackage(buf)
-	response := &remoting.Response{}
 	err := pkg.Unmarshal()
 	if err != nil {
 		originErr := perrors.Cause(err)
@@ -250,7 +246,7 @@ func (c *DubboCodec) decodeResponse(data []byte) (*remoting.Response, int, error
 
 		return nil, 0, perrors.WithStack(err)
 	}
-	response = &remoting.Response{
+	response := &remoting.Response{
 		ID: pkg.Header.ID,
 		//Version:  pkg.Header.,
 		SerialID: pkg.Header.SerialID,
diff --git a/protocol/dubbo/dubbo_exporter.go b/protocol/dubbo/dubbo_exporter.go
index dd80937c5bdf6718c2047b102115d8c08afcd899..1873a63fe14f1e2bbb415d5a22c157d03f9ae6ee 100644
--- a/protocol/dubbo/dubbo_exporter.go
+++ b/protocol/dubbo/dubbo_exporter.go
@@ -42,10 +42,9 @@ func NewDubboExporter(key string, invoker protocol.Invoker, exporterMap *sync.Ma
 
 // Unexport unexport dubbo service exporter.
 func (de *DubboExporter) Unexport() {
-	serviceId := de.GetInvoker().GetUrl().GetParam(constant.BEAN_NAME_KEY, "")
 	interfaceName := de.GetInvoker().GetUrl().GetParam(constant.INTERFACE_KEY, "")
 	de.BaseExporter.Unexport()
-	err := common.ServiceMap.UnRegister(interfaceName, DUBBO, serviceId)
+	err := common.ServiceMap.UnRegister(interfaceName, DUBBO, de.GetInvoker().GetUrl().ServiceKey())
 	if err != nil {
 		logger.Errorf("[DubboExporter.Unexport] error: %v", err)
 	}
diff --git a/protocol/dubbo/dubbo_invoker.go b/protocol/dubbo/dubbo_invoker.go
index acddfd6cd51733794fcf2e93f096d898de7ec1cd..231db381f96bd6885e4c4797e89fe4b21dc7b48d 100644
--- a/protocol/dubbo/dubbo_invoker.go
+++ b/protocol/dubbo/dubbo_invoker.go
@@ -22,13 +22,11 @@ import (
 	"strconv"
 	"strings"
 	"sync"
-	"sync/atomic"
 	"time"
 )
 
 import (
 	"github.com/opentracing/opentracing-go"
-	perrors "github.com/pkg/errors"
 )
 
 import (
@@ -41,28 +39,20 @@ import (
 	"github.com/apache/dubbo-go/remoting"
 )
 
-var (
-	// ErrNoReply
-	ErrNoReply = perrors.New("request need @response")
-	// ErrDestroyedInvoker
-	ErrDestroyedInvoker = perrors.New("request Destroyed invoker")
-)
-
 var (
 	attachmentKey = []string{constant.INTERFACE_KEY, constant.GROUP_KEY, constant.TOKEN_KEY, constant.TIMEOUT_KEY,
 		constant.VERSION_KEY}
 )
 
-// DubboInvoker is implement of protocol.Invoker. A dubboInvoker refer to one service and ip.
+// DubboInvoker is implement of protocol.Invoker. A dubboInvoker refers to one service and ip.
 type DubboInvoker struct {
 	protocol.BaseInvoker
 	// the exchange layer, it is focus on network communication.
-	client   *remoting.ExchangeClient
-	quitOnce sync.Once
+	clientGuard *sync.RWMutex
+	client      *remoting.ExchangeClient
+	quitOnce    sync.Once
 	// timeout for service(interface) level.
 	timeout time.Duration
-	// Used to record the number of requests. -1 represent this DubboInvoker is destroyed
-	reqNum int64
 }
 
 // NewDubboInvoker constructor
@@ -73,12 +63,28 @@ func NewDubboInvoker(url *common.URL, client *remoting.ExchangeClient) *DubboInv
 	if t, err := time.ParseDuration(requestTimeoutStr); err == nil {
 		requestTimeout = t
 	}
-	return &DubboInvoker{
+	di := &DubboInvoker{
 		BaseInvoker: *protocol.NewBaseInvoker(url),
+		clientGuard: &sync.RWMutex{},
 		client:      client,
-		reqNum:      0,
 		timeout:     requestTimeout,
 	}
+
+	return di
+}
+
+func (di *DubboInvoker) setClient(client *remoting.ExchangeClient) {
+	di.clientGuard.Lock()
+	defer di.clientGuard.Unlock()
+
+	di.client = client
+}
+
+func (di *DubboInvoker) getClient() *remoting.ExchangeClient {
+	di.clientGuard.RLock()
+	defer di.clientGuard.RUnlock()
+
+	return di.client
 }
 
 // Invoke call remoting.
@@ -87,15 +93,30 @@ func (di *DubboInvoker) Invoke(ctx context.Context, invocation protocol.Invocati
 		err    error
 		result protocol.RPCResult
 	)
-	if di.reqNum < 0 {
+	if !di.BaseInvoker.IsAvailable() {
 		// Generally, the case will not happen, because the invoker has been removed
 		// from the invoker list before destroy,so no new request will enter the destroyed invoker
 		logger.Warnf("this dubboInvoker is destroyed")
-		result.Err = ErrDestroyedInvoker
+		result.Err = protocol.ErrDestroyedInvoker
+		return &result
+	}
+
+	di.clientGuard.RLock()
+	defer di.clientGuard.RUnlock()
+
+	if di.client == nil {
+		result.Err = protocol.ErrClientClosed
+		logger.Debugf("result.Err: %v", result.Err)
+		return &result
+	}
+
+	if !di.BaseInvoker.IsAvailable() {
+		// Generally, the case will not happen, because the invoker has been removed
+		// from the invoker list before destroy,so no new request will enter the destroyed invoker
+		logger.Warnf("this dubboInvoker is destroying")
+		result.Err = protocol.ErrDestroyedInvoker
 		return &result
 	}
-	atomic.AddInt64(&(di.reqNum), 1)
-	defer atomic.AddInt64(&(di.reqNum), -1)
 
 	inv := invocation.(*invocation_impl.RPCInvocation)
 	// init param
@@ -125,14 +146,13 @@ func (di *DubboInvoker) Invoke(ctx context.Context, invocation protocol.Invocati
 	timeout := di.getTimeout(inv)
 	if async {
 		if callBack, ok := inv.CallBack().(func(response common.CallbackResponse)); ok {
-			//result.Err = di.client.AsyncCall(NewRequest(url.Location, url, inv.MethodName(), inv.Arguments(), inv.Attachments()), callBack, response)
 			result.Err = di.client.AsyncRequest(&invocation, url, timeout, callBack, rest)
 		} else {
 			result.Err = di.client.Send(&invocation, url, timeout)
 		}
 	} else {
 		if inv.Reply() == nil {
-			result.Err = ErrNoReply
+			result.Err = protocol.ErrNoReply
 		} else {
 			result.Err = di.client.Request(&invocation, url, timeout, rest)
 		}
@@ -162,27 +182,23 @@ func (di *DubboInvoker) getTimeout(invocation *invocation_impl.RPCInvocation) ti
 }
 
 func (di *DubboInvoker) IsAvailable() bool {
-	return di.client.IsAvailable()
+	client := di.getClient()
+	if client != nil {
+		return client.IsAvailable()
+	}
+
+	return false
 }
 
 // Destroy destroy dubbo client invoker.
 func (di *DubboInvoker) Destroy() {
 	di.quitOnce.Do(func() {
-		for {
-			if di.reqNum == 0 {
-				di.reqNum = -1
-				logger.Infof("dubboInvoker is destroyed,url:{%s}", di.GetUrl().Key())
-				di.BaseInvoker.Destroy()
-				if di.client != nil {
-					di.client.Close()
-					di.client = nil
-				}
-				break
-			}
-			logger.Warnf("DubboInvoker is to be destroyed, wait {%v} req end,url:{%s}", di.reqNum, di.GetUrl().Key())
-			time.Sleep(1 * time.Second)
+		di.BaseInvoker.Destroy()
+		client := di.getClient()
+		if client != nil {
+			di.setClient(nil)
+			client.Close()
 		}
-
 	})
 }
 
diff --git a/protocol/dubbo/dubbo_invoker_test.go b/protocol/dubbo/dubbo_invoker_test.go
index 49d853ee2dba51600692724afae830ae3c2f00a0..fecb3b01ab286d4900cba4628cb80ea6d9920a9a 100644
--- a/protocol/dubbo/dubbo_invoker_test.go
+++ b/protocol/dubbo/dubbo_invoker_test.go
@@ -97,7 +97,7 @@ func InitTest(t *testing.T) (protocol.Protocol, *common.URL) {
 
 	hessian.RegisterPOJO(&User{})
 
-	methods, err := common.ServiceMap.Register("com.ikurento.user.UserProvider", "dubbo", &UserProvider{})
+	methods, err := common.ServiceMap.Register("com.ikurento.user.UserProvider", "dubbo", "", "", &UserProvider{})
 	assert.NoError(t, err)
 	assert.Equal(t, "GetBigPkg,GetUser,GetUser0,GetUser1,GetUser2,GetUser3,GetUser4,GetUser5,GetUser6", methods)
 
@@ -169,7 +169,7 @@ type (
 	}
 
 	UserProvider struct {
-		user map[string]User
+		//user map[string]User
 	}
 )
 
diff --git a/protocol/dubbo/dubbo_protocol.go b/protocol/dubbo/dubbo_protocol.go
index 4f03b8aba061ea9b37b35d89142eb7bec80f3a97..1f7cd50187d14252ec7e4b2f5c78e8b5bd9228e2 100644
--- a/protocol/dubbo/dubbo_protocol.go
+++ b/protocol/dubbo/dubbo_protocol.go
@@ -222,13 +222,13 @@ func getExchangeClient(url *common.URL) *remoting.ExchangeClient {
 // Once we decided to transfer more context's key-value, we should change this.
 // now we only support rebuild the tracing context
 func rebuildCtx(inv *invocation.RPCInvocation) context.Context {
-	ctx := context.WithValue(context.Background(), "attachment", inv.Attachments())
+	ctx := context.WithValue(context.Background(), constant.DubboCtxKey("attachment"), inv.Attachments())
 
 	// actually, if user do not use any opentracing framework, the err will not be nil.
 	spanCtx, err := opentracing.GlobalTracer().Extract(opentracing.TextMap,
 		opentracing.TextMapCarrier(filterContext(inv.Attachments())))
 	if err == nil {
-		ctx = context.WithValue(ctx, constant.TRACING_REMOTE_SPAN_CTX, spanCtx)
+		ctx = context.WithValue(ctx, constant.DubboCtxKey(constant.TRACING_REMOTE_SPAN_CTX), spanCtx)
 	}
 	return ctx
 }
diff --git a/protocol/dubbo/hessian2/const.go b/protocol/dubbo/hessian2/const.go
index 74a00b601db22397916aab215ccd33bc918d91e7..96e6eea8ea4cd3088e0d32157c013e93a93cad4e 100644
--- a/protocol/dubbo/hessian2/const.go
+++ b/protocol/dubbo/hessian2/const.go
@@ -28,11 +28,6 @@ import (
 	perrors "github.com/pkg/errors"
 )
 
-const (
-	mask = byte(127)
-	flag = byte(128)
-)
-
 const (
 	// Zero : byte zero
 	Zero = byte(0x00)
@@ -80,14 +75,10 @@ const (
 	INT_SHORT_MAX     = 0x3ffff
 	BC_INT_SHORT_ZERO = byte(0xd4)
 
-	BC_LIST_VARIABLE           = byte(0x55)
-	BC_LIST_FIXED              = byte('V')
-	BC_LIST_VARIABLE_UNTYPED   = byte(0x57)
-	BC_LIST_FIXED_UNTYPED      = byte(0x58)
-	_listFixedTypedLenTagMin   = byte(0x70)
-	_listFixedTypedLenTagMax   = byte(0x77)
-	_listFixedUntypedLenTagMin = byte(0x78)
-	_listFixedUntypedLenTagMax = byte(0x7f)
+	BC_LIST_VARIABLE         = byte(0x55)
+	BC_LIST_FIXED            = byte('V')
+	BC_LIST_VARIABLE_UNTYPED = byte(0x57)
+	BC_LIST_FIXED_UNTYPED    = byte(0x58)
 
 	BC_LIST_DIRECT         = byte(0x70)
 	BC_LIST_DIRECT_UNTYPED = byte(0x78)
diff --git a/protocol/dubbo/hessian2/hessian_dubbo.go b/protocol/dubbo/hessian2/hessian_dubbo.go
index 1afa4ec96eccbb8077852dfcc020e0eb05be3257..5ffebde54b951997057a1f161dbcf6aae1d4a7fd 100644
--- a/protocol/dubbo/hessian2/hessian_dubbo.go
+++ b/protocol/dubbo/hessian2/hessian_dubbo.go
@@ -99,7 +99,7 @@ func (h *HessianCodec) Write(service Service, header DubboHeader, body interface
 		return packResponse(header, body)
 
 	default:
-		return nil, perrors.Errorf("Unrecognised message type: %v", header.Type)
+		return nil, perrors.Errorf("Unrecognized message type: %v", header.Type)
 	}
 
 	// unreachable return nil, nil
@@ -190,9 +190,9 @@ func (h *HessianCodec) ReadBody(rspObj interface{}) error {
 	switch h.pkgType & PackageType_BitSize {
 	case PackageResponse | PackageHeartbeat | PackageResponse_Exception, PackageResponse | PackageResponse_Exception:
 		decoder := hessian.NewDecoder(buf[:])
-		exception, err := decoder.Decode()
-		if err != nil {
-			return perrors.WithStack(err)
+		exception, exceptionErr := decoder.Decode()
+		if exceptionErr != nil {
+			return perrors.WithStack(exceptionErr)
 		}
 		rsp, ok := rspObj.(*DubboResponse)
 		if !ok {
diff --git a/protocol/dubbo/hessian2/hessian_dubbo_test.go b/protocol/dubbo/hessian2/hessian_dubbo_test.go
index 13dab92ba874fb5d746c5d57134592865cbfc7bd..eaaf500738e6c77142b0c0cb267fb0d8e7ac1437 100644
--- a/protocol/dubbo/hessian2/hessian_dubbo_test.go
+++ b/protocol/dubbo/hessian2/hessian_dubbo_test.go
@@ -80,6 +80,7 @@ func doTestHessianEncodeHeader(t *testing.T, packageType PackageType, responseSt
 
 func doTestResponse(t *testing.T, packageType PackageType, responseStatus byte, body interface{}, decodedResponse *DubboResponse, assertFunc func()) {
 	resp, err := doTestHessianEncodeHeader(t, packageType, responseStatus, body)
+	assert.NoError(t, err)
 
 	codecR := NewHessianCodec(bufio.NewReader(bytes.NewReader(resp)))
 
@@ -163,6 +164,7 @@ func TestResponse(t *testing.T) {
 
 func doTestRequest(t *testing.T, packageType PackageType, responseStatus byte, body interface{}) {
 	resp, err := doTestHessianEncodeHeader(t, packageType, responseStatus, body)
+	assert.NoError(t, err)
 
 	codecR := NewHessianCodec(bufio.NewReader(bytes.NewReader(resp)))
 
diff --git a/protocol/dubbo/hessian2/hessian_request.go b/protocol/dubbo/hessian2/hessian_request.go
index 4ebb4aa1be05d4d1941661fed452dda06cf55fa0..94aa34dee895bc8d441f710edecabe0326da1400 100644
--- a/protocol/dubbo/hessian2/hessian_request.go
+++ b/protocol/dubbo/hessian2/hessian_request.go
@@ -30,6 +30,10 @@ import (
 	perrors "github.com/pkg/errors"
 )
 
+import (
+	"github.com/apache/dubbo-go/common/logger"
+)
+
 /////////////////////////////////////////
 // dubbo
 /////////////////////////////////////////
@@ -39,7 +43,7 @@ func getArgType(v interface{}) string {
 		return "V"
 	}
 
-	switch v.(type) {
+	switch v := v.(type) {
 	// Serialized tags for base types
 	case nil:
 		return "V"
@@ -216,23 +220,31 @@ func packRequest(service Service, header DubboHeader, req interface{}) ([]byte,
 	// body
 	//////////////////////////////////////////
 	if hb {
-		encoder.Encode(nil)
+		_ = encoder.Encode(nil)
 		goto END
 	}
 
 	// dubbo version + path + version + method
-	encoder.Encode(DEFAULT_DUBBO_PROTOCOL_VERSION)
-	encoder.Encode(service.Path)
-	encoder.Encode(service.Version)
-	encoder.Encode(service.Method)
+	if err = encoder.Encode(DEFAULT_DUBBO_PROTOCOL_VERSION); err != nil {
+		logger.Warnf("Encode(DEFAULT_DUBBO_PROTOCOL_VERSION) = error: %v", err)
+	}
+	if err = encoder.Encode(service.Path); err != nil {
+		logger.Warnf("Encode(service.Path) = error: %v", err)
+	}
+	if err = encoder.Encode(service.Version); err != nil {
+		logger.Warnf("Encode(service.Version) = error: %v", err)
+	}
+	if err = encoder.Encode(service.Method); err != nil {
+		logger.Warnf("Encode(service.Method) = error: %v", err)
+	}
 
 	// args = args type list + args value list
 	if types, err = getArgsTypeList(args); err != nil {
 		return nil, perrors.Wrapf(err, " PackRequest(args:%+v)", args)
 	}
-	encoder.Encode(types)
+	_ = encoder.Encode(types)
 	for _, v := range args {
-		encoder.Encode(v)
+		_ = encoder.Encode(v)
 	}
 
 	request.Attachments[PATH_KEY] = service.Path
@@ -247,7 +259,7 @@ func packRequest(service Service, header DubboHeader, req interface{}) ([]byte,
 		request.Attachments[TIMEOUT_KEY] = strconv.Itoa(int(service.Timeout / time.Millisecond))
 	}
 
-	encoder.Encode(request.Attachments)
+	_ = encoder.Encode(request.Attachments)
 
 END:
 	byteArray = encoder.Buffer()
diff --git a/protocol/dubbo/hessian2/hessian_response.go b/protocol/dubbo/hessian2/hessian_response.go
index 982960ed87e74b325687ac364c97a347efe6c38f..b95e1c2711e8922b280260035eaba1cc03f50aa4 100644
--- a/protocol/dubbo/hessian2/hessian_response.go
+++ b/protocol/dubbo/hessian2/hessian_response.go
@@ -18,6 +18,7 @@ package hessian2
 
 import (
 	"encoding/binary"
+	"github.com/apache/dubbo-go/common/logger"
 	"math"
 	"reflect"
 	"strconv"
@@ -93,7 +94,9 @@ func packResponse(header DubboHeader, ret interface{}) ([]byte, error) {
 
 	if header.ResponseStatus == Response_OK {
 		if hb {
-			encoder.Encode(nil)
+			if err := encoder.Encode(nil); err != nil {
+				logger.Warnf("Encode(nil) = %v", err)
+			}
 		} else {
 			atta := isSupportResponseAttachment(response.Attachments[DUBBO_VERSION_KEY])
 
@@ -109,30 +112,30 @@ func packResponse(header DubboHeader, ret interface{}) ([]byte, error) {
 			}
 
 			if response.Exception != nil { // throw error
-				encoder.Encode(resWithException)
+				_ = encoder.Encode(resWithException)
 				if t, ok := response.Exception.(java_exception.Throwabler); ok {
-					encoder.Encode(t)
+					_ = encoder.Encode(t)
 				} else {
-					encoder.Encode(java_exception.NewThrowable(response.Exception.Error()))
+					_ = encoder.Encode(java_exception.NewThrowable(response.Exception.Error()))
 				}
 			} else {
 				if response.RspObj == nil {
-					encoder.Encode(resNullValue)
+					_ = encoder.Encode(resNullValue)
 				} else {
-					encoder.Encode(resValue)
-					encoder.Encode(response.RspObj) // result
+					_ = encoder.Encode(resValue)
+					_ = encoder.Encode(response.RspObj) // result
 				}
 			}
 
 			if atta {
-				encoder.Encode(response.Attachments) // attachments
+				_ = encoder.Encode(response.Attachments) // attachments
 			}
 		}
 	} else {
 		if response.Exception != nil { // throw error
-			encoder.Encode(response.Exception.Error())
+			_ = encoder.Encode(response.Exception.Error())
 		} else {
-			encoder.Encode(response.RspObj)
+			_ = encoder.Encode(response.RspObj)
 		}
 	}
 
@@ -145,7 +148,6 @@ func packResponse(header DubboHeader, ret interface{}) ([]byte, error) {
 	// byteArray{body length}
 	binary.BigEndian.PutUint32(byteArray[12:], uint32(pkgLen-HEADER_LENGTH))
 	return byteArray, nil
-
 }
 
 // hessian decode response body
diff --git a/protocol/dubbo/impl/codec.go b/protocol/dubbo/impl/codec.go
index c139f3547b2af5196a38be9bc83f49251bfcf043..6c9816f0ff9a4faee7750d16468fa65b9aa803f2 100644
--- a/protocol/dubbo/impl/codec.go
+++ b/protocol/dubbo/impl/codec.go
@@ -146,7 +146,7 @@ func (c *ProtocolCodec) Encode(p DubboPackage) ([]byte, error) {
 		return packResponse(p, c.serializer)
 
 	default:
-		return nil, perrors.Errorf("Unrecognised message type: %v", header.Type)
+		return nil, perrors.Errorf("Unrecognized message type: %v", header.Type)
 	}
 }
 
@@ -163,15 +163,12 @@ func (c *ProtocolCodec) Decode(p *DubboPackage) error {
 	if p.IsResponseWithException() {
 		logger.Infof("response with exception: %+v", p.Header)
 		decoder := hessian.NewDecoder(body)
+		p.Body = &ResponsePayload{}
 		exception, err := decoder.Decode()
 		if err != nil {
 			return perrors.WithStack(err)
 		}
-		rsp, ok := p.Body.(*ResponsePayload)
-		if !ok {
-			return perrors.Errorf("java exception:%s", exception.(string))
-		}
-		rsp.Exception = perrors.Errorf("java exception:%s", exception.(string))
+		p.Body.(*ResponsePayload).Exception = perrors.Errorf("java exception:%s", exception.(string))
 		return nil
 	} else if p.IsHeartBeat() {
 		// heartbeat no need to unmarshal contents
diff --git a/protocol/dubbo/impl/const.go b/protocol/dubbo/impl/const.go
index 70d8bae6cad63d436f5d9f1ef69c397ee8a052f3..c9b92bad3b402f6f8656ca47c1a2954c7881d68b 100644
--- a/protocol/dubbo/impl/const.go
+++ b/protocol/dubbo/impl/const.go
@@ -28,11 +28,6 @@ const (
 	DUBBO = "dubbo"
 )
 
-const (
-	mask = byte(127)
-	flag = byte(128)
-)
-
 const (
 	// Zero : byte zero
 	Zero = byte(0x00)
@@ -80,14 +75,10 @@ const (
 	INT_SHORT_MAX     = 0x3ffff
 	BC_INT_SHORT_ZERO = byte(0xd4)
 
-	BC_LIST_VARIABLE           = byte(0x55)
-	BC_LIST_FIXED              = byte('V')
-	BC_LIST_VARIABLE_UNTYPED   = byte(0x57)
-	BC_LIST_FIXED_UNTYPED      = byte(0x58)
-	_listFixedTypedLenTagMin   = byte(0x70)
-	_listFixedTypedLenTagMax   = byte(0x77)
-	_listFixedUntypedLenTagMin = byte(0x78)
-	_listFixedUntypedLenTagMax = byte(0x7f)
+	BC_LIST_VARIABLE         = byte(0x55)
+	BC_LIST_FIXED            = byte('V')
+	BC_LIST_VARIABLE_UNTYPED = byte(0x57)
+	BC_LIST_FIXED_UNTYPED    = byte(0x58)
 
 	BC_LIST_DIRECT         = byte(0x70)
 	BC_LIST_DIRECT_UNTYPED = byte(0x78)
diff --git a/protocol/dubbo/impl/hessian.go b/protocol/dubbo/impl/hessian.go
index 066400d58bebdbf7cfc0f6e172e9e1537a95ae1c..e355276c37f9d1babc12f7e3b694ec7a193aed80 100644
--- a/protocol/dubbo/impl/hessian.go
+++ b/protocol/dubbo/impl/hessian.go
@@ -37,8 +37,6 @@ import (
 	"github.com/apache/dubbo-go/common/logger"
 )
 
-type Object interface{}
-
 type HessianSerializer struct {
 }
 
@@ -65,7 +63,7 @@ func marshalResponse(encoder *hessian.Encoder, p DubboPackage) ([]byte, error) {
 	response := EnsureResponsePayload(p.Body)
 	if header.ResponseStatus == Response_OK {
 		if p.IsHeartBeat() {
-			encoder.Encode(nil)
+			_ = encoder.Encode(nil)
 		} else {
 			var version string
 			if attachmentVersion, ok := response.Attachments[DUBBO_VERSION_KEY]; ok {
@@ -85,30 +83,30 @@ func marshalResponse(encoder *hessian.Encoder, p DubboPackage) ([]byte, error) {
 			}
 
 			if response.Exception != nil { // throw error
-				encoder.Encode(resWithException)
+				_ = encoder.Encode(resWithException)
 				if t, ok := response.Exception.(java_exception.Throwabler); ok {
-					encoder.Encode(t)
+					_ = encoder.Encode(t)
 				} else {
-					encoder.Encode(java_exception.NewThrowable(response.Exception.Error()))
+					_ = encoder.Encode(java_exception.NewThrowable(response.Exception.Error()))
 				}
 			} else {
 				if response.RspObj == nil {
-					encoder.Encode(resNullValue)
+					_ = encoder.Encode(resNullValue)
 				} else {
-					encoder.Encode(resValue)
-					encoder.Encode(response.RspObj) // result
+					_ = encoder.Encode(resValue)
+					_ = encoder.Encode(response.RspObj) // result
 				}
 			}
 
 			if atta {
-				encoder.Encode(response.Attachments) // attachments
+				_ = encoder.Encode(response.Attachments) // attachments
 			}
 		}
 	} else {
 		if response.Exception != nil { // throw error
-			encoder.Encode(response.Exception.Error())
+			_ = encoder.Encode(response.Exception.Error())
 		} else {
-			encoder.Encode(response.RspObj)
+			_ = encoder.Encode(response.RspObj)
 		}
 	}
 	bs := encoder.Buffer()
@@ -120,10 +118,10 @@ func marshalResponse(encoder *hessian.Encoder, p DubboPackage) ([]byte, error) {
 func marshalRequest(encoder *hessian.Encoder, p DubboPackage) ([]byte, error) {
 	service := p.Service
 	request := EnsureRequestPayload(p.Body)
-	encoder.Encode(DEFAULT_DUBBO_PROTOCOL_VERSION)
-	encoder.Encode(service.Path)
-	encoder.Encode(service.Version)
-	encoder.Encode(service.Method)
+	_ = encoder.Encode(DEFAULT_DUBBO_PROTOCOL_VERSION)
+	_ = encoder.Encode(service.Path)
+	_ = encoder.Encode(service.Version)
+	_ = encoder.Encode(service.Method)
 
 	args, ok := request.Params.([]interface{})
 
@@ -135,9 +133,9 @@ func marshalRequest(encoder *hessian.Encoder, p DubboPackage) ([]byte, error) {
 	if err != nil {
 		return nil, perrors.Wrapf(err, " PackRequest(args:%+v)", args)
 	}
-	encoder.Encode(types)
+	_ = encoder.Encode(types)
 	for _, v := range args {
-		encoder.Encode(v)
+		_ = encoder.Encode(v)
 	}
 
 	request.Attachments[PATH_KEY] = service.Path
@@ -152,9 +150,8 @@ func marshalRequest(encoder *hessian.Encoder, p DubboPackage) ([]byte, error) {
 		request.Attachments[TIMEOUT_KEY] = strconv.Itoa(int(service.Timeout / time.Millisecond))
 	}
 
-	encoder.Encode(request.Attachments)
+	_ = encoder.Encode(request.Attachments)
 	return encoder.Buffer(), nil
-
 }
 
 var versionInt = make(map[string]int)
@@ -385,7 +382,7 @@ func buildServerSidePackageBody(pkg *DubboPackage) {
 			"dubboVersion": dubboVersion,
 			"argsTypes":    argsTypes,
 			"args":         args,
-			"service":      common.ServiceMap.GetService(DUBBO, svc.Path), // path as a key
+			"service":      common.ServiceMap.GetService(DUBBO, svc.Interface, svc.Group, svc.Version), // path as a key
 			"attachments":  attachments,
 		})
 	}
@@ -420,7 +417,7 @@ func getArgType(v interface{}) string {
 		return "V"
 	}
 
-	switch v.(type) {
+	switch v := v.(type) {
 	// Serialized tags for base types
 	case nil:
 		return "V"
@@ -474,7 +471,7 @@ func getArgType(v interface{}) string {
 		return "java.lang.String"
 	case []string:
 		return "[Ljava.lang.String;"
-	case []Object:
+	case []hessian.Object:
 		return "[Ljava.lang.Object;"
 	case map[interface{}]interface{}:
 		// return  "java.util.HashMap"
diff --git a/protocol/dubbo/opentracing.go b/protocol/dubbo/opentracing.go
index 2dcd6a4d0d9f491ba6d51ea7a3ba96812a6f9e08..f45e6fdc71af6279c2fadadd0576cde629a535e1 100644
--- a/protocol/dubbo/opentracing.go
+++ b/protocol/dubbo/opentracing.go
@@ -35,14 +35,6 @@ func injectTraceCtx(currentSpan opentracing.Span, inv *invocation_impl.RPCInvoca
 	return err
 }
 
-func extractTraceCtx(inv *invocation_impl.RPCInvocation) (opentracing.SpanContext, error) {
-	traceAttachments := filterContext(inv.Attachments())
-	// actually, if user do not use any opentracing framework, the err will not be nil.
-	spanCtx, err := opentracing.GlobalTracer().Extract(opentracing.TextMap,
-		opentracing.TextMapCarrier(traceAttachments))
-	return spanCtx, err
-}
-
 func filterContext(attachments map[string]interface{}) map[string]string {
 	var traceAttchment = make(map[string]string)
 	for k, v := range attachments {
diff --git a/protocol/grpc/client.go b/protocol/grpc/client.go
index 33f0a088dcd6800ce7376faa3d5e05ab5d62596d..24ab125625465068e90f2b0d96033b6fc3ffd2f6 100644
--- a/protocol/grpc/client.go
+++ b/protocol/grpc/client.go
@@ -93,15 +93,15 @@ type Client struct {
 func NewClient(url *common.URL) *Client {
 	// if global trace instance was set , it means trace function enabled. If not , will return Nooptracer
 	tracer := opentracing.GlobalTracer()
-	dailOpts := make([]grpc.DialOption, 0, 4)
+	dialOpts := make([]grpc.DialOption, 0, 4)
 	maxMessageSize, _ := strconv.Atoi(url.GetParam(constant.MESSAGE_SIZE_KEY, "4"))
-	dailOpts = append(dailOpts, grpc.WithInsecure(), grpc.WithBlock(), grpc.WithUnaryInterceptor(
+	dialOpts = append(dialOpts, grpc.WithInsecure(), grpc.WithBlock(), grpc.WithUnaryInterceptor(
 		otgrpc.OpenTracingClientInterceptor(tracer, otgrpc.LogPayloads())),
 		grpc.WithDefaultCallOptions(
 			grpc.CallContentSubtype(clientConf.ContentSubType),
 			grpc.MaxCallRecvMsgSize(1024*1024*maxMessageSize),
 			grpc.MaxCallSendMsgSize(1024*1024*maxMessageSize)))
-	conn, err := grpc.Dial(url.Location, dailOpts...)
+	conn, err := grpc.Dial(url.Location, dialOpts...)
 	if err != nil {
 		panic(err)
 	}
diff --git a/protocol/grpc/grpc_exporter.go b/protocol/grpc/grpc_exporter.go
index 0dc764854d61576892800180041c53f0a7735c7c..5beb4fedb1aa0285288d5b2b52515d4f6b9498e8 100644
--- a/protocol/grpc/grpc_exporter.go
+++ b/protocol/grpc/grpc_exporter.go
@@ -42,10 +42,9 @@ func NewGrpcExporter(key string, invoker protocol.Invoker, exporterMap *sync.Map
 
 // Unexport and unregister gRPC service from registry and memory.
 func (gg *GrpcExporter) Unexport() {
-	serviceId := gg.GetInvoker().GetUrl().GetParam(constant.BEAN_NAME_KEY, "")
 	interfaceName := gg.GetInvoker().GetUrl().GetParam(constant.INTERFACE_KEY, "")
 	gg.BaseExporter.Unexport()
-	err := common.ServiceMap.UnRegister(interfaceName, GRPC, serviceId)
+	err := common.ServiceMap.UnRegister(interfaceName, GRPC, gg.GetInvoker().GetUrl().ServiceKey())
 	if err != nil {
 		logger.Errorf("[GrpcExporter.Unexport] error: %v", err)
 	}
diff --git a/protocol/grpc/grpc_invoker.go b/protocol/grpc/grpc_invoker.go
index 02e7716115e6bb22f3de5a8c4d8a2131995e81c6..7b33c6704db7a365bb81a1ab5bef31f220378380 100644
--- a/protocol/grpc/grpc_invoker.go
+++ b/protocol/grpc/grpc_invoker.go
@@ -24,46 +24,88 @@ import (
 )
 
 import (
+	hessian2 "github.com/apache/dubbo-go-hessian2"
 	"github.com/pkg/errors"
 	"google.golang.org/grpc/connectivity"
 )
 
 import (
-	hessian2 "github.com/apache/dubbo-go-hessian2"
-
 	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/logger"
 	"github.com/apache/dubbo-go/protocol"
 )
 
-var errNoReply = errors.New("request need @response")
+var (
+	errNoReply = errors.New("request need @response")
+)
 
 // nolint
 type GrpcInvoker struct {
 	protocol.BaseInvoker
-	quitOnce sync.Once
-	client   *Client
+	quitOnce    sync.Once
+	clientGuard *sync.RWMutex
+	client      *Client
 }
 
 // NewGrpcInvoker returns a Grpc invoker instance
 func NewGrpcInvoker(url *common.URL, client *Client) *GrpcInvoker {
 	return &GrpcInvoker{
 		BaseInvoker: *protocol.NewBaseInvoker(url),
+		clientGuard: &sync.RWMutex{},
 		client:      client,
 	}
 }
 
+func (gi *GrpcInvoker) setClient(client *Client) {
+	gi.clientGuard.Lock()
+	defer gi.clientGuard.Unlock()
+
+	gi.client = client
+}
+
+func (gi *GrpcInvoker) getClient() *Client {
+	gi.clientGuard.RLock()
+	defer gi.clientGuard.RUnlock()
+
+	return gi.client
+}
+
 // Invoke is used to call service method by invocation
 func (gi *GrpcInvoker) Invoke(ctx context.Context, invocation protocol.Invocation) protocol.Result {
 	var (
 		result protocol.RPCResult
 	)
 
+	if !gi.BaseInvoker.IsAvailable() {
+		// Generally, the case will not happen, because the invoker has been removed
+		// from the invoker list before destroy,so no new request will enter the destroyed invoker
+		logger.Warnf("this grpcInvoker is destroyed")
+		result.Err = protocol.ErrDestroyedInvoker
+		return &result
+	}
+
+	gi.clientGuard.RLock()
+	defer gi.clientGuard.RUnlock()
+
+	if gi.client == nil {
+		result.Err = protocol.ErrClientClosed
+		return &result
+	}
+
+	if !gi.BaseInvoker.IsAvailable() {
+		// Generally, the case will not happen, because the invoker has been removed
+		// from the invoker list before destroy,so no new request will enter the destroyed invoker
+		logger.Warnf("this grpcInvoker is destroying")
+		result.Err = protocol.ErrDestroyedInvoker
+		return &result
+	}
+
 	if invocation.Reply() == nil {
 		result.Err = errNoReply
 	}
 
 	var in []reflect.Value
-	in = append(in, reflect.ValueOf(context.Background()))
+	in = append(in, reflect.ValueOf(ctx))
 	in = append(in, invocation.ParameterValues()...)
 
 	methodName := invocation.MethodName()
@@ -83,21 +125,32 @@ func (gi *GrpcInvoker) Invoke(ctx context.Context, invocation protocol.Invocatio
 
 // IsAvailable get available status
 func (gi *GrpcInvoker) IsAvailable() bool {
-	return gi.BaseInvoker.IsAvailable() && gi.client.GetState() != connectivity.Shutdown
+	client := gi.getClient()
+	if client != nil {
+		return gi.BaseInvoker.IsAvailable() && client.GetState() != connectivity.Shutdown
+	}
+
+	return false
 }
 
 // IsDestroyed get destroyed status
 func (gi *GrpcInvoker) IsDestroyed() bool {
-	return gi.BaseInvoker.IsDestroyed() && gi.client.GetState() == connectivity.Shutdown
+	client := gi.getClient()
+	if client != nil {
+		return gi.BaseInvoker.IsDestroyed() && client.GetState() == connectivity.Shutdown
+	}
+
+	return false
 }
 
 // Destroy will destroy gRPC's invoker and client, so it is only called once
 func (gi *GrpcInvoker) Destroy() {
 	gi.quitOnce.Do(func() {
 		gi.BaseInvoker.Destroy()
-
-		if gi.client != nil {
-			_ = gi.client.Close()
+		client := gi.getClient()
+		if client != nil {
+			gi.setClient(nil)
+			client.Close()
 		}
 	})
 }
diff --git a/protocol/grpc/protoc-gen-dubbo/main.go b/protocol/grpc/protoc-gen-dubbo/main.go
index fbcfa6f9d492afa8bc7848c733358b3cf7223e99..fe3e38dddd8bfc2a30ed89e6088516cad120ef79 100644
--- a/protocol/grpc/protoc-gen-dubbo/main.go
+++ b/protocol/grpc/protoc-gen-dubbo/main.go
@@ -43,7 +43,7 @@ func main() {
 		g.Error(err, "reading input")
 	}
 
-	if err := proto.Unmarshal(data, g.Request); err != nil {
+	if err = proto.Unmarshal(data, g.Request); err != nil {
 		g.Error(err, "parsing input proto")
 	}
 
diff --git a/protocol/grpc/protoc-gen-dubbo/plugin/dubbo/dubbo.go b/protocol/grpc/protoc-gen-dubbo/plugin/dubbo/dubbo.go
index a9f50e82879e1d6448300ec7b2a92e2a68070dc8..ba84f36b74016f1495fa7d616315deda7c54bbcc 100644
--- a/protocol/grpc/protoc-gen-dubbo/plugin/dubbo/dubbo.go
+++ b/protocol/grpc/protoc-gen-dubbo/plugin/dubbo/dubbo.go
@@ -28,19 +28,11 @@ import (
 	"github.com/golang/protobuf/protoc-gen-go/generator"
 )
 
-// generatedCodeVersion indicates a version of the generated code.
-// It is incremented whenever an incompatibility between the generated code and
-// the grpc package is introduced; the generated code references
-// a constant, grpc.SupportPackageIsVersionN (where N is generatedCodeVersion).
-const generatedCodeVersion = 4
-
 // Paths for packages used by code generated in this file,
 // relative to the import_prefix of the generator.Generator.
 const (
 	contextPkgPath = "context"
 	grpcPkgPath    = "google.golang.org/grpc"
-	codePkgPath    = "google.golang.org/grpc/codes"
-	statusPkgPath  = "google.golang.org/grpc/status"
 )
 
 func init() {
@@ -262,8 +254,8 @@ func (g *dubboGrpc) generateClientSignature(servName string, method *pb.MethodDe
 	return fmt.Sprintf("%s func(ctx %s.Context%s, %s) error", methName, contextPkg, reqArg, respName)
 }
 
-func (g *dubboGrpc) generateClientMethod(servName, fullServName, serviceDescVar string, method *pb.MethodDescriptorProto, descExpr string) {
-}
+//func (g *dubboGrpc) generateClientMethod(servName, fullServName, serviceDescVar string, method *pb.MethodDescriptorProto, descExpr string) {
+//}
 
 func (g *dubboGrpc) generateServerMethod(servName, fullServName string, method *pb.MethodDescriptorProto) string {
 	methName := generator.CamelCase(method.GetName())
@@ -281,7 +273,7 @@ func (g *dubboGrpc) generateServerMethod(servName, fullServName string, method *
 		g.P(`invo := invocation.NewRPCInvocation("`, methName, `", args, nil)`)
 
 		g.P("if interceptor == nil {")
-		g.P("result := base.GetProxyImpl().Invoke(context.Background(), invo)")
+		g.P("result := base.GetProxyImpl().Invoke(ctx, invo)")
 		g.P("return result.Result(), result.Error()")
 		g.P("}")
 
@@ -291,7 +283,7 @@ func (g *dubboGrpc) generateServerMethod(servName, fullServName string, method *
 		g.P("}")
 
 		g.P("handler := func(ctx ", contextPkg, ".Context, req interface{}) (interface{}, error) {")
-		g.P("result := base.GetProxyImpl().Invoke(context.Background(), invo)")
+		g.P("result := base.GetProxyImpl().Invoke(ctx, invo)")
 		g.P("return result.Result(), result.Error()")
 		g.P("}")
 
diff --git a/protocol/invocation.go b/protocol/invocation.go
index 452f619e2dd9a5835141d91d7adfed37bb9f6859..2ecc817cc91e08fb6be10a0348477943d05bb1e3 100644
--- a/protocol/invocation.go
+++ b/protocol/invocation.go
@@ -25,6 +25,8 @@ import (
 type Invocation interface {
 	// MethodName gets invocation method name.
 	MethodName() string
+	// ParameterTypeNames gets invocation parameter type names.
+	ParameterTypeNames() []string
 	// ParameterTypes gets invocation parameter types.
 	ParameterTypes() []reflect.Type
 	// ParameterValues gets invocation parameter values.
diff --git a/protocol/invocation/rpcinvocation.go b/protocol/invocation/rpcinvocation.go
index 4e806324bf7b236d80a932a92898ba117fb1638d..ec68ca38991df1c1eae88f3ea64cca34c6981804 100644
--- a/protocol/invocation/rpcinvocation.go
+++ b/protocol/invocation/rpcinvocation.go
@@ -35,8 +35,11 @@ import (
 // todo: is it necessary to separate fields of consumer(provider) from RPCInvocation
 // nolint
 type RPCInvocation struct {
-	methodName      string
-	parameterTypes  []reflect.Type
+	methodName string
+	// Parameter Type Names. It is used to specify the parameterType
+	parameterTypeNames []string
+	parameterTypes     []reflect.Type
+
 	parameterValues []reflect.Value
 	arguments       []interface{}
 	reply           interface{}
@@ -80,6 +83,11 @@ func (r *RPCInvocation) ParameterTypes() []reflect.Type {
 	return r.parameterTypes
 }
 
+// ParameterTypeNames gets RPC invocation parameter types of string expression.
+func (r *RPCInvocation) ParameterTypeNames() []string {
+	return r.parameterTypeNames
+}
+
 // ParameterValues gets RPC invocation parameter values.
 func (r *RPCInvocation) ParameterValues() []reflect.Value {
 	return r.parameterValues
@@ -213,6 +221,18 @@ func WithParameterTypes(parameterTypes []reflect.Type) option {
 	}
 }
 
+// WithParameterTypeNames creates option with @parameterTypeNames.
+func WithParameterTypeNames(parameterTypeNames []string) option {
+	return func(invo *RPCInvocation) {
+		if len(parameterTypeNames) == 0 {
+			return
+		}
+		parameterTypeNamesTmp := make([]string, len(parameterTypeNames))
+		copy(parameterTypeNamesTmp, parameterTypeNames)
+		invo.parameterTypeNames = parameterTypeNamesTmp
+	}
+}
+
 // WithParameterValues creates option with @parameterValues
 func WithParameterValues(parameterValues []reflect.Value) option {
 	return func(invo *RPCInvocation) {
diff --git a/protocol/invoker.go b/protocol/invoker.go
index 5657b6b5b2c6d13e001bec2ba3ca7b4f02fc7e60..e799991686a954a3f8d84ee38b58c2be35c50789 100644
--- a/protocol/invoker.go
+++ b/protocol/invoker.go
@@ -21,11 +21,25 @@ import (
 	"context"
 )
 
+import (
+	perrors "github.com/pkg/errors"
+	uatomic "go.uber.org/atomic"
+)
+
 import (
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/common/logger"
 )
 
+var (
+	// ErrClientClosed means client has clossed.
+	ErrClientClosed = perrors.New("remoting client has closed")
+	// ErrNoReply
+	ErrNoReply = perrors.New("request need @response")
+	// ErrDestroyedInvoker
+	ErrDestroyedInvoker = perrors.New("request Destroyed invoker")
+)
+
 // Invoker the service invocation interface for the consumer
 //go:generate mockgen -source invoker.go -destination mock/mock_invoker.go  -self_package github.com/apache/dubbo-go/protocol/mock --package mock  Invoker
 // Extension - Invoker
@@ -42,17 +56,19 @@ type Invoker interface {
 // BaseInvoker provides default invoker implement
 type BaseInvoker struct {
 	url       *common.URL
-	available bool
-	destroyed bool
+	available uatomic.Bool
+	destroyed uatomic.Bool
 }
 
 // NewBaseInvoker creates a new BaseInvoker
 func NewBaseInvoker(url *common.URL) *BaseInvoker {
-	return &BaseInvoker{
-		url:       url,
-		available: true,
-		destroyed: false,
+	ivk := &BaseInvoker{
+		url: url,
 	}
+	ivk.available.Store(true)
+	ivk.destroyed.Store(false)
+
+	return ivk
 }
 
 // GetUrl gets base invoker URL
@@ -62,12 +78,12 @@ func (bi *BaseInvoker) GetUrl() *common.URL {
 
 // IsAvailable gets available flag
 func (bi *BaseInvoker) IsAvailable() bool {
-	return bi.available
+	return bi.available.Load()
 }
 
 // IsDestroyed gets destroyed flag
 func (bi *BaseInvoker) IsDestroyed() bool {
-	return bi.destroyed
+	return bi.destroyed.Load()
 }
 
 // Invoke provides default invoker implement
@@ -77,7 +93,7 @@ func (bi *BaseInvoker) Invoke(context context.Context, invocation Invocation) Re
 
 // Destroy changes available and destroyed flag
 func (bi *BaseInvoker) Destroy() {
-	logger.Infof("Destroy invoker: %s", bi.GetUrl().String())
-	bi.destroyed = true
-	bi.available = false
+	logger.Infof("Destroy invoker: %s", bi.GetUrl())
+	bi.destroyed.Store(true)
+	bi.available.Store(false)
 }
diff --git a/protocol/invoker_test.go b/protocol/invoker_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..c2a587dc99a1be883de7431feb7e25d552ebce2b
--- /dev/null
+++ b/protocol/invoker_test.go
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package protocol
+
+import (
+	"testing"
+)
+
+import (
+	"github.com/stretchr/testify/assert"
+)
+
+import (
+	"github.com/apache/dubbo-go/common"
+)
+
+func TestBaseInvoker(t *testing.T) {
+	url, err := common.NewURL("dubbo://localhost:9090")
+	assert.Nil(t, err)
+
+	ivk := NewBaseInvoker(url)
+	assert.NotNil(t, ivk.GetUrl())
+	assert.True(t, ivk.IsAvailable())
+	assert.False(t, ivk.IsDestroyed())
+
+	ivk.Destroy()
+	assert.False(t, ivk.IsAvailable())
+	assert.True(t, ivk.IsDestroyed())
+}
diff --git a/protocol/jsonrpc/http.go b/protocol/jsonrpc/http.go
index 869617ea4eb512df6287d21e9d811145c1944e57..11051df8ac05010e9e07fe14d44768dda9342201 100644
--- a/protocol/jsonrpc/http.go
+++ b/protocol/jsonrpc/http.go
@@ -49,14 +49,14 @@ import (
 
 // Request is HTTP protocol request
 type Request struct {
-	ID          int64
-	group       string
-	protocol    string
-	version     string
-	service     string
-	method      string
-	args        interface{}
-	contentType string
+	ID       int64
+	group    string
+	protocol string
+	version  string
+	service  string
+	method   string
+	args     interface{}
+	//contentType string
 }
 
 // ////////////////////////////////////////////
@@ -181,15 +181,17 @@ func (c *HTTPClient) Do(addr, path string, httpHeader http.Header, body []byte)
 		return nil, perrors.WithStack(err)
 	}
 	defer tcpConn.Close()
-	setNetConnTimeout := func(conn net.Conn, timeout time.Duration) {
+	setNetConnTimeout := func(conn net.Conn, timeout time.Duration) error {
 		t := time.Time{}
 		if timeout > time.Duration(0) {
 			t = time.Now().Add(timeout)
 		}
 
-		conn.SetDeadline(t)
+		return conn.SetDeadline(t)
+	}
+	if err = setNetConnTimeout(tcpConn, c.options.HTTPTimeout); err != nil {
+		return nil, err
 	}
-	setNetConnTimeout(tcpConn, c.options.HTTPTimeout)
 
 	if _, err = reqBuf.WriteTo(tcpConn); err != nil {
 		return nil, perrors.WithStack(err)
diff --git a/protocol/jsonrpc/http_test.go b/protocol/jsonrpc/http_test.go
index 4a9645e828a3b092c938c62091fb400b05605b67..5ef40649b1fcb209f29d9bbe871e47b1fcda8a59 100644
--- a/protocol/jsonrpc/http_test.go
+++ b/protocol/jsonrpc/http_test.go
@@ -44,12 +44,12 @@ type (
 	}
 
 	UserProvider struct {
-		user map[string]User
+		//user map[string]User
 	}
 )
 
 const (
-	mockJsonCommonUrl = "jsonrpc://127.0.0.1:20001/UserProvider?anyhost=true&" +
+	mockJsonCommonUrl = "jsonrpc://127.0.0.1:20001/com.ikurento.user.UserProvider?anyhost=true&" +
 		"application=BDTService&category=providers&default.timeout=10000&dubbo=dubbo-provider-golang-1.0.0&" +
 		"environment=dev&interface=com.ikurento.user.UserProvider&ip=192.168.56.1&methods=GetUser%2C&" +
 		"module=dubbogo+user-info+server&org=ikurento.com&owner=ZX&pid=1447&revision=0.0.1&" +
@@ -58,7 +58,7 @@ const (
 
 func TestHTTPClientCall(t *testing.T) {
 
-	methods, err := common.ServiceMap.Register("com.ikurento.user.UserProvider", "jsonrpc", &UserProvider{})
+	methods, err := common.ServiceMap.Register("com.ikurento.user.UserProvider", "jsonrpc", "", "", &UserProvider{})
 	assert.NoError(t, err)
 	assert.Equal(t, "GetUser,GetUser0,GetUser1,GetUser2,GetUser3,GetUser4", methods)
 
diff --git a/protocol/jsonrpc/json.go b/protocol/jsonrpc/json.go
index 506c4c953b1b1113b43669171efdeeaeb6fca10d..81ca512271baa19a103b42c059ba63fd14513377 100644
--- a/protocol/jsonrpc/json.go
+++ b/protocol/jsonrpc/json.go
@@ -48,13 +48,11 @@ type CodecData struct {
 const (
 	// Errors defined in the JSON-RPC spec. See
 	// http://www.jsonrpc.org/specification#error_object.
-	CodeParseError       = -32700
-	CodeInvalidRequest   = -32600
-	CodeMethodNotFound   = -32601
-	CodeInvalidParams    = -32602
-	CodeInternalError    = -32603
-	codeServerErrorStart = -32099
-	codeServerErrorEnd   = -32000
+	CodeParseError     = -32700
+	CodeInvalidRequest = -32600
+	CodeMethodNotFound = -32601
+	CodeInvalidParams  = -32602
+	CodeInternalError  = -32603
 )
 
 // Error response Error
diff --git a/protocol/jsonrpc/jsonrpc_exporter.go b/protocol/jsonrpc/jsonrpc_exporter.go
index 6f75f6aeae9fb1a8d75ded5f558e0ddae84686a0..6b91d266a704d928bf1a308a79044055c9a64328 100644
--- a/protocol/jsonrpc/jsonrpc_exporter.go
+++ b/protocol/jsonrpc/jsonrpc_exporter.go
@@ -42,10 +42,9 @@ func NewJsonrpcExporter(key string, invoker protocol.Invoker, exporterMap *sync.
 
 // Unexport exported JSON RPC service.
 func (je *JsonrpcExporter) Unexport() {
-	serviceId := je.GetInvoker().GetUrl().GetParam(constant.BEAN_NAME_KEY, "")
 	interfaceName := je.GetInvoker().GetUrl().GetParam(constant.INTERFACE_KEY, "")
 	je.BaseExporter.Unexport()
-	err := common.ServiceMap.UnRegister(interfaceName, JSONRPC, serviceId)
+	err := common.ServiceMap.UnRegister(interfaceName, JSONRPC, je.GetInvoker().GetUrl().ServiceKey())
 	if err != nil {
 		logger.Errorf("[JsonrpcExporter.Unexport] error: %v", err)
 	}
diff --git a/protocol/jsonrpc/jsonrpc_invoker.go b/protocol/jsonrpc/jsonrpc_invoker.go
index f10aaad824cea9c953cf994bd7349b57f6bfffa8..357443f5d4efbe5159fb6c0e09d3dab51266dc73 100644
--- a/protocol/jsonrpc/jsonrpc_invoker.go
+++ b/protocol/jsonrpc/jsonrpc_invoker.go
@@ -45,10 +45,7 @@ func NewJsonrpcInvoker(url *common.URL, client *HTTPClient) *JsonrpcInvoker {
 
 // Invoke the JSON RPC invocation and return result.
 func (ji *JsonrpcInvoker) Invoke(ctx context.Context, invocation protocol.Invocation) protocol.Result {
-
-	var (
-		result protocol.RPCResult
-	)
+	var result protocol.RPCResult
 
 	inv := invocation.(*invocation_impl.RPCInvocation)
 	url := ji.GetUrl()
diff --git a/protocol/jsonrpc/jsonrpc_invoker_test.go b/protocol/jsonrpc/jsonrpc_invoker_test.go
index d7124ca07c6ba6d79dc72e7fb6bd98cd4b3a97b2..12a57052eba6e3a2af1b7cfb15e6ab368a7da286 100644
--- a/protocol/jsonrpc/jsonrpc_invoker_test.go
+++ b/protocol/jsonrpc/jsonrpc_invoker_test.go
@@ -36,13 +36,13 @@ import (
 
 func TestJsonrpcInvokerInvoke(t *testing.T) {
 
-	methods, err := common.ServiceMap.Register("UserProvider", "jsonrpc", &UserProvider{})
+	methods, err := common.ServiceMap.Register("com.ikurento.user.UserProvider", "jsonrpc", "", "", &UserProvider{})
 	assert.NoError(t, err)
 	assert.Equal(t, "GetUser,GetUser0,GetUser1,GetUser2,GetUser3,GetUser4", methods)
 
 	// Export
 	proto := GetProtocol()
-	url, err := common.NewURL("jsonrpc://127.0.0.1:20001/UserProvider?anyhost=true&" +
+	url, err := common.NewURL("jsonrpc://127.0.0.1:20001/com.ikurento.user.UserProvider?anyhost=true&" +
 		"application=BDTService&category=providers&default.timeout=10000&dubbo=dubbo-provider-golang-1.0.0&" +
 		"environment=dev&interface=com.ikurento.user.UserProvider&ip=192.168.56.1&methods=GetUser%2C&" +
 		"module=dubbogo+user-info+server&org=ikurento.com&owner=ZX&pid=1447&revision=0.0.1&" +
diff --git a/protocol/jsonrpc/server.go b/protocol/jsonrpc/server.go
index 755aa7da79384842d5a3f3c4364fc991d84b47df..76901bff6e62748e103d8691f75aedcf68dd202a 100644
--- a/protocol/jsonrpc/server.go
+++ b/protocol/jsonrpc/server.go
@@ -92,7 +92,9 @@ func (s *Server) handlePkg(conn net.Conn) {
 			t = time.Now().Add(timeout)
 		}
 
-		conn.SetDeadline(t)
+		if err := conn.SetDeadline(t); err != nil {
+			logger.Error("connection.SetDeadline(t:%v) = error:%v", t, err)
+		}
 	}
 
 	sendErrorResp := func(header http.Header, body []byte) error {
@@ -239,7 +241,9 @@ func (s *Server) Start(url *common.URL) {
 
 	s.wg.Add(1)
 	go func() {
-		accept(listener, func(conn net.Conn) { s.handlePkg(conn) })
+		if err := accept(listener, func(conn net.Conn) { s.handlePkg(conn) }); err != nil {
+			logger.Error("accept() = error:%v", err)
+		}
 		s.wg.Done()
 	}()
 
diff --git a/protocol/protocolwrapper/mock_protocol_filter.go b/protocol/protocolwrapper/mock_protocol_filter.go
index 18a4e1562107939e9c72090778422e0d8bb56a60..d1baba813416ff688c5f9ccccf05e276c55c2bba 100644
--- a/protocol/protocolwrapper/mock_protocol_filter.go
+++ b/protocol/protocolwrapper/mock_protocol_filter.go
@@ -45,5 +45,4 @@ func (pfw *mockProtocolFilter) Refer(url *common.URL) protocol.Invoker {
 
 // Destroy will do nothing
 func (pfw *mockProtocolFilter) Destroy() {
-	return
 }
diff --git a/protocol/protocolwrapper/protocol_filter_wrapper.go b/protocol/protocolwrapper/protocol_filter_wrapper.go
index 79d2cf7f55ee81db39ea28448fc66a8a7494d8d1..448bd6f5a90ae0fe3732845d9ce9e2fa238e8e74 100644
--- a/protocol/protocolwrapper/protocol_filter_wrapper.go
+++ b/protocol/protocolwrapper/protocol_filter_wrapper.go
@@ -59,7 +59,11 @@ func (pfw *ProtocolFilterWrapper) Refer(url *common.URL) protocol.Invoker {
 	if pfw.protocol == nil {
 		pfw.protocol = extension.GetProtocol(url.Protocol)
 	}
-	return buildInvokerChain(pfw.protocol.Refer(url), constant.REFERENCE_FILTER_KEY)
+	invoker := pfw.protocol.Refer(url)
+	if invoker == nil {
+		return nil
+	}
+	return buildInvokerChain(invoker, constant.REFERENCE_FILTER_KEY)
 }
 
 // Destroy will destroy all invoker and exporter.
@@ -77,7 +81,7 @@ func buildInvokerChain(invoker protocol.Invoker, key string) protocol.Invoker {
 	// The order of filters is from left to right, so loading from right to left
 	next := invoker
 	for i := len(filterNames) - 1; i >= 0; i-- {
-		flt := extension.GetFilter(filterNames[i])
+		flt := extension.GetFilter(strings.TrimSpace(filterNames[i]))
 		fi := &FilterInvoker{next: next, invoker: invoker, filter: flt}
 		next = fi
 	}
diff --git a/protocol/protocolwrapper/protocol_filter_wrapper_test.go b/protocol/protocolwrapper/protocol_filter_wrapper_test.go
index 8f063f85521bbdcd3fa3891e7d09754fc9b58ac7..b37d066f03c8084d2d529217567c1ede940a5491 100644
--- a/protocol/protocolwrapper/protocol_filter_wrapper_test.go
+++ b/protocol/protocolwrapper/protocol_filter_wrapper_test.go
@@ -42,7 +42,7 @@ func TestProtocolFilterWrapperExport(t *testing.T) {
 
 	u := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
-		common.WithParamsValue(constant.SERVICE_FILTER_KEY, "echo"))
+		common.WithParamsValue(constant.SERVICE_FILTER_KEY, "echo "))
 	exporter := filtProto.Export(protocol.NewBaseInvoker(u))
 	_, ok := exporter.GetInvoker().(*FilterInvoker)
 	assert.True(t, ok)
@@ -54,7 +54,7 @@ func TestProtocolFilterWrapperRefer(t *testing.T) {
 
 	u := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
-		common.WithParamsValue(constant.REFERENCE_FILTER_KEY, "echo"))
+		common.WithParamsValue(constant.REFERENCE_FILTER_KEY, " echo"))
 	invoker := filtProto.Refer(u)
 	_, ok := invoker.(*FilterInvoker)
 	assert.True(t, ok)
diff --git a/protocol/rest/config/reader/rest_config_reader.go b/protocol/rest/config/reader/rest_config_reader.go
index 873af9924b5644158024b22c24aa9eebbf1bf187..2338790ea9926b1ddbf44fc476f092156d8fe2fa 100644
--- a/protocol/rest/config/reader/rest_config_reader.go
+++ b/protocol/rest/config/reader/rest_config_reader.go
@@ -62,7 +62,7 @@ func (cr *RestConfigReader) ReadConsumerConfig(reader *bytes.Buffer) error {
 	for key, rc := range restConsumerConfig.RestServiceConfigsMap {
 		rc.Client = getNotEmptyStr(rc.Client, restConsumerConfig.Client, constant.DEFAULT_REST_CLIENT)
 		rc.RestMethodConfigsMap = initMethodConfigMap(rc, restConsumerConfig.Consumes, restConsumerConfig.Produces)
-		restConsumerServiceConfigMap[strings.TrimPrefix(key, "/")] = rc
+		restConsumerServiceConfigMap[key] = rc
 	}
 	config.SetRestConsumerServiceConfigMap(restConsumerServiceConfigMap)
 	return nil
@@ -79,7 +79,7 @@ func (cr *RestConfigReader) ReadProviderConfig(reader *bytes.Buffer) error {
 	for key, rc := range restProviderConfig.RestServiceConfigsMap {
 		rc.Server = getNotEmptyStr(rc.Server, restProviderConfig.Server, constant.DEFAULT_REST_SERVER)
 		rc.RestMethodConfigsMap = initMethodConfigMap(rc, restProviderConfig.Consumes, restProviderConfig.Produces)
-		restProviderServiceConfigMap[strings.TrimPrefix(key, "/")] = rc
+		restProviderServiceConfigMap[key] = rc
 	}
 	config.SetRestProviderServiceConfigMap(restProviderServiceConfigMap)
 	return nil
diff --git a/protocol/rest/config/rest_config.go b/protocol/rest/config/rest_config.go
index 4732dd8e4eae3ba874fdd8ed95380e6ace3ab66d..27c67db12d1477470550a2f75779b25113781a04 100644
--- a/protocol/rest/config/rest_config.go
+++ b/protocol/rest/config/rest_config.go
@@ -123,13 +123,13 @@ func (c *RestMethodConfig) UnmarshalYAML(unmarshal func(interface{}) error) erro
 }
 
 // nolint
-func GetRestConsumerServiceConfig(path string) *RestServiceConfig {
-	return restConsumerServiceConfigMap[path]
+func GetRestConsumerServiceConfig(id string) *RestServiceConfig {
+	return restConsumerServiceConfigMap[id]
 }
 
 // nolint
-func GetRestProviderServiceConfig(path string) *RestServiceConfig {
-	return restProviderServiceConfigMap[path]
+func GetRestProviderServiceConfig(id string) *RestServiceConfig {
+	return restProviderServiceConfigMap[id]
 }
 
 // nolint
diff --git a/protocol/rest/rest_exporter.go b/protocol/rest/rest_exporter.go
index 359506a842437ba15c121c29b50478ae775a8ed7..7a49a2063559c2f4e9b4975bc86ea708abbfb026 100644
--- a/protocol/rest/rest_exporter.go
+++ b/protocol/rest/rest_exporter.go
@@ -42,10 +42,9 @@ func NewRestExporter(key string, invoker protocol.Invoker, exporterMap *sync.Map
 
 // Unexport unexport the RestExporter
 func (re *RestExporter) Unexport() {
-	serviceId := re.GetInvoker().GetUrl().GetParam(constant.BEAN_NAME_KEY, "")
 	interfaceName := re.GetInvoker().GetUrl().GetParam(constant.INTERFACE_KEY, "")
 	re.BaseExporter.Unexport()
-	err := common.ServiceMap.UnRegister(interfaceName, REST, serviceId)
+	err := common.ServiceMap.UnRegister(interfaceName, REST, re.GetInvoker().GetUrl().ServiceKey())
 	if err != nil {
 		logger.Errorf("[RestExporter.Unexport] error: %v", err)
 	}
diff --git a/protocol/rest/rest_invoker_test.go b/protocol/rest/rest_invoker_test.go
index 9df97a211e9d90daa3206b94926ceeac42df4606..b6bc9806534979976d8c52cd66142a71f408fb06 100644
--- a/protocol/rest/rest_invoker_test.go
+++ b/protocol/rest/rest_invoker_test.go
@@ -44,7 +44,7 @@ const (
 		"application=BDTService&category=providers&default.timeout=10000&dubbo=dubbo-provider-golang-1.0.0&" +
 		"environment=dev&interface=com.ikurento.user.UserProvider&ip=192.168.56.1&methods=GetUser%2C&" +
 		"module=dubbogo+user-info+server&org=ikurento.com&owner=ZX&pid=1447&revision=0.0.1&" +
-		"side=provider&timeout=3000&timestamp=1556509797245"
+		"side=provider&timeout=3000&timestamp=1556509797245&bean.name=com.ikurento.user.UserProvider"
 )
 
 func TestRestInvokerInvoke(t *testing.T) {
@@ -65,7 +65,7 @@ func TestRestInvokerInvoke(t *testing.T) {
 
 	url, err := common.NewURL(mockRestCommonUrl)
 	assert.NoError(t, err)
-	_, err = common.ServiceMap.Register("UserProvider", url.Protocol, &UserProvider{})
+	_, err = common.ServiceMap.Register(url.Service(), url.Protocol, "", "", &UserProvider{})
 	assert.NoError(t, err)
 	con := config.ProviderConfig{}
 	config.SetProviderConfig(con)
@@ -210,6 +210,6 @@ func TestRestInvokerInvoke(t *testing.T) {
 	assert.Error(t, res.Error(), "test error")
 
 	assert.Equal(t, filterNum, 12)
-	err = common.ServiceMap.UnRegister("UserProvider", url.Protocol, "com.ikurento.user.UserProvider")
+	err = common.ServiceMap.UnRegister(url.Service(), url.Protocol, url.ServiceKey())
 	assert.NoError(t, err)
 }
diff --git a/protocol/rest/rest_protocol.go b/protocol/rest/rest_protocol.go
index 05e119b0540b5f887d53d006e41d3083d1c46de4..d19bd002fc4974c57f50a8595ee25debceb27921 100644
--- a/protocol/rest/rest_protocol.go
+++ b/protocol/rest/rest_protocol.go
@@ -18,7 +18,6 @@
 package rest
 
 import (
-	"strings"
 	"sync"
 	"time"
 )
@@ -72,7 +71,8 @@ func (rp *RestProtocol) Export(invoker protocol.Invoker) protocol.Exporter {
 	url := invoker.GetUrl()
 	serviceKey := url.ServiceKey()
 	exporter := NewRestExporter(serviceKey, invoker, rp.ExporterMap())
-	restServiceConfig := rest_config.GetRestProviderServiceConfig(strings.TrimPrefix(url.Path, "/"))
+	id := url.GetParam(constant.BEAN_NAME_KEY, "")
+	restServiceConfig := rest_config.GetRestProviderServiceConfig(id)
 	if restServiceConfig == nil {
 		logger.Errorf("%s service doesn't has provider config", url.Path)
 		return nil
@@ -94,7 +94,8 @@ func (rp *RestProtocol) Refer(url *common.URL) protocol.Invoker {
 	if t, err := time.ParseDuration(requestTimeoutStr); err == nil {
 		requestTimeout = t
 	}
-	restServiceConfig := rest_config.GetRestConsumerServiceConfig(strings.TrimPrefix(url.Path, "/"))
+	id := url.GetParam(constant.BEAN_NAME_KEY, "")
+	restServiceConfig := rest_config.GetRestConsumerServiceConfig(id)
 	if restServiceConfig == nil {
 		logger.Errorf("%s service doesn't has consumer config", url.Path)
 		return nil
diff --git a/protocol/rest/rest_protocol_test.go b/protocol/rest/rest_protocol_test.go
index 9ff4e7df7fe41d7fd028bf476cc2192cf7cefcca..580fc61fd6cfda731184eed6f785b80abc9fccfe 100644
--- a/protocol/rest/rest_protocol_test.go
+++ b/protocol/rest/rest_protocol_test.go
@@ -72,7 +72,7 @@ func TestRestProtocolExport(t *testing.T) {
 	proto := GetRestProtocol()
 	url, err := common.NewURL(mockRestCommonUrl)
 	assert.NoError(t, err)
-	_, err = common.ServiceMap.Register("UserProvider", url.Protocol, &UserProvider{})
+	_, err = common.ServiceMap.Register(url.Service(), url.Protocol, "", "", &UserProvider{})
 	assert.NoError(t, err)
 	con := config.ProviderConfig{}
 	config.SetProviderConfig(con)
@@ -120,8 +120,6 @@ func TestRestProtocolExport(t *testing.T) {
 	proto.Destroy()
 	_, ok = proto.(*RestProtocol).serverMap[url.Location]
 	assert.False(t, ok)
-	err = common.ServiceMap.UnRegister("UserProvider", url.Protocol, "com.ikurento.user.UserProvider")
-	assert.NoError(t, err)
 }
 
 type UserProvider struct {
diff --git a/protocol/rest/server/rest_server.go b/protocol/rest/server/rest_server.go
index 5ef04ff336cadccddbcc952b272c2ba91507f4fb..b0bf0e07bdd2c1351b1d9c1f55187515e3cc852c 100644
--- a/protocol/rest/server/rest_server.go
+++ b/protocol/rest/server/rest_server.go
@@ -23,7 +23,6 @@ import (
 	"net/http"
 	"reflect"
 	"strconv"
-	"strings"
 )
 
 import (
@@ -90,7 +89,7 @@ func GetRouteFunc(invoker protocol.Invoker, methodConfig *rest_config.RestMethod
 			err  error
 			args []interface{}
 		)
-		svc := common.ServiceMap.GetService(invoker.GetUrl().Protocol, strings.TrimPrefix(invoker.GetUrl().Path, "/"))
+		svc := common.ServiceMap.GetServiceByServiceKey(invoker.GetUrl().Protocol, invoker.GetUrl().ServiceKey())
 		// get method
 		method := svc.Method()[methodConfig.MethodName]
 		argsTypes := method.ArgsType()
@@ -258,6 +257,7 @@ func assembleArgsFromQueryParams(methodConfig *rest_config.RestMethodConfig, arg
 		kind := t.Kind()
 		if kind == reflect.Ptr {
 			t = t.Elem()
+			kind = t.Kind()
 		}
 		if kind == reflect.Slice {
 			param = req.QueryParameters(v)
@@ -298,6 +298,7 @@ func assembleArgsFromPathParams(methodConfig *rest_config.RestMethodConfig, args
 		kind := t.Kind()
 		if kind == reflect.Ptr {
 			t = t.Elem()
+			kind = t.Kind()
 		}
 		if kind == reflect.Int {
 			param, err = strconv.Atoi(req.PathParameter(v))
diff --git a/protocol/rpc_status.go b/protocol/rpc_status.go
index 8d443e84f06b89ed708e080285aee3b054ea02e6..8fc5ddd76e84a7de87ba8a9f09aa2adfa09e434b 100644
--- a/protocol/rpc_status.go
+++ b/protocol/rpc_status.go
@@ -23,15 +23,28 @@ import (
 	"time"
 )
 
+import (
+	uberAtomic "go.uber.org/atomic"
+)
+
 import (
 	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
+	"github.com/apache/dubbo-go/common/logger"
 )
 
 var (
-	methodStatistics sync.Map // url -> { methodName : RPCStatus}
-	serviceStatistic sync.Map // url -> RPCStatus
+	methodStatistics    sync.Map        // url -> { methodName : RPCStatus}
+	serviceStatistic    sync.Map        // url -> RPCStatus
+	invokerBlackList    sync.Map        // store unhealthy url blackList
+	blackListCacheDirty uberAtomic.Bool // store if the cache in chain is not refreshed by blacklist
+	blackListRefreshing int32           // store if the refresing method is processing
 )
 
+func init() {
+	blackListCacheDirty.Store(false)
+}
+
 // RPCStatus is URL statistics.
 type RPCStatus struct {
 	active                        int32
@@ -181,4 +194,82 @@ func CleanAllStatus() {
 		return true
 	}
 	serviceStatistic.Range(delete2)
+	delete3 := func(key, _ interface{}) bool {
+		invokerBlackList.Delete(key)
+		return true
+	}
+	invokerBlackList.Range(delete3)
+}
+
+// GetInvokerHealthyStatus get invoker's conn healthy status
+func GetInvokerHealthyStatus(invoker Invoker) bool {
+	_, found := invokerBlackList.Load(invoker.GetUrl().Key())
+	return !found
+}
+
+// SetInvokerUnhealthyStatus add target invoker to black list
+func SetInvokerUnhealthyStatus(invoker Invoker) {
+	invokerBlackList.Store(invoker.GetUrl().Key(), invoker)
+	logger.Info("Add invoker ip = ", invoker.GetUrl().Location, " to black list")
+	blackListCacheDirty.Store(true)
+}
+
+// RemoveInvokerUnhealthyStatus remove unhealthy status of target invoker from blacklist
+func RemoveInvokerUnhealthyStatus(invoker Invoker) {
+	invokerBlackList.Delete(invoker.GetUrl().Key())
+	logger.Info("Remove invoker ip = ", invoker.GetUrl().Location, " from black list")
+	blackListCacheDirty.Store(true)
+}
+
+// GetBlackListInvokers get at most size of blockSize invokers from black list
+func GetBlackListInvokers(blockSize int) []Invoker {
+	resultIvks := make([]Invoker, 0, 16)
+	invokerBlackList.Range(func(k, v interface{}) bool {
+		resultIvks = append(resultIvks, v.(Invoker))
+		return true
+	})
+	if blockSize > len(resultIvks) {
+		return resultIvks
+	}
+	return resultIvks[:blockSize]
+}
+
+// RemoveUrlKeyUnhealthyStatus called when event of provider unregister, delete from black list
+func RemoveUrlKeyUnhealthyStatus(key string) {
+	invokerBlackList.Delete(key)
+	logger.Info("Remove invoker key = ", key, " from black list")
+	blackListCacheDirty.Store(true)
+}
+
+func GetAndRefreshState() bool {
+	state := blackListCacheDirty.Load()
+	blackListCacheDirty.Store(false)
+	return state
+}
+
+// TryRefreshBlackList start 3 gr to check at most block=16 invokers in black list
+// if target invoker is available, then remove it from black list
+func TryRefreshBlackList() {
+	if atomic.CompareAndSwapInt32(&blackListRefreshing, 0, 1) {
+		wg := sync.WaitGroup{}
+		defer func() {
+			atomic.CompareAndSwapInt32(&blackListRefreshing, 1, 0)
+		}()
+
+		ivks := GetBlackListInvokers(constant.DEFAULT_BLACK_LIST_RECOVER_BLOCK)
+		logger.Debug("blackList len = ", len(ivks))
+
+		for i := 0; i < 3; i++ {
+			wg.Add(1)
+			go func(ivks []Invoker, i int) {
+				defer wg.Done()
+				for j, _ := range ivks {
+					if j%3-i == 0 && ivks[j].(Invoker).IsAvailable() {
+						RemoveInvokerUnhealthyStatus(ivks[i])
+					}
+				}
+			}(ivks, i)
+		}
+		wg.Wait()
+	}
 }
diff --git a/registry/base_configuration_listener.go b/registry/base_configuration_listener.go
index 3b36510306680486ba9d269472450df8867b61b1..31e859eec279f08f4fd286bf021414bdb297a333 100644
--- a/registry/base_configuration_listener.go
+++ b/registry/base_configuration_listener.go
@@ -20,6 +20,7 @@ package registry
 import (
 	perrors "github.com/pkg/errors"
 )
+
 import (
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/common/config"
@@ -42,7 +43,9 @@ func (bcl *BaseConfigurationListener) Configurators() []config_center.Configurat
 }
 
 // InitWith will init BaseConfigurationListener by @key+@Listener+@f
-func (bcl *BaseConfigurationListener) InitWith(key string, listener config_center.ConfigurationListener, f func(url *common.URL) config_center.Configurator) {
+func (bcl *BaseConfigurationListener) InitWith(key string, listener config_center.ConfigurationListener,
+	f func(url *common.URL) config_center.Configurator) {
+
 	bcl.dynamicConfiguration = config.GetEnvInstance().GetDynamicConfiguration()
 	if bcl.dynamicConfiguration == nil {
 		//set configurators to empty
@@ -51,12 +54,15 @@ func (bcl *BaseConfigurationListener) InitWith(key string, listener config_cente
 	}
 	bcl.defaultConfiguratorFunc = f
 	bcl.dynamicConfiguration.AddListener(key, listener)
-	if rawConfig, err := bcl.dynamicConfiguration.GetInternalProperty(key, config_center.WithGroup(constant.DUBBO)); err != nil {
+	if rawConfig, err := bcl.dynamicConfiguration.GetInternalProperty(key,
+		config_center.WithGroup(constant.DUBBO)); err != nil {
 		//set configurators to empty
 		bcl.configurators = []config_center.Configurator{}
 		return
 	} else if len(rawConfig) > 0 {
-		bcl.genConfiguratorFromRawRule(rawConfig)
+		if err := bcl.genConfiguratorFromRawRule(rawConfig); err != nil {
+			logger.Error("bcl.genConfiguratorFromRawRule(rawConfig:%v) = error:%v", rawConfig, err)
+		}
 	}
 }
 
diff --git a/registry/base_registry.go b/registry/base_registry.go
index a6693be3a862eb208afc216840910c323b8e826f..df8c8a3250ebccb66e0ea797349d1a328dabb860 100644
--- a/registry/base_registry.go
+++ b/registry/base_registry.go
@@ -18,7 +18,6 @@
 package registry
 
 import (
-	"context"
 	"fmt"
 	"net/url"
 	"os"
@@ -93,7 +92,7 @@ type FacadeBasedRegistry interface {
 
 // BaseRegistry is a common logic abstract for registry. It implement Registry interface.
 type BaseRegistry struct {
-	context             context.Context
+	//context             context.Context
 	facadeBasedRegistry FacadeBasedRegistry
 	*common.URL
 	birth    int64          // time of file birth, seconds since Epoch; 0 if unknown
@@ -137,6 +136,13 @@ func (r *BaseRegistry) Register(conf *common.URL) error {
 		ok  bool
 		err error
 	)
+	// if developer define registry port and ip, use it first.
+	if ipToRegistry := os.Getenv("DUBBO_IP_TO_REGISTRY"); ipToRegistry != "" {
+		conf.Ip = ipToRegistry
+	}
+	if portToRegistry := os.Getenv("DUBBO_PORT_TO_REGISTRY"); portToRegistry != "" {
+		conf.Port = portToRegistry
+	}
 	role, _ := strconv.Atoi(r.URL.GetParam(constant.ROLE_KEY, ""))
 	// Check if the service has been registered
 	r.cltLock.Lock()
@@ -273,6 +279,10 @@ func (r *BaseRegistry) processURL(c *common.URL, f func(string, string) error, c
 	default:
 		return perrors.Errorf("@c{%v} type is not referencer or provider", c)
 	}
+	if err != nil {
+		return perrors.WithMessagef(err, "@c{%v} registry fail", c)
+	}
+
 	encodedURL = url.QueryEscape(rawURL)
 	dubboPath = strings.ReplaceAll(dubboPath, "$", "%24")
 	err = f(dubboPath, encodedURL)
diff --git a/registry/consul/registry.go b/registry/consul/registry.go
index 0b7ba9758952b072d579ae9424e2c385e59a4378..4d3718e58cd0f98b931ed525fe61f33713b6e71f 100644
--- a/registry/consul/registry.go
+++ b/registry/consul/registry.go
@@ -23,6 +23,7 @@ import (
 )
 
 import (
+	getty "github.com/apache/dubbo-getty"
 	consul "github.com/hashicorp/consul/api"
 	perrors "github.com/pkg/errors"
 )
@@ -56,6 +57,10 @@ type consulRegistry struct {
 	// Done field represents whether
 	// consul registry is closed.
 	done chan struct{}
+
+	// registeredURLs field represents all URLs that have been registered
+	// will be unregistered when destroyed
+	registeredURLs []*common.URL
 }
 
 func newConsulRegistry(url *common.URL) (registry.Registry, error) {
@@ -91,6 +96,7 @@ func (r *consulRegistry) Register(url *common.URL) error {
 
 // register actually register the @url
 func (r *consulRegistry) register(url *common.URL) error {
+	r.registeredURLs = append(r.registeredURLs, url.Clone())
 	service, err := buildService(url)
 	if err != nil {
 		return err
@@ -188,25 +194,26 @@ func (r *consulRegistry) IsAvailable() bool {
 
 // Destroy consul registry center
 func (r *consulRegistry) Destroy() {
-	if r.URL != nil {
-		done := make(chan struct{}, 1)
-		go func() {
-			defer func() {
-				if e := recover(); e != nil {
-					logger.Errorf("consulRegistry destory with panic: %v", e)
-				}
-				done <- struct{}{}
-			}()
-			if err := r.UnRegister(r.URL); err != nil {
-				logger.Errorf("consul registry unregister with err: %s", err.Error())
+	done := make(chan struct{}, 1)
+	go func() {
+		defer func() {
+			if e := recover(); e != nil {
+				logger.Errorf("consulRegistry destroy with panic: %v", e)
 			}
+			done <- struct{}{}
 		}()
-		select {
-		case <-done:
-			logger.Infof("consulRegistry unregister done")
-		case <-time.After(registryDestroyDefaultTimeout):
-			logger.Errorf("consul unregister timeout")
+		for _, url := range r.registeredURLs {
+			if err := r.UnRegister(url); err != nil {
+				logger.Errorf("consul registry unregister with err: %s", err.Error())
+			}
 		}
+	}()
+	select {
+	case <-done:
+		logger.Infof("consulRegistry unregister done")
+	case <-getty.GetTimeWheel().After(registryDestroyDefaultTimeout):
+		logger.Errorf("consul unregister timeout")
 	}
+
 	close(r.done)
 }
diff --git a/registry/consul/service_discovery.go b/registry/consul/service_discovery.go
index d8ab93f31ee6fdcf79aa869a35548e8192841fe4..fba142e04e4979b9c4fe123cc121111838ae2d4e 100644
--- a/registry/consul/service_discovery.go
+++ b/registry/consul/service_discovery.go
@@ -27,7 +27,7 @@ import (
 
 import (
 	"github.com/dubbogo/gost/container/set"
-	"github.com/dubbogo/gost/page"
+	"github.com/dubbogo/gost/hash/page"
 	consul "github.com/hashicorp/consul/api"
 	"github.com/hashicorp/consul/api/watch"
 	perrors "github.com/pkg/errors"
@@ -252,7 +252,7 @@ func (csd *consulServiceDiscovery) GetServices() *gxset.HashSet {
 		return res
 	}
 
-	for service, _ := range services {
+	for service := range services {
 		res.Add(service)
 	}
 	return res
@@ -339,7 +339,7 @@ func (csd *consulServiceDiscovery) GetInstancesByPage(serviceName string, offset
 	for i := offset; i < len(all) && i < offset+pageSize; i++ {
 		res = append(res, all[i])
 	}
-	return gxpage.New(offset, pageSize, res, len(all))
+	return gxpage.NewPage(offset, pageSize, res, len(all))
 }
 
 func (csd *consulServiceDiscovery) GetHealthyInstancesByPage(serviceName string, offset int, pageSize int, healthy bool) gxpage.Pager {
@@ -358,7 +358,7 @@ func (csd *consulServiceDiscovery) GetHealthyInstancesByPage(serviceName string,
 		}
 		i++
 	}
-	return gxpage.New(offset, pageSize, res, len(all))
+	return gxpage.NewPage(offset, pageSize, res, len(all))
 }
 
 func (csd *consulServiceDiscovery) GetRequestInstances(serviceNames []string, offset int, requestedSize int) map[string]gxpage.Pager {
@@ -444,7 +444,7 @@ func (csd *consulServiceDiscovery) buildRegisterInstance(instance registry.Servi
 	metadata = encodeConsulMetadata(metadata)
 	metadata[enable] = strconv.FormatBool(instance.IsEnable())
 	// check
-	check := csd.buildCheck(instance)
+	check := csd.buildCheck()
 
 	return &consul.AgentServiceRegistration{
 		ID:      buildID(instance),
@@ -456,12 +456,7 @@ func (csd *consulServiceDiscovery) buildRegisterInstance(instance registry.Servi
 	}, nil
 }
 
-func (csd *consulServiceDiscovery) buildCheck(instance registry.ServiceInstance) consul.AgentServiceCheck {
-
-	deregister, ok := instance.GetMetadata()[constant.DEREGISTER_AFTER]
-	if !ok || len(deregister) == 0 {
-		deregister = constant.DEFAULT_DEREGISTER_TIME
-	}
+func (csd *consulServiceDiscovery) buildCheck() consul.AgentServiceCheck {
 	return consul.AgentServiceCheck{
 		TTL:                            strconv.FormatInt(csd.checkPassInterval/1000, 10) + "s",
 		DeregisterCriticalServiceAfter: csd.deregisterCriticalServiceAfter,
diff --git a/registry/consul/service_discovery_test.go b/registry/consul/service_discovery_test.go
index 2169857ee8f79a92322234a0b17a4d7122a0d975..3f97d841d56111746f396ba753142324ac4555d2 100644
--- a/registry/consul/service_discovery_test.go
+++ b/registry/consul/service_discovery_test.go
@@ -84,7 +84,10 @@ func TestConsulServiceDiscovery_Destroy(t *testing.T) {
 func TestConsulServiceDiscovery_CRUD(t *testing.T) {
 	// start consul agent
 	consulAgent := consul.NewConsulAgent(t, registryPort)
-	defer consulAgent.Shutdown()
+	defer func() {
+		err := consulAgent.Shutdown()
+		assert.NoError(t, err)
+	}()
 
 	prepareData()
 	var eventDispatcher = MockEventDispatcher{Notify: make(chan struct{}, 1)}
@@ -138,7 +141,8 @@ func TestConsulServiceDiscovery_CRUD(t *testing.T) {
 	assert.Equal(t, 1, len(page.GetData()))
 
 	instanceResult = page.GetData()[0].(*registry.DefaultServiceInstance)
-	v, _ := instanceResult.Metadata["aaa"]
+	v, ok := instanceResult.Metadata["aaa"]
+	assert.True(t, ok)
 	assert.Equal(t, "bbb", v)
 
 	// test dispatcher event
diff --git a/registry/consul/utils.go b/registry/consul/utils.go
index 468dafb338e8413c66d00da974c860708a2e2210..76f5d2dd3378f67d300d10b4c5ecc72934ef7715 100644
--- a/registry/consul/utils.go
+++ b/registry/consul/utils.go
@@ -107,7 +107,7 @@ func retrieveURL(service *consul.ServiceEntry) (*common.URL, error) {
 
 func in(url *common.URL, urls []*common.URL) bool {
 	for _, url1 := range urls {
-		if url.URLEqual(url1) {
+		if common.IsEquals(url, url1) {
 			return true
 		}
 	}
diff --git a/registry/consul/utils_test.go b/registry/consul/utils_test.go
index d78c534e931f9aa3e0220bb08aa29222220ce619..b7e2929cec13c839a8ebaa9cb8a3000ab2cafef3 100644
--- a/registry/consul/utils_test.go
+++ b/registry/consul/utils_test.go
@@ -19,6 +19,8 @@ package consul
 
 import (
 	"fmt"
+	"github.com/apache/dubbo-go/common/logger"
+	"github.com/stretchr/testify/assert"
 	"net"
 	"net/url"
 	"strconv"
@@ -113,15 +115,24 @@ func (server *testServer) serve() {
 			if err != nil {
 				continue
 			}
-			conn.Write([]byte("Hello World"))
-			conn.Close()
+			_, err = conn.Write([]byte("Hello World"))
+			if err != nil {
+				logger.Warnf("conn.Write() = error: %v", err)
+			}
+			err = conn.Close()
+			if err != nil {
+				logger.Warnf("conn.Close() = error: %v", err)
+			}
 		}
 	}
 }
 
 func (server *testServer) close() {
 	close(server.done)
-	server.listener.Close()
+	if err := server.listener.Close(); err != nil {
+		fmt.Printf("server.listener.Close() = error:%v\n", err)
+	}
+
 	server.wg.Wait()
 }
 
@@ -148,7 +159,10 @@ func (suite *consulRegistryTestSuite) close() {
 // register -> subscribe -> unregister
 func test1(t *testing.T) {
 	consulAgent := consul.NewConsulAgent(t, registryPort)
-	defer consulAgent.Shutdown()
+	defer func() {
+		err := consulAgent.Shutdown()
+		assert.NoError(t, err)
+	}()
 
 	server := newServer(providerHost, providerPort)
 	defer server.close()
@@ -169,7 +183,10 @@ func test1(t *testing.T) {
 // subscribe -> register -> unregister
 func test2(t *testing.T) {
 	consulAgent := consul.NewConsulAgent(t, registryPort)
-	defer consulAgent.Shutdown()
+	defer func() {
+		err := consulAgent.Shutdown()
+		assert.NoError(t, err)
+	}()
 
 	server := newServer(providerHost, providerPort)
 	defer server.close()
diff --git a/registry/directory/directory.go b/registry/directory/directory.go
index e6ae0f3bb9004f8b933d420cdd2e7561f8232b48..a392b3a042e0b10668e90a54182fab349297c553 100644
--- a/registry/directory/directory.go
+++ b/registry/directory/directory.go
@@ -26,7 +26,6 @@ import (
 
 import (
 	perrors "github.com/pkg/errors"
-	"go.uber.org/atomic"
 )
 
 import (
@@ -64,8 +63,9 @@ type RegistryDirectory struct {
 	configurators                  []config_center.Configurator
 	consumerConfigurationListener  *consumerConfigurationListener
 	referenceConfigurationListener *referenceConfigurationListener
-	serviceKey                     string
-	forbidden                      atomic.Bool
+	//serviceKey                     string
+	//forbidden                      atomic.Bool
+	registerLock sync.Mutex // this lock if for register
 }
 
 // NewRegistryDirectory will create a new RegistryDirectory
@@ -73,6 +73,7 @@ func NewRegistryDirectory(url *common.URL, registry registry.Registry) (cluster.
 	if url.SubURL == nil {
 		return nil, perrors.Errorf("url is invalid, suburl can not be nil")
 	}
+	logger.Debugf("new RegistryDirectory for service :%s.", url.Key())
 	dir := &RegistryDirectory{
 		BaseDirectory:    directory.NewBaseDirectory(url),
 		cacheInvokers:    []protocol.Invoker{},
@@ -97,69 +98,129 @@ func NewRegistryDirectory(url *common.URL, registry registry.Registry) (cluster.
 
 // subscribe from registry
 func (dir *RegistryDirectory) subscribe(url *common.URL) {
+	logger.Debugf("subscribe service :%s for RegistryDirectory.", url.Key())
 	dir.consumerConfigurationListener.addNotifyListener(dir)
 	dir.referenceConfigurationListener = newReferenceConfigurationListener(dir, url)
-	dir.registry.Subscribe(url, dir)
+	if err := dir.registry.Subscribe(url, dir); err != nil {
+		logger.Error("registry.Subscribe(url:%v, dir:%v) = error:%v", url, dir, err)
+	}
 }
 
 // Notify monitor changes from registry,and update the cacheServices
-func (dir *RegistryDirectory) Notify(events ...*registry.ServiceEvent) {
-	go dir.refreshInvokers(events...)
+func (dir *RegistryDirectory) Notify(event *registry.ServiceEvent) {
+	if event == nil {
+		return
+	}
+	go dir.refreshInvokers(event)
+}
+
+// NotifyAll notify the events that are complete Service Event List.
+// After notify the address, the callback func will be invoked.
+func (dir *RegistryDirectory) NotifyAll(events []*registry.ServiceEvent, callback func()) {
+	go dir.refreshAllInvokers(events, callback)
+}
+
+// refreshInvokers refreshes service's events.
+func (dir *RegistryDirectory) refreshInvokers(event *registry.ServiceEvent) {
+	if event != nil {
+		logger.Debugf("refresh invokers with %+v", event)
+	} else {
+		logger.Debug("refresh invokers with nil")
+	}
+
+	var oldInvoker protocol.Invoker
+	if event != nil {
+		oldInvoker, _ = dir.cacheInvokerByEvent(event)
+	}
+	dir.setNewInvokers()
+	if oldInvoker != nil {
+		oldInvoker.Destroy()
+	}
 }
 
-// refreshInvokers refreshes service's events. It supports two modes: incremental mode and batch mode. If a single
-// service event is passed in, then it is incremental mode, and if an array of service events are passed in, it is
-// batch mode, in this mode, we assume the registry center have the complete list of the service events, therefore
-// in this case, we can safely assume any cached invoker not in the incoming list can be removed. It is necessary
-// since in batch mode, the register center handles the different type of events by itself, then notify the directory
-// a batch of 'Update' events, instead of omit the different type of event one by one.
-func (dir *RegistryDirectory) refreshInvokers(events ...*registry.ServiceEvent) {
-	var oldInvokers []protocol.Invoker
+// refreshAllInvokers the argument is the complete list of the service events,  we can safely assume any cached invoker
+// not in the incoming list can be removed.  The Action of serviceEvent should be EventTypeUpdate.
+func (dir *RegistryDirectory) refreshAllInvokers(events []*registry.ServiceEvent, callback func()) {
+	var (
+		oldInvokers []protocol.Invoker
+		addEvents   []*registry.ServiceEvent
+	)
+	dir.overrideUrl(dir.GetDirectoryUrl())
+	referenceUrl := dir.GetDirectoryUrl().SubURL
 
-	// in batch mode, it is safe to remove since we have the complete list of events.
-	if len(events) > 1 {
+	// loop the events to check the Action should be EventTypeUpdate.
+	for _, event := range events {
+		if event.Action != remoting.EventTypeUpdate {
+			panic("Your implements of register center is wrong, " +
+				"please check the Action of ServiceEvent should be EventTypeUpdate")
+		}
+		// Originally it will Merge URL many times, now we just execute once.
+		// MergeUrl is executed once and put the result into Event. After this, the key will get from Event.Key().
+		newUrl := dir.convertUrl(event)
+		newUrl = common.MergeUrl(newUrl, referenceUrl)
+		dir.overrideUrl(newUrl)
+		event.Update(newUrl)
+	}
+	// After notify all addresses, do some callback.
+	defer callback()
+	func() {
+		// this lock is work at batch update of InvokeCache
+		dir.registerLock.Lock()
+		defer dir.registerLock.Unlock()
+		// get need clear invokers from original invoker list
 		dir.cacheInvokersMap.Range(func(k, v interface{}) bool {
 			if !dir.eventMatched(k.(string), events) {
+				// delete unused invoker from cache
 				if invoker := dir.uncacheInvokerWithKey(k.(string)); invoker != nil {
 					oldInvokers = append(oldInvokers, invoker)
 				}
 			}
 			return true
 		})
-	}
-
-	for _, event := range events {
-		logger.Debugf("registry update, result{%s}", event)
-		if oldInvoker, _ := dir.cacheInvokerByEvent(event); oldInvoker != nil {
-			oldInvokers = append(oldInvokers, oldInvoker)
+		// get need add invokers from events
+		for _, event := range events {
+			// Get the key from Event.Key()
+			if _, ok := dir.cacheInvokersMap.Load(event.Key()); !ok {
+				addEvents = append(addEvents, event)
+			}
 		}
-	}
-
-	if len(events) > 0 {
-		dir.setNewInvokers()
-	}
-
-	// After dir.cacheInvokers is updated,destroy the oldInvoker
-	// Ensure that no request will enter the oldInvoker
+		// loop the updateEvents
+		for _, event := range addEvents {
+			logger.Debugf("registry update, result{%s}", event)
+			logger.Infof("selector add service url{%s}", event.Service)
+			// FIXME: routers are built in every address notification?
+			dir.configRouters()
+			if oldInvoker, _ := dir.doCacheInvoker(event.Service); oldInvoker != nil {
+				oldInvokers = append(oldInvokers, oldInvoker)
+			}
+		}
+	}()
+	dir.setNewInvokers()
+	// destroy unused invokers
 	for _, invoker := range oldInvokers {
-		invoker.Destroy()
+		go invoker.Destroy()
 	}
 }
 
 // eventMatched checks if a cached invoker appears in the incoming invoker list, if no, then it is safe to remove.
 func (dir *RegistryDirectory) eventMatched(key string, events []*registry.ServiceEvent) bool {
 	for _, event := range events {
-		if dir.invokerCacheKey(event.Service) == key {
+		if dir.invokerCacheKey(event) == key {
 			return true
 		}
 	}
 	return false
 }
 
-// invokerCacheKey generates the key in the cache for a given URL.
-func (dir *RegistryDirectory) invokerCacheKey(url *common.URL) string {
+// invokerCacheKey generates the key in the cache for a given ServiceEvent.
+func (dir *RegistryDirectory) invokerCacheKey(event *registry.ServiceEvent) string {
+	// If the url is merged, then return Event.Key() directly.
+	if event.Updated() {
+		return event.Key()
+	}
 	referenceUrl := dir.GetDirectoryUrl().SubURL
-	newUrl := common.MergeUrl(url, referenceUrl)
+	newUrl := common.MergeUrl(event.Service, referenceUrl)
+	event.Update(newUrl)
 	return newUrl.Key()
 }
 
@@ -234,11 +295,7 @@ func (dir *RegistryDirectory) toGroupInvokers() []protocol.Invoker {
 	for _, invoker := range newInvokersList {
 		group := invoker.GetUrl().GetParam(constant.GROUP_KEY, "")
 
-		if _, ok := groupInvokersMap[group]; ok {
-			groupInvokersMap[group] = append(groupInvokersMap[group], invoker)
-		} else {
-			groupInvokersMap[group] = []protocol.Invoker{invoker}
-		}
+		groupInvokersMap[group] = append(groupInvokersMap[group], invoker)
 	}
 	groupInvokersList := make([]protocol.Invoker, 0, len(groupInvokersMap))
 	if len(groupInvokersMap) == 1 {
@@ -269,6 +326,7 @@ func (dir *RegistryDirectory) uncacheInvoker(url *common.URL) protocol.Invoker {
 
 func (dir *RegistryDirectory) uncacheInvokerWithKey(key string) protocol.Invoker {
 	logger.Debugf("service will be deleted in cache invokers: invokers key is  %s!", key)
+	protocol.RemoveUrlKeyUnhealthyStatus(key)
 	if cacheInvoker, ok := dir.cacheInvokersMap.Load(key); ok {
 		dir.cacheInvokersMap.Delete(key)
 		return cacheInvoker.(protocol.Invoker)
@@ -294,30 +352,38 @@ func (dir *RegistryDirectory) cacheInvoker(url *common.URL) protocol.Invoker {
 	if url.Protocol == referenceUrl.Protocol || referenceUrl.Protocol == "" {
 		newUrl := common.MergeUrl(url, referenceUrl)
 		dir.overrideUrl(newUrl)
-		if cacheInvoker, ok := dir.cacheInvokersMap.Load(newUrl.Key()); !ok {
-			logger.Debugf("service will be added in cache invokers: invokers url is  %s!", newUrl)
-			newInvoker := extension.GetProtocol(protocolwrapper.FILTER).Refer(newUrl)
-			if newInvoker != nil {
-				dir.cacheInvokersMap.Store(newUrl.Key(), newInvoker)
-			}
-		} else {
-			// if cached invoker has the same URL with the new URL, then no need to re-refer, and no need to destroy
-			// the old invoker.
-			if common.IsEquals(newUrl, cacheInvoker.(protocol.Invoker).GetUrl()) {
-				return nil
-			}
-
-			logger.Debugf("service will be updated in cache invokers: new invoker url is %s, old invoker url is %s", newUrl, cacheInvoker.(protocol.Invoker).GetUrl())
-			newInvoker := extension.GetProtocol(protocolwrapper.FILTER).Refer(newUrl)
-			if newInvoker != nil {
-				dir.cacheInvokersMap.Store(newUrl.Key(), newInvoker)
-				return cacheInvoker.(protocol.Invoker)
-			}
+		if v, ok := dir.doCacheInvoker(newUrl); ok {
+			return v
 		}
 	}
 	return nil
 }
 
+func (dir *RegistryDirectory) doCacheInvoker(newUrl *common.URL) (protocol.Invoker, bool) {
+	key := newUrl.Key()
+	if cacheInvoker, ok := dir.cacheInvokersMap.Load(key); !ok {
+		logger.Debugf("service will be added in cache invokers: invokers url is  %s!", newUrl)
+		newInvoker := extension.GetProtocol(protocolwrapper.FILTER).Refer(newUrl)
+		if newInvoker != nil {
+			dir.cacheInvokersMap.Store(key, newInvoker)
+		}
+	} else {
+		// if cached invoker has the same URL with the new URL, then no need to re-refer, and no need to destroy
+		// the old invoker.
+		if common.GetCompareURLEqualFunc()(newUrl, cacheInvoker.(protocol.Invoker).GetUrl()) {
+			return nil, true
+		}
+
+		logger.Debugf("service will be updated in cache invokers: new invoker url is %s, old invoker url is %s", newUrl, cacheInvoker.(protocol.Invoker).GetUrl())
+		newInvoker := extension.GetProtocol(protocolwrapper.FILTER).Refer(newUrl)
+		if newInvoker != nil {
+			dir.cacheInvokersMap.Store(key, newInvoker)
+			return cacheInvoker.(protocol.Invoker), true
+		}
+	}
+	return nil, false
+}
+
 // List selected protocol invokers from the directory
 func (dir *RegistryDirectory) List(invocation protocol.Invocation) []protocol.Invoker {
 	invokers := dir.cacheInvokers
@@ -406,7 +472,7 @@ func newReferenceConfigurationListener(dir *RegistryDirectory, url *common.URL)
 func (l *referenceConfigurationListener) Process(event *config_center.ConfigChangeEvent) {
 	l.BaseConfigurationListener.Process(event)
 	// FIXME: this doesn't trigger dir.overrideUrl()
-	l.directory.refreshInvokers()
+	l.directory.refreshInvokers(nil)
 }
 
 type consumerConfigurationListener struct {
@@ -433,5 +499,5 @@ func (l *consumerConfigurationListener) addNotifyListener(listener registry.Noti
 func (l *consumerConfigurationListener) Process(event *config_center.ConfigChangeEvent) {
 	l.BaseConfigurationListener.Process(event)
 	// FIXME: this doesn't trigger dir.overrideUrl()
-	l.directory.refreshInvokers()
+	l.directory.refreshInvokers(nil)
 }
diff --git a/registry/directory/directory_test.go b/registry/directory/directory_test.go
index dde944d62410cee6429dbbc408eb364a354f1613..b5d81eb0da0b7ae635b8a54e3002a9380a69a2fd 100644
--- a/registry/directory/directory_test.go
+++ b/registry/directory/directory_test.go
@@ -124,7 +124,7 @@ func Test_Destroy(t *testing.T) {
 func Test_List(t *testing.T) {
 	registryDirectory, _ := normalRegistryDir()
 
-	time.Sleep(4e9)
+	time.Sleep(6e9)
 	assert.Len(t, registryDirectory.List(&invocation.RPCInvocation{}), 3)
 	assert.Equal(t, true, registryDirectory.IsAvailable())
 
@@ -192,6 +192,34 @@ func Test_toGroupInvokers(t *testing.T) {
 	assert.Len(t, groupInvokers, 2)
 }
 
+func Test_RefreshUrl(t *testing.T) {
+	registryDirectory, mockRegistry := normalRegistryDir()
+	providerUrl, _ := common.NewURL("dubbo://0.0.0.0:20011/org.apache.dubbo-go.mockService",
+		common.WithParamsValue(constant.CLUSTER_KEY, "mock1"),
+		common.WithParamsValue(constant.GROUP_KEY, "group"),
+		common.WithParamsValue(constant.VERSION_KEY, "1.0.0"))
+	providerUrl2, _ := common.NewURL("dubbo://0.0.0.0:20012/org.apache.dubbo-go.mockService",
+		common.WithParamsValue(constant.CLUSTER_KEY, "mock1"),
+		common.WithParamsValue(constant.GROUP_KEY, "group"),
+		common.WithParamsValue(constant.VERSION_KEY, "1.0.0"))
+	time.Sleep(1e9)
+	assert.Len(t, registryDirectory.cacheInvokers, 3)
+	mockRegistry.MockEvent(&registry.ServiceEvent{Action: remoting.EventTypeAdd, Service: providerUrl})
+	time.Sleep(1e9)
+	assert.Len(t, registryDirectory.cacheInvokers, 4)
+	mockRegistry.MockEvents([]*registry.ServiceEvent{&registry.ServiceEvent{Action: remoting.EventTypeUpdate, Service: providerUrl}})
+	time.Sleep(1e9)
+	assert.Len(t, registryDirectory.cacheInvokers, 1)
+	mockRegistry.MockEvents([]*registry.ServiceEvent{&registry.ServiceEvent{Action: remoting.EventTypeUpdate, Service: providerUrl},
+		&registry.ServiceEvent{Action: remoting.EventTypeUpdate, Service: providerUrl2}})
+	time.Sleep(1e9)
+	assert.Len(t, registryDirectory.cacheInvokers, 2)
+	// clear all address
+	mockRegistry.MockEvents([]*registry.ServiceEvent{})
+	time.Sleep(1e9)
+	assert.Len(t, registryDirectory.cacheInvokers, 0)
+}
+
 func normalRegistryDir(noMockEvent ...bool) (*RegistryDirectory, *registry.MockRegistry) {
 	extension.SetProtocol(protocolwrapper.FILTER, protocolwrapper.NewMockProtocolFilter)
 
diff --git a/registry/etcdv3/listener.go b/registry/etcdv3/listener.go
index 4bc387cafaa3c64539efb29a181a2198fbe8a30f..f900495f97d3acfd9a2ae232264910b791961bc8 100644
--- a/registry/etcdv3/listener.go
+++ b/registry/etcdv3/listener.go
@@ -19,6 +19,7 @@ package etcdv3
 
 import (
 	"strings"
+	"sync"
 )
 
 import (
@@ -79,8 +80,9 @@ func (l *dataListener) DataChange(eventType remoting.Event) bool {
 }
 
 type configurationListener struct {
-	registry *etcdV3Registry
-	events   chan *config_center.ConfigChangeEvent
+	registry  *etcdV3Registry
+	events    chan *config_center.ConfigChangeEvent
+	closeOnce sync.Once
 }
 
 // NewConfigurationListener for listening the event of etcdv3.
@@ -120,5 +122,7 @@ func (l *configurationListener) Next() (*registry.ServiceEvent, error) {
 
 // Close etcd registry center
 func (l *configurationListener) Close() {
-	l.registry.WaitGroup().Done()
+	l.closeOnce.Do(func() {
+		l.registry.WaitGroup().Done()
+	})
 }
diff --git a/registry/etcdv3/registry.go b/registry/etcdv3/registry.go
index f3cc379bd8e94b15b678f0ac1d5ed5b6c917da6a..7ccf32661c75ed4cd27fddd1fc020ded56066f37 100644
--- a/registry/etcdv3/registry.go
+++ b/registry/etcdv3/registry.go
@@ -51,7 +51,7 @@ type etcdV3Registry struct {
 	registry.BaseRegistry
 	cltLock        sync.Mutex
 	client         *etcdv3.Client
-	listenerLock   sync.Mutex
+	listenerLock   sync.RWMutex
 	listener       *etcdv3.EventListener
 	dataListener   *dataListener
 	configListener *configurationListener
@@ -150,14 +150,9 @@ func (r *etcdV3Registry) CreatePath(k string) error {
 
 // DoSubscribe actually subscribe the provider URL
 func (r *etcdV3Registry) DoSubscribe(svc *common.URL) (registry.Listener, error) {
-
-	var (
-		configListener *configurationListener
-	)
-
-	r.listenerLock.Lock()
-	configListener = r.configListener
-	r.listenerLock.Unlock()
+	r.listenerLock.RLock()
+	configListener := r.configListener
+	r.listenerLock.RUnlock()
 	if r.listener == nil {
 		r.cltLock.Lock()
 		client := r.client
@@ -165,12 +160,8 @@ func (r *etcdV3Registry) DoSubscribe(svc *common.URL) (registry.Listener, error)
 		if client == nil {
 			return nil, perrors.New("etcd client broken")
 		}
-
-		// new client & listener
-		listener := etcdv3.NewEventListener(r.client)
-
 		r.listenerLock.Lock()
-		r.listener = listener
+		r.listener = etcdv3.NewEventListener(r.client) // new client & listener
 		r.listenerLock.Unlock()
 	}
 
diff --git a/registry/etcdv3/service_discovery.go b/registry/etcdv3/service_discovery.go
index e8d4aea9a42634896c3c30e5c6b527a935179873..ca6016e49b4e174e5843b3c08beea7b559bbfb9b 100644
--- a/registry/etcdv3/service_discovery.go
+++ b/registry/etcdv3/service_discovery.go
@@ -26,7 +26,7 @@ import (
 
 import (
 	gxset "github.com/dubbogo/gost/container/set"
-	gxpage "github.com/dubbogo/gost/page"
+	gxpage "github.com/dubbogo/gost/hash/page"
 	"github.com/hashicorp/vault/sdk/helper/jsonutil"
 	perrors "github.com/pkg/errors"
 )
@@ -108,8 +108,11 @@ func (e *etcdV3ServiceDiscovery) Update(instance registry.ServiceInstance) error
 
 	if nil != e.client {
 		ins, err := jsonutil.EncodeJSON(instance)
-		if nil == err {
-			e.client.RegisterTemp(path, string(ins))
+		if err == nil {
+			if err = e.client.RegisterTemp(path, string(ins)); err != nil {
+				logger.Warnf("etcdV3ServiceDiscovery.client.RegisterTemp(path:%v, instance:%v) = error:%v",
+					path, string(ins), err)
+			}
 			e.services.Add(instance.GetServiceName())
 		}
 	}
@@ -162,7 +165,7 @@ func (e *etcdV3ServiceDiscovery) GetInstances(serviceName string) []registry.Ser
 		logger.Infof("could not getChildrenKVList the err is:%v", err)
 	}
 
-	return make([]registry.ServiceInstance, 0, 0)
+	return make([]registry.ServiceInstance, 0)
 }
 
 // GetInstancesByPage will return a page containing instances of ServiceInstance with the serviceName
@@ -177,7 +180,7 @@ func (e *etcdV3ServiceDiscovery) GetInstancesByPage(serviceName string, offset i
 		res = append(res, all[i])
 	}
 
-	return gxpage.New(offset, pageSize, res, len(all))
+	return gxpage.NewPage(offset, pageSize, res, len(all))
 }
 
 // GetHealthyInstancesByPage will return a page containing instances of ServiceInstance.
@@ -199,7 +202,7 @@ func (e *etcdV3ServiceDiscovery) GetHealthyInstancesByPage(serviceName string, o
 		}
 		i++
 	}
-	return gxpage.New(offset, pageSize, res, len(all))
+	return gxpage.NewPage(offset, pageSize, res, len(all))
 }
 
 // Batch get all instances by the specified service names
@@ -319,5 +322,5 @@ func newEtcdV3ServiceDiscovery(name string) (registry.ServiceDiscovery, error) {
 
 	descriptor := fmt.Sprintf("etcd-service-discovery[%s]", remoteConfig.Address)
 
-	return &etcdV3ServiceDiscovery{descriptor, client, nil, gxset.NewSet(), make(map[string]*etcdv3.EventListener, 0)}, nil
+	return &etcdV3ServiceDiscovery{descriptor, client, nil, gxset.NewSet(), make(map[string]*etcdv3.EventListener)}, nil
 }
diff --git a/registry/etcdv3/service_discovery_test.go b/registry/etcdv3/service_discovery_test.go
index d8e3f1a2864150cc1f1e8996bc7c53e115dbef45..5609cf7be6831d93b78945fa7bf8959c321f0d1e 100644
--- a/registry/etcdv3/service_discovery_test.go
+++ b/registry/etcdv3/service_discovery_test.go
@@ -75,6 +75,6 @@ func Test_newEtcdV3ServiceDiscovery(t *testing.T) {
 
 func TestEtcdV3ServiceDiscovery_GetDefaultPageSize(t *testing.T) {
 	setUp()
-	serviceDiscovry := &etcdV3ServiceDiscovery{}
-	assert.Equal(t, registry.DefaultPageSize, serviceDiscovry.GetDefaultPageSize())
+	serviceDiscovery := &etcdV3ServiceDiscovery{}
+	assert.Equal(t, registry.DefaultPageSize, serviceDiscovery.GetDefaultPageSize())
 }
diff --git a/registry/event.go b/registry/event.go
index c93415841b1d144a462e7cf71713882e0bcdd8c6..2ebc375597aef67b7605073b852ce53f68cb58e4 100644
--- a/registry/event.go
+++ b/registry/event.go
@@ -41,11 +41,36 @@ func init() {
 type ServiceEvent struct {
 	Action  remoting.EventType
 	Service *common.URL
+	// store the key for Service.Key()
+	key string
+	// If the url is updated, such as Merged.
+	updated bool
 }
 
 // String return the description of event
-func (e ServiceEvent) String() string {
-	return fmt.Sprintf("ServiceEvent{Action{%s}, Path{%s}}", e.Action, e.Service)
+func (e *ServiceEvent) String() string {
+	return fmt.Sprintf("ServiceEvent{Action{%s}, Path{%s}, Key{%s}}", e.Action, e.Service, e.key)
+}
+
+// Update() update the url with the merged URL. Work with Updated() can reduce the process of some merging URL.
+func (e *ServiceEvent) Update(url *common.URL) {
+	e.Service = url
+	e.updated = true
+}
+
+// Updated() check if the url is updated.
+// If the serviceEvent is updated, then it don't need merge url again.
+func (e *ServiceEvent) Updated() bool {
+	return e.updated
+}
+
+// Key() generate the key for service.Key(). It is cached once.
+func (e *ServiceEvent) Key() string {
+	if len(e.key) > 0 {
+		return e.key
+	}
+	e.key = e.Service.Key()
+	return e.key
 }
 
 // ServiceInstancesChangedEvent represents service instances make some changing
diff --git a/registry/event/event_publishing_service_deiscovery_test.go b/registry/event/event_publishing_service_deiscovery_test.go
index 54752c03c0de598226270b27c8d7d0f3621d07d1..504f7b5faed374795bd534c9e97cf5b42fc94d4c 100644
--- a/registry/event/event_publishing_service_deiscovery_test.go
+++ b/registry/event/event_publishing_service_deiscovery_test.go
@@ -24,7 +24,7 @@ import (
 
 import (
 	gxset "github.com/dubbogo/gost/container/set"
-	gxpage "github.com/dubbogo/gost/page"
+	gxpage "github.com/dubbogo/gost/hash/page"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/suite"
 )
diff --git a/registry/event/event_publishing_service_discovery.go b/registry/event/event_publishing_service_discovery.go
index 3ee2f4a44946065cdf7489abc391df41f251d810..773eee6e83c6b3e24c293053b55b028d0e7b2e9a 100644
--- a/registry/event/event_publishing_service_discovery.go
+++ b/registry/event/event_publishing_service_discovery.go
@@ -19,7 +19,7 @@ package event
 
 import (
 	gxset "github.com/dubbogo/gost/container/set"
-	gxpage "github.com/dubbogo/gost/page"
+	gxpage "github.com/dubbogo/gost/hash/page"
 )
 
 import (
diff --git a/registry/file/service_discovery.go b/registry/file/service_discovery.go
index 254c12688f47282343e0004dac86844ba51a3eb2..768a1c2a3d8a208d637e374632da530a43465a4e 100644
--- a/registry/file/service_discovery.go
+++ b/registry/file/service_discovery.go
@@ -28,7 +28,7 @@ import (
 
 import (
 	gxset "github.com/dubbogo/gost/container/set"
-	gxpage "github.com/dubbogo/gost/page"
+	gxpage "github.com/dubbogo/gost/hash/page"
 	perrors "github.com/pkg/errors"
 )
 
@@ -69,7 +69,7 @@ func newFileSystemServiceDiscovery(name string) (registry.ServiceDiscovery, erro
 	fdcf := extension.GetConfigCenterFactory(constant.FILE_KEY)
 	p := path.Join(rp, ".dubbo", constant.REGISTRY_KEY)
 	url, _ := common.NewURL("")
-	url.AddParamAvoidNil(file.CONFIG_CENTER_DIR_PARAM_NAME, p)
+	url.AddParamAvoidNil(file.ConfigCenterDirParamName, p)
 	c, err := fdcf.GetDynamicConfiguration(url)
 	if err != nil {
 		return nil, perrors.WithStack(err)
@@ -82,7 +82,9 @@ func newFileSystemServiceDiscovery(name string) (registry.ServiceDiscovery, erro
 	}
 
 	extension.AddCustomShutdownCallback(func() {
-		sd.Destroy()
+		if err := sd.Destroy(); err != nil {
+			logger.Warnf("sd.Destroy() = error:%v", err)
+		}
 	})
 
 	for _, v := range sd.GetServices().Values() {
@@ -210,7 +212,7 @@ func (fssd *fileSystemServiceDiscovery) GetInstances(serviceName string) []regis
 	if err != nil {
 		logger.Errorf("[FileServiceDiscovery] Could not query the instances for service{%s}, error = err{%v} ",
 			serviceName, err)
-		return make([]registry.ServiceInstance, 0, 0)
+		return make([]registry.ServiceInstance, 0)
 	}
 
 	res := make([]registry.ServiceInstance, 0, set.Size())
@@ -221,7 +223,7 @@ func (fssd *fileSystemServiceDiscovery) GetInstances(serviceName string) []regis
 			logger.Errorf("[FileServiceDiscovery] Could not get the properties for id{%s}, service{%s}, "+
 				"error = err{%v} ",
 				id, serviceName, err)
-			return make([]registry.ServiceInstance, 0, 0)
+			return make([]registry.ServiceInstance, 0)
 		}
 
 		dsi := &registry.DefaultServiceInstance{}
@@ -230,7 +232,7 @@ func (fssd *fileSystemServiceDiscovery) GetInstances(serviceName string) []regis
 			logger.Errorf("[FileServiceDiscovery] Could not unmarshal the properties for id{%s}, service{%s}, "+
 				"error = err{%v} ",
 				id, serviceName, err)
-			return make([]registry.ServiceInstance, 0, 0)
+			return make([]registry.ServiceInstance, 0)
 		}
 
 		res = append(res, dsi)
diff --git a/registry/file/service_discovery_test.go b/registry/file/service_discovery_test.go
index 0bffcae31d039a49d8cf696a6de2f6858c42ada2..0062eae32cc04fd58ae4398ac7a28aabc54892c1 100644
--- a/registry/file/service_discovery_test.go
+++ b/registry/file/service_discovery_test.go
@@ -44,7 +44,10 @@ func TestNewFileSystemServiceDiscoveryAndDestroy(t *testing.T) {
 	serviceDiscovery, err := newFileSystemServiceDiscovery(testName)
 	assert.NoError(t, err)
 	assert.NotNil(t, serviceDiscovery)
-	defer serviceDiscovery.Destroy()
+	defer func() {
+		err = serviceDiscovery.Destroy()
+		assert.Nil(t, err)
+	}()
 }
 
 func TestCURDFileSystemServiceDiscovery(t *testing.T) {
@@ -78,8 +81,11 @@ func TestCURDFileSystemServiceDiscovery(t *testing.T) {
 	assert.NoError(t, err)
 
 	err = serviceDiscovery.Register(r1)
-
-	defer serviceDiscovery.Destroy()
+	assert.NoError(t, err)
+	defer func() {
+		err = serviceDiscovery.Destroy()
+		assert.NoError(t, err)
+	}()
 }
 
 func prepareData() {
diff --git a/registry/kubernetes/listener_test.go b/registry/kubernetes/listener_test.go
index f1d8ff41761a841aa2bec888336756854ff16874..ef6e8fb1fceed9aa84a0f9099b8c782ceb624910 100644
--- a/registry/kubernetes/listener_test.go
+++ b/registry/kubernetes/listener_test.go
@@ -31,138 +31,6 @@ import (
 	"github.com/apache/dubbo-go/remoting"
 )
 
-var clientPodJsonData = `{
-    "apiVersion": "v1",
-    "kind": "Pod",
-    "metadata": {
-        "annotations": {
-            "dubbo.io/annotation": "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"
-        },
-        "creationTimestamp": "2020-03-13T03:38:57Z",
-        "labels": {
-            "dubbo.io/label": "dubbo.io-value"
-        },
-        "name": "client",
-        "namespace": "default",
-        "resourceVersion": "2449700",
-        "selfLink": "/api/v1/namespaces/default/pods/client",
-        "uid": "3ec394f5-dcc6-49c3-8061-57b4b2b41344"
-    },
-    "spec": {
-        "containers": [
-            {
-                "env": [
-                    {
-                        "name": "NAMESPACE",
-                        "valueFrom": {
-                            "fieldRef": {
-                                "apiVersion": "v1",
-                                "fieldPath": "metadata.namespace"
-                            }
-                        }
-                    }
-                ],
-                "image": "registry.cn-hangzhou.aliyuncs.com/scottwang/dubbogo-client",
-                "imagePullPolicy": "Always",
-                "name": "client",
-                "resources": {},
-                "terminationMessagePath": "/dev/termination-log",
-                "terminationMessagePolicy": "File",
-                "volumeMounts": [
-                    {
-                        "mountPath": "/var/run/secrets/kubernetes.io/serviceaccount",
-                        "name": "dubbo-sa-token-l2lzh",
-                        "readOnly": true
-                    }
-                ]
-            }
-        ],
-        "dnsPolicy": "ClusterFirst",
-        "enableServiceLinks": true,
-        "nodeName": "minikube",
-        "priority": 0,
-        "restartPolicy": "Never",
-        "schedulerName": "default-scheduler",
-        "securityContext": {},
-        "serviceAccount": "dubbo-sa",
-        "serviceAccountName": "dubbo-sa",
-        "terminationGracePeriodSeconds": 30,
-        "tolerations": [
-            {
-                "effect": "NoExecute",
-                "key": "node.kubernetes.io/not-ready",
-                "operator": "Exists",
-                "tolerationSeconds": 300
-            },
-            {
-                "effect": "NoExecute",
-                "key": "node.kubernetes.io/unreachable",
-                "operator": "Exists",
-                "tolerationSeconds": 300
-            }
-        ],
-        "volumes": [
-            {
-                "name": "dubbo-sa-token-l2lzh",
-                "secret": {
-                    "defaultMode": 420,
-                    "secretName": "dubbo-sa-token-l2lzh"
-                }
-            }
-        ]
-    },
-    "status": {
-        "conditions": [
-            {
-                "lastProbeTime": null,
-                "lastTransitionTime": "2020-03-13T03:38:57Z",
-                "status": "True",
-                "type": "Initialized"
-            },
-            {
-                "lastProbeTime": null,
-                "lastTransitionTime": "2020-03-13T03:40:18Z",
-                "status": "True",
-                "type": "Ready"
-            },
-            {
-                "lastProbeTime": null,
-                "lastTransitionTime": "2020-03-13T03:40:18Z",
-                "status": "True",
-                "type": "ContainersReady"
-            },
-            {
-                "lastProbeTime": null,
-                "lastTransitionTime": "2020-03-13T03:38:57Z",
-                "status": "True",
-                "type": "PodScheduled"
-            }
-        ],
-        "containerStatuses": [
-            {
-                "containerID": "docker://2870d6abc19ca7fe22ca635ebcfac5d48c6d5550a659bafd74fb48104f6dfe3c",
-                "image": "registry.cn-hangzhou.aliyuncs.com/scottwang/dubbogo-client:latest",
-                "imageID": "docker-pullable://registry.cn-hangzhou.aliyuncs.com/scottwang/dubbogo-client@sha256:1f075131f708a0d400339e81549d7c4d4ed917ab0b6bd38ef458dd06ad25a559",
-                "lastState": {},
-                "name": "client",
-                "ready": true,
-                "restartCount": 0,
-                "state": {
-                    "running": {
-                        "startedAt": "2020-03-13T03:40:17Z"
-                    }
-                }
-            }
-        ],
-        "hostIP": "10.0.2.15",
-        "phase": "Running",
-        "podIP": "172.17.0.8",
-        "qosClass": "BestEffort",
-        "startTime": "2020-03-13T03:38:57Z"
-    }
-}
-`
-
 func Test_DataChange(t *testing.T) {
 	listener := NewRegistryDataListener(&MockDataListener{})
 	url, _ := common.NewURL("jsonrpc%3A%2F%2F127.0.0.1%3A20001%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26app.version%3D0.0.1%26application%3DBDTService%26category%3Dproviders%26cluster%3Dfailover%26dubbo%3Ddubbo-provider-golang-2.6.0%26environment%3Ddev%26group%3D%26interface%3Dcom.ikurento.user.UserProvider%26ip%3D10.32.20.124%26loadbalance%3Drandom%26methods.GetUser.loadbalance%3Drandom%26methods.GetUser.retries%3D1%26methods.GetUser.weight%3D0%26module%3Ddubbogo%2Buser-info%2Bserver%26name%3DBDTService%26organization%3Dikurento.com%26owner%3DZX%26pid%3D74500%26retries%3D0%26service.filter%3Decho%26side%3Dprovider%26timestamp%3D1560155407%26version%3D%26warmup%3D100")
diff --git a/registry/kubernetes/registry.go b/registry/kubernetes/registry.go
index c1e559e48dcc64972c9405e15405d7e6febcc845..c4a0352cfaa3273c92296be6279c0aae71f0448b 100644
--- a/registry/kubernetes/registry.go
+++ b/registry/kubernetes/registry.go
@@ -19,7 +19,6 @@ package kubernetes
 
 import (
 	"fmt"
-	"os"
 	"path"
 	"sync"
 	"time"
@@ -40,11 +39,6 @@ import (
 	"github.com/apache/dubbo-go/remoting/kubernetes"
 )
 
-var (
-	processID = ""
-	localIP   = ""
-)
-
 const (
 	Name         = "kubernetes"
 	ConnDelay    = 3
@@ -52,8 +46,8 @@ const (
 )
 
 func init() {
-	processID = fmt.Sprintf("%d", os.Getpid())
-	localIP = common.GetLocalIp()
+	//processID = fmt.Sprintf("%d", os.Getpid())
+	//localIP = common.GetLocalIp()
 	extension.SetRegistry(Name, newKubernetesRegistry)
 }
 
diff --git a/registry/kubernetes/registry_test.go b/registry/kubernetes/registry_test.go
index 9fb409a222be914cad5b64e7ff3aab9bc97a6f33..a816b035c593b444665d3f259b17af1d4e5d53eb 100644
--- a/registry/kubernetes/registry_test.go
+++ b/registry/kubernetes/registry_test.go
@@ -280,7 +280,7 @@ func TestSubscribe(t *testing.T) {
 		defer wg.Done()
 		registerErr := r.Register(url)
 		if registerErr != nil {
-			t.Fatal(registerErr)
+			t.Error(registerErr)
 		}
 	}()
 
diff --git a/registry/mock_registry.go b/registry/mock_registry.go
index 18c87ee3ace79d98c0d0faa6e915dd64d2fe5362..6287bb0d168f18f166618b7c6505b2f8b012be04 100644
--- a/registry/mock_registry.go
+++ b/registry/mock_registry.go
@@ -18,6 +18,7 @@
 package registry
 
 import (
+	"fmt"
 	"time"
 )
 
@@ -32,14 +33,16 @@ import (
 
 // MockRegistry is used as mock registry
 type MockRegistry struct {
-	listener  *listener
-	destroyed *atomic.Bool
+	listener   *listener
+	destroyed  *atomic.Bool
+	allAddress chan []*ServiceEvent
 }
 
 // NewMockRegistry creates a mock registry
 func NewMockRegistry(url *common.URL) (Registry, error) {
 	registry := &MockRegistry{
-		destroyed: atomic.NewBool(false),
+		destroyed:  atomic.NewBool(false),
+		allAddress: make(chan []*ServiceEvent),
 	}
 	listener := &listener{count: 0, registry: registry, listenChan: make(chan *ServiceEvent)}
 	registry.listener = listener
@@ -80,22 +83,12 @@ func (r *MockRegistry) subscribe(*common.URL) (Listener, error) {
 func (r *MockRegistry) Subscribe(url *common.URL, notifyListener NotifyListener) error {
 	go func() {
 		for {
-			if !r.IsAvailable() {
-				logger.Warnf("event listener game over.")
-				time.Sleep(time.Duration(3) * time.Second)
-				return
-			}
-
-			listener, err := r.subscribe(url)
-			if err != nil {
-				if !r.IsAvailable() {
-					logger.Warnf("event listener game over.")
-					return
-				}
-				time.Sleep(time.Duration(3) * time.Second)
+			t, listener := r.checkLoopSubscribe(url)
+			if t == 0 {
 				continue
+			} else if t == -1 {
+				return
 			}
-
 			for {
 				serviceEvent, err := listener.Next()
 				if err != nil {
@@ -109,6 +102,26 @@ func (r *MockRegistry) Subscribe(url *common.URL, notifyListener NotifyListener)
 			}
 		}
 	}()
+	go func() {
+		for {
+			t, _ := r.checkLoopSubscribe(url)
+			if t == 0 {
+				continue
+			} else if t == -1 {
+				return
+			}
+
+			for {
+				select {
+				case e := <-r.allAddress:
+					notifyListener.NotifyAll(e, func() {
+						fmt.Print("notify all ok")
+					})
+					break
+				}
+			}
+		}
+	}()
 	return nil
 }
 
@@ -124,10 +137,7 @@ type listener struct {
 }
 
 func (l *listener) Next() (*ServiceEvent, error) {
-	select {
-	case e := <-l.listenChan:
-		return e, nil
-	}
+	return <-l.listenChan, nil
 }
 
 func (*listener) Close() {
@@ -138,3 +148,27 @@ func (*listener) Close() {
 func (r *MockRegistry) MockEvent(event *ServiceEvent) {
 	r.listener.listenChan <- event
 }
+
+// nolint
+func (r *MockRegistry) MockEvents(events []*ServiceEvent) {
+	r.allAddress <- events
+}
+
+func (r *MockRegistry) checkLoopSubscribe(url *common.URL) (int, Listener) {
+	if !r.IsAvailable() {
+		logger.Warnf("event listener game over.")
+		time.Sleep(time.Duration(3) * time.Second)
+		return -1, nil
+	}
+
+	listener, err := r.subscribe(url)
+	if err != nil {
+		if !r.IsAvailable() {
+			logger.Warnf("event listener game over.")
+			return -1, nil
+		}
+		time.Sleep(time.Duration(3) * time.Second)
+		return 0, nil
+	}
+	return 1, listener
+}
diff --git a/registry/nacos/listener.go b/registry/nacos/listener.go
index 7f27326d6d7b1000688cb03cd6406ea53745a119..d2b574648fa2fea5664fdf35b457aa99f14e323f 100644
--- a/registry/nacos/listener.go
+++ b/registry/nacos/listener.go
@@ -115,14 +115,14 @@ func (nl *nacosListener) Callback(services []model.SubscribeService, err error)
 		logger.Errorf("nacos subscribe callback error:%s , subscribe:%+v ", err.Error(), nl.subscribeParam)
 		return
 	}
-	nl.cacheLock.Lock()
-	defer nl.cacheLock.Unlock()
+
 	addInstances := make([]model.Instance, 0, len(services))
 	delInstances := make([]model.Instance, 0, len(services))
 	updateInstances := make([]model.Instance, 0, len(services))
-
 	newInstanceMap := make(map[string]model.Instance, len(services))
 
+	nl.cacheLock.Lock()
+	defer nl.cacheLock.Unlock()
 	for i := range services {
 		if !services[i].Enable || !services[i].Valid {
 			// instance is not available,so ignore it
@@ -188,7 +188,9 @@ func (nl *nacosListener) startListen() error {
 	}
 	serviceName := getSubscribeName(nl.listenUrl)
 	nl.subscribeParam = &vo.SubscribeParam{ServiceName: serviceName, SubscribeCallback: nl.Callback}
-	go nl.namingClient.Subscribe(nl.subscribeParam)
+	go func() {
+		_ = nl.namingClient.Subscribe(nl.subscribeParam)
+	}()
 	return nil
 }
 
diff --git a/registry/nacos/registry.go b/registry/nacos/registry.go
index ae2345e6d5c90fcfc5c4dfb5b4da07bcf1b6f43e..e9a4bd317ef5482ff98b4f1a9d3920d5b86aad42 100644
--- a/registry/nacos/registry.go
+++ b/registry/nacos/registry.go
@@ -172,6 +172,11 @@ func (nr *nacosRegistry) subscribe(conf *common.URL) (registry.Listener, error)
 
 // subscribe from registry
 func (nr *nacosRegistry) Subscribe(url *common.URL, notifyListener registry.NotifyListener) error {
+	role, _ := strconv.Atoi(nr.URL.GetParam(constant.ROLE_KEY, ""))
+	if role != common.CONSUMER {
+		return nil
+	}
+
 	for {
 		if !nr.IsAvailable() {
 			logger.Warnf("event listener game over.")
@@ -274,7 +279,7 @@ func getNacosConfig(url *common.URL) (map[string]interface{}, error) {
 			Port:   uint64(port),
 		})
 	}
-	configMap["serverConfigs"] = serverConfigs
+	configMap[nacosConstant.KEY_SERVER_CONFIGS] = serverConfigs
 
 	var clientConfig nacosConstant.ClientConfig
 	timeout, err := time.ParseDuration(url.GetParam(constant.REGISTRY_TIMEOUT_KEY, constant.DEFAULT_REG_TIMEOUT))
@@ -287,8 +292,16 @@ func getNacosConfig(url *common.URL) (map[string]interface{}, error) {
 	clientConfig.LogDir = url.GetParam(constant.NACOS_LOG_DIR_KEY, "")
 	clientConfig.Endpoint = url.GetParam(constant.NACOS_ENDPOINT, "")
 	clientConfig.NamespaceId = url.GetParam(constant.NACOS_NAMESPACE_ID, "")
-	clientConfig.NotLoadCacheAtStart = true
-	configMap["clientConfig"] = clientConfig
+
+	//enable local cache when nacos can not connect.
+	notLoadCache, err := strconv.ParseBool(url.GetParam(constant.NACOS_NOT_LOAD_LOCAL_CACHE, "false"))
+	if err != nil {
+		logger.Errorf("ParseBool - error: %v", err)
+		notLoadCache = false
+	}
+	clientConfig.NotLoadCacheAtStart = notLoadCache
+
+	configMap[nacosConstant.KEY_CLIENT_CONFIG] = clientConfig
 
 	return configMap, nil
 }
diff --git a/registry/nacos/registry_test.go b/registry/nacos/registry_test.go
index 43a6da79d13c0964162f60f45ed64a854d0e3a2c..b82820577144dfe98492165372a925500c20abfb 100644
--- a/registry/nacos/registry_test.go
+++ b/registry/nacos/registry_test.go
@@ -19,9 +19,11 @@ package nacos
 
 import (
 	"encoding/json"
+	"net/http"
 	"net/url"
 	"strconv"
 	"testing"
+	"time"
 )
 
 import (
@@ -35,7 +37,14 @@ import (
 )
 
 func TestNacosRegistry_Register(t *testing.T) {
-	regurl, _ := common.NewURL("registry://console.nacos.io:80", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
+	if !checkNacosServerAlive() {
+		return
+	}
+	regurlMap := url.Values{}
+	regurlMap.Set(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER))
+	regurlMap.Set(constant.NACOS_NOT_LOAD_LOCAL_CACHE, "true")
+	regurl, _ := common.NewURL("registry://console.nacos.io:80", common.WithParams(regurlMap))
+
 	urlMap := url.Values{}
 	urlMap.Set(constant.GROUP_KEY, "guangzhou-idc")
 	urlMap.Set(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER))
@@ -64,7 +73,14 @@ func TestNacosRegistry_Register(t *testing.T) {
 }
 
 func TestNacosRegistry_Subscribe(t *testing.T) {
-	regurl, _ := common.NewURL("registry://console.nacos.io:80", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
+	if !checkNacosServerAlive() {
+		return
+	}
+	regurlMap := url.Values{}
+	regurlMap.Set(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER))
+	regurlMap.Set(constant.NACOS_NOT_LOAD_LOCAL_CACHE, "true")
+	regurl, _ := common.NewURL("registry://console.nacos.io:80", common.WithParams(regurlMap))
+
 	urlMap := url.Values{}
 	urlMap.Set(constant.GROUP_KEY, "guangzhou-idc")
 	urlMap.Set(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER))
@@ -102,7 +118,14 @@ func TestNacosRegistry_Subscribe(t *testing.T) {
 }
 
 func TestNacosRegistry_Subscribe_del(t *testing.T) {
-	regurl, _ := common.NewURL("registry://console.nacos.io:80", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
+	if !checkNacosServerAlive() {
+		return
+	}
+	regurlMap := url.Values{}
+	regurlMap.Set(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER))
+	regurlMap.Set(constant.NACOS_NOT_LOAD_LOCAL_CACHE, "true")
+	regurl, _ := common.NewURL("registry://console.nacos.io:80", common.WithParams(regurlMap))
+
 	urlMap := url.Values{}
 	urlMap.Set(constant.GROUP_KEY, "guangzhou-idc")
 	urlMap.Set(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER))
@@ -156,7 +179,9 @@ func TestNacosRegistry_Subscribe_del(t *testing.T) {
 
 	nacosReg := reg.(*nacosRegistry)
 	//deregister instance to mock instance offline
-	nacosReg.namingClient.DeregisterInstance(vo.DeregisterInstanceParam{Ip: "127.0.0.2", Port: 20000, ServiceName: "providers:com.ikurento.user.UserProvider:2.0.0:guangzhou-idc"})
+	_, err = nacosReg.namingClient.DeregisterInstance(vo.DeregisterInstanceParam{Ip: "127.0.0.2", Port: 20000,
+		ServiceName: "providers:com.ikurento.user.UserProvider:2.0.0:guangzhou-idc"})
+	assert.NoError(t, err)
 
 	serviceEvent3, _ := listener.Next()
 	assert.NoError(t, err)
@@ -168,7 +193,11 @@ func TestNacosRegistry_Subscribe_del(t *testing.T) {
 }
 
 func TestNacosListener_Close(t *testing.T) {
-	regurl, _ := common.NewURL("registry://console.nacos.io:80", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
+	regurlMap := url.Values{}
+	regurlMap.Set(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER))
+	regurlMap.Set(constant.NACOS_NOT_LOAD_LOCAL_CACHE, "true")
+	regurl, _ := common.NewURL("registry://console.nacos.io:80", common.WithParams(regurlMap))
+
 	urlMap := url.Values{}
 	urlMap.Set(constant.GROUP_KEY, "guangzhou-idc")
 	urlMap.Set(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER))
@@ -188,3 +217,11 @@ func TestNacosListener_Close(t *testing.T) {
 	_, err = listener.Next()
 	assert.NotNil(t, err)
 }
+
+func checkNacosServerAlive() bool {
+	c := http.Client{Timeout: time.Second}
+	if _, err := c.Get("http://console.nacos.io/nacos/"); err != nil {
+		return false
+	}
+	return true
+}
diff --git a/registry/nacos/service_discovery.go b/registry/nacos/service_discovery.go
index 0e5ad8e6990856aeb0dfdde72f9c3f7fdae3e985..4533e7bc6b1427f1713e8b61bf2f125c0d0bde99 100644
--- a/registry/nacos/service_discovery.go
+++ b/registry/nacos/service_discovery.go
@@ -24,7 +24,7 @@ import (
 
 import (
 	"github.com/dubbogo/gost/container/set"
-	"github.com/dubbogo/gost/page"
+	"github.com/dubbogo/gost/hash/page"
 	"github.com/nacos-group/nacos-sdk-go/clients/naming_client"
 	"github.com/nacos-group/nacos-sdk-go/model"
 	"github.com/nacos-group/nacos-sdk-go/vo"
@@ -141,8 +141,9 @@ func (n *nacosServiceDiscovery) GetInstances(serviceName string) []registry.Serv
 		GroupName:   n.group,
 	})
 	if err != nil {
-		logger.Errorf("Could not query the instances for service: " + serviceName + ", group: " + n.group)
-		return make([]registry.ServiceInstance, 0, 0)
+		logger.Errorf("Could not query the instances for service: %+v, group: %+v . It happened err %+v",
+			serviceName, n.group, err)
+		return make([]registry.ServiceInstance, 0)
 	}
 	res := make([]registry.ServiceInstance, 0, len(instances))
 	for _, ins := range instances {
@@ -174,7 +175,7 @@ func (n *nacosServiceDiscovery) GetInstancesByPage(serviceName string, offset in
 	for i := offset; i < len(all) && i < offset+pageSize; i++ {
 		res = append(res, all[i])
 	}
-	return gxpage.New(offset, pageSize, res, len(all))
+	return gxpage.NewPage(offset, pageSize, res, len(all))
 }
 
 // GetHealthyInstancesByPage will return the instance
@@ -197,7 +198,7 @@ func (n *nacosServiceDiscovery) GetHealthyInstancesByPage(serviceName string, of
 		}
 		i++
 	}
-	return gxpage.New(offset, pageSize, res, len(all))
+	return gxpage.NewPage(offset, pageSize, res, len(all))
 }
 
 // GetRequestInstances will return the instances
diff --git a/registry/nacos/service_discovery_test.go b/registry/nacos/service_discovery_test.go
index 119be0b3aad3a828470c8c72c775abaada9512c2..aa044ad04a4f5d982914535a2f7fec55beed304c 100644
--- a/registry/nacos/service_discovery_test.go
+++ b/registry/nacos/service_discovery_test.go
@@ -81,6 +81,9 @@ func TestNacosServiceDiscovery_Destroy(t *testing.T) {
 }
 
 func TestNacosServiceDiscovery_CRUD(t *testing.T) {
+	if !checkNacosServerAlive() {
+		return
+	}
 	prepareData()
 	extension.SetEventDispatcher("mock", func() observer.EventDispatcher {
 		return &dispatcher.MockEventDispatcher{}
@@ -148,7 +151,8 @@ func TestNacosServiceDiscovery_CRUD(t *testing.T) {
 	assert.Equal(t, 1, len(page.GetData()))
 
 	instance = page.GetData()[0].(*registry.DefaultServiceInstance)
-	v, _ := instance.Metadata["a"]
+	v, ok := instance.Metadata["a"]
+	assert.True(t, ok)
 	assert.Equal(t, "b", v)
 
 	// test dispatcher event
@@ -162,8 +166,8 @@ func TestNacosServiceDiscovery_CRUD(t *testing.T) {
 
 func TestNacosServiceDiscovery_GetDefaultPageSize(t *testing.T) {
 	prepareData()
-	serviceDiscovry, _ := extension.GetServiceDiscovery(constant.NACOS_KEY, testName)
-	assert.Equal(t, registry.DefaultPageSize, serviceDiscovry.GetDefaultPageSize())
+	serviceDiscovery, _ := extension.GetServiceDiscovery(constant.NACOS_KEY, testName)
+	assert.Equal(t, registry.DefaultPageSize, serviceDiscovery.GetDefaultPageSize())
 }
 
 func prepareData() {
diff --git a/registry/protocol/protocol.go b/registry/protocol/protocol.go
index e3af9ba97270c0c5981d1998c3db415f53a69ee7..4fcdf93c0fa36812b69daacbbc829ddac5d2e101 100644
--- a/registry/protocol/protocol.go
+++ b/registry/protocol/protocol.go
@@ -212,7 +212,11 @@ func (proto *registryProtocol) Export(invoker protocol.Invoker) protocol.Exporte
 		logger.Infof("The exporter has not been cached, and will return a new exporter!")
 	}
 
-	go reg.Subscribe(overriderUrl, overrideSubscribeListener)
+	go func() {
+		if err = reg.Subscribe(overriderUrl, overrideSubscribeListener); err != nil {
+			logger.Warnf("reg.subscribe(overriderUrl:%v) = error:%v", overriderUrl, err)
+		}
+	}()
 	return cachedExporter.(protocol.Exporter)
 }
 
@@ -240,18 +244,23 @@ func newOverrideSubscribeListener(overriderUrl *common.URL, invoker protocol.Inv
 }
 
 // Notify will be triggered when a service change notification is received.
-func (nl *overrideSubscribeListener) Notify(events ...*registry.ServiceEvent) {
-	if len(events) == 0 {
-		return
-	}
-
-	event := events[0]
+func (nl *overrideSubscribeListener) Notify(event *registry.ServiceEvent) {
 	if isMatched(event.Service, nl.url) && event.Action == remoting.EventTypeAdd {
 		nl.configurator = extension.GetDefaultConfigurator(event.Service)
 		nl.doOverrideIfNecessary()
 	}
 }
 
+func (nl *overrideSubscribeListener) NotifyAll(events []*registry.ServiceEvent, callback func()) {
+	defer callback()
+	if len(events) == 0 {
+		return
+	}
+	for _, e := range events {
+		nl.Notify(e)
+	}
+}
+
 func (nl *overrideSubscribeListener) doOverrideIfNecessary() {
 	providerUrl := getProviderUrl(nl.originInvoker)
 	key := getCacheKey(providerUrl)
diff --git a/registry/registry.go b/registry/registry.go
index 73940fa12acd195bd24c05b4ef22af70b92fc659..439178390a2fcedba3bd1c9919d9a797f44e3a21 100644
--- a/registry/registry.go
+++ b/registry/registry.go
@@ -72,7 +72,12 @@ type NotifyListener interface {
 	// events are passed in, it's considered as a complete list, on the other side, if one single event is
 	// passed in, then it's a incremental event. Pls. note when a list (instead of single event) comes,
 	// the impl of NotifyListener may abandon the accumulated result from previous notifications.
-	Notify(...*ServiceEvent)
+	Notify(*ServiceEvent)
+	// NotifyAll the events are complete Service Event List.
+	// The argument of events []*ServiceEvent is equal to urls []*URL, The Action of serviceEvent should be EventTypeUpdate.
+	// If your registry center can only get all urls but can't get individual event, you should use this one.
+	// After notify the address, the callback func will be invoked.
+	NotifyAll([]*ServiceEvent, func())
 }
 
 // Listener Deprecated!
diff --git a/registry/service_discovery.go b/registry/service_discovery.go
index cb7a3c0182ff88995ab9dd6c920523225c3cb36c..5ab768351508ed289cbe9b17a75ea9b8e95fff72 100644
--- a/registry/service_discovery.go
+++ b/registry/service_discovery.go
@@ -23,7 +23,7 @@ import (
 
 import (
 	gxset "github.com/dubbogo/gost/container/set"
-	gxpage "github.com/dubbogo/gost/page"
+	gxpage "github.com/dubbogo/gost/hash/page"
 )
 
 const DefaultPageSize = 100
diff --git a/registry/service_instance.go b/registry/service_instance.go
index dbb458284d48aa350f2d5d3408b187b437ac81cd..43a1640eead7be1774556f25c9b8f97a75588801 100644
--- a/registry/service_instance.go
+++ b/registry/service_instance.go
@@ -91,7 +91,7 @@ func (d *DefaultServiceInstance) IsHealthy() bool {
 // GetMetadata will return the metadata, it will never return nil
 func (d *DefaultServiceInstance) GetMetadata() map[string]string {
 	if d.Metadata == nil {
-		d.Metadata = make(map[string]string, 0)
+		d.Metadata = make(map[string]string)
 	}
 	return d.Metadata
 }
diff --git a/registry/servicediscovery/service_discovery_registry.go b/registry/servicediscovery/service_discovery_registry.go
index ad6ec981ded9e224cecc0fa37c8e7f8c0254a932..c97a7f7b51d2344f1a3fc0c59582e089f1e63b62 100644
--- a/registry/servicediscovery/service_discovery_registry.go
+++ b/registry/servicediscovery/service_discovery_registry.go
@@ -174,10 +174,6 @@ func (s *serviceDiscoveryRegistry) Register(url *common.URL) error {
 		logger.Warnf("The URL[%s] has been registry!", url.String())
 	}
 
-	err = s.metaDataService.PublishServiceDefinition(url)
-	if err != nil {
-		return perrors.WithMessage(err, "publish the service definition failed. ")
-	}
 	return s.serviceNameMapping.Map(url.GetParam(constant.INTERFACE_KEY, ""),
 		url.GetParam(constant.GROUP_KEY, ""),
 		url.GetParam(constant.Version, ""),
@@ -462,7 +458,7 @@ func (s *serviceDiscoveryRegistry) initRevisionExportedURLsByInst(serviceInstanc
 	}
 	revisionExportedURLs := revisionExportedURLsMap[revision]
 	firstGet := false
-	if revisionExportedURLs == nil || len(revisionExportedURLs) == 0 {
+	if len(revisionExportedURLs) == 0 {
 		if len(revisionExportedURLsMap) > 0 {
 			// The case is that current ServiceInstance with the different revision
 			logger.Warnf("The ServiceInstance[id: %s, host : %s , port : %s] has different revision : %s"+
diff --git a/registry/servicediscovery/service_discovery_registry_test.go b/registry/servicediscovery/service_discovery_registry_test.go
index ad6b73d3b4da77e5fe21a3085cdc21d3eca0246d..391d92c8ad19c871756ca7426531bb01a7d54876 100644
--- a/registry/servicediscovery/service_discovery_registry_test.go
+++ b/registry/servicediscovery/service_discovery_registry_test.go
@@ -23,7 +23,7 @@ import (
 
 import (
 	"github.com/dubbogo/gost/container/set"
-	"github.com/dubbogo/gost/page"
+	"github.com/dubbogo/gost/hash/page"
 	"github.com/stretchr/testify/assert"
 )
 import (
@@ -79,18 +79,17 @@ func TestServiceDiscoveryRegistry_Register(t *testing.T) {
 	registry, err := newServiceDiscoveryRegistry(registryURL)
 	assert.Nil(t, err)
 	assert.NotNil(t, registry)
-	registry.Register(url)
+	err = registry.Register(url)
+	assert.NoError(t, err)
 }
 
 type mockEventDispatcher struct {
 }
 
 func (m *mockEventDispatcher) AddEventListener(observer.EventListener) {
-
 }
 
 func (m *mockEventDispatcher) AddEventListeners([]observer.EventListener) {
-
 }
 
 func (m *mockEventDispatcher) RemoveEventListener(observer.EventListener) {
diff --git a/registry/servicediscovery/synthesizer/rest/rest_subscribed_urls_synthesizer.go b/registry/servicediscovery/synthesizer/rest/rest_subscribed_urls_synthesizer.go
index d1ab6113b31a779529cc7e33ffd0f14233dd9ad6..c6b3aeaad09ebfa01d832a92478b7638a6cff432 100644
--- a/registry/servicediscovery/synthesizer/rest/rest_subscribed_urls_synthesizer.go
+++ b/registry/servicediscovery/synthesizer/rest/rest_subscribed_urls_synthesizer.go
@@ -38,14 +38,11 @@ type RestSubscribedURLsSynthesizer struct {
 }
 
 func (r RestSubscribedURLsSynthesizer) Support(subscribedURL *common.URL) bool {
-	if "rest" == subscribedURL.Protocol {
-		return true
-	}
-	return false
+	return "rest" == subscribedURL.Protocol
 }
 
 func (r RestSubscribedURLsSynthesizer) Synthesize(subscribedURL *common.URL, serviceInstances []registry.ServiceInstance) []*common.URL {
-	urls := make([]*common.URL, len(serviceInstances), len(serviceInstances))
+	urls := make([]*common.URL, len(serviceInstances))
 	for i, s := range serviceInstances {
 		splitHost := strings.Split(s.GetHost(), ":")
 		u := common.NewURLWithOptions(common.WithProtocol(subscribedURL.Protocol), common.WithIp(splitHost[0]),
diff --git a/registry/zookeeper/registry.go b/registry/zookeeper/registry.go
index 76fc052b6f471c776b9740e480be5023f494633e..55b0df7d56e7ea12431ea262458e117388ebafe6 100644
--- a/registry/zookeeper/registry.go
+++ b/registry/zookeeper/registry.go
@@ -129,7 +129,7 @@ func (r *zkRegistry) InitListeners() {
 		defer oldDataListener.mutex.Unlock()
 		r.dataListener.closed = true
 		recovered := r.dataListener.subscribed
-		if recovered != nil && len(recovered) > 0 {
+		if len(recovered) > 0 {
 			// recover all subscribed url
 			for _, oldListener := range recovered {
 				var (
@@ -212,7 +212,7 @@ func (r *zkRegistry) registerTempZookeeperNode(root string, node string) error {
 
 	r.cltLock.Lock()
 	defer r.cltLock.Unlock()
-	if r.client == nil{
+	if r.client == nil {
 		return perrors.WithStack(perrors.New("zk client already been closed"))
 	}
 	err = r.client.Create(root)
@@ -223,23 +223,22 @@ func (r *zkRegistry) registerTempZookeeperNode(root string, node string) error {
 
 	// try to register the node
 	zkPath, err = r.client.RegisterTemp(root, node)
-	if err != nil {
-		logger.Errorf("Register temp node(root{%s}, node{%s}) = error{%v}", root, node, perrors.WithStack(err))
-		if perrors.Cause(err) == zk.ErrNodeExists {
-			// should delete the old node
-			logger.Info("Register temp node failed, try to delete the old and recreate  (root{%s}, node{%s}) , ignore!", root, node)
-			if err = r.client.Delete(zkPath); err == nil {
-				_, err = r.client.RegisterTemp(root, node)
-			}
-			if err != nil {
-				logger.Errorf("Recreate the temp node failed, (root{%s}, node{%s}) = error{%v}", root, node, perrors.WithStack(err))
-			}
+	if err == nil {
+		return nil
+	}
+
+	if perrors.Cause(err) == zk.ErrNodeExists {
+		if err = r.client.Delete(zkPath); err == nil {
+			_, err = r.client.RegisterTemp(root, node)
+		}
+
+		if err == nil {
+			return nil
 		}
-		return perrors.WithMessagef(err, "RegisterTempNode(root{%s}, node{%s})", root, node)
 	}
-	logger.Debugf("Create a zookeeper node:%s", zkPath)
 
-	return nil
+	logger.Errorf("Register temp node(root{%s}, node{%s}) = error{%v}", root, node, perrors.WithStack(err))
+	return perrors.WithMessagef(err, "RegisterTempNode(root{%s}, node{%s})", root, node)
 }
 
 func (r *zkRegistry) getListener(conf *common.URL) (*RegistryConfigurationListener, error) {
@@ -251,8 +250,7 @@ func (r *zkRegistry) getListener(conf *common.URL) (*RegistryConfigurationListen
 	dataListener.mutex.Lock()
 	defer dataListener.mutex.Unlock()
 	if r.dataListener.subscribed[conf.ServiceKey()] != nil {
-
-		zkListener, _ := r.dataListener.subscribed[conf.ServiceKey()].(*RegistryConfigurationListener)
+		zkListener, _ = r.dataListener.subscribed[conf.ServiceKey()].(*RegistryConfigurationListener)
 		if zkListener != nil {
 			r.listenerLock.Lock()
 			defer r.listenerLock.Unlock()
@@ -284,7 +282,11 @@ func (r *zkRegistry) getListener(conf *common.URL) (*RegistryConfigurationListen
 	//Interested register to dataconfig.
 	r.dataListener.SubscribeURL(conf, zkListener)
 
-	go r.listener.ListenServiceEvent(conf, fmt.Sprintf("/dubbo/%s/"+constant.DEFAULT_CATEGORY, url.QueryEscape(conf.Service())), r.dataListener)
+	go r.listener.ListenServiceEvent(
+		conf,
+		fmt.Sprintf("/dubbo/%s/"+constant.DEFAULT_CATEGORY, url.QueryEscape(conf.Service())),
+		r.dataListener,
+	)
 
 	return zkListener, nil
 }
@@ -295,9 +297,9 @@ func (r *zkRegistry) getCloseListener(conf *common.URL) (*RegistryConfigurationL
 	r.dataListener.mutex.Lock()
 	configurationListener := r.dataListener.subscribed[conf.ServiceKey()]
 	if configurationListener != nil {
-		zkListener, _ := configurationListener.(*RegistryConfigurationListener)
-		if zkListener != nil {
-			if zkListener.isClosed {
+		rcListener, _ := configurationListener.(*RegistryConfigurationListener)
+		if rcListener != nil {
+			if rcListener.isClosed {
 				r.dataListener.mutex.Unlock()
 				return nil, perrors.New("configListener already been closed")
 			}
diff --git a/registry/zookeeper/registry_test.go b/registry/zookeeper/registry_test.go
index e630db7e41092e48592bf99690f11863a23e23d3..5959a903bc883141f158c5462b0a775c711f8f51 100644
--- a/registry/zookeeper/registry_test.go
+++ b/registry/zookeeper/registry_test.go
@@ -34,11 +34,13 @@ import (
 )
 
 func Test_Register(t *testing.T) {
-	regurl, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
+	regURL, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
 	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithParamsValue("serviceid", "soa.mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
 
-	ts, reg, _ := newMockZkRegistry(regurl)
-	defer ts.Stop()
+	ts, reg, _ := newMockZkRegistry(regURL)
+	defer func() {
+		_ = ts.Stop()
+	}()
 	err := reg.Register(url)
 	children, _ := reg.client.GetChildren("/dubbo/com.ikurento.user.UserProvider/providers")
 	assert.Regexp(t, ".*dubbo%3A%2F%2F127.0.0.1%3A20000%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26cluster%3Dmock%26.*.serviceid%3Dsoa.mock", children)
@@ -47,17 +49,21 @@ func Test_Register(t *testing.T) {
 
 func Test_UnRegister(t *testing.T) {
 	// register
-	regurl, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
+	regURL, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
 	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithParamsValue("serviceid", "soa.mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
 
-	ts, reg, _ := newMockZkRegistry(regurl)
-	defer ts.Stop()
+	ts, reg, _ := newMockZkRegistry(regURL)
+	defer func() {
+		_ = ts.Stop()
+	}()
 	err := reg.Register(url)
+	assert.NoError(t, err)
 	children, _ := reg.client.GetChildren("/dubbo/com.ikurento.user.UserProvider/providers")
 	assert.Regexp(t, ".*dubbo%3A%2F%2F127.0.0.1%3A20000%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26cluster%3Dmock%26.*.serviceid%3Dsoa.mock", children)
 	assert.NoError(t, err)
 
 	err = reg.UnRegister(url)
+	assert.NoError(t, err)
 	children, err = reg.client.GetChildren("/dubbo/com.ikurento.user.UserProvider/providers")
 	assert.Equal(t, 0, len(children))
 	assert.Error(t, err)
@@ -67,13 +73,12 @@ func Test_UnRegister(t *testing.T) {
 	children, _ = reg.client.GetChildren("/dubbo/com.ikurento.user.UserProvider/providers")
 	assert.Regexp(t, ".*dubbo%3A%2F%2F127.0.0.1%3A20000%2Fcom.ikurento.user.UserProvider%3Fanyhost%3Dtrue%26cluster%3Dmock%26.*.serviceid%3Dsoa.mock", children)
 	assert.NoError(t, err)
-
 }
 
 func Test_Subscribe(t *testing.T) {
-	regurl, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
+	regURL, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
 	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
-	ts, reg, _ := newMockZkRegistry(regurl)
+	ts, reg, _ := newMockZkRegistry(regURL)
 
 	//provider register
 	err := reg.Register(url)
@@ -84,10 +89,11 @@ func Test_Subscribe(t *testing.T) {
 	}
 
 	//consumer register
-	regurl.SetParam(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER))
-	_, reg2, _ := newMockZkRegistry(regurl, zookeeper.WithTestCluster(ts))
+	regURL.SetParam(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER))
+	_, reg2, _ := newMockZkRegistry(regURL, zookeeper.WithTestCluster(ts))
 
-	reg2.Register(url)
+	err = reg2.Register(url)
+	assert.Nil(t, err)
 	listener, _ := reg2.DoSubscribe(url)
 
 	serviceEvent, _ := listener.Next()
@@ -96,13 +102,15 @@ func Test_Subscribe(t *testing.T) {
 		return
 	}
 	assert.Regexp(t, ".*ServiceEvent{Action{add}.*", serviceEvent.String())
-	defer ts.Stop()
+	defer func() {
+		_ = ts.Stop()
+	}()
 }
 
 func Test_UnSubscribe(t *testing.T) {
-	regurl, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
+	regURL, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
 	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
-	ts, reg, _ := newMockZkRegistry(regurl)
+	ts, reg, _ := newMockZkRegistry(regURL)
 
 	//provider register
 	err := reg.Register(url)
@@ -113,10 +121,11 @@ func Test_UnSubscribe(t *testing.T) {
 	}
 
 	//consumer register
-	regurl.SetParam(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER))
-	_, reg2, _ := newMockZkRegistry(regurl, zookeeper.WithTestCluster(ts))
+	regURL.SetParam(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER))
+	_, reg2, _ := newMockZkRegistry(regURL, zookeeper.WithTestCluster(ts))
 
-	reg2.Register(url)
+	err = reg2.Register(url)
+	assert.Nil(t, err)
 	listener, _ := reg2.DoSubscribe(url)
 
 	serviceEvent, _ := listener.Next()
@@ -126,18 +135,22 @@ func Test_UnSubscribe(t *testing.T) {
 	}
 	assert.Regexp(t, ".*ServiceEvent{Action{add}.*", serviceEvent.String())
 
-	reg2.UnSubscribe(url, nil)
+	err = reg2.UnSubscribe(url, nil)
+	assert.Nil(t, err)
 	assert.Nil(t, reg2.listener)
-
-	defer ts.Stop()
+	defer func() {
+		_ = ts.Stop()
+	}()
 }
 
-func Test_ConsumerDestory(t *testing.T) {
-	regurl, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER)))
+func Test_ConsumerDestroy(t *testing.T) {
+	regURL, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER)))
 	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
 
-	ts, reg, err := newMockZkRegistry(regurl)
-	defer ts.Stop()
+	ts, reg, err := newMockZkRegistry(regURL)
+	defer func() {
+		_ = ts.Stop()
+	}()
 
 	assert.NoError(t, err)
 	err = reg.Register(url)
@@ -149,18 +162,20 @@ func Test_ConsumerDestory(t *testing.T) {
 	time.Sleep(1e9)
 	reg.Destroy()
 	assert.Equal(t, false, reg.IsAvailable())
-
 }
 
-func Test_ProviderDestory(t *testing.T) {
-	regurl, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
+func Test_ProviderDestroy(t *testing.T) {
+	regURL, _ := common.NewURL("registry://127.0.0.1:1111", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
 	url, _ := common.NewURL("dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
 
-	ts, reg, err := newMockZkRegistry(regurl)
-	defer ts.Stop()
+	ts, reg, err := newMockZkRegistry(regURL)
+	defer func() {
+		_ = ts.Stop()
+	}()
 
 	assert.NoError(t, err)
-	reg.Register(url)
+	err = reg.Register(url)
+	assert.Nil(t, err)
 
 	//listener.Close()
 	time.Sleep(1e9)
diff --git a/registry/zookeeper/service_discovery.go b/registry/zookeeper/service_discovery.go
index 6d9582f33a7b2517c4edc96d00d00ad6b57a4835..095a78dc3c1650197ba1ded75218e8fd0020b6ea 100644
--- a/registry/zookeeper/service_discovery.go
+++ b/registry/zookeeper/service_discovery.go
@@ -27,7 +27,7 @@ import (
 
 import (
 	"github.com/dubbogo/gost/container/set"
-	"github.com/dubbogo/gost/page"
+	"github.com/dubbogo/gost/hash/page"
 	perrors "github.com/pkg/errors"
 )
 
@@ -60,9 +60,9 @@ func init() {
 }
 
 type zookeeperServiceDiscovery struct {
-	client      *zookeeper.ZookeeperClient
-	csd         *curator_discovery.ServiceDiscovery
-	listener    *zookeeper.ZkEventListener
+	client *zookeeper.ZookeeperClient
+	csd    *curator_discovery.ServiceDiscovery
+	//listener    *zookeeper.ZkEventListener
 	url         *common.URL
 	wg          sync.WaitGroup
 	cltLock     sync.Mutex
@@ -214,7 +214,7 @@ func (zksd *zookeeperServiceDiscovery) GetInstances(serviceName string) []regist
 	if err != nil {
 		logger.Errorf("[zkServiceDiscovery] Could not query the instances for service{%s}, error = err{%v} ",
 			serviceName, err)
-		return make([]registry.ServiceInstance, 0, 0)
+		return make([]registry.ServiceInstance, 0)
 	}
 	iss := make([]registry.ServiceInstance, 0, len(criss))
 	for _, cris := range criss {
@@ -231,7 +231,7 @@ func (zksd *zookeeperServiceDiscovery) GetInstancesByPage(serviceName string, of
 	for i := offset; i < len(all) && i < offset+pageSize; i++ {
 		res = append(res, all[i])
 	}
-	return gxpage.New(offset, pageSize, res, len(all))
+	return gxpage.NewPage(offset, pageSize, res, len(all))
 }
 
 // GetHealthyInstancesByPage will return the instance
@@ -254,7 +254,7 @@ func (zksd *zookeeperServiceDiscovery) GetHealthyInstancesByPage(serviceName str
 		}
 		i++
 	}
-	return gxpage.New(offset, pageSize, res, len(all))
+	return gxpage.NewPage(offset, pageSize, res, len(all))
 }
 
 // GetRequestInstances will return the instances
diff --git a/registry/zookeeper/service_discovery_test.go b/registry/zookeeper/service_discovery_test.go
index ea3c7ddd48adc0adc4162d8306d28283575f694a..c9e14afd50af36e5e729f0efb768b37c56f0adf3 100644
--- a/registry/zookeeper/service_discovery_test.go
+++ b/registry/zookeeper/service_discovery_test.go
@@ -75,10 +75,14 @@ func TestNewZookeeperServiceDiscovery(t *testing.T) {
 
 func TestCURDZookeeperServiceDiscovery(t *testing.T) {
 	ts := prepareData(t)
-	defer ts.Stop()
+	defer func() {
+		_ = ts.Stop()
+	}()
 	sd, err := newZookeeperServiceDiscovery(testName)
 	assert.Nil(t, err)
-	defer sd.Destroy()
+	defer func() {
+		_ = sd.Destroy()
+	}()
 	md := make(map[string]string)
 	md["t1"] = "test1"
 	err = sd.Register(&registry.DefaultServiceInstance{
@@ -140,10 +144,14 @@ func TestCURDZookeeperServiceDiscovery(t *testing.T) {
 
 func TestAddListenerZookeeperServiceDiscovery(t *testing.T) {
 	ts := prepareData(t)
-	defer ts.Stop()
+	defer func() {
+		_ = ts.Stop()
+	}()
 	sd, err := newZookeeperServiceDiscovery(testName)
 	assert.Nil(t, err)
-	defer sd.Destroy()
+	defer func() {
+		_ = sd.Destroy()
+	}()
 
 	err = sd.Register(&registry.DefaultServiceInstance{
 		Id:          "testId",
@@ -154,8 +162,6 @@ func TestAddListenerZookeeperServiceDiscovery(t *testing.T) {
 		Healthy:     true,
 		Metadata:    nil,
 	})
-	assert.Nil(t, err)
-
 	assert.Nil(t, err)
 	wg := &sync.WaitGroup{}
 	wg.Add(1)
@@ -170,7 +176,7 @@ func TestAddListenerZookeeperServiceDiscovery(t *testing.T) {
 	extension.SetAndInitGlobalDispatcher("direct")
 	extension.GetGlobalDispatcher().AddEventListener(sicl)
 	err = sd.AddListener(sicl)
-	assert.Nil(t, err)
+	assert.NoError(t, err)
 
 	err = sd.Update(&registry.DefaultServiceInstance{
 		Id:          "testId",
@@ -181,6 +187,7 @@ func TestAddListenerZookeeperServiceDiscovery(t *testing.T) {
 		Healthy:     true,
 		Metadata:    nil,
 	})
+	assert.NoError(t, err)
 	tn.wg.Wait()
 }
 
diff --git a/remoting/consul/test_agent.go b/remoting/consul/test_agent.go
index f6ba336a95667fdf1d9b305e1844408c2501190a..2c5c13f4ac578658383798ea8982a7d85b1d6dd7 100644
--- a/remoting/consul/test_agent.go
+++ b/remoting/consul/test_agent.go
@@ -30,7 +30,7 @@ import (
 // an embedded consul server.
 func NewConsulAgent(t *testing.T, port int) *agent.TestAgent {
 	hcl := `
-		ports { 
+		ports {
 			http = ` + strconv.Itoa(port) + `
 		}
 	`
diff --git a/remoting/etcdv3/client.go b/remoting/etcdv3/client.go
index ebd454242d49ee82c81fe1a1fae1a19980c238a4..34ee31bd94afcc48776bfc81d73bbd5c87a2b7f8 100644
--- a/remoting/etcdv3/client.go
+++ b/remoting/etcdv3/client.go
@@ -416,7 +416,9 @@ func (c *Client) keepAliveKV(k string, v string) error {
 
 	keepAlive, err := c.rawClient.KeepAlive(c.ctx, lease.ID)
 	if err != nil || keepAlive == nil {
-		c.rawClient.Revoke(c.ctx, lease.ID)
+		if _, revokeErr := c.rawClient.Revoke(c.ctx, lease.ID); revokeErr != nil {
+			logger.Warnf("rawClient.Revoke() = error:%v", revokeErr)
+		}
 		if err != nil {
 			return perrors.WithMessage(err, "keep alive lease")
 		} else {
diff --git a/remoting/etcdv3/client_test.go b/remoting/etcdv3/client_test.go
index 3de266f42ffbc69a1e2ba4662a9a9fff1d831cd4..787c24d45fba17584dbdd4cb6485cf31ad0e5d2c 100644
--- a/remoting/etcdv3/client_test.go
+++ b/remoting/etcdv3/client_test.go
@@ -108,7 +108,6 @@ func (suite *ClientTestSuite) SetupSuite() {
 	}
 
 	suite.etcd = e
-	return
 }
 
 // stop etcd server
@@ -133,9 +132,9 @@ func (suite *ClientTestSuite) setUpClient() *Client {
 // set up a client for suite
 func (suite *ClientTestSuite) SetupTest() {
 	c := suite.setUpClient()
-	c.CleanKV()
+	err := c.CleanKV()
+	suite.Nil(err)
 	suite.client = c
-	return
 }
 
 func (suite *ClientTestSuite) TestClientClose() {
@@ -298,7 +297,7 @@ func (suite *ClientTestSuite) TestClientWatch() {
 
 		wc, err := c.watch(prefix)
 		if err != nil {
-			t.Fatal(err)
+			t.Error(err)
 		}
 
 		events := make([]mvccpb.Event, 0)
@@ -358,7 +357,7 @@ func (suite *ClientTestSuite) TestClientRegisterTemp() {
 		completePath := path.Join("scott", "wang")
 		wc, err := observeC.watch(completePath)
 		if err != nil {
-			t.Fatal(err)
+			t.Error(err)
 		}
 
 		events := make([]mvccpb.Event, 0)
diff --git a/remoting/etcdv3/listener.go b/remoting/etcdv3/listener.go
index c66928a6367cb2449de79a51b59d122a74a79911..fd6f9585979fabeb86d7a74d5817b6992b6a0ad4 100644
--- a/remoting/etcdv3/listener.go
+++ b/remoting/etcdv3/listener.go
@@ -36,7 +36,7 @@ import (
 // nolint
 type EventListener struct {
 	client     *Client
-	keyMapLock sync.Mutex
+	keyMapLock sync.RWMutex
 	keyMap     map[string]struct{}
 	wg         sync.WaitGroup
 }
@@ -181,9 +181,9 @@ func timeSecondDuration(sec int) time.Duration {
 //                            --------> listenServiceNodeEvent
 func (l *EventListener) ListenServiceEvent(key string, listener remoting.DataListener) {
 
-	l.keyMapLock.Lock()
+	l.keyMapLock.RLock()
 	_, ok := l.keyMap[key]
-	l.keyMapLock.Unlock()
+	l.keyMapLock.RUnlock()
 	if ok {
 		logger.Warnf("etcdv3 key %s has already been listened.", key)
 		return
diff --git a/remoting/exchange.go b/remoting/exchange.go
index 5fbd8ae9b449103d5f7e3b19db19bc6a9c73593d..ad136a7c5ea4946e8467c69cfbf43b275df8ceef 100644
--- a/remoting/exchange.go
+++ b/remoting/exchange.go
@@ -129,7 +129,7 @@ type AsyncCallbackResponse struct {
 	Reply     interface{}
 }
 
-// the client sends requst to server, there is one pendingResponse at client side to wait the response from server
+// the client sends request to server, there is one pendingResponse at client side to wait the response from server
 type PendingResponse struct {
 	seq       int64
 	Err       error
diff --git a/remoting/getty/dubbo_codec_for_test.go b/remoting/getty/dubbo_codec_for_test.go
index fca5da89643adee2f5e6c1e8dca8ec3da4c987e4..9afc18a9aaf477588a2fbf051096494b6f887fa2 100644
--- a/remoting/getty/dubbo_codec_for_test.go
+++ b/remoting/getty/dubbo_codec_for_test.go
@@ -99,7 +99,7 @@ func (c *DubboTestCodec) EncodeRequest(request *remoting.Request) (*bytes.Buffer
 	return pkg.Marshal()
 }
 
-// encode heartbeart request
+// encode heartbeat request
 func (c *DubboTestCodec) encodeHeartbeartReqeust(request *remoting.Request) (*bytes.Buffer, error) {
 	header := impl.DubboHeader{
 		Type:     impl.PackageHeartbeat,
@@ -171,10 +171,7 @@ func (c *DubboTestCodec) Decode(data []byte) (remoting.DecodeResult, int, error)
 }
 
 func (c *DubboTestCodec) isRequest(data []byte) bool {
-	if data[2]&byte(0x80) == 0x00 {
-		return false
-	}
-	return true
+	return data[2]&byte(0x80) != 0x00
 }
 
 // decode request
@@ -230,7 +227,6 @@ func (c *DubboTestCodec) decodeRequest(data []byte) (*remoting.Request, int, err
 func (c *DubboTestCodec) decodeResponse(data []byte) (*remoting.Response, int, error) {
 	buf := bytes.NewBuffer(data)
 	pkg := impl.NewDubboPackage(buf)
-	response := &remoting.Response{}
 	err := pkg.Unmarshal()
 	if err != nil {
 		originErr := perrors.Cause(err)
@@ -240,7 +236,7 @@ func (c *DubboTestCodec) decodeResponse(data []byte) (*remoting.Response, int, e
 		}
 		return nil, 0, perrors.WithStack(err)
 	}
-	response = &remoting.Response{
+	response := &remoting.Response{
 		ID: pkg.Header.ID,
 		//Version:  pkg.Header.,
 		SerialID: pkg.Header.SerialID,
diff --git a/remoting/getty/getty_client.go b/remoting/getty/getty_client.go
index e432ca55a9bfb32575fad183f93438b8cb7801fb..774f999e8a5ae61edc383bbf904c90aae15293bb 100644
--- a/remoting/getty/getty_client.go
+++ b/remoting/getty/getty_client.go
@@ -19,6 +19,7 @@ package getty
 
 import (
 	"math/rand"
+	"sync"
 	"time"
 )
 
@@ -38,14 +39,12 @@ import (
 )
 
 var (
-	errInvalidCodecType  = perrors.New("illegal CodecType")
-	errInvalidAddress    = perrors.New("remote address invalid or empty")
 	errSessionNotExist   = perrors.New("session not exist")
 	errClientClosed      = perrors.New("client closed")
-	errClientReadTimeout = perrors.New("client read timeout")
+	errClientReadTimeout = perrors.New("maybe the client read timeout or fail to decode tcp stream in Writer.Write")
 
 	clientConf   *ClientConfig
-	clientGrpool *gxsync.TaskPool
+	clientGrpool gxsync.GenericTaskPool
 )
 
 // it is init client for single protocol.
@@ -101,16 +100,13 @@ func SetClientConf(c ClientConfig) {
 }
 
 func setClientGrpool() {
-	if clientConf.GrPoolSize > 1 {
-		clientGrpool = gxsync.NewTaskPool(gxsync.WithTaskPoolTaskPoolSize(clientConf.GrPoolSize), gxsync.WithTaskPoolTaskQueueLength(clientConf.QueueLen),
-			gxsync.WithTaskPoolTaskQueueNumber(clientConf.QueueNumber))
-	}
+	clientGrpool = gxsync.NewTaskPoolSimple(clientConf.GrPoolSize)
 }
 
 // Options : param config
 type Options struct {
 	// connect timeout
-	// remove request timeout, it will be calulate for every request
+	// remove request timeout, it will be calculate for every request
 	ConnectTimeout time.Duration
 	// request timeout
 	RequestTimeout time.Duration
@@ -121,6 +117,7 @@ type Client struct {
 	addr           string
 	opts           Options
 	conf           ClientConfig
+	mux            sync.RWMutex
 	pool           *gettyRPCClientPool
 	codec          remoting.Codec
 	ExchangeClient *remoting.ExchangeClient
@@ -166,10 +163,13 @@ func (c *Client) Connect(url *common.URL) error {
 
 // close network connection
 func (c *Client) Close() {
-	if c.pool != nil {
-		c.pool.close()
-	}
+	c.mux.Lock()
+	p := c.pool
 	c.pool = nil
+	c.mux.Unlock()
+	if p != nil {
+		p.close()
+	}
 }
 
 // send request
@@ -181,8 +181,15 @@ func (c *Client) Request(request *remoting.Request, timeout time.Duration, respo
 	if session == nil {
 		return errSessionNotExist
 	}
-
-	if err = c.transfer(session, request, timeout); err != nil {
+	var (
+		totalLen int
+		sendLen  int
+	)
+	if totalLen, sendLen, err = c.transfer(session, request, timeout); err != nil {
+		if sendLen != 0 && totalLen != sendLen {
+			logger.Warnf("start to close the session at request because %d of %d bytes data is sent success. err:%+v", sendLen, totalLen, err)
+			go c.Close()
+		}
 		return perrors.WithStack(err)
 	}
 
@@ -209,6 +216,11 @@ func (c *Client) IsAvailable() bool {
 }
 
 func (c *Client) selectSession(addr string) (*gettyRPCClient, getty.Session, error) {
+	c.mux.RLock()
+	defer c.mux.RUnlock()
+	if c.pool == nil {
+		return nil, nil, perrors.New("client pool have been closed")
+	}
 	rpcClient, err := c.pool.getGettyRpcClient(addr)
 	if err != nil {
 		return nil, nil, perrors.WithStack(err)
@@ -216,7 +228,7 @@ func (c *Client) selectSession(addr string) (*gettyRPCClient, getty.Session, err
 	return rpcClient, rpcClient.selectSession(), nil
 }
 
-func (c *Client) transfer(session getty.Session, request *remoting.Request, timeout time.Duration) error {
-	err := session.WritePkg(request, timeout)
-	return perrors.WithStack(err)
+func (c *Client) transfer(session getty.Session, request *remoting.Request, timeout time.Duration) (int, int, error) {
+	totalLen, sendLen, err := session.WritePkg(request, timeout)
+	return totalLen, sendLen, perrors.WithStack(err)
 }
diff --git a/remoting/getty/getty_client_test.go b/remoting/getty/getty_client_test.go
index d49be5030a8d18d77f0f0ad61d9c5790494c1654..c32e0c23f4b3705c3400a96a8bb1247c7e3eae40 100644
--- a/remoting/getty/getty_client_test.go
+++ b/remoting/getty/getty_client_test.go
@@ -87,7 +87,9 @@ func getClient(url *common.URL) *Client {
 
 	exchangeClient := remoting.NewExchangeClient(url, client, 5*time.Second, false)
 	client.SetExchangeClient(exchangeClient)
-	client.Connect(url)
+	if err := client.Connect(url); err != nil {
+		return nil
+	}
 	return client
 }
 
@@ -211,7 +213,9 @@ func testGetUser3(t *testing.T, c *Client) {
 	request := remoting.NewRequest("2.0.2")
 	invocation := createInvocation("GetUser3", nil, nil, []interface{}{},
 		[]reflect.Value{})
-	attachment := map[string]string{INTERFACE_KEY: "com.ikurento.user.UserProvider"}
+	attachment := map[string]string{
+		INTERFACE_KEY: "com.ikurento.user.UserProvider",
+	}
 	setAttachment(invocation, attachment)
 	request.Data = invocation
 	request.Event = false
@@ -341,7 +345,7 @@ func InitTest(t *testing.T) (*Server, *common.URL) {
 	hessian.RegisterPOJO(&User{})
 	remoting.RegistryCodec("dubbo", &DubboTestCodec{})
 
-	methods, err := common.ServiceMap.Register("", "dubbo", &UserProvider{})
+	methods, err := common.ServiceMap.Register("com.ikurento.user.UserProvider", "dubbo", "", "", &UserProvider{})
 	assert.NoError(t, err)
 	assert.Equal(t, "GetBigPkg,GetUser,GetUser0,GetUser1,GetUser2,GetUser3,GetUser4,GetUser5,GetUser6", methods)
 
@@ -387,14 +391,16 @@ func InitTest(t *testing.T) (*Server, *common.URL) {
 		}})
 	assert.NoError(t, srvConf.CheckValidity())
 
-	url, err := common.NewURL("dubbo://127.0.0.1:20060/UserProvider?anyhost=true&" +
+	url, err := common.NewURL("dubbo://127.0.0.1:20060/com.ikurento.user.UserProvider?anyhost=true&" +
 		"application=BDTService&category=providers&default.timeout=10000&dubbo=dubbo-provider-golang-1.0.0&" +
 		"environment=dev&interface=com.ikurento.user.UserProvider&ip=127.0.0.1&methods=GetUser%2C&" +
 		"module=dubbogo+user-info+server&org=ikurento.com&owner=ZX&pid=1447&revision=0.0.1&" +
 		"side=provider&timeout=3000&timestamp=1556509797245&bean.name=UserProvider")
+	assert.NoError(t, err)
 	// init server
 	userProvider := &UserProvider{}
-	common.ServiceMap.Register("", url.Protocol, userProvider)
+	_, err = common.ServiceMap.Register("", url.Protocol, "", "0.0.1", userProvider)
+	assert.NoError(t, err)
 	invoker := &proxy_factory.ProxyInvoker{
 		BaseInvoker: *protocol.NewBaseInvoker(url),
 	}
@@ -427,7 +433,7 @@ type (
 	}
 
 	UserProvider struct {
-		user map[string]User
+		//user map[string]User
 	}
 )
 
diff --git a/remoting/getty/getty_server.go b/remoting/getty/getty_server.go
index 620a01d83b11e4dd4db0dc25bc8f5759d3a64579..4930a6ad0ee0dbcde50a16e8df6b6245fb87a617 100644
--- a/remoting/getty/getty_server.go
+++ b/remoting/getty/getty_server.go
@@ -41,8 +41,7 @@ import (
 )
 
 var (
-	srvConf   *ServerConfig
-	srvGrpool *gxsync.TaskPool
+	srvConf *ServerConfig
 )
 
 func initServer(protocol string) {
@@ -76,7 +75,6 @@ func initServer(protocol string) {
 	if err := srvConf.CheckValidity(); err != nil {
 		panic(err)
 	}
-	SetServerGrpool()
 }
 
 // SetServerConfig set dubbo server config.
@@ -87,7 +85,6 @@ func SetServerConfig(s ServerConfig) {
 		logger.Warnf("[ServerConfig CheckValidity] error: %v", err)
 		return
 	}
-	SetServerGrpool()
 }
 
 // GetServerConfig get getty server config.
@@ -95,17 +92,6 @@ func GetServerConfig() ServerConfig {
 	return *srvConf
 }
 
-// SetServerGrpool set getty server GrPool
-func SetServerGrpool() {
-	if srvConf.GrPoolSize > 1 {
-		srvGrpool = gxsync.NewTaskPool(
-			gxsync.WithTaskPoolTaskPoolSize(srvConf.GrPoolSize),
-			gxsync.WithTaskPoolTaskQueueLength(srvConf.QueueLen),
-			gxsync.WithTaskPoolTaskQueueNumber(srvConf.QueueNumber),
-		)
-	}
-}
-
 // Server define getty server
 type Server struct {
 	conf           ServerConfig
@@ -151,16 +137,14 @@ func (s *Server) newSession(session getty.Session) error {
 		session.SetMaxMsgLen(conf.GettySessionParam.MaxMsgLen)
 		session.SetPkgHandler(NewRpcServerPackageHandler(s))
 		session.SetEventListener(s.rpcHandler)
-		session.SetWQLen(conf.GettySessionParam.PkgWQSize)
 		session.SetReadTimeout(conf.GettySessionParam.tcpReadTimeout)
 		session.SetWriteTimeout(conf.GettySessionParam.tcpWriteTimeout)
 		session.SetCronPeriod((int)(conf.heartbeatPeriod.Nanoseconds() / 1e6))
 		session.SetWaitTime(conf.GettySessionParam.waitTimeout)
 		logger.Debugf("server accepts new session:%s\n", session.Stat())
-		session.SetTaskPool(srvGrpool)
 		return nil
 	}
-	if tcpConn, ok = session.Conn().(*net.TCPConn); !ok {
+	if _, ok = session.Conn().(*net.TCPConn); !ok {
 		panic(fmt.Sprintf("%s, session.conn{%#v} is not tcp connection\n", session.Stat(), session.Conn()))
 	}
 
@@ -192,13 +176,11 @@ func (s *Server) newSession(session getty.Session) error {
 	session.SetMaxMsgLen(conf.GettySessionParam.MaxMsgLen)
 	session.SetPkgHandler(NewRpcServerPackageHandler(s))
 	session.SetEventListener(s.rpcHandler)
-	session.SetWQLen(conf.GettySessionParam.PkgWQSize)
 	session.SetReadTimeout(conf.GettySessionParam.tcpReadTimeout)
 	session.SetWriteTimeout(conf.GettySessionParam.tcpWriteTimeout)
 	session.SetCronPeriod((int)(conf.heartbeatPeriod.Nanoseconds() / 1e6))
 	session.SetWaitTime(conf.GettySessionParam.waitTimeout)
 	logger.Debugf("server accepts new session: %s", session.Stat())
-	session.SetTaskPool(srvGrpool)
 	return nil
 }
 
@@ -210,17 +192,15 @@ func (s *Server) Start() {
 	)
 
 	addr = s.addr
+	serverOpts := []getty.ServerOption{getty.WithLocalAddress(addr)}
 	if s.conf.SSLEnabled {
-		tcpServer = getty.NewTCPServer(
-			getty.WithLocalAddress(addr),
-			getty.WithServerSslEnabled(s.conf.SSLEnabled),
-			getty.WithServerTlsConfigBuilder(config.GetServerTlsConfigBuilder()),
-		)
-	} else {
-		tcpServer = getty.NewTCPServer(
-			getty.WithLocalAddress(addr),
-		)
+		serverOpts = append(serverOpts, getty.WithServerSslEnabled(s.conf.SSLEnabled),
+			getty.WithServerTlsConfigBuilder(config.GetServerTlsConfigBuilder()))
 	}
+
+	serverOpts = append(serverOpts, getty.WithServerTaskPool(gxsync.NewTaskPoolSimple(s.conf.GrPoolSize)))
+
+	tcpServer = getty.NewTCPServer(serverOpts...)
 	tcpServer.RunEventLoop(s.newSession)
 	logger.Debugf("s bind addr{%s} ok!", s.addr)
 	s.tcpServer = tcpServer
diff --git a/remoting/getty/listener.go b/remoting/getty/listener.go
index b2f7790f2ffcab6832224e07219016cb46a3fa4d..5443d371021c1235601a30a2e0011eeb9545713c 100644
--- a/remoting/getty/listener.go
+++ b/remoting/getty/listener.go
@@ -101,7 +101,7 @@ func (h *RpcClientHandler) OnMessage(session getty.Session, pkg interface{}) {
 		logger.Errorf("illegal package")
 		return
 	}
-	// get heartbeart request from server
+	// get heartbeat request from server
 	if result.IsRequest {
 		req := result.Result.(*remoting.Request)
 		if req.Event {
@@ -114,12 +114,12 @@ func (h *RpcClientHandler) OnMessage(session getty.Session, pkg interface{}) {
 			reply(session, resp)
 			return
 		}
-		logger.Errorf("illegal request but not heartbeart. {%#v}", req)
+		logger.Errorf("illegal request but not heartbeat. {%#v}", req)
 		return
 	}
 	h.timeoutTimes = 0
 	p := result.Result.(*remoting.Response)
-	// get heartbeart
+	// get heartbeat
 	if p.Event {
 		logger.Debugf("get rpc heartbeat response{%#v}", p)
 		if p.Error != nil {
@@ -138,7 +138,7 @@ func (h *RpcClientHandler) OnMessage(session getty.Session, pkg interface{}) {
 
 // OnCron check the session health periodic. if the session's sessionTimeout has reached, just close the session
 func (h *RpcClientHandler) OnCron(session getty.Session) {
-	rpcSession, err := h.conn.getClientRpcSession(session)
+	rs, err := h.conn.getClientRpcSession(session)
 	if err != nil {
 		logger.Errorf("client.getClientSession(session{%s}) = error{%v}",
 			session.Stat(), perrors.WithStack(err))
@@ -146,7 +146,7 @@ func (h *RpcClientHandler) OnCron(session getty.Session) {
 	}
 	if h.conn.pool.rpcClient.conf.sessionTimeout.Nanoseconds() < time.Since(session.GetActive()).Nanoseconds() {
 		logger.Warnf("session{%s} timeout{%s}, reqNum{%d}",
-			session.Stat(), time.Since(session.GetActive()).String(), rpcSession.reqNum)
+			session.Stat(), time.Since(session.GetActive()).String(), rs.reqNum)
 		h.conn.removeSession(session) // -> h.conn.close() -> h.conn.pool.remove(h.conn)
 		return
 	}
@@ -237,8 +237,8 @@ func (h *RpcServerHandler) OnMessage(session getty.Session, pkg interface{}) {
 	}
 	h.rwlock.Unlock()
 
-	decodeResult, ok := pkg.(remoting.DecodeResult)
-	if !ok {
+	decodeResult, drOK := pkg.(remoting.DecodeResult)
+	if !drOK {
 		logger.Errorf("illegal package{%#v}", pkg)
 		return
 	}
@@ -252,7 +252,7 @@ func (h *RpcServerHandler) OnMessage(session getty.Session, pkg interface{}) {
 			res.Handle()
 			return
 		}
-		logger.Errorf("illegal package but not heartbeart. {%#v}", pkg)
+		logger.Errorf("illegal package but not heartbeat. {%#v}", pkg)
 		return
 	}
 	req := decodeResult.Result.(*remoting.Request)
@@ -355,7 +355,11 @@ func (h *RpcServerHandler) OnCron(session getty.Session) {
 }
 
 func reply(session getty.Session, resp *remoting.Response) {
-	if err := session.WritePkg(resp, WritePkg_Timeout); err != nil {
+	if totalLen, sendLen, err := session.WritePkg(resp, WritePkg_Timeout); err != nil {
+		if sendLen != 0 && totalLen != sendLen {
+			logger.Warnf("start to close the session at replying because %d of %d bytes data is sent success. err:%+v", sendLen, totalLen, err)
+			go session.Close()
+		}
 		logger.Errorf("WritePkg error: %#v, %#v", perrors.WithStack(err), resp)
 	}
 }
@@ -366,7 +370,11 @@ func heartbeat(session getty.Session, timeout time.Duration, callBack func(err e
 	req.Event = true
 	resp := remoting.NewPendingResponse(req.ID)
 	remoting.AddPendingResponse(resp)
-	err := session.WritePkg(req, 3*time.Second)
+	totalLen, sendLen, err := session.WritePkg(req, 3*time.Second)
+	if sendLen != 0 && totalLen != sendLen {
+		logger.Warnf("start to close the session at heartbeat because %d of %d bytes data is sent success. err:%+v", sendLen, totalLen, err)
+		go session.Close()
+	}
 
 	go func() {
 		var err1 error
diff --git a/remoting/getty/listener_test.go b/remoting/getty/listener_test.go
index 7e7ac5fed440a02188057d520a944b48c8bf7b64..2700ed8cd8e03f0a37c2d978cd03932ef8d5f8cb 100644
--- a/remoting/getty/listener_test.go
+++ b/remoting/getty/listener_test.go
@@ -23,14 +23,14 @@ import (
 )
 
 import (
+	"github.com/opentracing/opentracing-go"
+	"github.com/opentracing/opentracing-go/mocktracer"
 	"github.com/stretchr/testify/assert"
 )
 
 import (
 	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/protocol/invocation"
-	"github.com/opentracing/opentracing-go"
-	"github.com/opentracing/opentracing-go/mocktracer"
 )
 
 // test rebuild the ctx
@@ -47,7 +47,7 @@ func TestRebuildCtx(t *testing.T) {
 	assert.Nil(t, ctx.Value(constant.TRACING_REMOTE_SPAN_CTX))
 
 	span, ctx := opentracing.StartSpanFromContext(ctx, "Test-Client")
-
+	assert.NotNil(t, ctx)
 	err := injectTraceCtx(span, inv)
 	assert.NoError(t, err)
 
@@ -63,7 +63,7 @@ func TestRebuildCtx(t *testing.T) {
 // Once we decided to transfer more context's key-value, we should change this.
 // now we only support rebuild the tracing context
 func rebuildCtx(inv *invocation.RPCInvocation) context.Context {
-	ctx := context.WithValue(context.Background(), "attachment", inv.Attachments())
+	ctx := context.WithValue(context.Background(), constant.DubboCtxKey("attachment"), inv.Attachments())
 
 	// actually, if user do not use any opentracing framework, the err will not be nil.
 	spanCtx, err := opentracing.GlobalTracer().Extract(opentracing.TextMap,
diff --git a/remoting/getty/opentracing.go b/remoting/getty/opentracing.go
index 7db733cbe919f2bef46cfc477bda836dc2da0d45..4ba4fde9d880dee8437f8bb3dfdfec910f96fdcc 100644
--- a/remoting/getty/opentracing.go
+++ b/remoting/getty/opentracing.go
@@ -35,14 +35,6 @@ func injectTraceCtx(currentSpan opentracing.Span, inv *invocation_impl.RPCInvoca
 	return err
 }
 
-func extractTraceCtx(inv *invocation_impl.RPCInvocation) (opentracing.SpanContext, error) {
-	traceAttachments := filterContext(inv.Attachments())
-	// actually, if user do not use any opentracing framework, the err will not be nil.
-	spanCtx, err := opentracing.GlobalTracer().Extract(opentracing.TextMap,
-		opentracing.TextMapCarrier(traceAttachments))
-	return spanCtx, err
-}
-
 func filterContext(attachments map[string]interface{}) map[string]string {
 	var traceAttchment = make(map[string]string)
 	for k, v := range attachments {
diff --git a/remoting/getty/pool.go b/remoting/getty/pool.go
index 9689175bcf9838de595f292779b099ae9615d8e8..2b1cdfe2f49bfee0d5291f2eaf4183db71b8aa31 100644
--- a/remoting/getty/pool.go
+++ b/remoting/getty/pool.go
@@ -60,21 +60,20 @@ func newGettyRPCClientConn(pool *gettyRPCClientPool, addr string) (*gettyRPCClie
 		sslEnabled  bool
 	)
 	sslEnabled = pool.sslEnabled
+	clientOpts := []getty.ClientOption{
+		getty.WithServerAddress(addr),
+		getty.WithConnectionNumber((int)(pool.rpcClient.conf.ConnectionNum)),
+		getty.WithReconnectInterval(pool.rpcClient.conf.ReconnectInterval),
+	}
 	if sslEnabled {
-		gettyClient = getty.NewTCPClient(
-			getty.WithServerAddress(addr),
-			getty.WithConnectionNumber((int)(pool.rpcClient.conf.ConnectionNum)),
-			getty.WithReconnectInterval(pool.rpcClient.conf.ReconnectInterval),
-			getty.WithClientSslEnabled(pool.sslEnabled),
-			getty.WithClientTlsConfigBuilder(config.GetClientTlsConfigBuilder()),
-		)
-	} else {
-		gettyClient = getty.NewTCPClient(
-			getty.WithServerAddress(addr),
-			getty.WithConnectionNumber((int)(pool.rpcClient.conf.ConnectionNum)),
-			getty.WithReconnectInterval(pool.rpcClient.conf.ReconnectInterval),
-		)
+		clientOpts = append(clientOpts, getty.WithClientSslEnabled(pool.sslEnabled), getty.WithClientTlsConfigBuilder(config.GetClientTlsConfigBuilder()))
+	}
+
+	if clientGrpool != nil {
+		clientOpts = append(clientOpts, getty.WithClientTaskPool(clientGrpool))
 	}
+
+	gettyClient = getty.NewTCPClient(clientOpts...)
 	c := &gettyRPCClient{
 		addr:        addr,
 		pool:        pool,
@@ -91,7 +90,7 @@ func newGettyRPCClientConn(pool *gettyRPCClientPool, addr string) (*gettyRPCClie
 			break
 		}
 
-		if time.Now().Sub(start) > connectTimeout {
+		if time.Since(start) > connectTimeout {
 			c.gettyClient.Close()
 			return nil, perrors.New(fmt.Sprintf("failed to create client connection to %s in %s", addr, connectTimeout))
 		}
@@ -136,40 +135,44 @@ func (c *gettyRPCClient) newSession(session getty.Session) error {
 		session.SetMaxMsgLen(conf.GettySessionParam.MaxMsgLen)
 		session.SetPkgHandler(NewRpcClientPackageHandler(c.pool.rpcClient))
 		session.SetEventListener(NewRpcClientHandler(c))
-		session.SetWQLen(conf.GettySessionParam.PkgWQSize)
 		session.SetReadTimeout(conf.GettySessionParam.tcpReadTimeout)
 		session.SetWriteTimeout(conf.GettySessionParam.tcpWriteTimeout)
 		session.SetCronPeriod((int)(conf.heartbeatPeriod.Nanoseconds() / 1e6))
 		session.SetWaitTime(conf.GettySessionParam.waitTimeout)
 		logger.Debugf("client new session:%s\n", session.Stat())
-		session.SetTaskPool(clientGrpool)
 		return nil
 	}
 	if tcpConn, ok = session.Conn().(*net.TCPConn); !ok {
 		panic(fmt.Sprintf("%s, session.conn{%#v} is not tcp connection\n", session.Stat(), session.Conn()))
 	}
 
-	tcpConn.SetNoDelay(conf.GettySessionParam.TcpNoDelay)
-	tcpConn.SetKeepAlive(conf.GettySessionParam.TcpKeepAlive)
+	if err := tcpConn.SetNoDelay(conf.GettySessionParam.TcpNoDelay); err != nil {
+		logger.Error("tcpConn.SetNoDelay() = error:%v", err)
+	}
+	if err := tcpConn.SetKeepAlive(conf.GettySessionParam.TcpKeepAlive); err != nil {
+		logger.Error("tcpConn.SetKeepAlive() = error:%v", err)
+	}
 	if conf.GettySessionParam.TcpKeepAlive {
-		tcpConn.SetKeepAlivePeriod(conf.GettySessionParam.keepAlivePeriod)
+		if err := tcpConn.SetKeepAlivePeriod(conf.GettySessionParam.keepAlivePeriod); err != nil {
+			logger.Error("tcpConn.SetKeepAlivePeriod() = error:%v", err)
+		}
+	}
+	if err := tcpConn.SetReadBuffer(conf.GettySessionParam.TcpRBufSize); err != nil {
+		logger.Error("tcpConn.SetReadBuffer() = error:%v", err)
+	}
+	if err := tcpConn.SetWriteBuffer(conf.GettySessionParam.TcpWBufSize); err != nil {
+		logger.Error("tcpConn.SetWriteBuffer() = error:%v", err)
 	}
-	tcpConn.SetReadBuffer(conf.GettySessionParam.TcpRBufSize)
-	tcpConn.SetWriteBuffer(conf.GettySessionParam.TcpWBufSize)
 
 	session.SetName(conf.GettySessionParam.SessionName)
 	session.SetMaxMsgLen(conf.GettySessionParam.MaxMsgLen)
 	session.SetPkgHandler(NewRpcClientPackageHandler(c.pool.rpcClient))
 	session.SetEventListener(NewRpcClientHandler(c))
-	session.SetWQLen(conf.GettySessionParam.PkgWQSize)
 	session.SetReadTimeout(conf.GettySessionParam.tcpReadTimeout)
 	session.SetWriteTimeout(conf.GettySessionParam.tcpWriteTimeout)
 	session.SetCronPeriod((int)(conf.heartbeatPeriod.Nanoseconds() / 1e6))
 	session.SetWaitTime(conf.GettySessionParam.waitTimeout)
 	logger.Debugf("client new session:%s\n", session.Stat())
-
-	session.SetTaskPool(clientGrpool)
-
 	return nil
 }
 
@@ -260,33 +263,29 @@ func (c *gettyRPCClient) updateSession(session getty.Session) {
 
 func (c *gettyRPCClient) getClientRpcSession(session getty.Session) (rpcSession, error) {
 	var (
-		err        error
-		rpcSession rpcSession
+		err error
+		rs  rpcSession
 	)
 	c.lock.RLock()
 	defer c.lock.RUnlock()
 	if c.sessions == nil {
-		return rpcSession, errClientClosed
+		return rs, errClientClosed
 	}
 
 	err = errSessionNotExist
 	for _, s := range c.sessions {
 		if s.session == session {
-			rpcSession = *s
+			rs = *s
 			err = nil
 			break
 		}
 	}
 
-	return rpcSession, perrors.WithStack(err)
+	return rs, perrors.WithStack(err)
 }
 
 func (c *gettyRPCClient) isAvailable() bool {
-	if c.selectSession() == nil {
-		return false
-	}
-
-	return true
+	return c.selectSession() != nil
 }
 
 func (c *gettyRPCClient) close() error {
@@ -304,9 +303,7 @@ func (c *gettyRPCClient) close() error {
 			c.gettyClient = nil
 
 			sessions = make([]*rpcSession, 0, len(c.sessions))
-			for _, s := range c.sessions {
-				sessions = append(sessions, s)
-			}
+			sessions = append(sessions, c.sessions...)
 			c.sessions = c.sessions[:0]
 		}()
 
@@ -359,16 +356,16 @@ func (p *gettyRPCClientPool) close() {
 }
 
 func (p *gettyRPCClientPool) getGettyRpcClient(addr string) (*gettyRPCClient, error) {
-	conn, err := p.get()
-	if err == nil && conn == nil {
+	conn, connErr := p.get()
+	if connErr == nil && conn == nil {
 		// create new conn
-		rpcClientConn, err := newGettyRPCClientConn(p, addr)
-		if err == nil {
+		rpcClientConn, rpcErr := newGettyRPCClientConn(p, addr)
+		if rpcErr == nil {
 			p.put(rpcClientConn)
 		}
-		return rpcClientConn, perrors.WithStack(err)
+		return rpcClientConn, perrors.WithStack(rpcErr)
 	}
-	return conn, perrors.WithStack(err)
+	return conn, perrors.WithStack(connErr)
 }
 
 func (p *gettyRPCClientPool) get() (*gettyRPCClient, error) {
diff --git a/remoting/kubernetes/client.go b/remoting/kubernetes/client.go
index fce9e80eb88b73cfbe96a4aaebeb106a902fe41d..ce6bcccea50643cd49f3f99fcf4b86e73309b28c 100644
--- a/remoting/kubernetes/client.go
+++ b/remoting/kubernetes/client.go
@@ -48,16 +48,16 @@ type Client struct {
 
 // newClient returns Client instance for registry
 func newClient(url *common.URL) (*Client, error) {
-
-	ctx, cancel := context.WithCancel(context.Background())
-
 	// read type
 	r, err := strconv.Atoi(url.GetParams().Get(constant.ROLE_KEY))
 	if err != nil {
 		return nil, perrors.WithMessage(err, "atoi role")
 	}
+	ctx, cancel := context.WithCancel(context.Background())
+
 	controller, err := newDubboRegistryController(ctx, common.RoleType(r), GetInClusterKubernetesClient)
 	if err != nil {
+		cancel()
 		return nil, perrors.WithMessage(err, "new dubbo-registry controller")
 	}
 
@@ -186,12 +186,12 @@ func ValidateClient(container clientFacade) error {
 
 // NewMockClient exports for registry package test
 func NewMockClient(podList *v1.PodList) (*Client, error) {
-
 	ctx, cancel := context.WithCancel(context.Background())
 	controller, err := newDubboRegistryController(ctx, common.CONSUMER, func() (kubernetes.Interface, error) {
 		return fake.NewSimpleClientset(podList), nil
 	})
 	if err != nil {
+		cancel()
 		return nil, perrors.WithMessage(err, "new dubbo-registry controller")
 	}
 
diff --git a/remoting/kubernetes/client_test.go b/remoting/kubernetes/client_test.go
index d6c5a2e88057459c0a87cd9a607e9c10970b07b2..9cc421225ea15c250c3ea1196432cb65635144a2 100644
--- a/remoting/kubernetes/client_test.go
+++ b/remoting/kubernetes/client_test.go
@@ -317,7 +317,8 @@ func TestClientGetChildrenKVList(t *testing.T) {
 
 		wc, done, err := client.WatchWithPrefix(prefix)
 		if err != nil {
-			t.Fatal(err)
+			t.Error(err)
+			return
 		}
 
 		wg.Done()
@@ -365,7 +366,7 @@ func TestClientGetChildrenKVList(t *testing.T) {
 	// start get all children
 	kList, vList, err := client.GetChildren(prefix)
 	if err != nil {
-		t.Fatal(err)
+		t.Error(err)
 	}
 
 	for i := 0; i < len(kList); i++ {
@@ -392,7 +393,7 @@ func TestClientWatchPrefix(t *testing.T) {
 
 		wc, done, err := client.WatchWithPrefix(prefix)
 		if err != nil {
-			t.Fatal(err)
+			t.Error(err)
 		}
 
 		wg.Done()
@@ -435,7 +436,7 @@ func TestClientWatch(t *testing.T) {
 
 		wc, done, err := client.Watch(prefix)
 		if err != nil {
-			t.Fatal(err)
+			t.Error(err)
 		}
 		wg.Done()
 
diff --git a/remoting/kubernetes/facade_test.go b/remoting/kubernetes/facade_test.go
index 00e2e1171c54c2b07973b66cb96cf64e67683f00..a6c6c02b515b6e1ebc815bb5b388ae68db68621d 100644
--- a/remoting/kubernetes/facade_test.go
+++ b/remoting/kubernetes/facade_test.go
@@ -19,7 +19,6 @@ package kubernetes
 
 import (
 	"strconv"
-	"sync"
 	"testing"
 )
 
@@ -30,9 +29,9 @@ import (
 
 type mockFacade struct {
 	*common.URL
-	client  *Client
-	cltLock sync.Mutex
-	done    chan struct{}
+	client *Client
+	//cltLock sync.Mutex
+	//done    chan struct{}
 }
 
 func (r *mockFacade) Client() *Client {
diff --git a/remoting/kubernetes/registry_controller.go b/remoting/kubernetes/registry_controller.go
index 20be0d72ec1ce4c379f44d3218ffbd0cfd3d2a63..f66163d3c68768e99a84fbca0110e099985429be 100644
--- a/remoting/kubernetes/registry_controller.go
+++ b/remoting/kubernetes/registry_controller.go
@@ -442,7 +442,7 @@ func (c *dubboRegistryController) initCurrentPod() error {
 		return perrors.WithMessage(err, "get patch")
 	}
 
-	currentPod, err = c.patchCurrentPod(p)
+	_, err = c.patchCurrentPod(p)
 	if err != nil {
 		return perrors.WithMessage(err, "patch to current pod")
 	}
diff --git a/remoting/kubernetes/watch.go b/remoting/kubernetes/watch.go
index 07eeb09b4dd4627fdd3b18ee4d59356911b3a9b1..7bb5ef1754836b481089d67b9cf34437567ffa9a 100644
--- a/remoting/kubernetes/watch.go
+++ b/remoting/kubernetes/watch.go
@@ -116,21 +116,17 @@ type watcherSetImpl struct {
 // closeWatchers
 // when the watcher-set was closed
 func (s *watcherSetImpl) closeWatchers() {
-
-	select {
-	case <-s.ctx.Done():
-
-		// parent ctx be canceled, close the watch-set's watchers
-		s.lock.Lock()
-		watchers := s.watchers
-		s.lock.Unlock()
-
-		for _, w := range watchers {
-			// stop data stream
-			// close(w.ch)
-			// stop watcher
-			w.stop()
-		}
+	<-s.ctx.Done()
+	// parent ctx be canceled, close the watch-set's watchers
+	s.lock.Lock()
+	watchers := s.watchers
+	s.lock.Unlock()
+
+	for _, w := range watchers {
+		// stop data stream
+		// close(w.ch)
+		// stop watcher
+		w.stop()
 	}
 }
 
diff --git a/remoting/kubernetes/watch_test.go b/remoting/kubernetes/watch_test.go
index 8889103be212381c07ffff3c3d4399f41aeee564..efefcc5dc9db629aa0f109a8da4f4227c18504fa 100644
--- a/remoting/kubernetes/watch_test.go
+++ b/remoting/kubernetes/watch_test.go
@@ -42,7 +42,8 @@ func TestWatchSet(t *testing.T) {
 			defer wg.Done()
 			w, err := s.Watch("key-1", false)
 			if err != nil {
-				t.Fatal(err)
+				t.Error(err)
+				return
 			}
 			for {
 				select {
@@ -64,7 +65,8 @@ func TestWatchSet(t *testing.T) {
 			defer wg.Done()
 			w, err := s.Watch("key", true)
 			if err != nil {
-				t.Fatal(err)
+				t.Error(err)
+				return
 			}
 
 			for {
@@ -86,7 +88,8 @@ func TestWatchSet(t *testing.T) {
 				Key:   "key-" + strconv.Itoa(i),
 				Value: strconv.Itoa(i),
 			}); err != nil {
-				t.Fatal(err)
+				t.Error(err)
+				return
 			}
 		}(i)
 	}
diff --git a/remoting/nacos/builder_test.go b/remoting/nacos/builder_test.go
index 61d13ef26f9f1d17173bbeb11468f9babdade2f5..48199bea45b85a3929b174af21791e599284c57c 100644
--- a/remoting/nacos/builder_test.go
+++ b/remoting/nacos/builder_test.go
@@ -34,11 +34,13 @@ func TestNewNacosClient(t *testing.T) {
 	client, err := NewNacosClient(rc)
 
 	// address is nil
+	assert.Nil(t, client)
 	assert.NotNil(t, err)
 
 	rc.Address = "console.nacos.io:80:123"
 	client, err = NewNacosClient(rc)
 	// invalid address
+	assert.Nil(t, client)
 	assert.NotNil(t, err)
 
 	rc.Address = "console.nacos.io:80"
diff --git a/remoting/zookeeper/client.go b/remoting/zookeeper/client.go
index fbd90762eb34f361a38486ef2d8f5f10699a96f7..54f2992693abba283a7c845b6d35451f8d1fa2ac 100644
--- a/remoting/zookeeper/client.go
+++ b/remoting/zookeeper/client.go
@@ -38,7 +38,7 @@ const (
 	// ConnDelay connection delay interval
 	ConnDelay = 3
 	// MaxFailTimes max fail times
-	MaxFailTimes = 15
+	MaxFailTimes = 3
 )
 
 var (
@@ -128,18 +128,18 @@ func ValidateZookeeperClient(container ZkClientFacade, opts ...Option) error {
 
 	if container.ZkClient() == nil {
 		// in dubbo, every registry only connect one node, so this is []string{r.Address}
-		timeout, err := time.ParseDuration(url.GetParam(constant.REGISTRY_TIMEOUT_KEY, constant.DEFAULT_REG_TIMEOUT))
-		if err != nil {
-			logger.Errorf("timeout config %v is invalid ,err is %v",
-				url.GetParam(constant.REGISTRY_TIMEOUT_KEY, constant.DEFAULT_REG_TIMEOUT), err.Error())
-			return perrors.WithMessagef(err, "newZookeeperClient(address:%+v)", url.Location)
+		timeout, paramErr := time.ParseDuration(url.GetParam(constant.REGISTRY_TIMEOUT_KEY, constant.DEFAULT_REG_TIMEOUT))
+		if paramErr != nil {
+			logger.Errorf("timeout config %v is invalid, err is %v",
+				url.GetParam(constant.REGISTRY_TIMEOUT_KEY, constant.DEFAULT_REG_TIMEOUT), paramErr.Error())
+			return perrors.WithMessagef(paramErr, "newZookeeperClient(address:%+v)", url.Location)
 		}
 		zkAddresses := strings.Split(url.Location, ",")
-		newClient, err := NewZookeeperClient(options.zkName, zkAddresses, timeout)
-		if err != nil {
+		newClient, cltErr := NewZookeeperClient(options.zkName, zkAddresses, timeout)
+		if cltErr != nil {
 			logger.Warnf("newZookeeperClient(name{%s}, zk address{%v}, timeout{%d}) = error{%v}",
-				options.zkName, url.Location, timeout.String(), err)
-			return perrors.WithMessagef(err, "newZookeeperClient(address:%+v)", url.Location)
+				options.zkName, url.Location, timeout.String(), cltErr)
+			return perrors.WithMessagef(cltErr, "newZookeeperClient(address:%+v)", url.Location)
 		}
 		container.SetZkClient(newClient)
 		connected = true
@@ -259,7 +259,6 @@ func (z *ZookeeperClient) HandleZkEvent(session <-chan zk.Event) {
 			switch (int)(event.State) {
 			case (int)(zk.StateDisconnected):
 				logger.Warnf("zk{addr:%s} state is StateDisconnected, so close the zk client{name:%s}.", z.ZkAddrs, z.name)
-				z.stop()
 				z.Lock()
 				conn := z.Conn
 				z.Conn = nil
@@ -267,6 +266,7 @@ func (z *ZookeeperClient) HandleZkEvent(session <-chan zk.Event) {
 				if conn != nil {
 					conn.Close()
 				}
+				z.stop()
 				return
 			case (int)(zk.EventNodeDataChanged), (int)(zk.EventNodeChildrenChanged):
 				logger.Infof("zkClient{%s} get zk node changed event{path:%s}", z.name, event.Path)
@@ -555,7 +555,7 @@ func (z *ZookeeperClient) GetChildrenW(path string) ([]string, <-chan zk.Event,
 		if err == zk.ErrNoNode {
 			return nil, nil, errNilNode
 		}
-		logger.Errorf("zk.ChildrenW(path{%s}) = error(%v)", path, err)
+		logger.Warnf("zk.ChildrenW(path{%s}) = error(%v)", path, err)
 		return nil, nil, perrors.WithMessagef(err, "zk.ChildrenW(path:%s)", path)
 	}
 	if stat == nil {
@@ -637,6 +637,9 @@ func (z *ZookeeperClient) SetContent(zkPath string, content []byte, version int3
 
 // getConn gets zookeeper connection safely
 func (z *ZookeeperClient) getConn() *zk.Conn {
+	if z == nil {
+		return nil
+	}
 	z.RLock()
 	defer z.RUnlock()
 	return z.Conn
diff --git a/remoting/zookeeper/client_test.go b/remoting/zookeeper/client_test.go
index 34741700ca2a9d86ee5321b0b19ed64b2b1a25a8..3d0949973d0aa01acf5178d20afb854debb5c763 100644
--- a/remoting/zookeeper/client_test.go
+++ b/remoting/zookeeper/client_test.go
@@ -81,7 +81,10 @@ func verifyEventStateOrder(t *testing.T, c <-chan zk.Event, expectedStates []zk.
 func Test_newMockZookeeperClient(t *testing.T) {
 	ts, z, event, err := NewMockZookeeperClient("test", 15*time.Second)
 	assert.NoError(t, err)
-	defer ts.Stop()
+	defer func() {
+		err := ts.Stop()
+		assert.Nil(t, err)
+	}()
 	states := []zk.State{zk.StateConnecting, zk.StateConnected, zk.StateHasSession}
 	verifyEventStateOrder(t, event, states, "event channel")
 
@@ -92,7 +95,10 @@ func Test_newMockZookeeperClient(t *testing.T) {
 func TestCreate(t *testing.T) {
 	ts, z, event, err := NewMockZookeeperClient("test", 15*time.Second)
 	assert.NoError(t, err)
-	defer ts.Stop()
+	defer func() {
+		_ = ts.Stop()
+		assert.Nil(t, err)
+	}()
 	err = z.Create("test1/test2/test3/test4")
 	assert.NoError(t, err)
 
@@ -103,7 +109,10 @@ func TestCreate(t *testing.T) {
 func TestCreateDelete(t *testing.T) {
 	ts, z, event, err := NewMockZookeeperClient("test", 15*time.Second)
 	assert.NoError(t, err)
-	defer ts.Stop()
+	defer func() {
+		_ = ts.Stop()
+		assert.Nil(t, err)
+	}()
 
 	states := []zk.State{zk.StateConnecting, zk.StateConnected, zk.StateHasSession}
 	verifyEventStateOrder(t, event, states, "event channel")
@@ -117,7 +126,10 @@ func TestCreateDelete(t *testing.T) {
 func TestRegisterTemp(t *testing.T) {
 	ts, z, event, err := NewMockZookeeperClient("test", 15*time.Second)
 	assert.NoError(t, err)
-	defer ts.Stop()
+	defer func() {
+		_ = ts.Stop()
+		assert.Nil(t, err)
+	}()
 	err = z.Create("/test1/test2/test3")
 	assert.NoError(t, err)
 
@@ -131,7 +143,10 @@ func TestRegisterTemp(t *testing.T) {
 func TestRegisterTempSeq(t *testing.T) {
 	ts, z, event, err := NewMockZookeeperClient("test", 15*time.Second)
 	assert.NoError(t, err)
-	defer ts.Stop()
+	defer func() {
+		_ = ts.Stop()
+		assert.Nil(t, err)
+	}()
 	err = z.Create("/test1/test2/test3")
 	assert.NoError(t, err)
 	tmpath, err := z.RegisterTempSeq("/test1/test2/test3", []byte("test"))
diff --git a/remoting/zookeeper/facade.go b/remoting/zookeeper/facade.go
index 4dc0a549f2ae53edcc7a645de4dfffc8b9da00a0..3440d832e03c5cd218db4727293e927ebcc3c6e5 100644
--- a/remoting/zookeeper/facade.go
+++ b/remoting/zookeeper/facade.go
@@ -82,6 +82,7 @@ LOOP:
 					break
 				}
 				failTimes++
+				logger.Warnf("ZK reconnect failed %d times", failTimes)
 				if MaxFailTimes <= failTimes {
 					failTimes = MaxFailTimes
 				}
diff --git a/remoting/zookeeper/facade_test.go b/remoting/zookeeper/facade_test.go
index 3d5798c947fb0fb33adce708e1bcdb8fb24e530f..4a76a80ef13edf9c38c2f54bbdca0b8c8203530f 100644
--- a/remoting/zookeeper/facade_test.go
+++ b/remoting/zookeeper/facade_test.go
@@ -88,7 +88,11 @@ func (r *mockFacade) IsAvailable() bool {
 func Test_Facade(t *testing.T) {
 	ts, z, event, err := NewMockZookeeperClient("test", 15*time.Second)
 	assert.NoError(t, err)
-	defer ts.Stop()
+	defer func() {
+		if err := ts.Stop(); err != nil {
+			t.Errorf("tc.Stop() = error: %v", err)
+		}
+	}()
 	url, _ := common.NewURL("mock://127.0.0.1")
 	mock := newMockFacade(z, url)
 	go HandleClientRestart(mock)
diff --git a/remoting/zookeeper/listener.go b/remoting/zookeeper/listener.go
index e5ddcadeaca9c3ce972cbe781413ebec7393afce..f1ac954dc0b0a218222499c152000c404e16bbf5 100644
--- a/remoting/zookeeper/listener.go
+++ b/remoting/zookeeper/listener.go
@@ -69,8 +69,11 @@ func (l *ZkEventListener) ListenServiceNodeEvent(zkPath string, listener remotin
 	go func(zkPath string, listener remoting.DataListener) {
 		if l.listenServiceNodeEvent(zkPath, listener) {
 			listener.DataChange(remoting.Event{Path: zkPath, Action: remoting.EventTypeDel})
+			l.pathMapLock.Lock()
+			delete(l.pathMap, zkPath)
+			l.pathMapLock.Unlock()
 		}
-		logger.Warnf("listenSelf(zk path{%s}) goroutine exit now", zkPath)
+		logger.Warnf("ListenServiceNodeEvent->listenSelf(zk path{%s}) goroutine exit now", zkPath)
 	}(zkPath, listener)
 }
 
@@ -87,7 +90,7 @@ func (l *ZkEventListener) listenServiceNodeEvent(zkPath string, listener ...remo
 
 		select {
 		case zkEvent = <-keyEventCh:
-			logger.Warnf("get a zookeeper zkEvent{type:%s, server:%s, path:%s, state:%d-%s, err:%s}",
+			logger.Warnf("get a zookeeper keyEventCh{type:%s, server:%s, path:%s, state:%d-%s, err:%s}",
 				zkEvent.Type.String(), zkEvent.Server, zkEvent.Path, zkEvent.State, StateToString(zkEvent.State), zkEvent.Err)
 			switch zkEvent.Type {
 			case zk.EventNodeDataChanged:
@@ -135,9 +138,10 @@ func (l *ZkEventListener) handleZkNodeEvent(zkPath string, children []string, li
 	newChildren, err := l.client.GetChildren(zkPath)
 	if err != nil {
 		if err == errNilChildren {
-			content, _, err := l.client.Conn.Get(zkPath)
-			if err != nil {
-				logger.Errorf("Get new node path {%v} 's content error,message is  {%v}", zkPath, perrors.WithStack(err))
+			content, _, connErr := l.client.Conn.Get(zkPath)
+			if connErr != nil {
+				logger.Errorf("Get new node path {%v} 's content error,message is  {%v}",
+					zkPath, perrors.WithStack(connErr))
 			} else {
 				listener.DataChange(remoting.Event{Path: zkPath, Action: remoting.EventTypeUpdate, Content: string(content)})
 			}
@@ -145,6 +149,7 @@ func (l *ZkEventListener) handleZkNodeEvent(zkPath string, children []string, li
 		} else {
 			logger.Errorf("path{%s} child nodes changed, zk.Children() = error{%v}", zkPath, perrors.WithStack(err))
 		}
+		return
 	}
 
 	// a node was added -- listen the new node
@@ -158,24 +163,27 @@ func (l *ZkEventListener) handleZkNodeEvent(zkPath string, children []string, li
 
 		newNode = path.Join(zkPath, n)
 		logger.Infof("add zkNode{%s}", newNode)
-		content, _, err := l.client.Conn.Get(newNode)
-		if err != nil {
-			logger.Errorf("Get new node path {%v} 's content error,message is  {%v}", newNode, perrors.WithStack(err))
+		content, _, connErr := l.client.Conn.Get(newNode)
+		if connErr != nil {
+			logger.Errorf("Get new node path {%v} 's content error,message is  {%v}",
+				newNode, perrors.WithStack(connErr))
 		}
 
-		if !listener.DataChange(remoting.Event{Path: zkPath, Action: remoting.EventTypeAdd, Content: string(content)}) {
+		if !listener.DataChange(remoting.Event{Path: newNode, Action: remoting.EventTypeAdd, Content: string(content)}) {
 			continue
 		}
 		// listen l service node
 		l.wg.Add(1)
-		go func(node string, zkPath string, listener remoting.DataListener) {
-			logger.Infof("delete zkNode{%s}", node)
+		go func(node string, listener remoting.DataListener) {
 			if l.listenServiceNodeEvent(node, listener) {
-				logger.Infof("delete content{%s}", node)
-				listener.DataChange(remoting.Event{Path: zkPath, Action: remoting.EventTypeDel})
+				logger.Warnf("delete zkNode{%s}", node)
+				listener.DataChange(remoting.Event{Path: node, Action: remoting.EventTypeDel})
+				l.pathMapLock.Lock()
+				delete(l.pathMap, zkPath)
+				l.pathMapLock.Unlock()
 			}
-			logger.Warnf("listenSelf(zk path{%s}) goroutine exit now", zkPath)
-		}(newNode, zkPath, listener)
+			logger.Warnf("handleZkNodeEvent->listenSelf(zk path{%s}) goroutine exit now", node)
+		}(newNode, listener)
 	}
 
 	// old node was deleted
@@ -186,12 +194,7 @@ func (l *ZkEventListener) handleZkNodeEvent(zkPath string, children []string, li
 		}
 
 		oldNode = path.Join(zkPath, n)
-		logger.Warnf("delete zkPath{%s}", oldNode)
-
-		if err != nil {
-			logger.Errorf("NewURL(i{%s}) = error{%v}", n, perrors.WithStack(err))
-			continue
-		}
+		logger.Warnf("delete oldNode{%s}", oldNode)
 		listener.DataChange(remoting.Event{Path: oldNode, Action: remoting.EventTypeDel})
 	}
 }
@@ -302,10 +305,10 @@ func (l *ZkEventListener) listenDirEvent(conf *common.URL, zkPath string, listen
 				if l.listenServiceNodeEvent(zkPath) {
 					listener.DataChange(remoting.Event{Path: zkPath, Action: remoting.EventTypeDel})
 					l.pathMapLock.Lock()
-					defer l.pathMapLock.Unlock()
 					delete(l.pathMap, zkPath)
+					l.pathMapLock.Unlock()
 				}
-				logger.Warnf("listenSelf(zk path{%s}) goroutine exit now", zkPath)
+				logger.Warnf("listenDirEvent->listenSelf(zk path{%s}) goroutine exit now", zkPath)
 			}(dubboPath, listener)
 
 			// listen sub path recursive
@@ -327,7 +330,7 @@ func (l *ZkEventListener) listenDirEvent(conf *common.URL, zkPath string, listen
 			case <-ticker.C:
 				l.handleZkNodeEvent(zkPath, children, listener)
 			case zkEvent = <-childEventCh:
-				logger.Warnf("get a zookeeper zkEvent{type:%s, server:%s, path:%s, state:%d-%s, err:%s}",
+				logger.Warnf("get a zookeeper childEventCh{type:%s, server:%s, path:%s, state:%d-%s, err:%s}",
 					zkEvent.Type.String(), zkEvent.Server, zkEvent.Path, zkEvent.State, StateToString(zkEvent.State), zkEvent.Err)
 				ticker.Stop()
 				if zkEvent.Type != zk.EventNodeChildrenChanged {
@@ -336,7 +339,7 @@ func (l *ZkEventListener) listenDirEvent(conf *common.URL, zkPath string, listen
 				l.handleZkNodeEvent(zkEvent.Path, children, listener)
 				break WATCH
 			case <-l.client.Done():
-				logger.Warnf("client.done(), listen(path{%s}) goroutine exit now...", zkPath)
+				logger.Warnf("watch client.done(), listen(path{%s}) goroutine exit now...", zkPath)
 				ticker.Stop()
 				return
 			}
@@ -358,13 +361,13 @@ func (l *ZkEventListener) ListenServiceEvent(conf *common.URL, zkPath string, li
 	l.wg.Add(1)
 	go func(zkPath string, listener remoting.DataListener) {
 		l.listenDirEvent(conf, zkPath, listener)
-		logger.Warnf("listenDirEvent(zkPath{%s}) goroutine exit now", zkPath)
+		logger.Warnf("ListenServiceEvent->listenDirEvent(zkPath{%s}) goroutine exit now", zkPath)
 	}(zkPath, listener)
 }
 
-func (l *ZkEventListener) valid() bool {
-	return l.client.ZkConnValid()
-}
+//func (l *ZkEventListener) valid() bool {
+//	return l.client.ZkConnValid()
+//}
 
 // Close will let client listen exit
 func (l *ZkEventListener) Close() {
diff --git a/remoting/zookeeper/listener_test.go b/remoting/zookeeper/listener_test.go
index 37ef1b4b967d2f6708a4a099875ae90f273ae483..896bdc60702d17520c62cd0621b00da795c90e6d 100644
--- a/remoting/zookeeper/listener_test.go
+++ b/remoting/zookeeper/listener_test.go
@@ -95,7 +95,11 @@ func TestListener(t *testing.T) {
 `
 	var wait sync.WaitGroup
 	ts, client, event := initZkData(t)
-	defer ts.Stop()
+	defer func() {
+		if err := ts.Stop(); err != nil {
+			t.Errorf("ts.Stop() = error: %v", err)
+		}
+	}()
 	client.Wait.Add(1)
 	wait.Add(1)
 	go client.HandleZkEvent(event)
diff --git a/test/integrate/dubbo/go-client/Dockerfile b/test/integrate/dubbo/go-client/Dockerfile
index d48df36dc72d7e75f8c2c8c91d5acbb01e39757d..0d52d54062895390b33f46149b0d7f5e25ee1bad 100644
--- a/test/integrate/dubbo/go-client/Dockerfile
+++ b/test/integrate/dubbo/go-client/Dockerfile
@@ -31,6 +31,8 @@ ADD . /go/src/github.com/apache/dubbo-go/test/integrate/dubbo/go-client
 RUN test ${PR_ORIGIN_REPO} && echo "github.com/apache/dubbo-go will be replace to github.com/${PR_ORIGIN_REPO}@${PR_ORIGIN_COMMITID}" || echo 'go get github.com/apache/dubbo-go@develop'
 RUN test ${PR_ORIGIN_REPO} && go mod edit  -replace=github.com/apache/dubbo-go=github.com/${PR_ORIGIN_REPO}@${PR_ORIGIN_COMMITID} || go get -u github.com/apache/dubbo-go@develop
 
+ENV GO111MODULE on
+
 RUN go install github.com/apache/dubbo-go/test/integrate/dubbo/go-client
 
 CMD go-client
\ No newline at end of file
diff --git a/test/integrate/dubbo/go-client/go.mod b/test/integrate/dubbo/go-client/go.mod
index 162f32ba9b7a217e7ae8bcfea5aa5b91d76b383c..458ddff6ef9c811ede9282d4e7cd9d436d0a7198 100644
--- a/test/integrate/dubbo/go-client/go.mod
+++ b/test/integrate/dubbo/go-client/go.mod
@@ -1,5 +1,8 @@
 module github.com/apache/dubbo-go/test/integrate/dubbo/go-client
 
-require github.com/apache/dubbo-go-hessian2 v1.7.0
+require (
+	github.com/apache/dubbo-go v1.5.6-rc1.0.20210220143153-9c8fc77f0381
+	github.com/apache/dubbo-go-hessian2 v1.8.2
+)
 
 go 1.13
diff --git a/test/integrate/dubbo/go-client/go.sum b/test/integrate/dubbo/go-client/go.sum
index fc378395782f0f7e8032cdaed2ec4c4b0266c149..89a27a9629cfc31cbb290787b76c27bddc29f3cf 100644
--- a/test/integrate/dubbo/go-client/go.sum
+++ b/test/integrate/dubbo/go-client/go.sum
@@ -1,11 +1,928 @@
-github.com/apache/dubbo-go-hessian2 v1.6.0-rc1.0.20200906044240-6c1fb5c3bd44/go.mod h1:7rEw9guWABQa6Aqb8HeZcsYPHsOS7XT1qtJvkmI6c5w=
-github.com/apache/dubbo-go-hessian2 v1.7.0/go.mod h1:7rEw9guWABQa6Aqb8HeZcsYPHsOS7XT1qtJvkmI6c5w=
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
+cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
+cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
+cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
+cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
+cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
+cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
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diff --git a/test/integrate/dubbo/go-server/Dockerfile b/test/integrate/dubbo/go-server/Dockerfile
index c2f2d63462d94df7624ac100023e8b8c24e23e11..68081d1c76e3a1b67f067091761cef7cebbc6568 100644
--- a/test/integrate/dubbo/go-server/Dockerfile
+++ b/test/integrate/dubbo/go-server/Dockerfile
@@ -30,6 +30,8 @@ ADD . /go/src/github.com/apache/dubbo-go/test/integrate/dubbo/go-server
 RUN test ${PR_ORIGIN_REPO} && echo "github.com/apache/dubbo-go will be replace to github.com/${PR_ORIGIN_REPO}@${PR_ORIGIN_COMMITID}" || echo 'go get github.com/apache/dubbo-go@develop'
 RUN test ${PR_ORIGIN_REPO} && go mod edit  -replace=github.com/apache/dubbo-go=github.com/${PR_ORIGIN_REPO}@${PR_ORIGIN_COMMITID} || go get -u github.com/apache/dubbo-go@develop
 
+ENV GO111MODULE on
+
 RUN go install github.com/apache/dubbo-go/test/integrate/dubbo/go-server
 
 CMD go-server
diff --git a/test/integrate/dubbo/go-server/go.mod b/test/integrate/dubbo/go-server/go.mod
index f9d950e0d1b9b7e56922120772c98699f7b3acc9..41cc6b041e5784c2e4aadbc6c7a1a6c7fc660372 100644
--- a/test/integrate/dubbo/go-server/go.mod
+++ b/test/integrate/dubbo/go-server/go.mod
@@ -1,5 +1,8 @@
 module github.com/apache/dubbo-go/test/integrate/dubbo/go-server
 
-require github.com/apache/dubbo-go-hessian2 v1.7.0
+require (
+	github.com/apache/dubbo-go v1.5.6-rc1.0.20210220143153-9c8fc77f0381
+	github.com/apache/dubbo-go-hessian2 v1.8.2
+)
 
 go 1.13
diff --git a/test/integrate/dubbo/go-server/go.sum b/test/integrate/dubbo/go-server/go.sum
index fc378395782f0f7e8032cdaed2ec4c4b0266c149..89a27a9629cfc31cbb290787b76c27bddc29f3cf 100644
--- a/test/integrate/dubbo/go-server/go.sum
+++ b/test/integrate/dubbo/go-server/go.sum
@@ -1,11 +1,928 @@
-github.com/apache/dubbo-go-hessian2 v1.6.0-rc1.0.20200906044240-6c1fb5c3bd44/go.mod h1:7rEw9guWABQa6Aqb8HeZcsYPHsOS7XT1qtJvkmI6c5w=
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+cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
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+istio.io/gogo-genproto v0.0.0-20190124151557-6d926a6e6feb/go.mod h1:eIDJ6jNk/IeJz6ODSksHl5Aiczy5JUq6vFhJWI5OtiI=
+k8s.io/api v0.16.9/go.mod h1:Y7dZNHs1Xy0mSwSlzL9QShi6qkljnN41yR8oWCRTDe8=
+k8s.io/apimachinery v0.16.9/go.mod h1:Xk2vD2TRRpuWYLQNM6lT9R7DSFZUYG03SarNkbGrnKE=
+k8s.io/client-go v0.16.9/go.mod h1:ThjPlh7Kx+XoBFOCt775vx5J7atwY7F/zaFzTco5gL0=
+k8s.io/gengo v0.0.0-20190128074634-0689ccc1d7d6/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
+k8s.io/klog v0.0.0-20181102134211-b9b56d5dfc92/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
+k8s.io/klog v0.3.0/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
+k8s.io/klog v1.0.0/go.mod h1:4Bi6QPql/J/LkTDqv7R/cd3hPo4k2DG6Ptcz060Ez5I=
+k8s.io/kube-openapi v0.0.0-20190816220812-743ec37842bf/go.mod h1:1TqjTSzOxsLGIKfj0lK8EeCP7K1iUG65v09OM0/WG5E=
+k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a/go.mod h1:1TqjTSzOxsLGIKfj0lK8EeCP7K1iUG65v09OM0/WG5E=
+k8s.io/utils v0.0.0-20190801114015-581e00157fb1/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=
+launchpad.net/gocheck v0.0.0-20140225173054-000000000087/go.mod h1:hj7XX3B/0A+80Vse0e+BUHsHMTEhd0O4cpUHr/e/BUM=
+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
+sigs.k8s.io/structured-merge-diff v0.0.0-20190525122527-15d366b2352e/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
+sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
+sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=
diff --git a/tools/cli/.gitignore b/tools/cli/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..f38566b9981443d6b15bcd34c515e9331d3401d4
--- /dev/null
+++ b/tools/cli/.gitignore
@@ -0,0 +1,5 @@
+.idea/
+
+# Binary
+example/dubbo-go-cli
+
diff --git a/tools/cli/README.md b/tools/cli/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..6bd1a7e0bb22920a53a583d7d0fa54613d3b98d0
--- /dev/null
+++ b/tools/cli/README.md
@@ -0,0 +1,14 @@
+# dubbo-go-cli
+
+### 1. Problem we solved.
+
+For the running dubbo-go server, we need a telnet-cli tool to test if the server works healthily.
+The tool should support dubbo protocol, making it easy for you to define your own request pkg, get rsp struct of your server, and total costing time. 
+
+
+### 2. How to get cli-tool
+run in dubbo-go/tools/cli \
+`$ sh build.sh`\
+and you can get dubbo-go-cli 
+
+### 3. Quick start锛歔example](example/README.md)
\ No newline at end of file
diff --git a/tools/cli/README_CN.md b/tools/cli/README_CN.md
new file mode 100644
index 0000000000000000000000000000000000000000..dfae26e85ffbec4dc8786bf7949e8b5d675aa4c4
--- /dev/null
+++ b/tools/cli/README_CN.md
@@ -0,0 +1,11 @@
+# dubbo-go-cli
+
+### 1. 瑙e喅闂
+
+閽堝姝e湪杩愯鐨刣ubbo鏈嶅姟锛岄渶瑕佹嫢鏈変竴涓懡浠よ宸ュ叿鏉ラ拡瀵规湇鍔¤繘琛屾祴璇曘€�
+璇ユ湇鍔¢渶瑕佹敮鎸乨ubbo鍗忚锛屾柟渚跨敤鎴疯繘琛岃嚜瀹氫箟浼犺緭鍖呬綋銆�
+
+### 2. cli宸ュ叿鑾峰彇鏂规硶
+`sh build.sh`
+
+### 3. 浣跨敤鏂规硶锛氳[example](example/README_CN.md)
\ No newline at end of file
diff --git a/tools/cli/build.sh b/tools/cli/build.sh
new file mode 100644
index 0000000000000000000000000000000000000000..f4a6e71da8ad3854648b2c0d3a58ae2c9040baaf
--- /dev/null
+++ b/tools/cli/build.sh
@@ -0,0 +1,2 @@
+export GOPROXY="http://goproxy.io"
+go build -o dubbo-go-cli
\ No newline at end of file
diff --git a/tools/cli/client/client.go b/tools/cli/client/client.go
new file mode 100644
index 0000000000000000000000000000000000000000..fd15939bba4ffd7e7bafbe374ed1a36ad588f1fa
--- /dev/null
+++ b/tools/cli/client/client.go
@@ -0,0 +1,197 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package client
+
+import (
+	"log"
+	"net"
+	"strconv"
+	"sync"
+	"time"
+)
+
+import (
+	"go.uber.org/atomic"
+)
+
+import (
+	"github.com/apache/dubbo-go/tools/cli/common"
+	"github.com/apache/dubbo-go/tools/cli/protocol"
+	_ "github.com/apache/dubbo-go/tools/cli/protocol/dubbo"
+)
+
+// defaultBufferSize is the tcp read default buffer size
+const defaultBufferSize = 1024 * 1024 * 4
+
+// TelnetClient maintain a connection to target
+type TelnetClient struct {
+	tcpAddr         string
+	responseTimeout time.Duration
+	protocolName    string
+	requestList     []*protocol.Request
+	conn            *net.TCPConn
+	proto           protocol.Protocol
+
+	sequence         atomic.Uint64
+	pendingResponses *sync.Map
+	waitNum          atomic.Uint64
+}
+
+// NewTelnetClient create a new tcp connection, and create default request
+func NewTelnetClient(host string, port int, protocolName, interfaceID, version, group, method string, reqPkg interface{}, timeout int) (*TelnetClient, error) {
+	tcpAddr := net.JoinHostPort(host, strconv.Itoa(port))
+	resolved := resolveTCPAddr(tcpAddr)
+	conn, err := net.DialTCP("tcp", nil, resolved)
+	if err != nil {
+		return nil, err
+	}
+	log.Printf("connected to %s:%d\n", host, port)
+	log.Printf("try calling interface:%s.%s\n", interfaceID, method)
+	log.Printf("with protocol:%s\n\n", protocolName)
+	proto := common.GetProtocol(protocolName)
+
+	return &TelnetClient{
+		tcpAddr:          tcpAddr,
+		conn:             conn,
+		responseTimeout:  time.Duration(timeout) * time.Millisecond, //default timeout
+		protocolName:     protocolName,
+		pendingResponses: &sync.Map{},
+		proto:            proto,
+		requestList: []*protocol.Request{
+			{
+				InterfaceID: interfaceID,
+				Version:     version,
+				Method:      method,
+				Group:       group,
+				Params:      []interface{}{reqPkg},
+			},
+		},
+	}, nil
+}
+
+func resolveTCPAddr(addr string) *net.TCPAddr {
+	resolved, error := net.ResolveTCPAddr("tcp", addr)
+	if nil != error {
+		log.Fatalf("Error occured while resolving TCP address \"%v\": %v\n", addr, error)
+	}
+
+	return resolved
+}
+
+// ProcessRequests send all requests
+func (t *TelnetClient) ProcessRequests(userPkg interface{}) {
+	for i, _ := range t.requestList {
+		t.processSingleRequest(t.requestList[i], userPkg)
+	}
+}
+
+// addPendingResponse add a response @model to pending queue
+// once the rsp got, the model will be used.
+func (t *TelnetClient) addPendingResponse(model interface{}) uint64 {
+	seqId := t.sequence.Load()
+	t.pendingResponses.Store(seqId, model)
+	t.waitNum.Inc()
+	t.sequence.Inc()
+	return seqId
+}
+
+// removePendingResponse delete item from pending queue by @seq
+func (t *TelnetClient) removePendingResponse(seq uint64) {
+	if t.pendingResponses == nil {
+		return
+	}
+	if _, ok := t.pendingResponses.Load(seq); ok {
+		t.pendingResponses.Delete(seq)
+		t.waitNum.Dec()
+	}
+	return
+}
+
+// processSingleRequest call one req.
+func (t *TelnetClient) processSingleRequest(req *protocol.Request, userPkg interface{}) {
+	// proto create package procedure
+	req.ID = t.sequence.Load()
+	inputData, err := t.proto.Write(req)
+	if err != nil {
+		log.Fatalln("error: handler.Writer err = ", err)
+	}
+	startTime := time.Now()
+
+	// init rsp Package and add to pending queue
+	seqId := t.addPendingResponse(userPkg)
+	defer t.removePendingResponse(seqId)
+
+	requestDataChannel := make(chan []byte, 0)
+	responseDataChannel := make(chan []byte, 0)
+
+	// start data transfer procedure
+	go t.readInputData(string(inputData), requestDataChannel)
+	go t.readServerData(t.conn, responseDataChannel)
+
+	timeAfter := time.After(t.responseTimeout)
+
+	for {
+		select {
+		case <-timeAfter:
+			log.Println("request timeout to:", t.tcpAddr)
+			return
+		case request := <-requestDataChannel:
+			if _, err := t.conn.Write(request); nil != err {
+				log.Fatalf("Error occured while writing to TCP socket: %v\n", err)
+			}
+		case response := <-responseDataChannel:
+			rspPkg, _, err := t.proto.Read(response, t.pendingResponses)
+			if err != nil {
+				log.Fatalln("Error with protocol Read(): ", err)
+			}
+			t.removePendingResponse(seqId)
+			log.Printf("After %dms , Got Rsp:", time.Now().Sub(startTime).Milliseconds())
+			common.PrintInterface(rspPkg)
+			if t.waitNum.Sub(0) == 0 {
+				return
+			}
+		}
+	}
+}
+
+func (t *TelnetClient) readInputData(inputData string, toSent chan<- []byte) {
+	toSent <- []byte(inputData)
+}
+
+func (t *TelnetClient) readServerData(connection *net.TCPConn, received chan<- []byte) {
+	buffer := make([]byte, defaultBufferSize)
+	var err error
+	var n int
+	for nil == err {
+		n, err = connection.Read(buffer)
+		received <- buffer[:n]
+	}
+
+	t.assertEOF(err)
+}
+
+func (t *TelnetClient) assertEOF(error error) {
+	if "EOF" != error.Error() {
+		log.Fatalf("Error occured while operating on TCP socket: %v\n", error)
+	}
+}
+
+// Destroy close the tcp conn
+func (t *TelnetClient) Destroy() {
+	t.conn.Close()
+}
diff --git a/tools/cli/common/protocol.go b/tools/cli/common/protocol.go
new file mode 100644
index 0000000000000000000000000000000000000000..dd2454a1c7edde0911b69c0e4c581c5bd64f2297
--- /dev/null
+++ b/tools/cli/common/protocol.go
@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package common
+
+import (
+	"github.com/apache/dubbo-go/tools/cli/protocol"
+)
+
+var (
+	protocols = make(map[string]func() protocol.Protocol, 8)
+)
+
+// SetProtocol sets the protocol extension with @name
+func SetProtocol(name string, v func() protocol.Protocol) {
+	protocols[name] = v
+}
+
+// GetProtocol finds the protocol extension with @name
+func GetProtocol(name string) protocol.Protocol {
+	if protocols[name] == nil {
+		panic("protocol for " + name + " is not existing, make sure you have import the package.")
+	}
+	return protocols[name]()
+}
diff --git a/tools/cli/common/tool.go b/tools/cli/common/tool.go
new file mode 100644
index 0000000000000000000000000000000000000000..122948c4b6f6e3e705d6404f746badd412566217
--- /dev/null
+++ b/tools/cli/common/tool.go
@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package common
+
+import (
+	"fmt"
+	"log"
+	"reflect"
+)
+
+// PrintInterface print the interface by level
+func PrintInterface(v interface{}) {
+	val := reflect.ValueOf(v).Elem()
+	typ := reflect.TypeOf(v)
+	log.Printf("%+v\n", v)
+	nums := val.NumField()
+	for i := 0; i < nums; i++ {
+		if typ.Elem().Field(i).Type.Kind() == reflect.Ptr {
+			log.Printf("%s: ", typ.Elem().Field(i).Name)
+			PrintInterface(val.Field(i).Interface())
+		}
+	}
+	fmt.Println("")
+}
diff --git a/tools/cli/example/README.md b/tools/cli/example/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..bfc37e8f58cf4dbd6f141da0e0bbc11d27126566
--- /dev/null
+++ b/tools/cli/example/README.md
@@ -0,0 +1,136 @@
+# dubbo-go-cli example
+
+### 1. Start dubbo-go server
+before we use dubbo-go-cli to send a request, we start a dubbo-go server firstly.
+
+example in file: server/main.go server/user.go
+
+example锛歶ser.go:
+```go
+func (u *UserProvider) GetUser(ctx context.Context, userStruct *CallUserStruct) (*User, error) {
+	fmt.Printf("=======================\nreq:%#v\n", userStruct)
+	rsp := User{"A002", "Alex Stocks", 18, userStruct.SubInfo}
+	fmt.Printf("=======================\nrsp:%#v\n", rsp)
+	return &rsp, nil
+}
+
+```
+as example shows above, server start a function named GetUser, which has a param @CallUserStruct and return User struct.
+
+param @CallUserStruct defination:
+```go
+type CallUserStruct struct {
+	ID      string
+	Male    bool
+	SubInfo SubInfo // nesting sub struct
+}
+func (cs CallUserStruct) JavaClassName() string {
+	return "com.ikurento.user.CallUserStruct"
+}
+
+type SubInfo struct {
+	SubID   string
+	SubMale bool
+	SubAge  int
+}
+
+func (s SubInfo) JavaClassName() string {
+	return "com.ikurento.user.SubInfo"
+}
+
+```
+User struct defination锛�
+```go
+type User struct {
+	Id      string
+	Name    string
+	Age     int32
+	SubInfo SubInfo // nesting sub struct, the same as above
+}
+
+func (u *User) JavaClassName() string {
+	return "com.ikurento.user.User"
+}
+```
+
+start dubbo-go server:
+
+`$ cd server `\
+`$ source builddev.sh`\
+`$ go run .`
+
+### 2. Define your request structs (encode and decode protocol)
+You should define your request structs in json format. we appoint that key and val in json file must be string.\
+Key in json file defines your go struct's field name, such as "ID","Name".\
+Value in json file defines your go struct's field type and value, in format of "type@value". We support 'type' of 'string,int,bool,time', and use value to init the field, if value is empty, we init it by zero.
+We appoint that each json struct must have key 'JavaClassName', and the value of it must corresponding to server end.  
+
+example int userCall.json:
+```json
+{
+  "ID": "string@A000",
+  "Male": "bool@true",
+  "SubInfo": {
+    "SubID": "string@A001",
+    "SubMale": "bool@false",
+    "SubAge": "int@18",
+    "JavaClassName":"string@com.ikurento.user.SubInfo"
+  },
+  "JavaClassName": "string@com.ikurento.user.CallUserStruct"
+}
+```
+'userCall.json' defines param @CallUserStruct and it's substruct 'SubInfo', meanwhile it inits all fields.
+
+
+'user.json' Similarly defines all field, but you are not need to set inital value for them. Remember that 'JavaClassName' field must corresponding to server end.
+```go
+{
+  "ID": "string",
+  "Name": "string",
+  "Age": "int",
+  "JavaClassName":  "string@com.ikurento.user.User",
+  "SubInfo": {
+    "SubID": "string",
+    "SubMale": "bool",
+    "SubAge": "int",
+    "JavaClassName":"string@com.ikurento.user.SubInfo"
+  }
+}
+```
+
+### 3. Exec cli to send req.
+`./dubbo-go-cli -h=localhost -p=20001 -proto=dubbo -i=com.ikurento.user.UserProvider -method=GetUser -sendObj="./userCall.json" -recvObj="./user.json"`
+
+cli-end output锛�
+```log
+2020/10/26 20:47:45 Created pkg:
+2020/10/26 20:47:45 &{ID:A000 Male:true SubInfo:0xc00006ea20 JavaClassName:com.ikurento.user.CallUserStruct}
+2020/10/26 20:47:45 SubInfo:
+2020/10/26 20:47:45 &{SubID:A001 SubMale:false SubAge:18 JavaClassName:com.ikurento.user.SubInfo}
+
+
+2020/10/26 20:47:45 Created pkg:
+2020/10/26 20:47:45 &{ID: Name: Age:0 JavaClassName:com.ikurento.user.User SubInfo:0xc00006ec90}
+2020/10/26 20:47:45 SubInfo:
+2020/10/26 20:47:45 &{SubID: SubMale:false SubAge:0 JavaClassName:com.ikurento.user.SubInfo}
+
+
+2020/10/26 20:47:45 connected to localhost:20001!
+2020/10/26 20:47:45 try calling interface:com.ikurento.user.UserProvider.GetUser
+2020/10/26 20:47:45 with protocol:dubbo
+
+2020/10/26 20:47:45 After 3ms , Got Rsp:
+2020/10/26 20:47:45 &{ID:A002 Name:Alex Stocks Age:18 JavaClassName: SubInfo:0xc0001241b0}
+2020/10/26 20:47:45 SubInfo:
+2020/10/26 20:47:45 &{SubID:A001 SubMale:false SubAge:18 JavaClassName:}```
+```
+By reading logs above, you can get req struct, cost time and rsp struct in details.\
+The nesting sub struct is supported.
+
+server-end output:
+```
+=======================
+req:&main.CallUserStruct{ID:"A000", Male:true, SubInfo:main.SubInfo{SubID:"A001", SubMale:false, SubAge:18}}
+=======================
+```
+It's showed that server-end got specific request.
\ No newline at end of file
diff --git a/tools/cli/example/README_CN.md b/tools/cli/example/README_CN.md
new file mode 100644
index 0000000000000000000000000000000000000000..fd2135b5a70a8575f52720bbd5ac0e06f83bdef5
--- /dev/null
+++ b/tools/cli/example/README_CN.md
@@ -0,0 +1,132 @@
+# dubbo-go-cli 浣跨敤绀轰緥
+
+### 1. 寮€鍚湇鍔$
+瑙� server/main.go server/user.go
+
+绀轰緥锛歶ser.go:
+```go
+func (u *UserProvider) GetUser(ctx context.Context, userStruct *CallUserStruct) (*User, error) {
+	fmt.Printf("=======================\nreq:%#v\n", userStruct)
+	rsp := User{"A002", "Alex Stocks", 18, userStruct.SubInfo}
+	fmt.Printf("=======================\nrsp:%#v\n", rsp)
+	return &rsp, nil
+}
+
+```
+鏈嶅姟绔紑鍚竴涓湇鍔★紝鍚嶄负GetUser锛屼紶鍏ヤ竴涓狢allUserStruct鐨勫弬鏁帮紝杩斿洖涓€涓猆ser鍙傛暟\
+CallUserStruct鍙傛暟瀹氫箟锛�
+```go
+type CallUserStruct struct {
+	ID      string
+	Male    bool
+	SubInfo SubInfo // 宓屽瀛愮粨鏋�
+}
+func (cs CallUserStruct) JavaClassName() string {
+	return "com.ikurento.user.CallUserStruct"
+}
+
+type SubInfo struct {
+	SubID   string
+	SubMale bool
+	SubAge  int
+}
+
+func (s SubInfo) JavaClassName() string {
+	return "com.ikurento.user.SubInfo"
+}
+
+```
+User缁撴瀯瀹氫箟锛�
+```go
+type User struct {
+	Id      string
+	Name    string
+	Age     int32
+	SubInfo SubInfo // 宓屽涓婅堪瀛愮粨鏋凷ubInfo
+}
+
+func (u *User) JavaClassName() string {
+	return "com.ikurento.user.User"
+}
+```
+
+寮€鍚湇鍔★細
+
+`cd server `\
+`source builddev.sh`\
+`go run .`
+
+### 2. 瀹氫箟璇锋眰浣�(鎵撹В鍖呭崗璁�)
+
+璇锋眰浣撳畾涔変负json鏂囦欢锛岀害瀹氶敭鍊煎潎涓簊tring\
+閿搴攇o璇█struct瀛楁鍚嶄緥濡�"ID"銆�"Name" 锛屽€煎搴�"type@val"\
+鍏朵腑type鏀寔string int bool time锛寁al浣跨敤string 鏉ュ垵濮嬪寲锛屽鏋滃彧濉啓type鍒欏垵濮嬪寲涓洪浂鍊笺€�
+绾﹀畾姣忎釜struct蹇呴』鏈塉avaClassName瀛楁锛屽姟蹇呬笌server绔弗鏍煎搴�
+
+瑙乽serCall.json:
+```json
+{
+  "ID": "string@A000",
+  "Male": "bool@true",
+  "SubInfo": {
+    "SubID": "string@A001",
+    "SubMale": "bool@false",
+    "SubAge": "int@18",
+    "JavaClassName":"string@com.ikurento.user.SubInfo"
+  },
+  "JavaClassName": "string@com.ikurento.user.CallUserStruct"
+}
+```
+userCall.json灏嗗弬鏁癈allUserStruct鐨勭粨鏋勫強瀛愮粨鏋凷ubInfo閮藉畾涔変簡鍑烘潵锛屽苟涓旂粰璇锋眰鍙傛暟璧嬪€笺€�
+
+user.json 鍚岀悊锛屼綔涓鸿繑鍥炲€间笉闇€瑕佽祴鍒濆鍊硷紝浣咼avaClassName瀛楁涓€瀹氫笌server绔弗鏍煎搴�
+```go
+{
+  "ID": "string",
+  "Name": "string",
+  "Age": "int",
+  "JavaClassName":  "string@com.ikurento.user.User",
+  "SubInfo": {
+    "SubID": "string",
+    "SubMale": "bool",
+    "SubAge": "int",
+    "JavaClassName":"string@com.ikurento.user.SubInfo"
+  }
+}
+```
+
+### 3. 鎵ц璇锋眰
+`./dubbo-go-cli -h=localhost -p=20001 -proto=dubbo -i=com.ikurento.user.UserProvider -method=GetUser -sendObj="./userCall.json" -recvObj="./user.json"`
+
+cli绔墦鍗扮粨鏋滐細
+```log
+2020/10/26 20:47:45 Created pkg:
+2020/10/26 20:47:45 &{ID:A000 Male:true SubInfo:0xc00006ea20 JavaClassName:com.ikurento.user.CallUserStruct}
+2020/10/26 20:47:45 SubInfo:
+2020/10/26 20:47:45 &{SubID:A001 SubMale:false SubAge:18 JavaClassName:com.ikurento.user.SubInfo}
+
+
+2020/10/26 20:47:45 Created pkg:
+2020/10/26 20:47:45 &{ID: Name: Age:0 JavaClassName:com.ikurento.user.User SubInfo:0xc00006ec90}
+2020/10/26 20:47:45 SubInfo:
+2020/10/26 20:47:45 &{SubID: SubMale:false SubAge:0 JavaClassName:com.ikurento.user.SubInfo}
+
+
+2020/10/26 20:47:45 connected to localhost:20001!
+2020/10/26 20:47:45 try calling interface:com.ikurento.user.UserProvider.GetUser
+2020/10/26 20:47:45 with protocol:dubbo
+
+2020/10/26 20:47:45 After 3ms , Got Rsp:
+2020/10/26 20:47:45 &{ID:A002 Name:Alex Stocks Age:18 JavaClassName: SubInfo:0xc0001241b0}
+2020/10/26 20:47:45 SubInfo:
+2020/10/26 20:47:45 &{SubID:A001 SubMale:false SubAge:18 JavaClassName:}```
+```
+鍙湅鍒拌缁嗙殑璇锋眰浣撹祴鍊兼儏鍐碉紝浠ュ強杩斿洖缁撴灉鍜岃€楁椂銆傛敮鎸佸祵濂楃粨鏋�
+
+server绔墦鍗扮粨鏋�
+```
+=======================
+req:&main.CallUserStruct{ID:"A000", Male:true, SubInfo:main.SubInfo{SubID:"A001", SubMale:false, SubAge:18}}
+=======================
+```
+鍙鎺ユ敹鍒颁簡鏉ヨ嚜cli鐨勬暟鎹�
\ No newline at end of file
diff --git a/tools/cli/example/server/builddev.sh b/tools/cli/example/server/builddev.sh
new file mode 100644
index 0000000000000000000000000000000000000000..45a06ea5b28208dbaf59d971b9d75a32c632eb7d
--- /dev/null
+++ b/tools/cli/example/server/builddev.sh
@@ -0,0 +1,2 @@
+export APP_LOG_CONF_FILE="./config/log.yml"
+export CONF_PROVIDER_FILE_PATH="./config/server.yml"
\ No newline at end of file
diff --git a/tools/cli/example/server/config/log.yml b/tools/cli/example/server/config/log.yml
new file mode 100644
index 0000000000000000000000000000000000000000..59fa4279ad85272c4c49d532beaf23b74d00f58a
--- /dev/null
+++ b/tools/cli/example/server/config/log.yml
@@ -0,0 +1,28 @@
+
+level: "debug"
+development: true
+disableCaller: false
+disableStacktrace: false
+sampling:
+encoding: "console"
+
+# encoder
+encoderConfig:
+  messageKey: "message"
+  levelKey: "level"
+  timeKey: "time"
+  nameKey: "logger"
+  callerKey: "caller"
+  stacktraceKey: "stacktrace"
+  lineEnding: ""
+  levelEncoder: "capitalColor"
+  timeEncoder: "iso8601"
+  durationEncoder: "seconds"
+  callerEncoder: "short"
+  nameEncoder: ""
+
+outputPaths:
+  - "stderr"
+errorOutputPaths:
+  - "stderr"
+initialFields:
diff --git a/tools/cli/example/server/config/server.yml b/tools/cli/example/server/config/server.yml
new file mode 100644
index 0000000000000000000000000000000000000000..425eb1ca07bcd415bb7398fc3e6529eff5f9e7d6
--- /dev/null
+++ b/tools/cli/example/server/config/server.yml
@@ -0,0 +1,58 @@
+# dubbo server yaml configure file
+
+
+# application config
+application:
+  organization : "ikurento.com"
+  name : "BDTService"
+  module : "dubbogo user-info server"
+  version : "0.0.1"
+  owner : "ZX"
+  environment : "config"
+
+#registries :
+#  "demoConsul":
+#    protocol: "consul"
+#    timeout	: "3s"
+#    address: "127.0.0.1:8500"
+#    simplified: true
+
+services:
+  "UserProvider":
+    # 鍙互鎸囧畾澶氫釜registry锛屼娇鐢ㄩ€楀彿闅斿紑;涓嶆寚瀹氶粯璁ゅ悜鎵€鏈夋敞鍐屼腑蹇冩敞鍐�
+#    registry: "demoConsul"
+    protocol : "dubbo"
+    # 鐩稿綋浜巇ubbo.xml涓殑interface
+    interface : "com.ikurento.user.UserProvider"
+    loadbalance: "random"
+    warmup: "100"
+    cluster: "failover"
+    methods:
+    - name: "GetUser"
+      retries: 1
+      loadbalance: "random"
+
+protocols:
+  "dubbo":
+    name: "dubbo"
+    port: 20001
+
+
+protocol_conf:
+  dubbo:
+    session_number: 700
+    session_timeout: "180s"
+    getty_session_param:
+      compress_encoding: false
+      tcp_no_delay: true
+      tcp_keep_alive: true
+      keep_alive_period: "120s"
+      tcp_r_buf_size: 262144
+      tcp_w_buf_size: 65536
+      pkg_rq_size: 1024
+      pkg_wq_size: 512
+      tcp_read_timeout: "1s"
+      tcp_write_timeout: "5s"
+      wait_timeout: "1s"
+      max_msg_len: 1024000
+      session_name: "server"
diff --git a/tools/cli/example/server/go.mod b/tools/cli/example/server/go.mod
new file mode 100644
index 0000000000000000000000000000000000000000..53763f2805f4b5e4bc37239f301893e18d58b7cf
--- /dev/null
+++ b/tools/cli/example/server/go.mod
@@ -0,0 +1,8 @@
+module go-server
+
+go 1.13
+
+require (
+	github.com/apache/dubbo-go v1.5.4
+	github.com/apache/dubbo-go-hessian2 v1.7.0
+)
diff --git a/tools/cli/example/server/go.sum b/tools/cli/example/server/go.sum
new file mode 100644
index 0000000000000000000000000000000000000000..1f3cf1de845da8d69346bad04c0d4d597aaee789
--- /dev/null
+++ b/tools/cli/example/server/go.sum
@@ -0,0 +1,989 @@
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diff --git a/tools/cli/example/server/main.go b/tools/cli/example/server/main.go
new file mode 100644
index 0000000000000000000000000000000000000000..ed1ed5290e7d74b6a757ad13436f781a74273fe5
--- /dev/null
+++ b/tools/cli/example/server/main.go
@@ -0,0 +1,77 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+)
+
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	"github.com/apache/dubbo-go/common/logger"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/filter_impl"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
+	_ "github.com/apache/dubbo-go/registry/consul"
+	_ "github.com/apache/dubbo-go/registry/protocol"
+)
+
+var (
+	survivalTimeout = int(3e9)
+)
+
+// they are necessary:
+// 		export CONF_PROVIDER_FILE_PATH="xxx"
+// 		export APP_LOG_CONF_FILE="xxx"
+func main() {
+	hessian.RegisterPOJO(&SubInfo{})
+	hessian.RegisterPOJO(&User{})
+	config.Load()
+
+	initSignal()
+}
+
+func initSignal() {
+	signals := make(chan os.Signal, 1)
+	// It is not possible to block SIGKILL or syscall.SIGSTOP
+	signal.Notify(signals, os.Interrupt, os.Kill, syscall.SIGHUP, syscall.SIGQUIT, syscall.SIGTERM, syscall.SIGINT)
+	for {
+		sig := <-signals
+		logger.Infof("get signal %s", sig.String())
+		switch sig {
+		case syscall.SIGHUP:
+			// reload()
+		default:
+			time.AfterFunc(time.Duration(survivalTimeout), func() {
+				logger.Warnf("app exit now by force...")
+				os.Exit(1)
+			})
+			time.Sleep(time.Second)
+			// The program exits normally or timeout forcibly exits.
+			fmt.Println("provider app exit now...")
+			return
+		}
+	}
+}
diff --git a/tools/cli/example/server/user.go b/tools/cli/example/server/user.go
new file mode 100644
index 0000000000000000000000000000000000000000..5835848dc9ad28fd2b14d2ee6fd0f4abfb5a8396
--- /dev/null
+++ b/tools/cli/example/server/user.go
@@ -0,0 +1,80 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"context"
+	"fmt"
+)
+
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
+	"github.com/apache/dubbo-go/config"
+)
+
+func init() {
+	config.SetProviderService(new(UserProvider))
+	// ------for hessian2------
+	hessian.RegisterPOJO(&User{})
+	hessian.RegisterPOJO(&CallUserStruct{})
+}
+
+type UserProvider struct {
+}
+
+func (u *UserProvider) GetUser(ctx context.Context, userStruct *CallUserStruct) (*User, error) {
+	fmt.Printf("=======================\nreq:%#v\n", userStruct)
+	rsp := User{"A002", "Alex Stocks", 18, userStruct.SubInfo}
+	fmt.Printf("=======================\nrsp:%#v\n", rsp)
+	return &rsp, nil
+}
+
+func (u *UserProvider) Reference() string {
+	return "UserProvider"
+}
+
+type User struct {
+	Id      string
+	Name    string
+	Age     int32
+	SubInfo SubInfo
+}
+
+func (u *User) JavaClassName() string {
+	return "com.ikurento.user.User"
+}
+
+type CallUserStruct struct {
+	ID      string
+	Male    bool
+	SubInfo SubInfo
+}
+
+type SubInfo struct {
+	SubID   string
+	SubMale bool
+	SubAge  int
+}
+
+func (s SubInfo) JavaClassName() string {
+	return "com.ikurento.user.SubInfo"
+}
+
+func (cs CallUserStruct) JavaClassName() string {
+	return "com.ikurento.user.CallUserStruct"
+}
diff --git a/tools/cli/example/test.sh b/tools/cli/example/test.sh
new file mode 100644
index 0000000000000000000000000000000000000000..9a038a9594e6eff29f3a69c27cb970342b6629cf
--- /dev/null
+++ b/tools/cli/example/test.sh
@@ -0,0 +1 @@
+./dubbo-go-cli -h=localhost -p=20001 -proto=dubbo -i=com.ikurento.user.UserProvider -method=GetUser -sendObj="./userCall.json" -recvObj="./user.json"
\ No newline at end of file
diff --git a/tools/cli/example/user.json b/tools/cli/example/user.json
new file mode 100644
index 0000000000000000000000000000000000000000..1e6321993cda758e1511b3f08540b334e8e8027e
--- /dev/null
+++ b/tools/cli/example/user.json
@@ -0,0 +1,12 @@
+{
+  "ID": "string",
+  "Name": "string",
+  "Age": "int",
+  "JavaClassName":  "string@com.ikurento.user.User",
+  "SubInfo": {
+    "SubID": "string",
+    "SubMale": "bool",
+    "SubAge": "int",
+    "JavaClassName":"string@com.ikurento.user.SubInfo"
+  }
+}
\ No newline at end of file
diff --git a/tools/cli/example/userCall.json b/tools/cli/example/userCall.json
new file mode 100644
index 0000000000000000000000000000000000000000..6ef703569dcb4c8274b99d562cb874d0f74eb064
--- /dev/null
+++ b/tools/cli/example/userCall.json
@@ -0,0 +1,11 @@
+{
+  "ID": "string@A000",
+  "Male": "bool@true",
+  "SubInfo": {
+    "SubID": "string@A001",
+    "SubMale": "bool@false",
+    "SubAge": "int@18",
+    "JavaClassName":"string@com.ikurento.user.SubInfo"
+  },
+  "JavaClassName": "string@com.ikurento.user.CallUserStruct"
+}
\ No newline at end of file
diff --git a/tools/cli/go.mod b/tools/cli/go.mod
new file mode 100644
index 0000000000000000000000000000000000000000..559c7b0c1991a9b2f9c1d4fba3878811a0260493
--- /dev/null
+++ b/tools/cli/go.mod
@@ -0,0 +1,12 @@
+module github.com/apache/dubbo-go/tools/cli
+
+go 1.13
+
+require (
+	github.com/apache/dubbo-go-hessian2 v1.8.0
+	github.com/dubbogo/gost v1.11.1
+	github.com/pkg/errors v0.9.1
+	go.uber.org/atomic v1.7.0
+)
+
+replace github.com/coreos/bbolt => go.etcd.io/bbolt v1.3.4
diff --git a/tools/cli/go.sum b/tools/cli/go.sum
new file mode 100644
index 0000000000000000000000000000000000000000..baaee26131ff65e0e93d08972ffa285f4a60b883
--- /dev/null
+++ b/tools/cli/go.sum
@@ -0,0 +1,482 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
+github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
+github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
+github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
+github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
+github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
+github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
+github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
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diff --git a/tools/cli/json_register/json_register.go b/tools/cli/json_register/json_register.go
new file mode 100644
index 0000000000000000000000000000000000000000..e1ad7870212b72ba4320153d637e77fcc4e83df9
--- /dev/null
+++ b/tools/cli/json_register/json_register.go
@@ -0,0 +1,66 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package json_register
+
+import (
+	"fmt"
+	"log"
+	"reflect"
+)
+
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
+	jparser "github.com/dubbogo/gost/encoding/json"
+)
+
+import (
+	"github.com/apache/dubbo-go/tools/cli/common"
+)
+
+// RegisterStructFromFile create the interface defined by @path file, and register it to hessian
+// the interface defined must have field "JavaClassName"
+func RegisterStructFromFile(path string) interface{} {
+	if path == "" {
+		return nil
+	}
+	pair, pkg, err := jparser.File2Interface(path)
+	log.Printf("Created pkg: \n")
+	common.PrintInterface(pkg)
+	if err != nil {
+		fmt.Println("error: json file parse failed :", err)
+		return nil
+	}
+	for _, v := range pair {
+		hessian.RegisterPOJOMapping(v.JavaClassName, v.Obj)
+	}
+	hessian.RegisterPOJOMapping(getJavaClassName(pkg), pkg)
+	return pkg
+}
+
+func getJavaClassName(pkg interface{}) string {
+	val := reflect.ValueOf(pkg).Elem()
+	typ := reflect.TypeOf(pkg).Elem()
+	nums := val.NumField()
+	for i := 0; i < nums; i++ {
+		if typ.Field(i).Name == "JavaClassName" {
+			return val.Field(i).String()
+		}
+	}
+	fmt.Println("error: JavaClassName not found")
+	return ""
+}
diff --git a/tools/cli/main.go b/tools/cli/main.go
new file mode 100644
index 0000000000000000000000000000000000000000..1f90f67293d2a6eedc27392ea647ee5c971fd309
--- /dev/null
+++ b/tools/cli/main.go
@@ -0,0 +1,78 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"flag"
+	"log"
+)
+
+import (
+	"github.com/apache/dubbo-go/tools/cli/client"
+	"github.com/apache/dubbo-go/tools/cli/json_register"
+)
+
+var host string
+var port int
+var protocolName string
+var InterfaceID string
+var version string
+var group string
+var method string
+var sendObjFilePath string
+var recvObjFilePath string
+var timeout int
+
+func init() {
+	flag.StringVar(&host, "h", "localhost", "target server host")
+	flag.IntVar(&port, "p", 8080, "target server port")
+	flag.StringVar(&protocolName, "proto", "dubbo", "transfer protocol")
+	flag.StringVar(&InterfaceID, "i", "com", "target service registered interface")
+	flag.StringVar(&version, "v", "", "target service version")
+	flag.StringVar(&group, "g", "", "target service group")
+	flag.StringVar(&method, "method", "", "target method")
+	flag.StringVar(&sendObjFilePath, "sendObj", "", "json file path to define transfer struct")
+	flag.StringVar(&recvObjFilePath, "recvObj", "", "json file path to define receive struct")
+	flag.IntVar(&timeout, "timeout", 3000, "request timeout (ms)")
+}
+
+func checkParam() {
+	if method == "" {
+		log.Fatalln("-method value not fond")
+	}
+	if sendObjFilePath == "" {
+		log.Fatalln("-sendObj value not found")
+	}
+	if recvObjFilePath == "" {
+		log.Fatalln("-recObj value not found")
+	}
+}
+
+func main() {
+	flag.Parse()
+	checkParam()
+	reqPkg := json_register.RegisterStructFromFile(sendObjFilePath)
+	recvPkg := json_register.RegisterStructFromFile(recvObjFilePath)
+
+	t, err := client.NewTelnetClient(host, port, protocolName, InterfaceID, version, group, method, reqPkg, timeout)
+	if err != nil {
+		panic(err)
+	}
+	t.ProcessRequests(recvPkg)
+	t.Destroy()
+}
diff --git a/tools/cli/protocol/dubbo/codec.go b/tools/cli/protocol/dubbo/codec.go
new file mode 100644
index 0000000000000000000000000000000000000000..f73bf8e5c0d89ffada3bdbaa339c0e76498c6eb7
--- /dev/null
+++ b/tools/cli/protocol/dubbo/codec.go
@@ -0,0 +1,125 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package dubbo
+
+import (
+	"bufio"
+	"bytes"
+	e1 "errors"
+	"fmt"
+	"sync"
+)
+
+import (
+	perrors "github.com/pkg/errors"
+)
+
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
+)
+
+//SerialID serial ID
+type SerialID byte
+
+const (
+	// S_Dubbo protocol serial id
+	S_Dubbo SerialID = 2
+)
+
+//CallType call type
+type CallType int32
+
+const (
+	// CT_UNKNOWN unknown call type
+	CT_UNKNOWN CallType = 0
+	// CT_OneWay call one way
+	CT_OneWay CallType = 1
+	// CT_TwoWay call in request/response
+	CT_TwoWay CallType = 2
+)
+
+////////////////////////////////////////////
+// protocol package
+////////////////////////////////////////////
+
+// SequenceType sequence type
+type SequenceType int64
+
+// nolint
+type DubboPackage struct {
+	Header  hessian.DubboHeader
+	Service hessian.Service
+	Body    interface{}
+	Err     error
+}
+
+// Marshal encode hessian package.
+// DubboPackage -> byte
+func (p *DubboPackage) Marshal() (*bytes.Buffer, error) {
+	codec := hessian.NewHessianCodec(nil)
+	pkg, err := codec.Write(p.Service, p.Header, p.Body)
+	if err != nil {
+		return nil, perrors.WithStack(err)
+	}
+	return bytes.NewBuffer(pkg), nil
+}
+
+// Unmarshal decodes hessian package.
+// byte -> DubboPackage
+func (p *DubboPackage) Unmarshal(buf *bytes.Buffer, pendingRsp *sync.Map) error {
+	bufLen := buf.Len()
+	if bufLen < hessian.HEADER_LENGTH {
+		return perrors.WithStack(hessian.ErrHeaderNotEnough)
+	}
+	codec := hessian.NewHessianCodec(bufio.NewReaderSize(buf, bufLen))
+	// read header
+	err := codec.ReadHeader(&p.Header)
+	if err != nil {
+		return perrors.WithStack(err)
+	}
+	if p.Header.Type&hessian.PackageRequest != 0x00 {
+		p.Body = make([]interface{}, 7)
+	} else {
+		rspObj, ok := pendingRsp.Load(uint64(p.Header.ID))
+		if !ok {
+			return e1.New(fmt.Sprintf("seq = %d  not found", p.Header.ID))
+		}
+		p.Body = &hessian.Response{RspObj: rspObj}
+	}
+
+	// read body
+	err = codec.ReadBody(p.Body)
+	return perrors.WithStack(err)
+}
+
+////////////////////////////////////////////
+// Response
+////////////////////////////////////////////
+// Response is protocol protocol response.
+type Response struct {
+	Reply interface{}
+	atta  map[string]string
+}
+
+// NewResponse creates a new Response.
+func NewResponse(reply interface{}, atta map[string]string) *Response {
+	return &Response{
+		Reply: reply,
+		atta:  atta,
+	}
+}
diff --git a/tools/cli/protocol/dubbo/dubbo_protocol.go b/tools/cli/protocol/dubbo/dubbo_protocol.go
new file mode 100644
index 0000000000000000000000000000000000000000..97a3ac7ea526ef43256dbfda237a95757eb38fc7
--- /dev/null
+++ b/tools/cli/protocol/dubbo/dubbo_protocol.go
@@ -0,0 +1,112 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package dubbo
+
+import (
+	"bytes"
+	"log"
+	"sync"
+	"time"
+)
+
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
+	perrors "github.com/pkg/errors"
+)
+
+import (
+	"github.com/apache/dubbo-go/tools/cli/common"
+	"github.com/apache/dubbo-go/tools/cli/protocol"
+)
+
+func init() {
+	common.SetProtocol("dubbo", NewRpcClientPackageHandler)
+}
+
+// RpcClientPackageHandler handle package for client in getty.
+type RpcClientPackageHandler struct {
+}
+
+func NewRpcClientPackageHandler() protocol.Protocol {
+	return RpcClientPackageHandler{}
+}
+
+// Read decode @data to DubboPackage.
+func (p RpcClientPackageHandler) Read(data []byte, pendingRsp *sync.Map) (interface{}, int, error) {
+	pkg := &DubboPackage{}
+
+	buf := bytes.NewBuffer(data)
+	err := pkg.Unmarshal(buf, pendingRsp)
+	if err != nil {
+		originErr := perrors.Cause(err)
+		if originErr == hessian.ErrHeaderNotEnough || originErr == hessian.ErrBodyNotEnough {
+			return nil, 0, nil
+		}
+
+		return nil, 0, perrors.WithStack(err)
+	}
+
+	if pkg.Header.Type&hessian.PackageRequest == 0x00 {
+		pkg.Err = pkg.Body.(*hessian.Response).Exception
+		pkg.Body = NewResponse(pkg.Body.(*hessian.Response).RspObj, pkg.Body.(*hessian.Response).Attachments)
+	}
+	dubboRsp, ok := pkg.Body.(*Response)
+	if !ok {
+		log.Println("error: dubbboRsp.Body assertion err:")
+	}
+
+	return dubboRsp.Reply, hessian.HEADER_LENGTH + pkg.Header.BodyLen, nil
+}
+
+// Write encode @clientReq to []byte
+func (p RpcClientPackageHandler) Write(clientReq *protocol.Request) ([]byte, error) {
+	req, ok := parseReq2DubboPkg(clientReq)
+	if !ok {
+		log.Printf("illegal clientReq:%+v\n", clientReq)
+		return nil, perrors.New("invalid rpc request")
+	}
+
+	buf, err := req.Marshal()
+	if err != nil {
+		log.Printf("binary.Write(req{%#v}) = err{%#v}\n", req, perrors.WithStack(err))
+		return nil, perrors.WithStack(err)
+	}
+
+	return buf.Bytes(), nil
+}
+
+func parseReq2DubboPkg(req *protocol.Request) (*DubboPackage, bool) {
+	p := &DubboPackage{}
+
+	p.Service.Interface = req.InterfaceID
+	p.Service.Version = req.Version
+	p.Service.Group = req.Group
+	p.Service.Method = req.Method
+	p.Service.Timeout = time.Second * 3
+	p.Header.SerialID = byte(S_Dubbo)
+	p.Service.Path = req.InterfaceID
+
+	atta := make(map[string]string)
+	atta["async"] = "false"
+	atta["interface"] = req.InterfaceID
+	p.Body = hessian.NewRequest(req.Params, atta)
+	p.Header.Type = hessian.PackageRequest_TwoWay
+	p.Header.ID = int64(req.ID)
+
+	return p, true
+}
diff --git a/tools/cli/protocol/protocol.go b/tools/cli/protocol/protocol.go
new file mode 100644
index 0000000000000000000000000000000000000000..136524b52262f934371777b5c652537e6ebd3c2e
--- /dev/null
+++ b/tools/cli/protocol/protocol.go
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package protocol
+
+import (
+	"sync"
+)
+
+type Protocol interface {
+	Read([]byte, *sync.Map) (interface{}, int, error)
+	Write(*Request) ([]byte, error)
+}
+
+type Request struct {
+	ID          uint64
+	InterfaceID string // interface瀵诲潃id
+	Version     string
+	Group       string
+	Method      string
+	Params      interface{}
+	pojo        interface{}
+}
diff --git a/tools/cli/test.sh b/tools/cli/test.sh
new file mode 100644
index 0000000000000000000000000000000000000000..fa11833b52b3a332a5dcbf2ced456471bdd9e3fa
--- /dev/null
+++ b/tools/cli/test.sh
@@ -0,0 +1 @@
+go run . -h=localhost -p=20001 -proto=dubbo -i=com.ikurento.user.UserProvider -method=GetUser -sendObj="./userCall.json" -recvObj="./user.json"
\ No newline at end of file
diff --git a/tools/cli/user.json b/tools/cli/user.json
new file mode 100644
index 0000000000000000000000000000000000000000..1e6321993cda758e1511b3f08540b334e8e8027e
--- /dev/null
+++ b/tools/cli/user.json
@@ -0,0 +1,12 @@
+{
+  "ID": "string",
+  "Name": "string",
+  "Age": "int",
+  "JavaClassName":  "string@com.ikurento.user.User",
+  "SubInfo": {
+    "SubID": "string",
+    "SubMale": "bool",
+    "SubAge": "int",
+    "JavaClassName":"string@com.ikurento.user.SubInfo"
+  }
+}
\ No newline at end of file
diff --git a/tools/cli/userCall.json b/tools/cli/userCall.json
new file mode 100644
index 0000000000000000000000000000000000000000..6ef703569dcb4c8274b99d562cb874d0f74eb064
--- /dev/null
+++ b/tools/cli/userCall.json
@@ -0,0 +1,11 @@
+{
+  "ID": "string@A000",
+  "Male": "bool@true",
+  "SubInfo": {
+    "SubID": "string@A001",
+    "SubMale": "bool@false",
+    "SubAge": "int@18",
+    "JavaClassName":"string@com.ikurento.user.SubInfo"
+  },
+  "JavaClassName": "string@com.ikurento.user.CallUserStruct"
+}
\ No newline at end of file