diff --git a/.github/workflows/github-actions.yml b/.github/workflows/github-actions.yml
index 975a2a7520a7d17cac1a60e2544af1720cf10e44..a20fb8d48bb5e65e8ec1113c60dcb12e8f0393b5 100644
--- a/.github/workflows/github-actions.yml
+++ b/.github/workflows/github-actions.yml
@@ -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
+        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 4f79ecf3bc1439e00c88c4d0de74cc7a4bf26909..0000000000000000000000000000000000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,28 +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:
-  - go fmt ./... && [[ -z `git status -s` ]]
-  # 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/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 f950a4b3e9c4e115eda2f0e99379286c4c66d24f..c77a0b47665db4d82064714426995834e6a778d0 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@
 ![license](https://img.shields.io/badge/license-Apache--2.0-green.svg)
 
 ---
+
 Apache Dubbo Go Implementation.
 
 
@@ -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)
@@ -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 +175,17 @@ 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.
+
+<a href="http://alexstocks.github.io/html/dubbogo.html">
+<img src="./doc/pic/misc/dubbogo-dingding.png"  height="80" width="80"></a>
+
+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).
@@ -259,8 +263,13 @@ If you are using [apache/dubbo-go](github.com/apache/dubbo-go) and think that it
           <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> 
+    <tr></tr>
   </tbody>
 </table>
 </div>
diff --git a/README_CN.md b/README_CN.md
index ff72428d977f8b24c7c60b228108987c823c9efa..bc3b54bf4c9198a74f7a4bd5d2a5c038f408aae0 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -15,14 +15,14 @@ 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 +67,11 @@ 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 +112,7 @@ 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 +133,17 @@ 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 +173,17 @@ 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�
+
+<a href="http://alexstocks.github.io/html/dubbogo.html">
+<img src="./doc/pic/misc/dubbogo-dingding.png"  height="80" width="80"></a>
+
+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�
+
+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€呫€�
+
 ## 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�
@@ -256,9 +259,14 @@ make test
         <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> 
+    <tr></tr>
   </tbody>
 </table>
-</div>
\ No newline at end of file
+</div>
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/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/chain/chain.go b/cluster/router/chain/chain.go
index f55cd07bc9b360d3d79a7004bcc46ee8e8bc0d89..fccce838bb3f6750b72b83c4991ad78e8b49f138 100644
--- a/cluster/router/chain/chain.go
+++ b/cluster/router/chain/chain.go
@@ -195,7 +195,7 @@ 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
 	}
 
@@ -296,8 +296,10 @@ 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..1bb7124a4f877a0ca65a3a683da97a44168e0275 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))
@@ -154,11 +160,15 @@ 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 +208,15 @@ 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 +238,17 @@ 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_test.go b/cluster/router/condition/app_router_test.go
index 879abc5cc8b607ee9245ce632800b056ff740cc5..c8bc43eb33f9cbbb8bbc5c0b87a57907ac15aa62 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)
@@ -115,8 +118,11 @@ 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)
@@ -154,8 +160,11 @@ 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)
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..102d766a8a787b460c878c42e8327c1a57ea9588 100644
--- a/cluster/router/condition/listenable_router.go
+++ b/cluster/router/condition/listenable_router.go
@@ -47,8 +47,8 @@ type listenableRouter struct {
 	conditionRouters []*ConditionRouter
 	routerRule       *RouterRule
 	url              *common.URL
-	force            bool
-	priority         int64
+	//force            bool
+	priority int64
 }
 
 // RouterRule Get RouterRule instance from listenableRouter
diff --git a/cluster/router/condition/router.go b/cluster/router/condition/router.go
index 2fc33072d33517810f0c9ab3b8351d7bdcfea8b4..0817b32843938346610aa1e66c626e4895468372 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
@@ -221,14 +228,14 @@ 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..a344b64efb5d7be1fe7e5d2a5a4c9d206cfcf5da 100644
--- a/cluster/router/condition/router_test.go
+++ b/cluster/router/condition/router_test.go
@@ -70,10 +70,12 @@ func TestNewConditionRouter(t *testing.T) {
 	assert.EqualValues(t, router.ThenCondition, thenRule)
 
 	router, err = NewConditionRouter(nil)
+	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)
+	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`)
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/tag/file.go b/cluster/router/tag/file.go
index 94daf1508eb7b3f4d8a8cacdbd6ed634be6852da..a51ae69cf26fa6e7d10444a23cbff339a5a99b3e 100644
--- a/cluster/router/tag/file.go
+++ b/cluster/router/tag/file.go
@@ -41,7 +41,7 @@ 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)
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..984ecb4eeff71dd692cbda8db5e3b87dbdde4254 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
@@ -227,7 +227,7 @@ 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..26c4b8352ba1fce4f6204628f6c09309e3b607d3 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
@@ -238,7 +237,7 @@ func TestRouteBeijingInvoker(t *testing.T) {
 
 type DynamicTagRouter struct {
 	suite.Suite
-	rule *RouterRule
+	//rule *RouterRule
 
 	route       *tagRouter
 	zkClient    *zookeeper.ZookeeperClient
@@ -310,7 +309,8 @@ tags:
 
 func (suite *DynamicTagRouter) TearDownTest() {
 	suite.zkClient.Close()
-	suite.testCluster.Stop()
+	err := suite.testCluster.Stop()
+	suite.Nil(err)
 }
 
 func (suite *DynamicTagRouter) TestDynamicTagRouterSetByIPv4() {
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/key.go b/common/constant/key.go
index 9525511cdaac64083cc595e1c0a6327a4ded6f9c..0515094f285a4bf598b04e2ea1ef376325de7ac1 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 (
@@ -92,7 +94,7 @@ const (
 )
 
 const (
-	DUBBOGO_CTX_KEY = "dubbogo-ctx"
+	DUBBOGO_CTX_KEY = DubboCtxKey("dubbogo-ctx")
 )
 
 const (
@@ -127,6 +129,7 @@ const (
 	TAG_ROUTE_PROTOCOL       = "tag"
 	PROVIDERS_CATEGORY       = "providers"
 	ROUTER_KEY               = "router"
+	EXPORT_KEY               = "export"
 )
 
 const (
@@ -170,6 +173,7 @@ const (
 	NACOS_NAMESPACE_ID           = "namespaceId"
 	NACOS_PASSWORD               = "password"
 	NACOS_USERNAME               = "username"
+	NACOS_NOT_LOAD_LOCAL_CACHE   = "nacos.not.load.cache"
 )
 
 const (
@@ -197,7 +201,7 @@ const (
 )
 
 const (
-	TRACING_REMOTE_SPAN_CTX = "tracing.remote.span.ctx"
+	TRACING_REMOTE_SPAN_CTX = DubboCtxKey("tracing.remote.span.ctx")
 )
 
 // Use for router module
@@ -237,7 +241,7 @@ const (
 	Tagkey      = "dubbo.tag"
 
 	// Attachment key in context in invoker
-	AttachmentKey = "attachment"
+	AttachmentKey = DubboCtxKey("attachment")
 )
 
 const (
@@ -264,7 +268,7 @@ 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 +296,7 @@ const (
 	HEALTH_CHECKER = "health.checker"
 	// The name of the default implementation of HealthChecker
 	DEFAULT_HEALTH_CHECKER = "default"
-	// The key of oustanding-request-limit
+	// 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/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/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..4a2f07cb30ee6b5840a3915b441ae0a554f5d5cb 100644
--- a/common/logger/logger.go
+++ b/common/logger/logger.go
@@ -163,6 +163,7 @@ 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..55f533cb2b95269c27c2d2eccf96c33af04bbee1 100644
--- a/common/proxy/proxy.go
+++ b/common/proxy/proxy.go
@@ -66,7 +66,6 @@ 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) {
-
 	// check parameters, incoming interface must be a elem's pointer.
 	valueOf := reflect.ValueOf(v)
 	logger.Debugf("[Implement] reflect.TypeOf: %s", valueOf.String())
@@ -145,7 +144,7 @@ func (p *Proxy) Implement(v common.RPCService) {
 				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 +158,11 @@ 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 {
@@ -235,3 +230,8 @@ func (p *Proxy) Get() common.RPCService {
 func (p *Proxy) GetCallback() interface{} {
 	return p.callBack
 }
+
+// GetInvoker gets Invoker.
+func (p *Proxy) GetInvoker() protocol.Invoker {
+	return p.invoke
+}
diff --git a/common/proxy/proxy_test.go b/common/proxy/proxy_test.go
index f31caf990d3e56c472f5510e57367b4845c9c966..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"
 )
@@ -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 572fc71701c411a7a0a070c2a84e9a4d96da6dfb..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)
 }
@@ -156,13 +156,13 @@ type serviceMap struct {
 	interfaceMap map[string][]*Service          // interface -> service
 }
 
-// GetService gets a service defination by protocol and name
+// 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 defination by protocol and service key
+// 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()
diff --git a/common/rpc_service_test.go b/common/rpc_service_test.go
index b50d8d962c4277f702388b74e5137bdf1c8bdf7e..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"
@@ -125,21 +129,20 @@ func TestServiceMapUnRegister(t *testing.T) {
 	err = ServiceMap.UnRegister("", testProtocol, ServiceKey("TestService", "", "v0"))
 	assert.EqualError(t, err, "no service for TestService:v0")
 
-	// succ
+	// 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 81f076043e71bf89d91121b185ce7fad843bc764..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
 }
 
@@ -109,6 +113,10 @@ type URL struct {
 	noCopy noCopy
 
 	baseUrl
+	//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
@@ -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
@@ -408,6 +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)
 }
 
@@ -426,9 +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()
@@ -444,10 +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
 }
 
@@ -623,22 +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
@@ -647,33 +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 {
@@ -713,6 +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
 	}
@@ -739,15 +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}
 			}
 		})
 	}
@@ -772,3 +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_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..35910981d128bdca7d63973328e2752ecfef6933 100644
--- a/config/config_loader.go
+++ b/config/config_loader.go
@@ -406,9 +406,9 @@ 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 c3c3eb93526a51fe8f2041b17049144b4ec7b703..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", common.ServiceKey("com.MockService", "huadong_idc", "1.0.0"))
+	err := common.ServiceMap.UnRegister("com.MockService", "mock",
+		common.ServiceKey("com.MockService", "huadong_idc", "1.0.0"))
 	assert.Nil(t, err)
 	consumerConfig = nil
 	providerConfig = nil
@@ -182,6 +183,9 @@ func TestWithNoRegLoad(t *testing.T) {
 
 	conServices = map[string]common.RPCService{}
 	proServices = map[string]common.RPCService{}
+	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/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 e616a3595b85effa25534146e659fae5f0996b41..895ab9df26399c1c9a1296e44fba8a284ba2fb6c 100644
--- a/config/reference_config.go
+++ b/config/reference_config.go
@@ -86,11 +86,7 @@ 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 ...
@@ -104,6 +100,9 @@ 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*")
@@ -168,7 +167,8 @@ 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 +189,11 @@ 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 +257,16 @@ func (c *ReferenceConfig) GenericLoad(id string) {
 	c.Refer(genericService)
 	c.Implement(genericService)
 }
+
+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/service_config.go b/config/service_config.go
index 32104f03ddba1c7a24a43a7989287a9b711565e7..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,
 	}
 }
 
@@ -173,7 +176,8 @@ func (c *ServiceConfig) Export() error {
 		// registry the service reflect
 		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
 		}
@@ -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_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/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/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_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_service_filter_test.go b/filter/filter_impl/generic_service_filter_test.go
index 8b2fb549c299bb6c1cf65c4254ba6784caec5655..c755a2d28080e8c6a56e742181b944d299e493ed 100644
--- a/filter/filter_impl/generic_service_filter_test.go
+++ b/filter/filter_impl/generic_service_filter_test.go
@@ -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 e886647eefbbad102e340819f96456fcfedaae02..5baa70a5bc4eebe162243a485521543802a51f2c 100644
--- a/filter/filter_impl/tps/tps_limiter_method_service_test.go
+++ b/filter/filter_impl/tps/tps_limiter_method_service_test.go
@@ -36,7 +36,7 @@ import (
 
 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 ee84df7e0c4f70e24f1c06f17b9bdc0a0200b391..a4a75f43dc21f50d3e4f634bb6d9b9ecd0fde951 100644
--- a/go.mod
+++ b/go.mod
@@ -1,44 +1,49 @@
 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 v1.4.1
+	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 v1.9.5
+	github.com/dubbogo/gost v1.11.0
 	github.com/elazarl/go-bindata-assetfs v1.0.0 // indirect
 	github.com/emicklei/go-restful/v3 v3.4.0
+	github.com/frankban/quicktest v1.4.1 // indirect
 	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
 	github.com/golang/protobuf v1.4.3
 	github.com/grpc-ecosystem/grpc-opentracing v0.0.0-20180507213350-8e809c8a8645
-	github.com/hashicorp/consul v1.8.7
-	github.com/hashicorp/consul/api v1.7.0
+	github.com/hashicorp/consul v1.8.0
+	github.com/hashicorp/consul/api v1.5.0
 	github.com/hashicorp/go-raftchunking v0.6.3-0.20191002164813-7e9e8525653a // indirect
-	github.com/hashicorp/vault/sdk v0.1.14-0.20200519221838-e0cfd64bc267
+	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 v1.8.4
-	github.com/mitchellh/mapstructure v1.4.0
+	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 v1.0.5
 	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 v1.8.0
 	github.com/satori/go.uuid v1.2.1-0.20181028125025-b2ce2384e17b
-	github.com/shirou/w32 v0.0.0-20160930032740-bb4de0191aa4 // indirect
 	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 v1.7.0
 	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 v2.4.0
 	k8s.io/api v0.16.9
@@ -47,6 +52,8 @@ require (
 	k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a // indirect
 )
 
-replace github.com/shirou/gopsutil => github.com/shirou/gopsutil v0.0.0-20181107111621-48177ef5f880
-
-go 1.13
+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
+)
diff --git a/go.sum b/go.sum
index 4948848529c802b7f2875521bd717ab9a1bd9c14..ba15b5d94337a39630d6ffbc526485684b95c875 100644
--- a/go.sum
+++ b/go.sum
@@ -4,37 +4,27 @@ cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSR
 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 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=
@@ -44,15 +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=
@@ -62,16 +49,13 @@ github.com/DataDog/datadog-go v2.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3
 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=
@@ -88,25 +72,19 @@ github.com/abdullin/seq v0.0.0-20160510034733-d5467c17e7af h1:DBNMBMuMiWYu0b+8KM
 github.com/abdullin/seq v0.0.0-20160510034733-d5467c17e7af/go.mod h1:5Jv4cbFiHJMsVxt52+i0Ha45fjshj6wxYr1r19tB9bw=
 github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5 h1:rFw4nCn9iMW+Vajsk51NtYIcwSTkXr+JGrMd36kTDJw=
 github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
-github.com/akamai/AkamaiOPEN-edgegrid-golang v0.9.0/go.mod h1:zpDJeKyp9ScW4NNrbdr+Eyxvry3ilGPewKoXw3XGN1k=
-github.com/alangpierce/go-forceexport v0.0.0-20160317203124-8f1d6941cd75/go.mod h1:uAXEEpARkRhCZfEvy/y0Jcc888f9tHCc1W7/UeEtreE=
-github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7/go.mod h1:6zEj6s6u/ghQa61ZWa/C2Aw3RkjiTBOix7dkqa1VLIs=
 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/alibaba/sentinel-golang v0.6.2 h1:1OjjpljJbNKWp9p5RJKxOqS1gHGZPUWPlCcokv5xYJs=
-github.com/alibaba/sentinel-golang v0.6.2/go.mod h1:5jemKdyCQCKVf+quEia53fo9a17OSe+wnl9HX2NbNpc=
-github.com/aliyun/alibaba-cloud-sdk-go v0.0.0-20190808125512-07798873deee/go.mod h1:myCDvQSzCW+wB1WAlocEru4wMGJxy+vlxHdhegi1CDQ=
+github.com/alibaba/sentinel-golang v1.0.2 h1:Acopq74hOtZN4MV1v811MQ6QcqPFLDSczTrRXv9zpIg=
+github.com/alibaba/sentinel-golang v1.0.2/go.mod h1:QsB99f/z35D2AiMrAWwgWE85kDTkBUIkcmPrRt+61NI=
 github.com/aliyun/alibaba-cloud-sdk-go v1.61.18 h1:zOVTBdCKFd9JbCKz9/nt+FovbjPFmb7mUnp8nH9fQBA=
 github.com/aliyun/alibaba-cloud-sdk-go v1.61.18/go.mod h1:v8ESoHo4SyHmuB4b1tJqDHxfTGEciD+yhvOU/5s1Rfk=
-github.com/aliyun/aliyun-oss-go-sdk v0.0.0-20190307165228-86c17b95fcd5/go.mod h1:T/Aws4fEfogEE9v+HPhhw+CntffsBHJ8nXQCwKr0/g8=
-github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
-github.com/apache/dubbo-getty v1.3.10 h1:ys5mwjPdxG/KwkPjS6EI0RzQtU6p6FCPoKpaFEzpAL0=
-github.com/apache/dubbo-getty v1.3.10/go.mod h1:x6rraK01BL5C7jUM2fPl5KMkAxLVIx54ZB8/XEOik9Y=
-github.com/apache/dubbo-go-hessian2 v1.7.0 h1:u2XxIuepu/zb6JcGZc7EbvKboXdKoJbf7rbmeq6SF1w=
-github.com/apache/dubbo-go-hessian2 v1.7.0/go.mod h1:7rEw9guWABQa6Aqb8HeZcsYPHsOS7XT1qtJvkmI6c5w=
+github.com/apache/dubbo-getty v1.4.1 h1:M9yaFhemThQSWtRwmJNrxNuv7FzydlFx5EY8oq1v+lw=
+github.com/apache/dubbo-getty v1.4.1/go.mod h1:ansXgKxxyhCOiQL29nO5ce1MDcEKmCyZuNR9oMs3hek=
+github.com/apache/dubbo-go-hessian2 v1.8.2 h1:CQq2Mmlrk6Fqmudwl9Dqps8drTrBFnmXRlzgOjj0FqA=
+github.com/apache/dubbo-go-hessian2 v1.8.2/go.mod h1:xQUjE7F8PX49nm80kChFvepA/AvqAZ0oh/UaB6+6pBE=
 github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
 github.com/apache/thrift v0.13.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e h1:QEF07wC0T1rKkctt1RINW/+RMTVmiwxETico2l3gxJA=
@@ -116,77 +94,45 @@ github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmV
 github.com/armon/go-metrics v0.0.0-20190430140413-ec5e00d3c878/go.mod h1:3AMJUQhVx52RsWOnlkpikZr01T/yAVN2gn0861vByNg=
 github.com/armon/go-metrics v0.3.0 h1:B7AQgHi8QSEi4uHu7Sbsga+IJDU+CENgjxoo81vDUqU=
 github.com/armon/go-metrics v0.3.0/go.mod h1:zXjbSimjXTd7vOpY8B0/2LpvNvDoXBuplAD+gJD3GYs=
-github.com/armon/go-metrics v0.3.4 h1:Xqf+7f2Vhl9tsqDYmXhnXInUdcrtgpRNpIA15/uldSc=
-github.com/armon/go-metrics v0.3.4/go.mod h1:4O98XIr/9W0sxpJ8UaYkvjk10Iff7SnFrb4QAOwNTFc=
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
 github.com/armon/go-radix v1.0.0 h1:F4z6KzEeeQIMeLFa97iZU6vupzoecKdU5TX24SNppXI=
 github.com/armon/go-radix v1.0.0/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
-github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
 github.com/aryann/difflib v0.0.0-20170710044230-e206f873d14a/go.mod h1:DAHtR1m6lCRdSC2Tm3DSWRPvIPr6xNKyeHdqDQSQT+A=
 github.com/aws/aws-lambda-go v1.13.3/go.mod h1:4UKl9IzQMoD+QF79YdCuzCwp8VbmG4VAQwij/eHl5CU=
-github.com/aws/aws-sdk-go v1.23.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
-github.com/aws/aws-sdk-go v1.25.37/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.25.41/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.27.0 h1:0xphMHGMLBrPMfxR2AmVjZKcMEESEgWF8Kru94BNByk=
 github.com/aws/aws-sdk-go v1.27.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go-v2 v0.18.0/go.mod h1:JWVYvqSMppoMJC0x5wdwiImzgXTI9FuZwxzkQq9wy+g=
-github.com/baiyubin/aliyun-sts-go-sdk v0.0.0-20180326062324-cfa1a18b161f/go.mod h1:AuiFmCCPBSrqvVMvuqFuk0qogytodnVFVSN5CeJB8Gc=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/bgentry/speakeasy v0.1.0 h1:ByYyxL9InA1OWqxJqqp2A5pYHUrCiAL6K3J+LKSsQkY=
 github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
-github.com/bitly/go-simplejson v0.5.0/go.mod h1:cXHtHw4XUPsvGaxgjIAn8PhEWG9NfngEKAMDJEczWVA=
 github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJmJgSg28kpZDP6UIiPt0e0Oz0kqKNGyRaWEPv84=
-github.com/blang/semver v3.1.0+incompatible/go.mod h1:kRBLl5iJ+tD4TcOOxsy/0fnwebNt5EWlYSAyrTnjyyk=
-github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869/go.mod h1:Ekp36dRnpXw/yCqJaO+ZrUyxD+3VXMFFr56k5XYrpB4=
 github.com/boltdb/bolt v1.3.1 h1:JQmyP4ZBrce+ZQu0dY660FMfatumYDLun9hBCUVIkF4=
 github.com/boltdb/bolt v1.3.1/go.mod h1:clJnj/oiGkjum5o1McbSZDSLxVThjynRyGBgiAx27Ps=
 github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23 h1:D21IyuvjDCshj1/qq+pCNd3VZOAEI9jy6Bi131YlXgI=
 github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23/go.mod h1:bbYlZJ7hK1yFx9hf58LP0zeX7UjIGs20ufpu3evjr+s=
-github.com/bwmarrin/discordgo v0.20.2/go.mod h1:O9S4p+ofTFwB02em7jkpkV8M3R0/PUVOwN61zSZ0r4Q=
-github.com/caddyserver/certmagic v0.10.6/go.mod h1:Y8jcUBctgk/IhpAzlHKfimZNyXCkfGgRTC0orl8gROQ=
 github.com/casbin/casbin/v2 v2.1.2/go.mod h1:YcPU1XXisHhLzuxH9coDNf2FbKpjGlbCg3n9yuLkIJQ=
 github.com/cenkalti/backoff v2.2.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
-github.com/cenkalti/backoff/v4 v4.0.0/go.mod h1:eEew/i+1Q6OrCDZh3WiXYv3+nJwBASZ8Bog/87DQnVg=
-github.com/census-instrumentation/opencensus-proto v0.2.0/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
-github.com/census-instrumentation/opencensus-proto v0.2.1 h1:glEXhBS5PSLLv4IXzLA5yPRVX4bilULVyxxbrfOtDAk=
-github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/cheekybits/genny v1.0.0/go.mod h1:+tQajlRqAUrPI7DOSpB0XAqZYtQakVtB7wXkRAgjxjQ=
 github.com/circonus-labs/circonus-gometrics v2.3.1+incompatible h1:C29Ae4G5GtYyYMm1aztcyj/J5ckgJm2zwdDajFbx1NY=
 github.com/circonus-labs/circonus-gometrics v2.3.1+incompatible/go.mod h1:nmEj6Dob7S7YxXgwXpfOuvO54S+tGdZdw9fuRZt25Ag=
 github.com/circonus-labs/circonusllhist v0.1.3 h1:TJH+oke8D16535+jHExHj4nQvzlZrj7ug5D7I/orNUA=
 github.com/circonus-labs/circonusllhist v0.1.3/go.mod h1:kMXHVDlOchFAehlya5ePtbp5jckzBHf4XRpQvBOLI+I=
 github.com/clbanning/x2j v0.0.0-20191024224557-825249438eec/go.mod h1:jMjuTZXRI4dUb/I5gc9Hdhagfvm9+RyrPryS/auMzxE=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/cloudflare/cloudflare-go v0.10.2/go.mod h1:qhVI5MKwBGhdNU89ZRz2plgYutcJ5PCekLxXn56w6SY=
-github.com/cncf/udpa/go v0.0.0-20200313221541-5f7e5dd04533 h1:8wZizuKuZVu5COB7EsBYxBQz8nRcXXn5d4Gt91eJLvU=
-github.com/cncf/udpa/go v0.0.0-20200313221541-5f7e5dd04533/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
 github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMeY4+DwBQ=
 github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
 github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI=
-github.com/containerd/cgroups v0.0.0-20190919134610-bf292b21730f/go.mod h1:OApqhQ4XNSNC13gXIwDjhOQxjWa/NxkwZXJ1EvqT0ko=
-github.com/containerd/console v0.0.0-20180822173158-c12b1e7919c1/go.mod h1:Tj/on1eG8kiEhd0+fhSDzsPAFESxzBBvdyEgyryXffw=
-github.com/containerd/containerd v1.3.0-beta.2.0.20190828155532-0293cbd26c69/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
-github.com/containerd/containerd v1.3.0/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
-github.com/containerd/continuity v0.0.0-20190426062206-aaeac12a7ffc/go.mod h1:GL3xCUCBDV3CZiTSEKksMWbLE66hEyuu9qyDOOqM47Y=
-github.com/containerd/fifo v0.0.0-20190226154929-a9fb20d87448/go.mod h1:ODA38xgv3Kuk8dQz2ZQXpnv/UZZUHUCL7pnLehbXgQI=
-github.com/containerd/go-runc v0.0.0-20180907222934-5a6d9f37cfa3/go.mod h1:IV7qH3hrUgRmyYrtgEeGWJfWbgcHL9CSRruz2Vqcph0=
-github.com/containerd/ttrpc v0.0.0-20190828154514-0e0f228740de/go.mod h1:PvCDdDGpgqzQIzDW1TphrGLssLDZp2GuS+X5DkEJB8o=
-github.com/containerd/typeurl v0.0.0-20180627222232-a93fcdb778cd/go.mod h1:Cm3kwCdlkCfMSHURc+r6fwoGH6/F1hH3S4sg0rLFWPc=
 github.com/coredns/coredns v1.1.2 h1:bAFHrSsBeTeRG5W3Nf2su3lUGw7Npw2UKeCJm/3A638=
 github.com/coredns/coredns v1.1.2/go.mod h1:zASH/MVDgR6XZTbxvOnsZfffS+31vg6Ackf/wo1+AM0=
-github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
-github.com/coreos/bbolt v1.3.3 h1:n6AiVyVRKQFNb6mJlwESEvvLoDyiTzXX7ORAUlkeBdY=
-github.com/coreos/bbolt v1.3.3/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
-github.com/coreos/etcd v3.3.18+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/etcd v3.3.25+incompatible h1:0GQEw6h3YnuOVdtwygkIfJ+Omx0tZ8/QkVyXI4LkbeY=
 github.com/coreos/etcd v3.3.25+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
@@ -196,18 +142,14 @@ github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3Ee
 github.com/coreos/go-semver v0.3.0 h1:wkHLiw0WNATZnSG7epLsujiMCgPAc9xhjJ4tgnAxmfM=
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
+github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e h1:Wf6HqHfScWJN9/ZjdUKyjop4mf3Qdd+1TvvltAvM3m8=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
-github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f h1:JOrtw2xFKzlg+cbHpyrpLDmnN1HqhBfnX7WDiW7eG2c=
-github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/pkg v0.0.0-20160727233714-3ac0863d7acf/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f h1:lBNOc5arjvs8E5mO2tbpBpLoyyu8B6e44T7hJy6potg=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
-github.com/cpu/goacmedns v0.0.1/go.mod h1:sesf/pNnCYwUevQEQfEwY0Y3DydlQWSGZbaMElOWxok=
 github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
-github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
-github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/creasty/defaults v1.5.1 h1:j8WexcS3d/t4ZmllX4GEkl4wIB/trOr035ajcLHCISM=
 github.com/creasty/defaults v1.5.1/go.mod h1:FPZ+Y0WNrbqOVw+c6av63eyHUAl6pMHZwqLPvXUZGfY=
 github.com/davecgh/go-spew v0.0.0-20151105211317-5215b55f46b2/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -224,22 +166,19 @@ github.com/digitalocean/godo v1.10.0 h1:uW1/FcvZE/hoixnJcnlmIUvTVNdZCLjRLzmDtRi1
 github.com/digitalocean/godo v1.10.0/go.mod h1:h6faOIcZ8lWIwNQ+DN7b3CgX4Kwby5T+nbpNqkUIozU=
 github.com/dimchansky/utfbom v1.1.0 h1:FcM3g+nofKgUteL8dm/UpdRXNC9KmADgTpLKsu0TRo4=
 github.com/dimchansky/utfbom v1.1.0/go.mod h1:rO41eb7gLfo8SF1jd9F8HplJm1Fewwi4mQvIirEdv+8=
-github.com/dnaeon/go-vcr v0.0.0-20180814043457-aafff18a5cc2/go.mod h1:aBB1+wY4s93YsC3HHjMBMrwTj2R9FHDzUr9KyGc8n1E=
 github.com/dnaeon/go-vcr v1.0.1 h1:r8L/HqC0Hje5AXMu1ooW8oyQyOFv4GxqpL0nRP7SLLY=
 github.com/dnaeon/go-vcr v1.0.1/go.mod h1:aBB1+wY4s93YsC3HHjMBMrwTj2R9FHDzUr9KyGc8n1E=
-github.com/dnsimple/dnsimple-go v0.30.0/go.mod h1:O5TJ0/U6r7AfT8niYNlmohpLbCSG+c71tQlGr9SeGrg=
-github.com/docker/distribution v2.7.1+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
-github.com/docker/docker v1.4.2-0.20191101170500-ac7306503d23/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
+github.com/docker/go-connections v0.3.0 h1:3lOnM9cSzgGwx8VfK/NGOW5fLQ0GjIlCkaktF+n1M6o=
 github.com/docker/go-connections v0.3.0/go.mod h1:Gbd7IOopHjR8Iph03tsViu4nIes5XhDvyHbTtUxmeec=
-github.com/docker/go-connections v0.4.0 h1:El9xVISelRB7BuFusrZozjnkIM5YnzCViNKohAFqRJQ=
-github.com/docker/go-connections v0.4.0/go.mod h1:Gbd7IOopHjR8Iph03tsViu4nIes5XhDvyHbTtUxmeec=
-github.com/docker/go-units v0.4.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
 github.com/docker/spdystream v0.0.0-20160310174837-449fdfce4d96/go.mod h1:Qh8CwZgvJUkLughtfhJv5dyTYa91l1fOUCrgjqmcifM=
 github.com/dubbogo/go-zookeeper v1.0.2 h1:xmEnPL8SlCe3/+J5ZR9e8qE35LmFVYe8VVpDakjNM4A=
 github.com/dubbogo/go-zookeeper v1.0.2/go.mod h1:fn6n2CAEer3novYgk9ULLwAjuV8/g4DdC2ENwRb6E+c=
 github.com/dubbogo/gost v1.9.0/go.mod h1:pPTjVyoJan3aPxBPNUX0ADkXjPibLo+/Ib0/fADXSG8=
-github.com/dubbogo/gost v1.9.5 h1:UeG4y0O55lR3dzgdmCm/7bMWvpKrlpR7fsfKjrcXq/g=
-github.com/dubbogo/gost v1.9.5/go.mod h1:QNM5RaeRdNWehUu8S0hUP5Qa8QUfGf6KH1JhqOVFvEI=
+github.com/dubbogo/gost v1.10.1 h1:39kF9Cd5JOiMpmwG6dX1/aLWNFqFv9gHp8HrhzMmjLY=
+github.com/dubbogo/gost v1.10.1/go.mod h1:+mQGS51XQEUWZP2JeGZTxJwipjRKtJO7Tr+FOg+72rI=
+github.com/dubbogo/gost v1.11.0 h1:9KtyWQz1gMlAfwzen5iyhMdoe08SPBBUVhco4rdgJ9I=
+github.com/dubbogo/gost v1.11.0/go.mod h1:w8Yw29eDWtRVo3tx9nPpHkNZnOi4SRx1fZf7eVlAAU4=
+github.com/dubbogo/jsonparser v1.0.1/go.mod h1:tYAtpctvSP/tWw4MeelsowSPgXQRVHHWbqL6ynps8jU=
 github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
@@ -247,7 +186,6 @@ github.com/eapache/go-resiliency v1.1.0/go.mod h1:kFI+JgMyC7bLPUVY133qvEBtVayf5m
 github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1:+020luEh2TKB4/GOp8oxxtq0Daoen/Cii55CzbTV6DU=
 github.com/eapache/queue v1.1.0/go.mod h1:6eCeP0CKFpHLu8blIFXhExK/dRa7WDZfr6jVFPTqq+I=
 github.com/edsrzf/mmap-go v1.0.0/go.mod h1:YO35OhQPt3KJa3ryjFM5Bs14WD66h8eGKpfaBNrHW5M=
-github.com/ef-ds/deque v1.0.4-0.20190904040645-54cb57c252a1/go.mod h1:HvODWzv6Y6kBf3Ah2WzN1bHjDUezGLaAhwuWVwfpEJs=
 github.com/elazarl/go-bindata-assetfs v0.0.0-20160803192304-e1a2a7ec64b0/go.mod h1:v+YaWX3bdea5J/mo8dSETolEo7R71Vk1u8bnjau5yw4=
 github.com/elazarl/go-bindata-assetfs v1.0.0 h1:G/bYguwHIzWq9ZoyUQqrjTmJbbYn3j3CKKpKinvZLFk=
 github.com/elazarl/go-bindata-assetfs v1.0.0/go.mod h1:v+YaWX3bdea5J/mo8dSETolEo7R71Vk1u8bnjau5yw4=
@@ -256,60 +194,42 @@ github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633 h1:H2pdYOb3KQ1
 github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
 github.com/emicklei/go-restful/v3 v3.4.0 h1:IIDhql3oyWZj1ay2xBZGb4sTOWMad0HVW8rwhVxN/Yk=
 github.com/emicklei/go-restful/v3 v3.4.0/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
-github.com/emirpasic/gods v1.12.0/go.mod h1:YfzfFFoVP/catgzJb4IKIqXjX78Ha8FMSDh3ymbK86o=
-github.com/envoyproxy/go-control-plane v0.6.9/go.mod h1:SBwIajubJHhxtWwsL9s8ss4safvEdbitLhGGK48rN6g=
-github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
-github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
-github.com/envoyproxy/go-control-plane v0.9.5 h1:lRJIqDD8yjV1YyPRqecMdytjDLs2fTXq363aCib5xPU=
-github.com/envoyproxy/go-control-plane v0.9.5/go.mod h1:OXl5to++W0ctG+EHWTFUjiypVxC/Y4VLc/KFU+al13s=
+github.com/envoyproxy/go-control-plane v0.8.0 h1:uE6Fp4fOcAJdc1wTQXLJ+SYistkbG1dNoi6Zs1+Ybvk=
+github.com/envoyproxy/go-control-plane v0.8.0/go.mod h1:GSSbY9P1neVhdY7G4wu+IK1rk/dqhiCC/4ExuWJZVuk=
+github.com/envoyproxy/protoc-gen-validate v0.0.14/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/envoyproxy/protoc-gen-validate v0.1.0 h1:EQciDnbrYxy13PgWoY8AqoxGiPrpgBZ1R8UNe3ddc+A=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/evanphx/json-patch v4.2.0+incompatible h1:fUDGZCv/7iAN7u0puUVhvKCcsR6vRfwrJatElLBEf0I=
 github.com/evanphx/json-patch v4.2.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
-github.com/evanphx/json-patch/v5 v5.0.0/go.mod h1:G79N1coSVB93tBe7j6PhzjmR3/2VvlbKOFpnXhI9Bw4=
-github.com/exoscale/egoscale v0.18.1/go.mod h1:Z7OOdzzTOz1Q1PjQXumlz9Wn/CddH0zSYdCF3rnBKXE=
 github.com/fastly/go-utils v0.0.0-20180712184237-d95a45783239 h1:Ghm4eQYC0nEPnSJdVkTrXpu9KtoVCSo1hg7mtI7G9KU=
 github.com/fastly/go-utils v0.0.0-20180712184237-d95a45783239/go.mod h1:Gdwt2ce0yfBxPvZrHkprdPPTTS3N5rwmLE8T22KBXlw=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fatih/color v1.9.0 h1:8xPHl4/q1VyqGIPif1F+1V3Y3lSmrq01EabUW3CoW5s=
 github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
 github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
-github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
-github.com/forestgiant/sliceutil v0.0.0-20160425183142-94783f95db6c/go.mod h1:pFdJbAhRf7rh6YYMUdIQGyzne6zYL1tCUW8QV2B3UfY=
 github.com/franela/goblin v0.0.0-20200105215937-c9ffbefa60db/go.mod h1:7dvUGVsVBjqR7JHJk0brhHOZYGmfBYOrK0ZhYMEtBr4=
 github.com/franela/goreq v0.0.0-20171204163338-bcd34c9993f8/go.mod h1:ZhphrRTfi2rbfLwlschooIH4+wKKDR4Pdxhh+TRoA20=
-github.com/frankban/quicktest v1.11.1 h1:stwUsXhUGliQs9t0ZS39BWCltFdOHgABiIlihop8AD4=
-github.com/frankban/quicktest v1.11.1/go.mod h1:K+q6oSqb0W0Ininfk863uOk1lMy69l/P6txr3mVT54s=
+github.com/frankban/quicktest v1.4.1 h1:Wv2VwvNn73pAdFIVUQRXYDFp31lXKbqblIXo/Q5GPSg=
+github.com/frankban/quicktest v1.4.1/go.mod h1:36zfPVQyHxymz4cH7wlDmVwDrJuljRB60qkgn7rorfQ=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
-github.com/fsouza/go-dockerclient v1.6.0/go.mod h1:YWwtNPuL4XTX1SKJQk86cWPmmqwx+4np9qfPbb+znGc=
 github.com/ghodss/yaml v0.0.0-20150909031657-73d445a93680/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
-github.com/gin-gonic/gin v1.5.0/go.mod h1:Nd6IXA8m5kNZdNEHMBd93KT+mdY3+bewLgRvmCsR2Do=
-github.com/gliderlabs/ssh v0.2.2/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
 github.com/glycerine/go-unsnap-stream v0.0.0-20181221182339-f9677308dec2 h1:Ujru1hufTHVb++eG6OuNDKMxZnGIvF6o/u8q/8h2+I4=
 github.com/glycerine/go-unsnap-stream v0.0.0-20181221182339-f9677308dec2/go.mod h1:/20jfyN9Y5QPEAprSgKAUr+glWDY39ZiUEAYOEv5dsE=
 github.com/glycerine/goconvey v0.0.0-20190410193231-58a59202ab31 h1:gclg6gY70GLy3PbkQ1AERPfmLMMagS60DKF78eWwLn8=
 github.com/glycerine/goconvey v0.0.0-20190410193231-58a59202ab31/go.mod h1:Ogl1Tioa0aV7gstGFO7KhffUsb9M4ydbEbbxpcEDc24=
-github.com/go-acme/lego/v3 v3.4.0/go.mod h1:xYbLDuxq3Hy4bMUT1t9JIuz6GWIWb3m5X+TeTHYaT7M=
 github.com/go-asn1-ber/asn1-ber v1.3.1/go.mod h1:hEBeB/ic+5LoWskz+yKT7vGhhPYkProFKoKdwZRWMe0=
-github.com/go-cmd/cmd v1.0.5/go.mod h1:y8q8qlK5wQibcw63djSl/ntiHUHXHGdCkPk0j4QeW4s=
 github.com/go-co-op/gocron v0.1.1 h1:OfDmkqkCguFtFMsm6Eaayci3DADLa8pXvdmOlPU/JcU=
 github.com/go-co-op/gocron v0.1.1/go.mod h1:Y9PWlYqDChf2Nbgg7kfS+ZsXHDTZbMZYPEQ0MILqH+M=
 github.com/go-errors/errors v1.0.1 h1:LUHzmkK3GUKUrL/1gfBUxAHzcev3apQlezX/+O7ma6w=
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
-github.com/go-git/gcfg v1.5.0/go.mod h1:5m20vg6GwYabIxaOonVkTdrILxQMpEShl1xiMF4ua+E=
-github.com/go-git/go-billy/v5 v5.0.0/go.mod h1:pmpqyWchKfYfrkb/UVH4otLvyi/5gJlGI4Hb3ZqZ3W0=
-github.com/go-git/go-git-fixtures/v4 v4.0.1/go.mod h1:m+ICp2rF3jDhFgEZ/8yziagdT1C+ZpZcrJjappBCDSw=
-github.com/go-git/go-git/v5 v5.1.0/go.mod h1:ZKfuPUoY1ZqIG4QG9BDBh3G4gLM5zvPuSJAozQrZuyM=
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
-github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
-github.com/go-ini/ini v1.44.0/go.mod h1:ByCAeIL28uOIIG0E3PJtZPDL8WnHpFKFOtgjp+3Ies8=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.10.0/go.mod h1:xUsJbQ/Fp4kEt7AFgCuvyX4a71u8h9jB8tj/ORgOZ7o=
+github.com/go-ldap/ldap v3.0.2+incompatible/go.mod h1:qfd9rJvER9Q0/D/Sqn1DfHRoBp40uXYvFoEVrNEPqRc=
 github.com/go-ldap/ldap/v3 v3.1.3/go.mod h1:3rbOH3jRS2u6jg2rJnKAMLE/xQyCKIveG2Sa/Cohzb8=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
@@ -322,38 +242,28 @@ github.com/go-openapi/jsonpointer v0.0.0-20160704185906-46af16f9f7b1/go.mod h1:+
 github.com/go-openapi/jsonreference v0.0.0-20160704190145-13c6e3589ad9/go.mod h1:W3Z9FmVs9qj+KR4zFKmDPGiLdk1D9Rlm7cyMvf57TTg=
 github.com/go-openapi/spec v0.0.0-20160808142527-6aced65f8501/go.mod h1:J8+jY1nAiCcj+friV/PDoE1/3eeccG9LYBs0tYvLOWc=
 github.com/go-openapi/swag v0.0.0-20160704191624-1d0bd113de87/go.mod h1:DXUve3Dpr1UfpPtxFw+EFuQ41HhCWZfha5jSVRG7C7I=
-github.com/go-playground/locales v0.12.1/go.mod h1:IUMDtCfWo/w/mtMfIE/IG2K+Ey3ygWanZIBtBW0W2TM=
-github.com/go-playground/universal-translator v0.16.0/go.mod h1:1AnU7NaIRDWWzGEKwgtJRd2xk99HeFyHw3yid4rvQIY=
 github.com/go-redis/redis v6.15.5+incompatible/go.mod h1:NAIEuMOZ/fxfXJIrKDQDz8wamY7mA7PouImQ2Jvg6kA=
 github.com/go-resty/resty/v2 v2.3.0 h1:JOOeAvjSlapTT92p8xiS19Zxev1neGikoHsXJeOq8So=
 github.com/go-resty/resty/v2 v2.3.0/go.mod h1:UpN9CgLZNsv4e9XG50UU8xdI0F43UQ4HmxLBDwaroHU=
 github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
-github.com/go-telegram-bot-api/telegram-bot-api v4.6.4+incompatible/go.mod h1:qf9acutJ8cwBUhm1bqgz6Bei9/C/c93FPDljKWwsOgM=
 github.com/go-test/deep v1.0.2-0.20181118220953-042da051cf31/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
 github.com/go-test/deep v1.0.2 h1:onZX1rnHT3Wv6cqNgYyFOOlgVKJrksuCMCRvJStbMYw=
 github.com/go-test/deep v1.0.2/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
-github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee/go.mod h1:L0fX3K22YWvt/FAX9NnzrNzcI4wNYi9Yku4O0LKYflo=
-github.com/gobwas/pool v0.2.0/go.mod h1:q8bcK0KcYlCgd9e7WYLm9LpyS+YeLd8JVDW6WezmKEw=
-github.com/gobwas/ws v1.0.3/go.mod h1:szmBTxLgaFppYjEmNtny/v3w89xOydFnnZMcgRRu/EM=
-github.com/godbus/dbus v0.0.0-20190422162347-ade71ed3457e/go.mod h1:bBOAhwG1umN6/6ZUMtDFBMQR8jRg9O75tm9K00oMsK4=
-github.com/gofrs/uuid v3.2.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/gogo/googleapis v1.1.0 h1:kFkMAZBNAn4j7K0GiZr8cRYzejq68VbheufiV3YuyFI=
 github.com/gogo/googleapis v1.1.0/go.mod h1:gf4bu3Q80BeJ6H1S1vYPm8/ELATdvryBaNFGgqEef3s=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/gogo/protobuf v1.2.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
+github.com/gogo/protobuf v1.2.2-0.20190723190241-65acae22fc9d h1:3PaI8p3seN09VjbTYC/QWlUZdZ1qS1zGjy7LH2Wt07I=
 github.com/gogo/protobuf v1.2.2-0.20190723190241-65acae22fc9d/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
-github.com/gogo/protobuf v1.3.1 h1:DqDEcV5aeaTmdFBePNpYsp3FlcVH/2ISVVM9Qf8PSls=
-github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
 github.com/goji/httpauth v0.0.0-20160601135302-2da839ab0f4d/go.mod h1:nnjvkQ9ptGaCkuDUx6wNykzzlUixGxvkme+H/lnzb+A=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
+github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6 h1:ZgQEtGgCBiWRM39fZuwSd1LwSqqSW0hOdXCYYDX0R3I=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
-github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e h1:1r7pUrabqp18hOBcwBwiTsbnFeTZHV9eER/QT5JVZxY=
-github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/mock v1.3.1/go.mod h1:sBzyDLLjw3U8JLTeZvSv8jJB+tU5PVekmnlKIyFUx0Y=
@@ -361,10 +271,8 @@ github.com/golang/mock v1.4.4 h1:l75CXGRSwbaYNpl/Z2X1XIIAMSCquvXgpVZDhwEIJsc=
 github.com/golang/mock v1.4.4/go.mod h1:l3mdAwkq5BuhzHwde/uurv3sEJeZMXNpwsxVWU71h+4=
 github.com/golang/protobuf v0.0.0-20161109072736-4bd1920723d7/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.3.0/go.mod h1:Qd/q+1AKNOZr9uGQzbzCmRO6sUih6GTPZv6a1/R87v0=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.3.5/go.mod h1:6O5/vntMXwX2lRkT1hjjk0nAC1IDOTvTlVgjlRvqsdk=
 github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
 github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
 github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
@@ -384,8 +292,6 @@ github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0 h1:xsAVV57WRhGj6kEIi8ReJzQlHHqcBYCElAvkovg3B/4=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/go-cmp v0.5.2 h1:X2ev0eStA3AbceY54o37/0PQ/UWqKEiiO2dKL5OPaFM=
-github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-querystring v0.0.0-20170111101155-53e6ce116135/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
 github.com/google/go-querystring v1.0.0 h1:Xkwi/a1rcvNg1PPYe5vI8GbeBY/jrVuDX5ASuANWTrk=
 github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
@@ -407,49 +313,39 @@ github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5m
 github.com/googleapis/gnostic v0.0.0-20170729233727-0c5108395e2d/go.mod h1:sJBsCZ4ayReDTBIg8b9dl28c5xFWyhBTVRp3pOg5EKY=
 github.com/googleapis/gnostic v0.2.0 h1:l6N3VoaVzTncYYW+9yOz2LJJammFZGBO13sqgEhpy9g=
 github.com/googleapis/gnostic v0.2.0/go.mod h1:sJBsCZ4ayReDTBIg8b9dl28c5xFWyhBTVRp3pOg5EKY=
+github.com/gophercloud/gophercloud v0.1.0 h1:P/nh25+rzXouhytV2pUHBb65fnds26Ghl8/391+sT5o=
 github.com/gophercloud/gophercloud v0.1.0/go.mod h1:vxM41WHh5uqHVBMZHzuwNOHh8XEoIEcSTewFxm1c5g8=
-github.com/gophercloud/gophercloud v0.3.0 h1:6sjpKIpVwRIIwmcEGp+WwNovNsem+c+2vm6oxshRpL8=
-github.com/gophercloud/gophercloud v0.3.0/go.mod h1:vxM41WHh5uqHVBMZHzuwNOHh8XEoIEcSTewFxm1c5g8=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gopherjs/gopherjs v0.0.0-20190910122728-9d188e94fb99 h1:twflg0XRTjwKpxb/jFExr4HGq6on2dEOmnL6FV+fgPw=
 github.com/gopherjs/gopherjs v0.0.0-20190910122728-9d188e94fb99/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gorilla/context v1.1.1/go.mod h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51q0aT7Yg=
-github.com/gorilla/handlers v1.4.2/go.mod h1:Qkdc/uu4tH4g6mTK6auzZ766c4CA0Ng8+o/OAirnOIQ=
 github.com/gorilla/mux v1.6.2/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
 github.com/gorilla/mux v1.7.3/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
 github.com/gorilla/websocket v0.0.0-20170926233335-4201258b820c/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
-github.com/gorilla/websocket v1.2.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
 github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
-github.com/gorilla/websocket v1.4.1/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
 github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/gregjones/httpcache v0.0.0-20180305231024-9cad4c3443a7/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
 github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
+github.com/grpc-ecosystem/go-grpc-middleware v1.0.1-0.20190118093823-f849b5445de4 h1:z53tR0945TRRQO/fLEVPI6SMv7ZflF0TEaTAoU7tOzg=
 github.com/grpc-ecosystem/go-grpc-middleware v1.0.1-0.20190118093823-f849b5445de4/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
-github.com/grpc-ecosystem/go-grpc-middleware v1.1.0 h1:THDBEeQ9xZ8JEaCLyLQqXMMdRqNr0QAUJTIkQAUtFjg=
-github.com/grpc-ecosystem/go-grpc-middleware v1.1.0/go.mod h1:f5nM7jw/oeRSadq3xCzHAvxcr8HZnzsqU6ILg/0NiiE=
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 h1:Ovs26xHkKqVztRpIrF/92BcuyuQ/YW4NSIpoGtfXNho=
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
-github.com/grpc-ecosystem/grpc-gateway v1.8.5/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
 github.com/grpc-ecosystem/grpc-gateway v1.9.0/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
 github.com/grpc-ecosystem/grpc-gateway v1.9.5 h1:UImYN5qQ8tuGpGE16ZmjvcTtTw24zw1QAp/SlnNrZhI=
 github.com/grpc-ecosystem/grpc-gateway v1.9.5/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
 github.com/grpc-ecosystem/grpc-opentracing v0.0.0-20180507213350-8e809c8a8645 h1:MJG/KsmcqMwFAkh8mTnAwhyKoB+sTAnY4CACC110tbU=
 github.com/grpc-ecosystem/grpc-opentracing v0.0.0-20180507213350-8e809c8a8645/go.mod h1:6iZfnjpejD4L/4DwD7NryNaJyCQdzwWwH2MWhCA90Kw=
-github.com/h2non/parth v0.0.0-20190131123155-b4df798d6542/go.mod h1:Ow0tF8D4Kplbc8s8sSb3V2oUCygFHVp8gC3Dn6U4MNI=
-github.com/hashicorp/consul v1.8.7 h1:PKZTnFLBc0cpdkD0QV1DCQ9+AbW/QWKfBuWHRGJ7Uq8=
-github.com/hashicorp/consul v1.8.7/go.mod h1:bNsHf1jYs36NJLuxmtMovGelihVDYBNm+0xifkufuPI=
+github.com/hashicorp/consul v1.8.0 h1:yRKMKZyPLqUxl37t4nFt5OuGmTXoFhTJrakhfnYKCYA=
+github.com/hashicorp/consul v1.8.0/go.mod h1:Gg9/UgAQ9rdY3CTvzQZ6g2jcIb7NlIfjI+0pvLk5D1A=
 github.com/hashicorp/consul/api v1.1.0/go.mod h1:VmuI/Lkw1nC05EYQWNKwWGbkg+FbDBtguAZLlVdkD9Q=
 github.com/hashicorp/consul/api v1.3.0/go.mod h1:MmDNSzIMUjNpY/mQ398R4bk2FnqQLoPndWW5VkKPlCE=
-github.com/hashicorp/consul/api v1.4.0/go.mod h1:xc8u05kyMa3Wjr9eEAsIAo3dg8+LywT5E/Cl7cNS5nU=
-github.com/hashicorp/consul/api v1.7.0 h1:tGs8Oep67r8CcA2Ycmb/8BLBcJ70St44mF2X10a/qPg=
-github.com/hashicorp/consul/api v1.7.0/go.mod h1:1NSuaUUkFaJzMasbfq/11wKYWSR67Xn6r2DXKhuDNFg=
+github.com/hashicorp/consul/api v1.5.0 h1:Yo2bneoGy68A7aNwmuETFnPhjyBEm7n3vzRacEVMjvI=
+github.com/hashicorp/consul/api v1.5.0/go.mod h1:LqwrLNW876eYSuUOo4ZLHBcdKc038txr/IMfbLPATa4=
 github.com/hashicorp/consul/sdk v0.1.1/go.mod h1:VKf9jXwCTEY1QZP2MOLRhb5i/I/ssyNV1vwHyQBF0x8=
 github.com/hashicorp/consul/sdk v0.3.0/go.mod h1:VKf9jXwCTEY1QZP2MOLRhb5i/I/ssyNV1vwHyQBF0x8=
-github.com/hashicorp/consul/sdk v0.4.0/go.mod h1:fY08Y9z5SvJqevyZNy6WWPXiG3KwBPAvlcdx16zZ0fM=
-github.com/hashicorp/consul/sdk v0.6.0 h1:FfhMEkwvQl57CildXJyGHnwGGM4HMODGyfjGwNM1Vdw=
-github.com/hashicorp/consul/sdk v0.6.0/go.mod h1:fY08Y9z5SvJqevyZNy6WWPXiG3KwBPAvlcdx16zZ0fM=
-github.com/hashicorp/errwrap v0.0.0-20141028054710-7554cd9344ce/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
+github.com/hashicorp/consul/sdk v0.5.0 h1:WC4594Wp/LkEeML/OdQKEC1yqBmEYkRp6i7X5u0zDAs=
+github.com/hashicorp/consul/sdk v0.5.0/go.mod h1:fY08Y9z5SvJqevyZNy6WWPXiG3KwBPAvlcdx16zZ0fM=
 github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
 github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
 github.com/hashicorp/go-bexpr v0.1.2 h1:ijMXI4qERbzxbCnkxmfUtwMyjrrk3y+Vt0MxojNCbBs=
@@ -463,6 +359,7 @@ github.com/hashicorp/go-connlimit v0.2.0/go.mod h1:OUj9FGL1tPIhl/2RCfzYHrIiWj+VV
 github.com/hashicorp/go-discover v0.0.0-20200501174627-ad1e96bde088 h1:jBvElOilnIl6mm8S6gva/dfeTJCcMs9TGO6/2C6k52E=
 github.com/hashicorp/go-discover v0.0.0-20200501174627-ad1e96bde088/go.mod h1:vZu6Opqf49xX5lsFAu7iFNewkcVF1sn/wyapZh5ytlg=
 github.com/hashicorp/go-hclog v0.0.0-20180709165350-ff2cf002a8dd/go.mod h1:9bjs9uLqI8l75knNv3lV1kA55veR+WUPSiKIWcQHudI=
+github.com/hashicorp/go-hclog v0.8.0/go.mod h1:5CU+agLiy3J7N7QjHK5d05KxGsuXiQLrjA0H7acj2lQ=
 github.com/hashicorp/go-hclog v0.9.1/go.mod h1:5CU+agLiy3J7N7QjHK5d05KxGsuXiQLrjA0H7acj2lQ=
 github.com/hashicorp/go-hclog v0.9.2/go.mod h1:5CU+agLiy3J7N7QjHK5d05KxGsuXiQLrjA0H7acj2lQ=
 github.com/hashicorp/go-hclog v0.12.0 h1:d4QkX8FRTYaKaCZBoXYY8zJX2BXjWxurN/GA2tkrmZM=
@@ -470,15 +367,11 @@ github.com/hashicorp/go-hclog v0.12.0/go.mod h1:whpDNt7SSdeAju8AWKIWsul05p54N/39
 github.com/hashicorp/go-immutable-radix v1.0.0/go.mod h1:0y9vanUI8NX6FsYoO3zeMjhV/C5i9g4Q3DwcSNZ4P60=
 github.com/hashicorp/go-immutable-radix v1.1.0 h1:vN9wG1D6KG6YHRTWr8512cxGOVgTMEfgEdSj/hr8MPc=
 github.com/hashicorp/go-immutable-radix v1.1.0/go.mod h1:0y9vanUI8NX6FsYoO3zeMjhV/C5i9g4Q3DwcSNZ4P60=
-github.com/hashicorp/go-immutable-radix v1.2.0 h1:l6UW37iCXwZkZoAbEYnptSHVE/cQ5bOTPYG5W3vf9+8=
-github.com/hashicorp/go-immutable-radix v1.2.0/go.mod h1:0y9vanUI8NX6FsYoO3zeMjhV/C5i9g4Q3DwcSNZ4P60=
-github.com/hashicorp/go-kms-wrapping/entropy v0.1.0/go.mod h1:d1g9WGtAunDNpek8jUIEJnBlbgKS1N2Q61QkHiZyR1g=
 github.com/hashicorp/go-memdb v1.0.3 h1:iiqzNk8jKB6/sLRj623Ui/Vi1zf21LOUpgzGjTge6a8=
 github.com/hashicorp/go-memdb v1.0.3/go.mod h1:LWQ8R70vPrS4OEY9k28D2z8/Zzyu34NVzeRibGAzHO0=
 github.com/hashicorp/go-msgpack v0.5.3/go.mod h1:ahLV/dePpqEmjfWmKiqvPkv/twdG7iPBM1vqhUKIvfM=
 github.com/hashicorp/go-msgpack v0.5.5 h1:i9R9JSrqIz0QVLz3sz+i3YJdT7TTSLcfLLzJi9aZTuI=
 github.com/hashicorp/go-msgpack v0.5.5/go.mod h1:ahLV/dePpqEmjfWmKiqvPkv/twdG7iPBM1vqhUKIvfM=
-github.com/hashicorp/go-multierror v0.0.0-20161216184304-ed905158d874/go.mod h1:JMRHfdO9jKNzS/+BTlxCjKNQHg/jZAft8U7LloJvN7I=
 github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHhCYQXV3UM06sGGrk=
 github.com/hashicorp/go-multierror v1.1.0 h1:B9UzwGQJehnUY1yNrnwREHc3fGbC2xefo8g4TbElacI=
 github.com/hashicorp/go-multierror v1.1.0/go.mod h1:spPvp8C1qA32ftKqdAHm4hHTbPw+vmowP0z+KUhOZdA=
@@ -487,10 +380,11 @@ github.com/hashicorp/go-raftchunking v0.6.1/go.mod h1:cGlg3JtDy7qy6c/3Bu660Mic1J
 github.com/hashicorp/go-raftchunking v0.6.3-0.20191002164813-7e9e8525653a h1:FmnBDwGwlTgugDGbVxwV8UavqSMACbGrUpfc98yFLR4=
 github.com/hashicorp/go-raftchunking v0.6.3-0.20191002164813-7e9e8525653a/go.mod h1:xbXnmKqX9/+RhPkJ4zrEx4738HacP72aaUPlT2RZ4sU=
 github.com/hashicorp/go-retryablehttp v0.5.3/go.mod h1:9B5zBasrRhHXnJnui7y6sL7es7NDiJgTc6Er0maI1Xs=
-github.com/hashicorp/go-retryablehttp v0.6.6/go.mod h1:vAew36LZh98gCBJNLH42IQ1ER/9wtLZZ8meHqQvEYWY=
-github.com/hashicorp/go-retryablehttp v0.6.7 h1:8/CAEZt/+F7kR7GevNHulKkUjLht3CPmn7egmhieNKo=
-github.com/hashicorp/go-retryablehttp v0.6.7/go.mod h1:vAew36LZh98gCBJNLH42IQ1ER/9wtLZZ8meHqQvEYWY=
+github.com/hashicorp/go-retryablehttp v0.5.4/go.mod h1:9B5zBasrRhHXnJnui7y6sL7es7NDiJgTc6Er0maI1Xs=
+github.com/hashicorp/go-retryablehttp v0.6.2 h1:bHM2aVXwBtBJWxHtkSrWuI4umABCUczs52eiUS9nSiw=
+github.com/hashicorp/go-retryablehttp v0.6.2/go.mod h1:gEx6HMUGxYYhJScX7W1Il64m6cc2C1mDaW3NQ9sY1FY=
 github.com/hashicorp/go-rootcerts v1.0.0/go.mod h1:K6zTfqpRlCUIjkwsN4Z+hiSfzSTQa6eBIzfwKfwNnHU=
+github.com/hashicorp/go-rootcerts v1.0.1/go.mod h1:pqUvnprVnM5bf7AOirdbb01K4ccR319Vf4pU3K5EGc8=
 github.com/hashicorp/go-rootcerts v1.0.2 h1:jzhAVGtqPKbwpyCPELlgNWhE1znq+qwJtW5Oi2viEzc=
 github.com/hashicorp/go-rootcerts v1.0.2/go.mod h1:pqUvnprVnM5bf7AOirdbb01K4ccR319Vf4pU3K5EGc8=
 github.com/hashicorp/go-sockaddr v1.0.0/go.mod h1:7Xibr9yA9JjQq1JpNB2Vw7kxv8xerXegt+ozgdvDeDU=
@@ -500,6 +394,7 @@ github.com/hashicorp/go-syslog v1.0.0 h1:KaodqZuhUoZereWVIYmpUgZysurB1kBLX2j0MwM
 github.com/hashicorp/go-syslog v1.0.0/go.mod h1:qPfqrKkXGihmCqbJM2mZgkZGvKG1dFdvsLplgctolz4=
 github.com/hashicorp/go-uuid v1.0.0/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
 github.com/hashicorp/go-uuid v1.0.1/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
+github.com/hashicorp/go-uuid v1.0.2-0.20191001231223-f32f5fe8d6a8/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
 github.com/hashicorp/go-uuid v1.0.2 h1:cfejS+Tpcp13yd5nYHWDI6qVCny6wyX2Mt5SGur2IGE=
 github.com/hashicorp/go-uuid v1.0.2/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
 github.com/hashicorp/go-version v1.1.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
@@ -507,11 +402,8 @@ github.com/hashicorp/go-version v1.2.0 h1:3vNe/fWF5CBgRIguda1meWhsZHy3m8gCJ5wx+d
 github.com/hashicorp/go-version v1.2.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
 github.com/hashicorp/go.net v0.0.1/go.mod h1:hjKkEWcCURg++eb33jQU7oqQcI9XDCnUzHA0oac0k90=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
+github.com/hashicorp/golang-lru v0.5.1 h1:0hERBMJE1eitiLkihrMvRVBYAkpHzc/J3QdDN+dAcgU=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
-github.com/hashicorp/golang-lru v0.5.3 h1:YPkqC67at8FYaadspW/6uE0COsBxS2656RLEr8Bppgk=
-github.com/hashicorp/golang-lru v0.5.3/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
-github.com/hashicorp/golang-lru v0.5.4 h1:YDjusn29QI/Das2iO9M0BHnIbxPeyuCHsjMW+lJfyTc=
-github.com/hashicorp/golang-lru v0.5.4/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/hashicorp/hil v0.0.0-20160711231837-1e86c6b523c5 h1:uk280DXEbQiCOZgCOI3elFSeNxf8YIZiNsbr2pQLYD0=
@@ -521,6 +413,7 @@ github.com/hashicorp/mdns v1.0.0/go.mod h1:tL+uN++7HEJ6SQLQ2/p+z2pH24WQKWjBPkE0m
 github.com/hashicorp/mdns v1.0.1 h1:XFSOubp8KWB+Jd2PDyaX5xUd5bhSP/+pTDZVDMzZJM8=
 github.com/hashicorp/mdns v1.0.1/go.mod h1:4gW7WsVCke5TE7EPeYliwHlRUyBtfCwuFwuMg2DmyNY=
 github.com/hashicorp/memberlist v0.1.3/go.mod h1:ajVTdAv/9Im8oMAAj5G31PhhMCZJV2pPBoIllUwCN7I=
+github.com/hashicorp/memberlist v0.2.0/go.mod h1:MS2lj3INKhZjWNqd3N0m3J+Jxf3DAOnAH9VT3Sh9MUE=
 github.com/hashicorp/memberlist v0.2.2 h1:5+RffWKwqJ71YPu9mWsF7ZOscZmwfasdA8kbdC7AO2g=
 github.com/hashicorp/memberlist v0.2.2/go.mod h1:MS2lj3INKhZjWNqd3N0m3J+Jxf3DAOnAH9VT3Sh9MUE=
 github.com/hashicorp/net-rpc-msgpackrpc v0.0.0-20151116020338-a14192a58a69 h1:lc3c72qGlIMDqQpQH82Y4vaglRMMFdJbziYWriR4UcE=
@@ -532,13 +425,16 @@ github.com/hashicorp/raft v1.1.2/go.mod h1:vPAJM8Asw6u8LxC3eJCUZmRP/E4QmUGE1R7g7
 github.com/hashicorp/raft-boltdb v0.0.0-20171010151810-6e5ba93211ea h1:xykPFhrBAS2J0VBzVa5e80b5ZtYuNQtgXjN40qBZlD4=
 github.com/hashicorp/raft-boltdb v0.0.0-20171010151810-6e5ba93211ea/go.mod h1:pNv7Wc3ycL6F5oOWn+tPGo2gWD4a5X+yp/ntwdKLjRk=
 github.com/hashicorp/serf v0.8.2/go.mod h1:6hOLApaqBFA1NXqRQAsxw9QxuDEvNxSQRwA/JwenrHc=
-github.com/hashicorp/serf v0.9.3/go.mod h1:UWDWwZeL5cuWDJdl0C6wrvrUwEqtQ4ZKBKKENpqIUyk=
-github.com/hashicorp/serf v0.9.4 h1:xrZ4ZR0wT5Dz8oQHHdfOzr0ei1jMToWlFFz3hh/DI7I=
-github.com/hashicorp/serf v0.9.4/go.mod h1:UWDWwZeL5cuWDJdl0C6wrvrUwEqtQ4ZKBKKENpqIUyk=
-github.com/hashicorp/vault/api v1.0.5-0.20200717191844-f687267c8086 h1:OKsyxKi2sNmqm1Gv93adf2AID2FOBFdCbbZn9fGtIdg=
-github.com/hashicorp/vault/api v1.0.5-0.20200717191844-f687267c8086/go.mod h1:R3Umvhlxi2TN7Ex2hzOowyeNb+SfbVWI973N+ctaFMk=
-github.com/hashicorp/vault/sdk v0.1.14-0.20200519221838-e0cfd64bc267 h1:e1ok06zGrWJW91rzRroyl5nRNqraaBe4d5hiKcVZuHM=
-github.com/hashicorp/vault/sdk v0.1.14-0.20200519221838-e0cfd64bc267/go.mod h1:WX57W2PwkrOPQ6rVQk+dy5/htHIaB4aBM70EwKThu10=
+github.com/hashicorp/serf v0.9.0/go.mod h1:YL0HO+FifKOW2u1ke99DGVu1zhcpZzNwrLIqBC7vbYU=
+github.com/hashicorp/serf v0.9.2 h1:yJoyfZXo4Pk2p/M/viW+YLibBFiIbKoP79gu7kDAFP0=
+github.com/hashicorp/serf v0.9.2/go.mod h1:UWDWwZeL5cuWDJdl0C6wrvrUwEqtQ4ZKBKKENpqIUyk=
+github.com/hashicorp/vault/api v1.0.4/go.mod h1:gDcqh3WGcR1cpF5AJz/B1UFheUEneMoIospckxBxk6Q=
+github.com/hashicorp/vault/api v1.0.5-0.20191108163347-bdd38fca2cff h1:cl94LQIrs/mNbh3ny1R8lM1gtYcUBa7HnGtOCi35SlQ=
+github.com/hashicorp/vault/api v1.0.5-0.20191108163347-bdd38fca2cff/go.mod h1:Uf8LaHyrYsgVgHzO2tMZKhqRGlL3UJ6XaSwW2EA1Iqo=
+github.com/hashicorp/vault/sdk v0.1.13/go.mod h1:B+hVj7TpuQY1Y/GPbCpffmgd+tSEwvhkWnjtSYCaS2M=
+github.com/hashicorp/vault/sdk v0.1.14-0.20191108161836-82f2b5571044/go.mod h1:PcekaFGiPJyHnFy+NZhP6ll650zEw51Ag7g/YEa+EOU=
+github.com/hashicorp/vault/sdk v0.1.14-0.20191112033314-390e96e22eb2 h1:mKYi4Fm2uSfe94Ji89CoAaP7SPEEkfdtaUlgRGGb2go=
+github.com/hashicorp/vault/sdk v0.1.14-0.20191112033314-390e96e22eb2/go.mod h1:PcekaFGiPJyHnFy+NZhP6ll650zEw51Ag7g/YEa+EOU=
 github.com/hashicorp/vic v1.5.1-0.20190403131502-bbfe86ec9443 h1:O/pT5C1Q3mVXMyuqg7yuAWUg/jMZR1/0QTzTRdNR6Uw=
 github.com/hashicorp/vic v1.5.1-0.20190403131502-bbfe86ec9443/go.mod h1:bEpDU35nTu0ey1EXjwNwPjI9xErAsoOCmcMb9GKvyxo=
 github.com/hashicorp/yamux v0.0.0-20180604194846-3520598351bb/go.mod h1:+NfK9FKeTrX5uv1uIXGdwYDTeHna2qgaIlx54MXqjAM=
@@ -547,21 +443,17 @@ github.com/hashicorp/yamux v0.0.0-20181012175058-2f1d1f20f75d/go.mod h1:+NfK9FKe
 github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/hudl/fargo v1.3.0/go.mod h1:y3CKSmjA+wD2gak7sUSXTAoopbhU08POFhmITJgmKTg=
-github.com/iij/doapi v0.0.0-20190504054126-0bbf12d6d7df/go.mod h1:QMZY7/J/KSQEhKWFeDesPjMj+wCHReeknARU3wqlyN4=
 github.com/imdario/mergo v0.3.5/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
+github.com/imdario/mergo v0.3.6 h1:xTNEAn+kxVO7dTZGu0CegyqKZmoWFI0rF8UxjlB2d28=
 github.com/imdario/mergo v0.3.6/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
-github.com/imdario/mergo v0.3.9 h1:UauaLniWCFHWd+Jp9oCEkTBj8VO/9DKg3PV3VCNMDIg=
-github.com/imdario/mergo v0.3.9/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/influxdata/influxdb1-client v0.0.0-20191209144304-8bf82d3c094d/go.mod h1:qj24IKcXYK6Iy9ceXlo3Tc+vtHo9lIhSX5JddghvEPo=
 github.com/jackc/fake v0.0.0-20150926172116-812a484cc733/go.mod h1:WrMFNQdiFJ80sQsxDoMokWK1W5TQtxBFNpzWTD84ibQ=
 github.com/jackc/pgx v3.3.0+incompatible/go.mod h1:0ZGrqGqkRlliWnWB4zKnWtjbSWbGkVEFm4TeybAXq+I=
 github.com/jarcoal/httpmock v0.0.0-20180424175123-9c70cfe4a1da h1:FjHUJJ7oBW4G/9j1KzlHaXL09LyMVM9rupS39lncbXk=
 github.com/jarcoal/httpmock v0.0.0-20180424175123-9c70cfe4a1da/go.mod h1:ks+b9deReOc7jgqp+e7LuFiCBH6Rm5hL32cLcEAArb4=
-github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99/go.mod h1:1lJo3i6rXxKeerYnT8Nvf0QmHCRC1n8sfWVwXF2Frvo=
 github.com/jehiah/go-strftime v0.0.0-20171201141054-1d33003b3869 h1:IPJ3dvxmJ4uczJe5YQdrYB16oTJlGSC/OyZDqUk9xX4=
 github.com/jehiah/go-strftime v0.0.0-20171201141054-1d33003b3869/go.mod h1:cJ6Cj7dQo+O6GJNiMx+Pa94qKj+TG8ONdKHgMNIyyag=
-github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 github.com/jinzhu/copier v0.0.0-20190625015134-976e0346caa8 h1:mGIXW/lubQ4B+3bXTLxcTMTjUNDqoF6T/HUW9LbFx9s=
 github.com/jinzhu/copier v0.0.0-20190625015134-976e0346caa8/go.mod h1:yL958EeXv8Ylng6IfnvG4oflryUi3vgA3xPs9hmII1s=
 github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af h1:pmfjZENx5imkbgOkpRUYLnmbU7UEFbjtDA2hxJ1ichM=
@@ -577,7 +469,6 @@ github.com/json-iterator/go v1.1.5/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCV
 github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
 github.com/json-iterator/go v1.1.7/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/json-iterator/go v1.1.8/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
-github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
 github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
@@ -585,14 +476,13 @@ github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
+github.com/k0kubun/colorstring v0.0.0-20150214042306-9440f1994b88 h1:uC1QfSlInpQF+M0ao65imhwqKnz3Q2z/d8PWZRMQvDM=
 github.com/k0kubun/colorstring v0.0.0-20150214042306-9440f1994b88/go.mod h1:3w7q1U84EfirKl04SVQ/s7nPm1ZPhiXd34z40TNz36k=
+github.com/k0kubun/pp v3.0.1+incompatible h1:3tqvf7QgUnZ5tXO6pNAZlrvHgl6DvifjDrd9g2S9Z40=
 github.com/k0kubun/pp v3.0.1+incompatible/go.mod h1:GWse8YhT0p8pT4ir3ZgBbfZild3tgzSScAn6HmfYukg=
-github.com/kevinburke/ssh_config v0.0.0-20190725054713-01f96b0aa0cd/go.mod h1:CT57kijsi8u/K/BOFA39wgDQJ9CxiF4nAY/ojJ6r6mM=
 github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
 github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
-github.com/klauspost/cpuid v1.2.3/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
-github.com/kolo/xmlrpc v0.0.0-20190717152603-07c4ee3fd181/go.mod h1:o03bZfuBwAXHetKXuInt4S7omeXUu62/A845kiycsSQ=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/konsorten/go-windows-terminal-sequences v1.0.3 h1:CE8S1cTafDpPvMhIxNJKvHsGVBgn1xWYf1NbHQhywc8=
@@ -601,17 +491,9 @@ github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFB
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pretty v0.2.0 h1:s5hAObm+yFO5uHYt5dYjxi2rXrsnmRpJx4OYvIWUaQs=
 github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
-github.com/kr/pretty v0.2.1 h1:Fmg33tUaq4/8ym9TJN1x7sLJnHVwhP33CNkpYV/7rwI=
-github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
-github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
-github.com/labbsr0x/bindman-dns-webhook v1.0.2/go.mod h1:p6b+VCXIR8NYKpDr8/dg1HKfQoRHCdcsROXKvmoehKA=
-github.com/labbsr0x/goh v1.0.1/go.mod h1:8K2UhVoaWXcCU7Lxoa2omWnC8gyW8px7/lmO61c027w=
-github.com/labstack/echo/v4 v4.1.15/go.mod h1:GWO5IBVzI371K8XJe50CSvHjQCafK6cw8R/moLhEU6o=
-github.com/labstack/gommon v0.3.0/go.mod h1:MULnywXg0yavhxWKc+lOruYdAhDwPK9wf0OL7NoOu+k=
-github.com/leodido/go-urn v1.1.0/go.mod h1:+cyI34gQWZcE1eQU7NVgKkkzdXDQHr1dBMtdAPozLkw=
 github.com/lestrrat/go-envload v0.0.0-20180220120943-6ed08b54a570 h1:0iQektZGS248WXmGIYOwRXSQhD4qn3icjMpuxwO7qlo=
 github.com/lestrrat/go-envload v0.0.0-20180220120943-6ed08b54a570/go.mod h1:BLt8L9ld7wVsvEWQbuLrUZnCMnUmLZ+CGDzKtclrTlE=
 github.com/lestrrat/go-file-rotatelogs v0.0.0-20180223000712-d3151e2a480f h1:sgUSP4zdTUZYZgAGGtN5Lxk92rK+JUFOwf+FT99EEI4=
@@ -619,25 +501,17 @@ github.com/lestrrat/go-file-rotatelogs v0.0.0-20180223000712-d3151e2a480f/go.mod
 github.com/lestrrat/go-strftime v0.0.0-20180220042222-ba3bf9c1d042 h1:Bvq8AziQ5jFF4BHGAEDSqwPW1NJS3XshxbRCxtjFAZc=
 github.com/lestrrat/go-strftime v0.0.0-20180220042222-ba3bf9c1d042/go.mod h1:TPpsiPUEh0zFL1Snz4crhMlBe60PYxRHr5oFF3rRYg0=
 github.com/lib/pq v1.1.1/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
-github.com/lib/pq v1.3.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
 github.com/lightstep/lightstep-tracer-common/golang/gogo v0.0.0-20190605223551-bc2310a04743/go.mod h1:qklhhLq1aX+mtWk9cPHPzaBjWImj5ULL6C7HFJtXQMM=
 github.com/lightstep/lightstep-tracer-go v0.18.1/go.mod h1:jlF1pusYV4pidLvZ+XD0UBX0ZE6WURAspgAczcDHrL4=
+github.com/linode/linodego v0.7.1 h1:4WZmMpSA2NRwlPZcc0+4Gyn7rr99Evk9bnr0B3gXRKE=
 github.com/linode/linodego v0.7.1/go.mod h1:ga11n3ivecUrPCHN0rANxKmfWBJVkOXfLMZinAbj2sY=
-github.com/linode/linodego v0.10.0 h1:AMdb82HVgY8o3mjBXJcUv9B+fnJjfDMn2rNRGbX+jvM=
-github.com/linode/linodego v0.10.0/go.mod h1:cziNP7pbvE3mXIPneHj0oRY8L1WtGEIKlZ8LANE4eXA=
-github.com/liquidweb/liquidweb-go v1.6.0/go.mod h1:UDcVnAMDkZxpw4Y7NOHkqoeiGacVLEIG/i5J9cyixzQ=
-github.com/lucas-clemente/quic-go v0.14.1/go.mod h1:Vn3/Fb0/77b02SGhQk36KzOUmXgVpFfizUfW5WMaqyU=
 github.com/lyft/protoc-gen-validate v0.0.13/go.mod h1:XbGvPuh87YZc5TdIa2/I4pLk0QoUACkjt2znoq26NVQ=
 github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
 github.com/magiconair/properties v1.8.1/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
 github.com/magiconair/properties v1.8.4 h1:8KGKTcQQGm0Kv7vEbKFErAoAOFyyacLStRtQSeYtvkY=
 github.com/magiconair/properties v1.8.4/go.mod h1:y3VJvCyxH9uVvJTWEGAELF3aiYNyPKd5NZ3oSwXrF60=
 github.com/mailru/easyjson v0.0.0-20160728113105-d5b7844b561a/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
-github.com/marten-seemann/chacha20 v0.2.0/go.mod h1:HSdjFau7GzYRj+ahFNwsO3ouVJr1HFkWoEwNDb4TMtE=
-github.com/marten-seemann/qpack v0.1.0/go.mod h1:LFt1NU/Ptjip0C2CPkhimBz5CGE3WGDAUWqna+CNTrI=
-github.com/marten-seemann/qtls v0.4.1/go.mod h1:pxVXcHHw1pNIt8Qo0pwSYQEoZ8yYOOPXTCZLQQunvRc=
 github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
-github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
 github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
 github.com/mattn/go-colorable v0.1.6/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
 github.com/mattn/go-colorable v0.1.7 h1:bQGKb3vps/j0E9GfJQ03JyhRuxsvdAanXlT9BTw3mdw=
@@ -645,24 +519,17 @@ github.com/mattn/go-colorable v0.1.7/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope
 github.com/mattn/go-isatty v0.0.3/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
 github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
 github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
-github.com/mattn/go-isatty v0.0.9/go.mod h1:YNRxwqDuOph6SZLI9vUUz6OYw3QyUt7WiY2yME+cCiQ=
 github.com/mattn/go-isatty v0.0.10/go.mod h1:qgIWMr58cqv1PHHyhnkY9lrL7etaEgOFcMEpPG5Rm84=
 github.com/mattn/go-isatty v0.0.11/go.mod h1:PhnuNfih5lzO57/f3n+odYbM4JtupLOxQOAqxQCu2WE=
 github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
 github.com/mattn/go-runewidth v0.0.2/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
 github.com/mattn/go-runewidth v0.0.3/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
-github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
-github.com/mattn/go-tty v0.0.0-20180219170247-931426f7535a/go.mod h1:XPvLUNfbS4fJH25nqRHfWLMa1ONC8Amw+mIA639KxkE=
 github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
-github.com/micro/cli/v2 v2.1.2/go.mod h1:EguNh6DAoWKm9nmk+k/Rg0H3lQnDxqzu5x5srOtGtYg=
-github.com/micro/go-micro/v2 v2.9.1/go.mod h1:x55ZM3Puy0FyvvkR3e0ha0xsE9DFwfPSUMWAIbFY0SY=
 github.com/miekg/dns v1.0.14/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
-github.com/miekg/dns v1.1.15/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
+github.com/miekg/dns v1.1.26 h1:gPxPSwALAeHJSjarOs00QjVdV9QoBvc1D2ujQUr5BzU=
 github.com/miekg/dns v1.1.26/go.mod h1:bPDLeHnStXmXAq1m/Ch/hvfNHr14JKNPMBo3VZKjuso=
-github.com/miekg/dns v1.1.27 h1:aEH/kqUzUxGJ/UHcEKdJY+ugH6WEzsEBBSPa8zuy1aM=
-github.com/miekg/dns v1.1.27/go.mod h1:KNUDUusw/aVsxyTYZM1oqvCicbwhgbNgztCETuNZ7xM=
 github.com/mitchellh/cli v1.0.0/go.mod h1:hNIlj7HEI86fIcpObd7a0FcrxTWetlwJDGcceTlRvqc=
 github.com/mitchellh/cli v1.1.0 h1:tEElEatulEHDeedTxwckzyYMA5c86fbmNIUL1hBIiTg=
 github.com/mitchellh/cli v1.1.0/go.mod h1:xcISNoH86gajksDmfB23e/pu+B+GeFRMYmoHXxx3xhI=
@@ -675,19 +542,16 @@ github.com/mitchellh/go-testing-interface v0.0.0-20171004221916-a61a99592b77/go.
 github.com/mitchellh/go-testing-interface v1.0.0/go.mod h1:kRemZodwjscx+RGhAo8eIhFbs2+BFgRtFPeD/KE+zxI=
 github.com/mitchellh/go-testing-interface v1.14.0 h1:/x0XQ6h+3U3nAyk1yx+bHPURrKa9sVVvYbuqZ7pIAtI=
 github.com/mitchellh/go-testing-interface v1.14.0/go.mod h1:gfgS7OtZj6MA4U1UrDRp04twqAjfvlZyCfX3sDjEym8=
-github.com/mitchellh/go-vnc v0.0.0-20150629162542-723ed9867aed/go.mod h1:3rdaFaCv4AyBgu5ALFM0+tSuHrBh6v692nyQe3ikrq0=
 github.com/mitchellh/go-wordwrap v1.0.0/go.mod h1:ZXFpozHsX6DPmq2I0TCekCxypsnAUbP2oI0UX1GXzOo=
 github.com/mitchellh/gox v0.4.0/go.mod h1:Sd9lOJ0+aimLBi73mGofS1ycjY8lL3uZM3JPS42BGNg=
+github.com/mitchellh/hashstructure v0.0.0-20170609045927-2bca23e0e452 h1:hOY53G+kBFhbYFpRVxHl5eS7laP6B1+Cq+Z9Dry1iMU=
 github.com/mitchellh/hashstructure v0.0.0-20170609045927-2bca23e0e452/go.mod h1:QjSHrPWS+BGUVBYkbTZWEnOh3G1DutKwClXU/ABz6AQ=
-github.com/mitchellh/hashstructure v1.0.0 h1:ZkRJX1CyOoTkar7p/mLS5TZU4nJ1Rn/F8u9dGS02Q3Y=
-github.com/mitchellh/hashstructure v1.0.0/go.mod h1:QjSHrPWS+BGUVBYkbTZWEnOh3G1DutKwClXU/ABz6AQ=
 github.com/mitchellh/iochan v1.0.0/go.mod h1:JwYml1nuB7xOzsp52dPpHFffvOCDupsG0QubkSMEySY=
 github.com/mitchellh/mapstructure v0.0.0-20160808181253-ca63d7c062ee/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
 github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
-github.com/mitchellh/mapstructure v1.3.2/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
-github.com/mitchellh/mapstructure v1.3.3/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
-github.com/mitchellh/mapstructure v1.4.0 h1:7ks8ZkOP5/ujthUsT07rNv+nkLXCQWKNHuwzOAesEks=
-github.com/mitchellh/mapstructure v1.4.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
+github.com/mitchellh/mapstructure v1.2.3/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
+github.com/mitchellh/mapstructure v1.4.1 h1:CpVNEelQCZBooIPDn+AR3NpivK/TIKU8bDxdASFVQag=
+github.com/mitchellh/mapstructure v1.4.1/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
 github.com/mitchellh/pointerstructure v1.0.0 h1:ATSdz4NWrmWPOF1CeCBU4sMCno2hgqdbSrRPFWQSVZI=
 github.com/mitchellh/pointerstructure v1.0.0/go.mod h1:k4XwG94++jLVsSiTxo7qdIfXA9pj9EAeo0QsNNJOLZ8=
 github.com/mitchellh/reflectwalk v1.0.0/go.mod h1:mSTlrgnPZtwu0c4WaC2kGObEpuNDbx0jmZXqmk4esnw=
@@ -700,43 +564,28 @@ github.com/modern-go/reflect2 v0.0.0-20180320133207-05fbef0ca5da/go.mod h1:bx2lN
 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
-github.com/morikuni/aec v0.0.0-20170113033406-39771216ff4c/go.mod h1:BbKIizmSmc5MMPqRYbxO4ZU0S0+P200+tUnFx7PXmsc=
 github.com/mschoch/smat v0.0.0-20160514031455-90eadee771ae h1:VeRdUYdCw49yizlSbMEn2SZ+gT+3IUKx8BqxyQdz+BY=
 github.com/mschoch/smat v0.0.0-20160514031455-90eadee771ae/go.mod h1:qAyveg+e4CE+eKJXWVjKXM4ck2QobLqTDytGJbLLhJg=
 github.com/munnerz/goautoneg v0.0.0-20120707110453-a547fc61f48d/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f/go.mod h1:ZdcZmHo+o7JKHSa8/e818NopupXU1YMK5fe1lsApnBw=
-github.com/nacos-group/nacos-sdk-go v1.0.0/go.mod h1:hlAPn3UdzlxIlSILAyOXKxjFSvDJ9oLzTJ9hLAK1KzA=
-github.com/nacos-group/nacos-sdk-go v1.0.1 h1:VNmXGlSS28xOmkO5Nxk5WRp6f1HMosAmG9pDtcnUFcw=
-github.com/nacos-group/nacos-sdk-go v1.0.1/go.mod h1:hlAPn3UdzlxIlSILAyOXKxjFSvDJ9oLzTJ9hLAK1KzA=
-github.com/namedotcom/go v0.0.0-20180403034216-08470befbe04/go.mod h1:5sN+Lt1CaY4wsPvgQH/jsuJi4XO2ssZbdsIizr4CVC8=
+github.com/nacos-group/nacos-sdk-go v1.0.5 h1:xwLS0Ao7fSB3HoDFR+JRZ1fh0HuvgHPOWBdals37Oxc=
+github.com/nacos-group/nacos-sdk-go v1.0.5/go.mod h1:hlAPn3UdzlxIlSILAyOXKxjFSvDJ9oLzTJ9hLAK1KzA=
 github.com/nats-io/jwt v0.3.0/go.mod h1:fRYCDE99xlTsqUzISS1Bi75UBJ6ljOJQOAAu5VglpSg=
 github.com/nats-io/jwt v0.3.2/go.mod h1:/euKqTS1ZD+zzjYrY7pseZrTtWQSjujC7xjPc8wL6eU=
 github.com/nats-io/nats-server/v2 v2.1.2/go.mod h1:Afk+wRZqkMQs/p45uXdrVLuab3gwv3Z8C4HTBu8GD/k=
-github.com/nats-io/nats-server/v2 v2.1.6/go.mod h1:BL1NOtaBQ5/y97djERRVWNouMW7GT3gxnmbE/eC8u8A=
 github.com/nats-io/nats.go v1.9.1/go.mod h1:ZjDU1L/7fJ09jvUSRVBR2e7+RnLiiIQyqyzEE/Zbp4w=
-github.com/nats-io/nats.go v1.9.2/go.mod h1:AjGArbfyR50+afOUotNX2Xs5SYHf+CoOa5HH1eEl2HE=
 github.com/nats-io/nkeys v0.1.0/go.mod h1:xpnFELMwJABBLVhffcfd1MZx6VsNRFpEugbxziKVo7w=
 github.com/nats-io/nkeys v0.1.3/go.mod h1:xpnFELMwJABBLVhffcfd1MZx6VsNRFpEugbxziKVo7w=
-github.com/nats-io/nkeys v0.1.4/go.mod h1:XdZpAbhgyyODYqjTawOnIOI7VlbKSarI9Gfy1tqEu/s=
 github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
-github.com/nbio/st v0.0.0-20140626010706-e9e8d9816f32/go.mod h1:9wM+0iRr9ahx58uYLpLIr5fm8diHn0JbqRycJi6w0Ms=
 github.com/nicolai86/scaleway-sdk v1.10.2-0.20180628010248-798f60e20bb2 h1:BQ1HW7hr4IVovMwWg0E0PYcyW8CzqDcVmaew9cujU4s=
 github.com/nicolai86/scaleway-sdk v1.10.2-0.20180628010248-798f60e20bb2/go.mod h1:TLb2Sg7HQcgGdloNxkrmtgDNR9uVYF3lfdFIN4Ro6Sk=
-github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
-github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
-github.com/nlopes/slack v0.6.1-0.20191106133607-d06c2a2b3249/go.mod h1:JzQ9m3PMAqcpeCam7UaHSuBuupz7CmpjehYMayT6YOk=
-github.com/nrdcg/auroradns v1.0.0/go.mod h1:6JPXKzIRzZzMqtTDgueIhTi6rFf1QvYE/HzqidhOhjw=
-github.com/nrdcg/dnspod-go v0.4.0/go.mod h1:vZSoFSFeQVm2gWLMkyX61LZ8HI3BaqtHZWgPTGKr6KQ=
-github.com/nrdcg/goinwx v0.6.1/go.mod h1:XPiut7enlbEdntAqalBIqcYcTEVhpv/dKWgDCX2SwKQ=
-github.com/nrdcg/namesilo v0.2.1/go.mod h1:lwMvfQTyYq+BbjJd30ylEG4GPSS6PII0Tia4rRpRiyw=
 github.com/oklog/oklog v0.3.2/go.mod h1:FCV+B7mhrz4o+ueLpx+KqkyXRGMWOYEvfiXtdGtbWGs=
 github.com/oklog/run v1.0.0/go.mod h1:dlhp/R75TPv97u0XWUtDeV/lRKWPKSdTuV0TZvrmrQA=
 github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
 github.com/olekukonko/tablewriter v0.0.0-20170122224234-a0225b3f23b5/go.mod h1:vsDQFd/mU46D+Z4whnwzcISnGGzXWMclvtLoiIKAKIo=
 github.com/olekukonko/tablewriter v0.0.0-20180130162743-b8a9be070da4/go.mod h1:vsDQFd/mU46D+Z4whnwzcISnGGzXWMclvtLoiIKAKIo=
-github.com/olekukonko/tablewriter v0.0.1/go.mod h1:vsDQFd/mU46D+Z4whnwzcISnGGzXWMclvtLoiIKAKIo=
 github.com/onsi/ginkgo v0.0.0-20170829012221-11459a886d9c/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
@@ -749,13 +598,6 @@ github.com/onsi/gomega v1.5.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1Cpa
 github.com/onsi/gomega v1.7.0 h1:XPnZz8VVBHjVsy1vzJmRwIcSwiUO+JFfrv/xGiigmME=
 github.com/onsi/gomega v1.7.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
 github.com/op/go-logging v0.0.0-20160315200505-970db520ece7/go.mod h1:HzydrMdWErDVzsI23lYNej1Htcns9BCg93Dk0bBINWk=
-github.com/opencontainers/go-digest v0.0.0-20180430190053-c9281466c8b2/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s=
-github.com/opencontainers/go-digest v1.0.0-rc1/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s=
-github.com/opencontainers/image-spec v1.0.1/go.mod h1:BtxoFyWECRxE4U/7sNtV5W15zMzWCbyJoFRP3s7yZA0=
-github.com/opencontainers/runc v0.0.0-20190115041553-12f6a991201f/go.mod h1:qT5XzbpPznkRYVz/mWwUaVBUv2rmF59PVA73FjuZG0U=
-github.com/opencontainers/runc v0.1.1/go.mod h1:qT5XzbpPznkRYVz/mWwUaVBUv2rmF59PVA73FjuZG0U=
-github.com/opencontainers/runtime-spec v0.1.2-0.20190507144316-5b71a03e2700/go.mod h1:jwyrGlmzljRJv/Fgzds9SsS/C5hL+LL3ko9hs6T5lQ0=
-github.com/opencontainers/runtime-tools v0.0.0-20181011054405-1d69bd0f9c39/go.mod h1:r3f7wjNzSs2extwzU3Y+6pKfobzPh+kKFJ3ofN+3nfs=
 github.com/opentracing-contrib/go-observer v0.0.0-20170622124052-a52f23424492/go.mod h1:Ngi6UdF0k5OKD5t5wlmGhe/EDKPoUM3BXZSSfIuJbis=
 github.com/opentracing/basictracer-go v1.0.0/go.mod h1:QfBfYuafItcjQuMwinw9GhYKwFXS9KnPs5lxoYwgW74=
 github.com/opentracing/opentracing-go v1.0.2/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
@@ -766,9 +608,6 @@ github.com/openzipkin-contrib/zipkin-go-opentracing v0.4.5/go.mod h1:/wsWhb9smxS
 github.com/openzipkin/zipkin-go v0.1.6/go.mod h1:QgAqvLzwWbR/WpD4A3cGpPtJrZXNIiJc5AZX7/PBEpw=
 github.com/openzipkin/zipkin-go v0.2.1/go.mod h1:NaW6tEwdmWMaCDZzg8sh+IBNOxHMPnhQw8ySjnjRyN4=
 github.com/openzipkin/zipkin-go v0.2.2/go.mod h1:NaW6tEwdmWMaCDZzg8sh+IBNOxHMPnhQw8ySjnjRyN4=
-github.com/oracle/oci-go-sdk v7.0.0+incompatible/go.mod h1:VQb79nF8Z2cwLkLS35ukwStZIg5F66tcBccjip/j888=
-github.com/ovh/go-ovh v0.0.0-20181109152953-ba5adb4cf014/go.mod h1:joRatxRJaZBsY3JAOEMcoOp05CnZzsx4scTxi95DHyQ=
-github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c/go.mod h1:X07ZCGwUbLaax7L0S3Tw4hpejzu63ZrrQiUe6W0hcy0=
 github.com/packethost/packngo v0.1.1-0.20180711074735-b9cb5096f54c h1:vwpFWvAO8DeIZfFeqASzZfsxuWPno9ncAebBEP0N3uE=
 github.com/packethost/packngo v0.1.1-0.20180711074735-b9cb5096f54c/go.mod h1:otzZQXgoO96RTzDB/Hycg0qZcXZsWJGJRSXbmEIJ+4M=
 github.com/pact-foundation/pact-go v1.0.4/go.mod h1:uExwJY4kCzNPcHRj+hCR/HBbOOIwwtUjcrb0b5/5kLM=
@@ -786,8 +625,8 @@ github.com/philhofer/fwd v1.0.0 h1:UbZqGr5Y38ApvM/V/jEljVxwocdweyH+vmYvRPBnbqQ=
 github.com/philhofer/fwd v1.0.0/go.mod h1:gk3iGcWd9+svBvR0sR+KPcfE+RNWozjowpeBVG3ZVNU=
 github.com/pierrec/lz4 v1.0.2-0.20190131084431-473cd7ce01a1/go.mod h1:3/3N9NVKO0jef7pBehbT1qWhCMrIgbYNnFAZCqQ5LRc=
 github.com/pierrec/lz4 v2.0.5+incompatible/go.mod h1:pdkljMzZIN41W+lC3N2tnIh5sFi+IEE17M5jbnwPHcY=
-github.com/pierrec/lz4 v2.5.2+incompatible h1:WCjObylUIOlKy/+7Abdn34TLIkXiA4UWUMhxq9m9ZXI=
-github.com/pierrec/lz4 v2.5.2+incompatible/go.mod h1:pdkljMzZIN41W+lC3N2tnIh5sFi+IEE17M5jbnwPHcY=
+github.com/pierrec/lz4 v2.2.6+incompatible h1:6aCX4/YZ9v8q69hTyiR7dNLnTA3fgtKHVVW5BCd5Znw=
+github.com/pierrec/lz4 v2.2.6+incompatible/go.mod h1:pdkljMzZIN41W+lC3N2tnIh5sFi+IEE17M5jbnwPHcY=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
@@ -806,16 +645,13 @@ github.com/prometheus/client_golang v0.9.2/go.mod h1:OsXs2jCmiKlQ1lTBmv21f2mNfw4
 github.com/prometheus/client_golang v0.9.3-0.20190127221311-3c4408c8b829/go.mod h1:p2iRAGwDERtqlqzRXnrOVns+ignqQo//hLXqYxZYVNs=
 github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
 github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
-github.com/prometheus/client_golang v1.1.0/go.mod h1:I1FGZT9+L76gKKOs5djB6ezCbFQP1xR9D75/vuwEF3g=
 github.com/prometheus/client_golang v1.3.0/go.mod h1:hJaj2vgQTGQmVCsAACORcieXFeDPbaTKGT+JTgUa3og=
-github.com/prometheus/client_golang v1.4.0/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3OK1iX/F2sw+iXX5zU=
 github.com/prometheus/client_golang v1.7.1/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M=
 github.com/prometheus/client_golang v1.8.0 h1:zvJNkoCFAnYFNC24FV8nW4JdRJ3GIFcLbg65lL/JDcw=
 github.com/prometheus/client_golang v1.8.0/go.mod h1:O9VU6huf47PktckDQfMTX0Y8tY0/7TSWwj+ITvv0TnM=
 github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
 github.com/prometheus/client_model v0.0.0-20190115171406-56726106282f/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
 github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
-github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/client_model v0.1.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/client_model v0.2.0 h1:uq5h0d+GuxiXLJLNABMgp2qUWDPiLvgCzz2dUR+/W/M=
 github.com/prometheus/client_model v0.2.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
@@ -824,9 +660,7 @@ github.com/prometheus/common v0.0.0-20181126121408-4724e9255275/go.mod h1:daVV7q
 github.com/prometheus/common v0.2.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
 github.com/prometheus/common v0.4.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
 github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
-github.com/prometheus/common v0.6.0/go.mod h1:eBmuwkDJBwy6iBfxCBob6t6dR6ENT/y+J+Zk0j9GMYc=
 github.com/prometheus/common v0.7.0/go.mod h1:DjGbpBbp5NYNiECxcL/VnbXCCaQpKd3tt26CguLLsqA=
-github.com/prometheus/common v0.9.1/go.mod h1:yhUN8i9wzaXS3w1O07YhxHEBxD+W35wd8bs7vj7HSQ4=
 github.com/prometheus/common v0.10.0/go.mod h1:Tlit/dnDKsSWFlCLTWaA1cyBgKHSMdTB80sz/V91rCo=
 github.com/prometheus/common v0.14.0 h1:RHRyE8UocrbjU+6UvRzwi6HjiDfxrrBU91TtbKzkGp4=
 github.com/prometheus/common v0.14.0/go.mod h1:U+gB1OBLb1lF3O42bTCL+FK18tX9Oar16Clt/msog/s=
@@ -835,14 +669,11 @@ github.com/prometheus/procfs v0.0.0-20181204211112-1dc9a6cbc91a/go.mod h1:c3At6R
 github.com/prometheus/procfs v0.0.0-20190117184657-bf6a532e95b1/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
 github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
 github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
-github.com/prometheus/procfs v0.0.3/go.mod h1:4A/X28fw3Fc593LaREMrKMqOKvUAntwMDaekg4FpcdQ=
-github.com/prometheus/procfs v0.0.5/go.mod h1:4A/X28fw3Fc593LaREMrKMqOKvUAntwMDaekg4FpcdQ=
 github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
 github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
 github.com/prometheus/procfs v0.2.0 h1:wH4vA7pcjKuZzjF7lM8awk4fnuJO6idemZXoKnULUx4=
 github.com/prometheus/procfs v0.2.0/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
 github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
-github.com/rainycape/memcache v0.0.0-20150622160815-1031fa0ce2f2/go.mod h1:7tZKcyumwBO6qip7RNQ5r77yrssm9bfCowcLEBcU5IA=
 github.com/rboyer/safeio v0.2.1/go.mod h1:Cq/cEPK+YXFn622lsQ0K4KsPZSPtaptHHEldsy7Fmig=
 github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/renier/xmlrpc v0.0.0-20170708154548-ce4a1a486c03 h1:Wdi9nwnhFNAlseAOekn6B5G/+GMtks9UKbvRU/CMM/o=
@@ -856,7 +687,6 @@ github.com/ryanuber/columnize v0.0.0-20160712163229-9b3edd62028f/go.mod h1:sm1tb
 github.com/ryanuber/columnize v2.1.0+incompatible/go.mod h1:sm1tb6uqfes/u+d4ooFouqFdy9/2g9QGwK3SQygK0Ts=
 github.com/ryanuber/go-glob v1.0.0 h1:iQh3xXAumdQ+4Ufa5b25cRpC5TYKlno6hsv6Cb3pkBk=
 github.com/ryanuber/go-glob v1.0.0/go.mod h1:807d1WSdnB0XRJzKNil9Om6lcp/3a0v4qIHxIXzX/Yc=
-github.com/sacloud/libsacloud v1.26.1/go.mod h1:79ZwATmHLIFZIMd7sxA3LwzVy/B77uj3LDoToVTxDoQ=
 github.com/samuel/go-zookeeper v0.0.0-20190923202752-2cc03de413da/go.mod h1:gi+0XIa01GRL2eRQVjQkKGqKF3SF9vZR/HnPullcV2E=
 github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0=
 github.com/satori/go.uuid v1.2.1-0.20181028125025-b2ce2384e17b h1:gQZ0qzfKHQIybLANtM3mBXNUtOfsCFXeTsnBqCsx1KM=
@@ -865,7 +695,6 @@ github.com/sean-/conswriter v0.0.0-20180208195008-f5ae3917a627/go.mod h1:7zjs06q
 github.com/sean-/pager v0.0.0-20180208200047-666be9bf53b5/go.mod h1:BeybITEsBEg6qbIiqJ6/Bqeq25bCLbL7YFmpaFfJDuM=
 github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529 h1:nn5Wsu0esKSJiIVhscUtVbo7ada43DJhG55ua/hjS5I=
 github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg65j358z/aeFdxmN0P9QXhEzd20vsDc=
-github.com/sergi/go-diff v1.1.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNXdaHfM=
 github.com/shirou/gopsutil v0.0.0-20181107111621-48177ef5f880 h1:1Ge4j/3uB2rxzPWD3TC+daeCw+w91z8UCUL/7WH5gn8=
 github.com/shirou/gopsutil v0.0.0-20181107111621-48177ef5f880/go.mod h1:5b4v6he4MtMOwMlS0TUMTu2PcXUg8+E1lC7eC3UO/RA=
 github.com/shirou/w32 v0.0.0-20160930032740-bb4de0191aa4 h1:udFKJ0aHUL60LboW/A+DfgoHVedieIzIXE8uylPue0U=
@@ -874,11 +703,9 @@ github.com/shopspring/decimal v0.0.0-20180709203117-cd690d0c9e24/go.mod h1:M+9Nz
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/sirupsen/logrus v1.0.6/go.mod h1:pMByvHTf9Beacp5x1UXfOR9xyW/9antXMhjMPG0dEzc=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
-github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/sirupsen/logrus v1.6.0 h1:UBcNElsrwanuuMsnGSlYmtmgbb23qDR5dG+6X6Oo89I=
 github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
-github.com/skratchdot/open-golang v0.0.0-20160302144031-75fb7ed4208c/go.mod h1:sUM3LWHvSMaG192sy56D9F7CNvL7jUJVXoqM1QKLnog=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykElWQ6/NYmHa3jpm/yHnI4xSofP+UP6SpjHcSeM=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
 github.com/smartystreets/goconvey v0.0.0-20190330032615-68dc04aab96a/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
@@ -923,58 +750,42 @@ github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81P
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/subosito/gotenv v1.2.0 h1:Slr1R9HxAlEKefgq5jn9U+DnETlIUa6HfgEzj0g5d7s=
 github.com/subosito/gotenv v1.2.0/go.mod h1:N0PQaV/YGNqwC0u51sEeR/aUtSLEXKX9iv69rRypqCw=
-github.com/syndtr/gocapability v0.0.0-20170704070218-db04d3cc01c8/go.mod h1:hkRG7XYTFWNJGYcbNJQlaLq0fg1yr4J4t/NcTQtrfww=
 github.com/tebeka/strftime v0.1.3 h1:5HQXOqWKYRFfNyBMNVc9z5+QzuBtIXy03psIhtdJYto=
 github.com/tebeka/strftime v0.1.3/go.mod h1:7wJm3dZlpr4l/oVK0t1HYIc4rMzQ2XJlOMIUJUJH6XQ=
-github.com/technoweenie/multipartstreamer v1.0.1/go.mod h1:jNVxdtShOxzAsukZwTSw6MDx5eUJoiEBsSvzDU9uzog=
 github.com/tencentcloud/tencentcloud-sdk-go v3.0.83+incompatible h1:8uRvJleFpqLsO77WaAh2UrasMOzd8MxXrNj20e7El+Q=
 github.com/tencentcloud/tencentcloud-sdk-go v3.0.83+incompatible/go.mod h1:0PfYow01SHPMhKY31xa+EFz2RStxIqj6JFAJS+IkCi4=
 github.com/tent/http-link-go v0.0.0-20130702225549-ac974c61c2f9/go.mod h1:RHkNRtSLfOK7qBTHaeSX1D6BNpI3qw7NTxsmNr4RvN8=
 github.com/tevid/gohamcrest v1.1.1 h1:ou+xSqlIw1xfGTg1uq1nif/htZ2S3EzRqLm2BP+tYU0=
 github.com/tevid/gohamcrest v1.1.1/go.mod h1:3UvtWlqm8j5JbwYZh80D/PVBt0mJ1eJiYgZMibh0H/k=
-github.com/timewasted/linode v0.0.0-20160829202747-37e84520dcf7/go.mod h1:imsgLplxEC/etjIhdr3dNzV3JeT27LbVu5pYWm0JCBY=
 github.com/tinylib/msgp v1.1.0 h1:9fQd+ICuRIu/ue4vxJZu6/LzxN0HwMds2nq/0cFvxHU=
 github.com/tinylib/msgp v1.1.0/go.mod h1:+d+yLhGm8mzTaHzB+wgMYrodPfmZrzkirds8fDWklFE=
 github.com/tmc/grpc-websocket-proxy v0.0.0-20170815181823-89b8d40f7ca8/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
+github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5 h1:LnC5Kc/wtumK+WB441p7ynQJzVuNRJiqddSIE3IlSEQ=
 github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
-github.com/tmc/grpc-websocket-proxy v0.0.0-20200122045848-3419fae592fc h1:yUaosFVTJwnltaHbSNC3i82I92quFs+OFPRl8kNMVwo=
-github.com/tmc/grpc-websocket-proxy v0.0.0-20200122045848-3419fae592fc/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/toolkits/concurrent v0.0.0-20150624120057-a4371d70e3e3 h1:kF/7m/ZU+0D4Jj5eZ41Zm3IH/J8OElK1Qtd7tVKAwLk=
 github.com/toolkits/concurrent v0.0.0-20150624120057-a4371d70e3e3/go.mod h1:QDlpd3qS71vYtakd2hmdpqhJ9nwv6mD6A30bQ1BPBFE=
-github.com/transip/gotransip v0.0.0-20190812104329-6d8d9179b66f/go.mod h1:i0f4R4o2HM0m3DZYQWsj6/MEowD57VzoH0v3d7igeFY=
 github.com/tv42/httpunix v0.0.0-20150427012821-b75d8614f926 h1:G3dpKMzFDjgEh2q1Z7zUUtKa8ViPtH+ocF0bE0g00O8=
 github.com/tv42/httpunix v0.0.0-20150427012821-b75d8614f926/go.mod h1:9ESjWnEqriFuLhtthL60Sar/7RFoluCcXsuvEwTV5KM=
-github.com/uber-go/atomic v1.3.2/go.mod h1:/Ct5t2lcmbJ4OSe/waGBoaVvVqtO0bmtfVNex1PFV8g=
 github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
-github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw=
 github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
-github.com/ugorji/go/codec v1.1.7/go.mod h1:Ax+UKWsSmolVDwsd+7N3ZtXu+yMGCf907BLYF3GoBXY=
-github.com/urfave/cli v0.0.0-20171014202726-7bc6a0acffa5/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
 github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
 github.com/urfave/cli v1.22.1/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
-github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
-github.com/valyala/fasttemplate v1.0.1/go.mod h1:UQGH1tvbgY+Nz5t2n7tXsz52dQxojPUpymEIMZ47gx8=
-github.com/valyala/fasttemplate v1.1.0/go.mod h1:UQGH1tvbgY+Nz5t2n7tXsz52dQxojPUpymEIMZ47gx8=
 github.com/vmware/govmomi v0.18.0 h1:f7QxSmP7meCtoAmiKZogvVbLInT+CZx6Px6K5rYsJZo=
 github.com/vmware/govmomi v0.18.0/go.mod h1:URlwyTFZX72RmxtxuaFL2Uj3fD1JTvZdx59bHWk6aFU=
-github.com/vultr/govultr v0.1.4/go.mod h1:9H008Uxr/C4vFNGLqKx232C206GL0PBHzOP0809bGNA=
 github.com/willf/bitset v1.1.10 h1:NotGKqX0KwQ72NUzqrjZq5ipPNDQex9lo3WpaS8L2sc=
 github.com/willf/bitset v1.1.10/go.mod h1:RjeCKbqT1RxIR/KWY6phxZiaY1IyutSBfGjNPySAYV4=
-github.com/xanzy/ssh-agent v0.2.1/go.mod h1:mLlQY/MoOhWBj+gOGMQkOeiEvkx+8pJSI+0Bx9h2kr4=
-github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f/go.mod h1:N2zxlSyiKSe5eX1tZViRH5QA0qijqEDrYZiPEAiq3wU=
-github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415/go.mod h1:GwrjFmJcFw6At/Gs6z4yjiIwzuJ1/+UwLxMQDVQXShQ=
-github.com/xeipuuv/gojsonschema v0.0.0-20180618132009-1d523034197f/go.mod h1:5yf86TLmAcydyeJq5YvxkGPE2fm/u4myDekKRoLuqhs=
-github.com/xeipuuv/gojsonschema v1.1.0/go.mod h1:5yf86TLmAcydyeJq5YvxkGPE2fm/u4myDekKRoLuqhs=
 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 h1:eY9dn8+vbi4tKz5Qo6v2eYzo7kUS51QINcR5jNpbZS8=
 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
 github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
-github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/zouyx/agollo/v3 v3.4.5 h1:7YCxzY9ZYaH9TuVUBvmI6Tk0mwMggikah+cfbYogcHQ=
 github.com/zouyx/agollo/v3 v3.4.5/go.mod h1:LJr3kDmm23QSW+F1Ol4TMHDa7HvJvscMdVxJ2IpUTVc=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
+go.etcd.io/bbolt v1.3.3 h1:MUGmc65QhB3pIlaQ5bB4LwqSj6GIonVJXpZiaKNyaKk=
 go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/bbolt v1.3.4 h1:hi1bXHMVrlQh6WwxAy+qZCV/SYIlqo+Ushwdpa4tAKg=
 go.etcd.io/bbolt v1.3.4/go.mod h1:G5EMThwa9y8QZGBClrRx5EY+Yw9kAhnjy3bSjsnlVTQ=
@@ -991,12 +802,10 @@ go.uber.org/atomic v1.5.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
 go.uber.org/atomic v1.6.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
 go.uber.org/atomic v1.7.0 h1:ADUqmZGgLDDfbSL9ZmPxKTybcoEYHgpYfELNoN+7hsw=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
-go.uber.org/goleak v1.0.0/go.mod h1:8a7PlsEVH3e/a/GLqe5IIrQx6GzcnRmZEufDUTk4A7A=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
 go.uber.org/multierr v1.3.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+4=
 go.uber.org/multierr v1.5.0 h1:KCa4XfM8CWFCpxXRGok+Q0SS/0XBhMDbHHGABQLvD2A=
 go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU=
-go.uber.org/ratelimit v0.0.0-20180316092928-c15da0234277/go.mod h1:2X8KaoNd1J0lZV+PxJk/5+DGbO/tpwLR1m++a7FnB/Y=
 go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee h1:0mgffUl7nfd+FpvXMVz4IDEaUSmT1ysygQC7qYo7sG4=
 go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
@@ -1004,39 +813,26 @@ go.uber.org/zap v1.13.0/go.mod h1:zwrFLgMcdUuIBviXEYEH1YKNaOBnKXsx2IPda5bBwHM=
 go.uber.org/zap v1.15.0/go.mod h1:Mb2vm2krFEG5DV0W9qcHBYFtp/Wku1cvYaqPsS/WYfc=
 go.uber.org/zap v1.16.0 h1:uFRZXykJGK9lLY4HtgSw44DnIcAM+kRBP7x5m+NpAOM=
 go.uber.org/zap v1.16.0/go.mod h1:MA8QOfq0BHJwdXa996Y4dYkAqRKB8/1K1QMMZVaNZjQ=
-golang.org/x/crypto v0.0.0-20180621125126-a49355c7e3f8/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
-golang.org/x/crypto v0.0.0-20181030102418-4d3f4d9ffa16/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190211182817-74369b46fc67/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
-golang.org/x/crypto v0.0.0-20190219172222-a4c6cb3142f2/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20190418165655-df01cb2cc480/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190611184440-5c40567a22f8/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20190829043050-9756ffdc2472/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392/go.mod h1:/lpIB1dKB+9EgE3H3cr1v9wB50oz8l4C4h62xy7jSTY=
-golang.org/x/crypto v0.0.0-20190927123631-a832865fa7ad/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191206172530-e9b2fee46413/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200220183623-bac4c82f6975/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20200221231518-2aa609cf4a9d/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20200323165209-0ec3e9974c59/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20200510223506-06a226fb4e37/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 h1:psW17arqaxU48Z5kZ0CQnkZWQJsqcURM6tKiBApRjXI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a h1:vclmkQCjlDX5OydZ9wv8rBCcS0QyQY66Mpf/7BZbInM=
-golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
 golang.org/x/exp v0.0.0-20190829153037-c13cbed26979/go.mod h1:86+5VVa7VpoJ4kLfm080zCjGlMRFzhUhsZKEZO7MGek=
 golang.org/x/exp v0.0.0-20191030013958-a1ab85dbe136/go.mod h1:JXzH8nQsPlswgeRAPE3MuO9GYsAcnJvJ4vnMwN/5qkY=
-golang.org/x/exp v0.0.0-20191129062945-2f5052295587/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
@@ -1046,7 +842,6 @@ golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHl
 golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs=
 golang.org/x/lint v0.0.0-20200302205851-738671d3881b h1:Wh+f8QHJXR411sJR8/vRBTZ7YapZaRvUcLFFJhusH0k=
 golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
 golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
@@ -1054,11 +849,9 @@ golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCc
 golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
 golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
 golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
-golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0 h1:RM4zey1++hCTbCVQfnWeKs9/IEsaBLA8vTkd0WVtmH4=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20170114055629-f2499483f923/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20180611182652-db08ff08e862/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -1069,7 +862,6 @@ golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190125091013-d26f9f9a57f3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20190228165749-92fc7df08ae7/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
@@ -1078,22 +870,14 @@ golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR
 golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20190930134127-c5a3c61f89f3/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20191004110552-13f9640d40b9/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20191027093000-83d349e8ac1a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20200301022130-244492dfa37a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200513185701-a91f0712d120/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
-golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
-golang.org/x/net v0.0.0-20200602114024-627f9648deb9/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200822124328-c89045814202 h1:VvcQYSHwXgi7W+TpUR6A9g6Up98WAHf3f/ulnJ62IyA=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
-golang.org/x/net v0.0.0-20200904194848-62affa334b73 h1:MXfv8rhZWmFeqX3GNZRsd6vOLoaCHjYEX3qkRo3YBUA=
-golang.org/x/net v0.0.0-20200904194848-62affa334b73/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 h1:SVwTIAaPC2U/AvvLNZ2a7OVsmBpC8L5BlwK1whH3hm0=
@@ -1104,11 +888,9 @@ golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208 h1:qwRHBd0NqMbJxfbotnDhm2ByMI1Shq4Y6oRJo21SGJA=
 golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20170830134202-bb24a47a89ea/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20180622082034-63fc586f45fe/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -1121,7 +903,6 @@ golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190129075346-302c3dd5f1cc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190209173611-3b5209105503/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190221075227-b4e8571b14e0/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -1129,17 +910,14 @@ golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190514135907-3a4b5fb9f71f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190508220229-2d0786266e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190515120540-06a5c4944438/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190523142557-0e01d883c5c5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190801041406-cbf593c0f2f3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190904154756-749cb33beabd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190922100055-0a153f010e69/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190924154521-2837fb4f24fe/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -1148,34 +926,26 @@ golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20191220142924-d4481acd189f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200124204421-9fbb57f87de9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200523222454-059865788121/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201007082116-8445cc04cbdf/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201015000850-e3ed0017c211 h1:9UQO31fZ+0aKQOFldThf7BKPMJTiBfWycGh/u3UoO88=
 golang.org/x/sys v0.0.0-20201015000850-e3ed0017c211/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201223074533-0d417f636930 h1:vRgIt+nup/B/BwIS0g2oC0haq0iqbV3ZA+u6+0TlNCo=
+golang.org/x/sys v0.0.0-20201223074533-0d417f636930/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.0.0-20160726164857-2910a502d2bf/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.1-0.20181227161524-e6919f6577db/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
-golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
-golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/time v0.0.0-20190921001708-c4c64cad1fd0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0 h1:/5xXl8Y5W96D+TtHSlonuFqGHIWVuyCkGJLwGh9JJFs=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/time v0.0.0-20200416051211-89c76fbcd5d1/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/time v0.0.0-20200630173020-3af7569d3a1e h1:EHBhcS0mlXEAVwNyO2dLfjToGsyY4j24pTs2ScHnX7s=
-golang.org/x/time v0.0.0-20200630173020-3af7569d3a1e/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180828015842-6cd1fcedba52/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -1199,16 +969,10 @@ golang.org/x/tools v0.0.0-20190911174233-4f2ddba30aff/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20191012152004-8de300cfc20a/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191112195655-aa38f8e97acc/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20191125144606-a911d9008d1f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20191216052735-49a3e744a425/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
-golang.org/x/tools v0.0.0-20191216173652-a0e659d51361/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200103221440-774c71fcf114/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
-golang.org/x/tools v0.0.0-20200426102838-f3a5411a4c3b/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
-golang.org/x/tools v0.0.0-20200513154647-78b527d18275/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20200928182047-19e03678916f h1:VwGa2Wf+rHGIxvsssCkUNIyFv8jQY0VCBCNWtikoWq0=
 golang.org/x/tools v0.0.0-20200928182047-19e03678916f/go.mod h1:z6u4i615ZeAfBE4XtMziQW1fSVJXACjjbWkB/mvPzlU=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -1221,9 +985,8 @@ google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEt
 google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
 google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
 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=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -1232,8 +995,8 @@ google.golang.org/appengine v1.6.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7
 google.golang.org/appengine v1.6.1 h1:QzqyMA1tlu6CgqCDUtU9V+ZKhLFT2dkJuANu5QaxI3I=
 google.golang.org/appengine v1.6.1/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww/cMBSeb0=
 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=
 google.golang.org/genproto v0.0.0-20190418145605-e7d98fc518a7/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
@@ -1241,9 +1004,8 @@ google.golang.org/genproto v0.0.0-20190530194941-fb225487d101/go.mod h1:z3L6/3dT
 google.golang.org/genproto v0.0.0-20190801165951-fa694d86fc64/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 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=
 google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
-google.golang.org/genproto v0.0.0-20191216164720-4f79533eabd1 h1:aQktFqmDE2yjveXJlVIfslDFmFnUXSqG0i6KRcJAeMc=
-google.golang.org/genproto v0.0.0-20191216164720-4f79533eabd1/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
 google.golang.org/grpc v1.14.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
 google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
@@ -1256,7 +1018,6 @@ google.golang.org/grpc v1.22.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyac
 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 v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 google.golang.org/grpc v1.26.0 h1:2dTRdpdFEEhJYQD8EMLB61nnrzSCTbG38PhqdhvOltg=
 google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
@@ -1264,39 +1025,31 @@ 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/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
+gopkg.in/asn1-ber.v1 v1.0.0-20181015200546-f715ec2f112d/go.mod h1:cuepJuh7vyXfUyUwEgHQXw849cJrilpS5NeIjOWESAw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
-gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/cheggaaa/pb.v1 v1.0.25/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/gcfg.v1 v1.2.3/go.mod h1:yesOnuUOFQAhST5vPY4nbZsb/huCgGGXlipJsBn0b3o=
 gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
-gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8bDuhia5mkpMnE=
-gopkg.in/go-playground/validator.v9 v9.29.1/go.mod h1:+c9/zcJMFNgbLvly1L1V+PpxWdVbfP1avr/N00E2vyQ=
-gopkg.in/h2non/gock.v1 v1.0.15/go.mod h1:sX4zAkdYX1TRGJ2JY156cFspQn4yRWn6p9EMdODlynE=
 gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
 gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
 gopkg.in/ini.v1 v1.42.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
-gopkg.in/ini.v1 v1.44.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/ini.v1 v1.51.0 h1:AQvPpx3LzTDM0AjnIRlVFwFFGC+npRopjZxLJj6gdno=
 gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
-gopkg.in/ns1/ns1-go.v2 v2.0.0-20190730140822-b51389932cbc/go.mod h1:VV+3haRsgDiVLxyifmMBrBIuCWFBPYKbRssXB9z67Hw=
-gopkg.in/resty.v1 v1.9.1/go.mod h1:vo52Hzryw9PnPHcJfPsBiFW62XhNx5OczbV9y+IMpgc=
 gopkg.in/resty.v1 v1.12.0 h1:CuXP0Pjfw9rOuY6EP+UvtNvt5DSqHpIxILZKT/quCZI=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/square/go-jose.v2 v2.3.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
-gopkg.in/square/go-jose.v2 v2.5.1 h1:7odma5RETjNHWJnR32wx8t+Io4djHE1PqxCFx3iiZ2w=
-gopkg.in/square/go-jose.v2 v2.5.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
-gopkg.in/telegram-bot-api.v4 v4.6.4/go.mod h1:5DpGO5dbumb40px+dXcwCpcjmeHNYLpk0bp3XRNvWDM=
+gopkg.in/square/go-jose.v2 v2.4.1 h1:H0TmLt7/KmzlrDOpa1F+zr0Tk90PbJYBfsVUmRLrf9Y=
+gopkg.in/square/go-jose.v2 v2.4.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
@@ -1311,7 +1064,6 @@ gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
@@ -1319,6 +1071,7 @@ honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWh
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+istio.io/gogo-genproto v0.0.0-20190124151557-6d926a6e6feb/go.mod h1:eIDJ6jNk/IeJz6ODSksHl5Aiczy5JUq6vFhJWI5OtiI=
 k8s.io/api v0.16.9 h1:3vCx0WX9qcg1Hv4aQ/G1tiIKectGVuimvPVTJU4VOCA=
 k8s.io/api v0.16.9/go.mod h1:Y7dZNHs1Xy0mSwSlzL9QShi6qkljnN41yR8oWCRTDe8=
 k8s.io/apimachinery v0.16.9 h1:ESUZ4hMBUKF2kn2HBFL5zM/wQv4j/0uRbR7AjgqGJ4o=
@@ -1333,7 +1086,6 @@ 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 h1:UcxjrRMyNx/i/y8G7kPvLyy7rfbeuf1PYyBf973pgyU=
 k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a/go.mod h1:1TqjTSzOxsLGIKfj0lK8EeCP7K1iUG65v09OM0/WG5E=
-k8s.io/kubernetes v1.13.0/go.mod h1:ocZa8+6APFNC2tX1DZASIbocyYT5jHzqFVsY5aoB7Jk=
 k8s.io/utils v0.0.0-20190801114015-581e00157fb1 h1:+ySTxfHnfzZb9ys375PXNlLhkJPLKgHajBU0N62BDvE=
 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=
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/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 9c30ed9ffdb8424be38d273fd0a78f3351d6e0d5..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 {
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/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 256412c2917d39c0ff15db11121718ba983cd7ab..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, group, version, 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 efd16bdc6dad555f5a99bc4b2a02ee2a08202537..bb520d3df72c369eb4022246f20bb9e9aa1bd8b8 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 self.
+	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.GetServiceByServiceKey(url.Protocol, url.ServiceKey())
-		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 a89a0a1521ea8a2aea297c465c823db0e425fae9..e0cd6e0783fe4572e0a69cf0694d70f74ba46b42 100644
--- a/metadata/service/remote/service_proxy.go
+++ b/metadata/service/remote/service_proxy.go
@@ -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 71586cc1dcc87dc8644a25c9a89842bd84fe9f0a..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()
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_invoker_test.go b/protocol/dubbo/dubbo_invoker_test.go
index c7a9a2697529d096e57585347b0a8b0a535451b0..fecb3b01ab286d4900cba4628cb80ea6d9920a9a 100644
--- a/protocol/dubbo/dubbo_invoker_test.go
+++ b/protocol/dubbo/dubbo_invoker_test.go
@@ -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 17e7b57b45f2334e06b757ee07e3a9ef034c920a..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)
 	}
 }
 
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 5fa1f2ece337e268c4907465bdc69ced76641ce7..e355276c37f9d1babc12f7e3b694ec7a193aed80 100644
--- a/protocol/dubbo/impl/hessian.go
+++ b/protocol/dubbo/impl/hessian.go
@@ -63,7 +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 {
@@ -83,30 +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()
@@ -118,10 +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{})
 
@@ -133,9 +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
@@ -150,9 +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)
@@ -418,7 +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"
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/grpc_invoker.go b/protocol/grpc/grpc_invoker.go
index 02e7716115e6bb22f3de5a8c4d8a2131995e81c6..9647ecb9c9498c78d9df49a2223a905fda8c5c6e 100644
--- a/protocol/grpc/grpc_invoker.go
+++ b/protocol/grpc/grpc_invoker.go
@@ -63,7 +63,7 @@ func (gi *GrpcInvoker) Invoke(ctx context.Context, invocation protocol.Invocatio
 	}
 
 	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()
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/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 c4801c8db883353c82762162a7b658f964fc6ffa..5ef40649b1fcb209f29d9bbe871e47b1fcda8a59 100644
--- a/protocol/jsonrpc/http_test.go
+++ b/protocol/jsonrpc/http_test.go
@@ -44,7 +44,7 @@ type (
 	}
 
 	UserProvider struct {
-		user map[string]User
+		//user map[string]User
 	}
 )
 
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_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/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/server/rest_server.go b/protocol/rest/server/rest_server.go
index 3a1cb19396b1c129aa836e228991a22426065f4a..b0bf0e07bdd2c1351b1d9c1f55187515e3cc852c 100644
--- a/protocol/rest/server/rest_server.go
+++ b/protocol/rest/server/rest_server.go
@@ -257,6 +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)
@@ -297,6 +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/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..e97cc1a4ed6c85fa464d3398b4706e99f7a7f535 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
@@ -273,6 +272,10 @@ 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..1b607351af0b527f9ace4fa77268e100aa8fa2dc 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 {
@@ -294,30 +351,38 @@ 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 +471,7 @@ 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 +498,5 @@ 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 9008e6ecb79993626bac19a8fcf6870532386b01..b5d81eb0da0b7ae635b8a54e3002a9380a69a2fd 100644
--- a/registry/directory/directory_test.go
+++ b/registry/directory/directory_test.go
@@ -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/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..6783bf4684c09808326f04ee8ffb7c993045c896 100644
--- a/registry/nacos/listener.go
+++ b/registry/nacos/listener.go
@@ -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..de68e74906ecf14330d12bfb0ae42e86648ff9e3 100644
--- a/registry/nacos/registry.go
+++ b/registry/nacos/registry.go
@@ -274,7 +274,7 @@ 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 +287,16 @@ 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 83bd210fd39835f8ffacea22edaaff6ba7c41a4e..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
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 fe492c2b12712e0935ccd6fdd264e0fe8f24e213..3232ee624de909320b129a15adebef5aec5108ac 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 (
@@ -251,8 +251,7 @@ 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 +283,11 @@ 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 +298,9 @@ 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/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/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..414f045d1e0da91de0b6a184bee10647d3648ff1 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
@@ -209,6 +209,11 @@ 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)
diff --git a/remoting/getty/getty_client_test.go b/remoting/getty/getty_client_test.go
index 0b18e973cd2ea7a3f6aae59e822aaf68ee983331..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
 }
 
@@ -394,9 +396,11 @@ func InitTest(t *testing.T) (*Server, *common.URL) {
 		"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, "", "0.0.1", userProvider)
+	_, err = common.ServiceMap.Register("", url.Protocol, "", "0.0.1", userProvider)
+	assert.NoError(t, err)
 	invoker := &proxy_factory.ProxyInvoker{
 		BaseInvoker: *protocol.NewBaseInvoker(url),
 	}
@@ -429,7 +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..fd4c4898f2a74fae0cca1cf6c2e86e3e2f75017e 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)
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..852a5564f955e9734be58515cf0e6840e69f2f78 100644
--- a/remoting/zookeeper/client.go
+++ b/remoting/zookeeper/client.go
@@ -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
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_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..3eda6d9698e5ec244bb6c5763ebc8e459e03310e 100644
--- a/remoting/zookeeper/listener.go
+++ b/remoting/zookeeper/listener.go
@@ -135,9 +135,10 @@ 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)})
 			}
@@ -158,9 +159,10 @@ 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)}) {
@@ -362,9 +364,9 @@ func (l *ZkEventListener) ListenServiceEvent(conf *common.URL, zkPath string, li
 	}(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)