Merge pull request #133 from YGrylls/hystrix_filter

Ftr: Hystrix filter for circuit break and service downgrade

config/consumer_config.go

@@ -52,6 +52,7 @@ type ConsumerConfig struct {
 	Registries   map[string]*RegistryConfig  `yaml:"registries" json:"registries,omitempty" property:"registries"`
 	References   map[string]*ReferenceConfig `yaml:"references" json:"references,omitempty" property:"references"`
 	ProtocolConf interface{}                 `yaml:"protocol_conf" json:"protocol_conf,omitempty" property:"protocol_conf"`
+	FilterConf   interface{}                 `yaml:"filter_conf" json:"filter_conf,omitempty" property:"filter_conf" `
 }
 
 func (*ConsumerConfig) Prefix() string {

config/provider_config.go

@@ -46,6 +46,7 @@ type ProviderConfig struct {
 	Services          map[string]*ServiceConfig  `yaml:"services" json:"services,omitempty" property:"services"`
 	Protocols         map[string]*ProtocolConfig `yaml:"protocols" json:"protocols,omitempty" property:"protocols"`
 	ProtocolConf      interface{}                `yaml:"protocol_conf" json:"protocol_conf,omitempty" property:"protocol_conf" `
+	FilterConf        interface{}                `yaml:"filter_conf" json:"filter_conf,omitempty" property:"filter_conf" `
 }
 
 func (*ProviderConfig) Prefix() string {

examples/hystrixfilter/dubbo/with-hystrix-go-client/app/client.go

+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+)
+
+import (
+	"github.com/apache/dubbo-go-hessian2"
+)
+
+import (
+	"github.com/apache/dubbo-go/common/logger"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
+	_ "github.com/apache/dubbo-go/registry/protocol"
+
+	_ "github.com/apache/dubbo-go/filter/impl"
+
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	_ "github.com/apache/dubbo-go/registry/zookeeper"
+)
+
+var (
+	survivalTimeout int = 10e9
+)
+
+// they are necessary:
+// 		export CONF_CONSUMER_FILE_PATH="xxx"
+// 		export APP_LOG_CONF_FILE="xxx"
+func main() {
+
+	hessian.RegisterJavaEnum(Gender(MAN))
+	hessian.RegisterJavaEnum(Gender(WOMAN))
+	hessian.RegisterPOJO(&User{})
+	getUserChan := make(chan string, 32)
+	getErrChan := make(chan string, 32)
+	getUser1Chan := make(chan string, 32)
+
+	config.Load()
+	logger.Debugf("[Start to test GetUser]")
+	for i := 0; i < 32; i++ {
+		go func() {
+			user := &User{}
+			err := userProvider.GetUser(context.TODO(), []interface{}{"A003"}, user)
+			getUserChan <- fmt.Sprintf("Result: %s ; Error: %v", user.Name, err)
+		}()
+	}
+	time.Sleep(time.Second * 4)
+
+	logger.Debugf("[Start to test GetErr, without error whitelist]")
+	for i := 0; i < 32; i++ {
+		go func() {
+			user := &User{}
+			err := userProvider.GetErr(context.TODO(), []interface{}{"A003"}, user)
+			getErrChan <- fmt.Sprintf("Result: %s ; Error: %v", user.Name, err)
+		}()
+	}
+	time.Sleep(time.Second * 4)
+
+	logger.Debugf("[Start to test illegal method GetUser1, with error whitelist]")
+	for i := 0; i < 32; i++ {
+		go func() {
+			user := &User{}
+			err := userProvider.GetUser1(context.TODO(), []interface{}{"A003"}, user)
+			getUser1Chan <- fmt.Sprintf("Result: %s ; Error: %v", user.Name, err)
+		}()
+	}
+	time.Sleep(time.Second * 4)
+	for i := 1; i < 32; i++ {
+		resGot := <-getUserChan
+		logger.Infof("[GetUser] %v", resGot)
+	}
+	for i := 1; i < 32; i++ {
+		resGot := <-getErrChan
+		logger.Infof("[GetErr] %v", resGot)
+	}
+	for i := 1; i < 32; i++ {
+		resGot := <-getUser1Chan
+		logger.Infof("[GetUser1] %v", resGot)
+	}
+	//initSignal()
+}
+
+func initSignal() {
+	signals := make(chan os.Signal, 1)
+	// It is not possible to block SIGKILL or syscall.SIGSTOP
+	signal.Notify(signals, os.Interrupt, os.Kill, syscall.SIGHUP,
+		syscall.SIGQUIT, syscall.SIGTERM, syscall.SIGINT)
+	for {
+		sig := <-signals
+		logger.Infof("get signal %s", sig.String())
+		switch sig {
+		case syscall.SIGHUP:
+			// reload()
+		default:
+			go time.AfterFunc(time.Duration(survivalTimeout)*time.Second, func() {
+				logger.Warnf("app exit now by force...")
+				os.Exit(1)
+			})
+
+			// 要么fastFailTimeout时间内执行完毕下面的逻辑然后程序退出，要么执行上面的超时函数程序强行退出
+			fmt.Println("app exit now...")
+			return
+		}
+	}
+}

examples/hystrixfilter/dubbo/with-hystrix-go-client/app/example_fallback_filter.go

+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package main
+
+import (
+	"time"
+)
+
+import (
+	"github.com/apache/dubbo-go/common/extension"
+	"github.com/apache/dubbo-go/common/logger"
+	"github.com/apache/dubbo-go/filter"
+	"github.com/apache/dubbo-go/filter/impl"
+	"github.com/apache/dubbo-go/protocol"
+)
+
+const (
+	EXAMPLE_FALLBACK_FILTER = "example_fallback"
+)
+
+//This is an example filter that handles result from hystrix filter
+//Define your filters and write your service downgrade strategy like this
+//TODO: Maybe a base fallback filter can be offered
+type ExampleFallbackFilter struct {
+}
+
+func GetExampleFallbackFilter() filter.Filter {
+	return &ExampleFallbackFilter{}
+}
+
+//The name should be the same as in your config
+//Put the filter in front of hystrix filter
+func init() {
+	extension.SetFilter(EXAMPLE_FALLBACK_FILTER, GetExampleFallbackFilter)
+}
+
+func (ff *ExampleFallbackFilter) Invoke(invoker protocol.Invoker, invocation protocol.Invocation) protocol.Result {
+	return invoker.Invoke(invocation)
+
+}
+func (ff *ExampleFallbackFilter) OnResponse(result protocol.Result, invoker protocol.Invoker, invocation protocol.Invocation) protocol.Result {
+	if err := result.Error(); err != nil {
+		hystrixError, ok := err.(*impl.HystrixFilterError)
+		if ok {
+			if hystrixError.FailByHystrix() {
+				logger.Debugf("[Example fallback filter]%s get error caused by %s", invocation.MethodName(), hystrixError.Error())
+				//Handle the error caused by Hystrix, including circuit breaking, concurrency limit and timeout
+				//The detailed error source can be got through hystrixError.Error()
+				//In this example we return a mock result under this circumstance
+				res := User{
+					"MockID",
+					"MockName",
+					55,
+					time.Now(),
+					Gender(MAN),
+				}
+				*(invocation.Reply().(*User)) = res
+				result.SetResult(&res)
+				result.SetError(nil)
+			}
+		}
+	}
+	//If the error is not caused by hystrix, the result doesn't come from hystrix filter or there's no error,
+	//we just return it here.
+	return result
+}

examples/hystrixfilter/dubbo/with-hystrix-go-client/app/user.go

+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+	"time"
+)
+
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
+)
+
+import (
+	"github.com/apache/dubbo-go/config"
+)
+
+type Gender hessian.JavaEnum
+
+var (
+	userProvider  = new(UserProvider)
+	userProvider1 = new(UserProvider1)
+	userProvider2 = new(UserProvider2)
+)
+
+func init() {
+	config.SetConsumerService(userProvider)
+	config.SetConsumerService(userProvider1)
+	config.SetConsumerService(userProvider2)
+}
+
+const (
+	MAN hessian.JavaEnum = iota
+	WOMAN
+)
+
+var genderName = map[hessian.JavaEnum]string{
+	MAN:   "MAN",
+	WOMAN: "WOMAN",
+}
+
+var genderValue = map[string]hessian.JavaEnum{
+	"MAN":   MAN,
+	"WOMAN": WOMAN,
+}
+
+func (g Gender) JavaClassName() string {
+	return "com.ikurento.user.Gender"
+}
+
+func (g Gender) String() string {
+	s, ok := genderName[hessian.JavaEnum(g)]
+	if ok {
+		return s
+	}
+
+	return strconv.Itoa(int(g))
+}
+
+func (g Gender) EnumValue(s string) hessian.JavaEnum {
+	v, ok := genderValue[s]
+	if ok {
+		return v
+	}
+
+	return hessian.InvalidJavaEnum
+}
+
+type User struct {
+	// !!! Cannot define lowercase names of variable
+	Id   string
+	Name string
+	Age  int32
+	Time time.Time
+	Sex  Gender // 注意此处，java enum Object <--> go string
+}
+
+func (u User) String() string {
+	return fmt.Sprintf(
+		"User{Id:%s, Name:%s, Age:%d, Time:%s, Sex:%s}",
+		u.Id, u.Name, u.Age, u.Time, u.Sex,
+	)
+}
+
+func (User) JavaClassName() string {
+	return "com.ikurento.user.User"
+}
+
+type UserProvider struct {
+	GetUsers func(req []interface{}) ([]interface{}, error)
+	GetErr   func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser  func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser0 func(id string, name string) (User, error)
+	GetUser1 func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser2 func(ctx context.Context, req []interface{}, rsp *User) error `dubbo:"getUser"`
+	GetUser3 func() error
+	Echo     func(ctx context.Context, req interface{}) (interface{}, error) // Echo represent EchoFilter will be used
+}
+
+func (u *UserProvider) Reference() string {
+	return "UserProvider"
+}
+
+type UserProvider1 struct {
+	GetUsers func(req []interface{}) ([]interface{}, error)
+	GetErr   func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser  func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser0 func(id string, name string) (User, error)
+	GetUser1 func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser2 func(ctx context.Context, req []interface{}, rsp *User) error `dubbo:"getUser"`
+	GetUser3 func() error
+	Echo     func(ctx context.Context, req interface{}) (interface{}, error) // Echo represent EchoFilter will be used
+}
+
+func (u *UserProvider1) Reference() string {
+	return "UserProvider1"
+}
+
+type UserProvider2 struct {
+	GetUsers func(req []interface{}) ([]interface{}, error)
+	GetErr   func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser  func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser0 func(id string, name string) (User, error)
+	GetUser1 func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser2 func(ctx context.Context, req []interface{}, rsp *User) error `dubbo:"getUser"`
+	GetUser3 func() error
+	Echo     func(ctx context.Context, req interface{}) (interface{}, error) // Echo represent EchoFilter will be used
+}
+
+func (u *UserProvider2) Reference() string {
+	return "UserProvider2"
+}

examples/hystrixfilter/dubbo/with-hystrix-go-client/app/version.go

+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+var (
+	Version = "2.6.0"
+)

examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/bin/load.sh

+#!/usr/bin/env bash
+# ******************************************************
+# DESC    : dubbogo app devops script
+# AUTHOR  : Alex Stocks
+# VERSION : 1.0
+# LICENCE : Apache License 2.0
+# EMAIL   : alexstocks@foxmail.com
+# MOD     : 2016-05-13 02:01
+# FILE    : load.sh
+# ******************************************************
+
+APP_NAME="APPLICATION_NAME"
+APP_ARGS=""
+SLEEP_INTERVAL=5
+MAX_LIFETIME=4000
+
+PROJECT_HOME=""
+OS_NAME=`uname`
+if [[ ${OS_NAME} != "Windows" ]]; then
+    PROJECT_HOME=`pwd`
+    PROJECT_HOME=${PROJECT_HOME}"/"
+else
+    APP_NAME="APPLICATION_NAME.exe"
+fi
+
+export CONF_CONSUMER_FILE_PATH=${PROJECT_HOME}"TARGET_CONF_FILE"
+export APP_LOG_CONF_FILE=${PROJECT_HOME}"TARGET_LOG_CONF_FILE"
+# export GOTRACEBACK=system
+# export GODEBUG=gctrace=1
+
+usage() {
+    echo "Usage: $0 start [conf suffix]"
+    echo "       $0 stop"
+    echo "       $0 term"
+    echo "       $0 restart"
+    echo "       $0 list"
+    echo "       $0 monitor"
+    echo "       $0 crontab"
+    exit
+}
+
+start() {
+    arg=$1
+    if [ "$arg" = "" ];then
+        echo "No registry type! Default client.yml!"
+    else
+        export CONF_CONSUMER_FILE_PATH=${CONF_CONSUMER_FILE_PATH//\.yml/\_$arg\.yml}
+    fi
+    if [ ! -f "${CONF_CONSUMER_FILE_PATH}" ];then
+        echo $CONF_CONSUMER_FILE_PATH" is not existing!"
+        return
+    fi
+    APP_LOG_PATH=${PROJECT_HOME}"logs/"
+    mkdir -p ${APP_LOG_PATH}
+    APP_BIN=${PROJECT_HOME}sbin/${APP_NAME}
+    chmod u+x ${APP_BIN}
+    # CMD="nohup ${APP_BIN} ${APP_ARGS} >>${APP_NAME}.nohup.out 2>&1 &"
+    CMD="${APP_BIN}"
+    eval ${CMD}
+    PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $2}'`
+    if [[ ${OS_NAME} != "Linux" && ${OS_NAME} != "Darwin" ]]; then
+        PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $1}'`
+    fi
+    CUR=`date +%FT%T`
+    if [ "${PID}" != "" ]; then
+        for p in ${PID}
+        do
+            echo "start ${APP_NAME} ( pid =" ${p} ") at " ${CUR}
+        done
+    fi
+}
+
+stop() {
+    PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $2}'`
+    if [[ ${OS_NAME} != "Linux" && ${OS_NAME} != "Darwin" ]]; then
+        PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $1}'`
+    fi
+    if [ "${PID}" != "" ];
+    then
+        for ps in ${PID}
+        do
+            echo "kill -SIGINT ${APP_NAME} ( pid =" ${ps} ")"
+            kill -2 ${ps}
+        done
+    fi
+}
+
+
+term() {
+    PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $2}'`
+    if [[ ${OS_NAME} != "Linux" && ${OS_NAME} != "Darwin" ]]; then
+        PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $1}'`
+    fi
+    if [ "${PID}" != "" ];
+    then
+        for ps in ${PID}
+        do
+            echo "kill -9 ${APP_NAME} ( pid =" ${ps} ")"
+            kill -9 ${ps}
+        done
+    fi
+}
+
+list() {
+    PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{printf("%s,%s,%s,%s\n", $1, $2, $9, $10)}'`
+    if [[ ${OS_NAME} != "Linux" && ${OS_NAME} != "Darwin" ]]; then
+        PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{printf("%s,%s,%s,%s,%s\n", $1, $4, $6, $7, $8)}'`
+    fi
+
+    if [ "${PID}" != "" ]; then
+        echo "list ${APP_NAME}"
+
+        if [[ ${OS_NAME} == "Linux" || ${OS_NAME} == "Darwin" ]]; then
+            echo "index: user, pid, start, duration"
+        else
+            echo "index: PID, WINPID, UID, STIME, COMMAND"
+        fi
+        idx=0
+        for ps in ${PID}
+        do
+            echo "${idx}: ${ps}"
+            ((idx ++))
+        done
+    fi
+}
+
+monitor() {
+    idx=0
+    while true; do
+        PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $2}'`
+        if [[ ${OS_NAME} != "Linux" && ${OS_NAME} != "Darwin" ]]; then
+            PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $1}'`
+        fi
+        if [[ "${PID}" == "" ]]; then
+            start
+            idx=0
+        fi
+
+        ((LIFE=idx*${SLEEP_INTERVAL}))
+        echo "${APP_NAME} ( pid = " ${PID} ") has been working in normal state for " $LIFE " seconds."
+        ((idx ++))
+        sleep ${SLEEP_INTERVAL}
+    done
+}
+
+crontab() {
+    idx=0
+    while true; do
+        PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $2}'`
+        if [[ ${OS_NAME} != "Linux" && ${OS_NAME} != "Darwin" ]]; then
+            PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $1}'`
+        fi
+        if [[ "${PID}" == "" ]]; then
+            start
+            idx=0
+        fi
+
+        ((LIFE=idx*${SLEEP_INTERVAL}))
+        echo "${APP_NAME} ( pid = " ${PID} ") has been working in normal state for " $LIFE " seconds."
+        ((idx ++))
+        sleep ${SLEEP_INTERVAL}
+        if [[ ${LIFE} -gt ${MAX_LIFETIME} ]]; then
+            kill -9 ${PID}
+        fi
+    done
+}
+
+opt=$1
+case C"$opt" in
+    Cstart)
+        start $2
+        ;;
+    Cstop)
+        stop
+        ;;
+    Cterm)
+        term
+        ;;
+    Crestart)
+        term
+        start $2
+        ;;
+    Clist)
+        list
+        ;;
+    Cmonitor)
+        monitor
+        ;;
+    Ccrontab)
+        crontab
+        ;;
+    C*)
+        usage
+        ;;
+esac
+

examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/common/app.properties

+# dubbogo application configure script
+# ******************************************************
+# DESC    : dubbogo environment variable
+# AUTHOR  : Alex Stocks
+# VERSION : 1.0
+# LICENCE : Apache License 2.0
+# EMAIL   : alexstocks@foxmail.com
+# MOD     : 2016-07-12 16:29
+# FILE    : app.properties
+# ******************************************************
+
+export TARGET_EXEC_NAME="user_info_client"
+# BUILD_PACKAGE="dubbogo-examples/user-info/client/app"
+export BUILD_PACKAGE="app"
+
+export TARGET_CONF_FILE="conf/client.yml"
+export TARGET_LOG_CONF_FILE="conf/log.yml"

examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/common/build.sh

+#!/usr/bin/env bash
+# ******************************************************
+# DESC    : build script
+# AUTHOR  : Alex Stocks
+# VERSION : 1.0
+# LICENCE : Apache License 2.0
+# EMAIL   : alexstocks@foxmail.com
+# MOD     : 2016-07-12 16:28
+# FILE    : build.sh
+# ******************************************************
+
+rm -rf target/
+
+PROJECT_HOME=`pwd`
+TARGET_FOLDER=${PROJECT_HOME}/target/${GOOS}
+
+TARGET_SBIN_NAME=${TARGET_EXEC_NAME}
+version=`cat app/version.go | grep Version | grep -v "Apache" | awk -F '=' '{print $2}' | awk -F '"' '{print $2}'`
+if [[ ${GOOS} == "windows" ]]; then
+    TARGET_SBIN_NAME=${TARGET_SBIN_NAME}.exe
+fi
+TARGET_NAME=${TARGET_FOLDER}/${TARGET_SBIN_NAME}
+if [[ $PROFILE == "dev" ||  $PROFILE == "test" ]]; then
+    # GFLAGS=-gcflags "-N -l" -race -x -v # -x会把go build的详细过程输出
+    # GFLAGS=-gcflags "-N -l" -race -v
+    # GFLAGS="-gcflags \"-N -l\" -v"
+    cd ${BUILD_PACKAGE} && GOOS=$GOOS GOARCH=$GOARCH go build -gcflags "-N -l" -x -v -i -o ${TARGET_NAME} && cd -
+else
+    # -s去掉符号表（然后panic时候的stack trace就没有任何文件名/行号信息了，这个等价于普通C/C++程序被strip的效果），
+    # -w去掉DWARF调试信息，得到的程序就不能用gdb调试了。-s和-w也可以分开使用，一般来说如果不打算用gdb调试，
+    # -w基本没啥损失。-s的损失就有点大了。
+    cd ${BUILD_PACKAGE} && GOOS=$GOOS GOARCH=$GOARCH go build -ldflags "-w" -x -v -i -o ${TARGET_NAME} && cd -
+fi
+
+TAR_NAME=${TARGET_EXEC_NAME}-${version}-`date "+%Y%m%d-%H%M"`-${PROFILE}
+
+mkdir -p ${TARGET_FOLDER}/${TAR_NAME}
+
+SBIN_DIR=${TARGET_FOLDER}/${TAR_NAME}/sbin
+BIN_DIR=${TARGET_FOLDER}/${TAR_NAME}
+CONF_DIR=${TARGET_FOLDER}/${TAR_NAME}/conf
+
+mkdir -p ${SBIN_DIR}
+mkdir -p ${CONF_DIR}
+
+mv ${TARGET_NAME} ${SBIN_DIR}
+cp -r assembly/bin ${BIN_DIR}
+cd ${BIN_DIR}/bin/ && mv load.sh load_${TARGET_EXEC_NAME}.sh && cd -
+
+platform=$(uname)
+# modify APPLICATION_NAME
+if [ ${platform} == "Darwin" ]; then
+    sed -i "" "s~APPLICATION_NAME~${TARGET_EXEC_NAME}~g" ${BIN_DIR}/bin/*
+else
+    sed -i "s~APPLICATION_NAME~${TARGET_EXEC_NAME}~g" ${BIN_DIR}/bin/*
+fi
+
+# modify TARGET_CONF_FILE
+if [ ${platform} == "Darwin" ]; then
+    sed -i "" "s~TARGET_CONF_FILE~${TARGET_CONF_FILE}~g" ${BIN_DIR}/bin/*
+else
+    sed -i "s~TARGET_CONF_FILE~${TARGET_CONF_FILE}~g" ${BIN_DIR}/bin/*
+fi
+
+# modify TARGET_LOG_CONF_FILE
+if [ ${platform} == "Darwin" ]; then
+    sed -i "" "s~TARGET_LOG_CONF_FILE~${TARGET_LOG_CONF_FILE}~g" ${BIN_DIR}/bin/*
+else
+    sed -i "s~TARGET_LOG_CONF_FILE~${TARGET_LOG_CONF_FILE}~g" ${BIN_DIR}/bin/*
+fi
+
+cp -r profiles/${PROFILE}/* ${CONF_DIR}
+
+cd ${TARGET_FOLDER}
+
+tar czf ${TAR_NAME}.tar.gz ${TAR_NAME}/*
+

examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/linux/dev.sh

+#!/usr/bin/env bash
+# ******************************************************
+# DESC    : build script for dev env
+# AUTHOR  : Alex Stocks
+# VERSION : 1.0
+# LICENCE : Apache License 2.0
+# EMAIL   : alexstocks@foxmail.com
+# MOD     : 2017-10-18 13:24
+# FILE    : dev.sh
+# ******************************************************
+
+
+set -e
+
+export GOOS=linux
+export GOARCH=amd64
+
+export PROFILE="dev"
+
+PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi

examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/linux/release.sh

+#!/usr/bin/env bash
+# ******************************************************
+# DESC    : build script for release env
+# AUTHOR  : Alex Stocks
+# VERSION : 1.0
+# LICENCE : Apache License 2.0
+# EMAIL   : alexstocks@foxmail.com
+# MOD     : 2016-07-12 16:34
+# FILE    : test.sh
+# ******************************************************
+
+
+set -e
+
+export GOOS=linux
+export GOARCH=amd64
+
+export PROFILE="release"
+export PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi

examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/linux/test.sh

+#!/usr/bin/env bash
+# ******************************************************
+# DESC    : build script for test env
+# AUTHOR  : Alex Stocks
+# VERSION : 1.0
+# LICENCE : Apache License 2.0
+# EMAIL   : alexstocks@foxmail.com
+# MOD     : 2016-07-12 16:34
+# FILE    : test.sh
+# ******************************************************
+
+
+set -e
+
+export GOOS=linux
+export GOARCH=amd64
+
+export PROFILE="test"
+export PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi

examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/mac/dev.sh

+#!/usr/bin/env bash
+# ******************************************************
+# DESC    : build script for dev env
+# AUTHOR  : Alex Stocks
+# VERSION : 1.0
+# LICENCE : Apache License 2.0
+# EMAIL   : alexstocks@foxmail.com
+# MOD     : 2017-10-18 13:24
+# FILE    : dev.sh
+# ******************************************************
+
+
+set -e
+
+export GOOS=darwin
+export GOARCH=amd64
+
+export PROFILE="dev"
+
+export PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+	. ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+	sh ${PROJECT_HOME}/assembly/common/build.sh
+fi

examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/mac/release.sh

+#!/usr/bin/env bash
+# ******************************************************
+# DESC    : build script for release env
+# AUTHOR  : Alex Stocks
+# VERSION : 1.0
+# LICENCE : Apache License 2.0
+# EMAIL   : alexstocks@foxmail.com
+# MOD     : 2016-07-12 16:34
+# FILE    : test.sh
+# ******************************************************
+
+
+set -e
+
+export GOOS=darwin
+export GOARCH=amd64
+
+export PROFILE="release"
+export PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi

examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/mac/test.sh

+#!/usr/bin/env bash
+# ******************************************************
+# DESC    : build script for test env
+# AUTHOR  : Alex Stocks
+# VERSION : 1.0
+# LICENCE : Apache License 2.0
+# EMAIL   : alexstocks@foxmail.com
+# MOD     : 2016-07-12 16:34
+# FILE    : test.sh
+# ******************************************************
+
+
+set -e
+
+export GOOS=darwin
+export GOARCH=amd64
+
+export PROFILE="test"
+export PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi

examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/windows/dev.sh

+#!/usr/bin/env bash
+# ******************************************************
+# DESC    : build script for dev env
+# AUTHOR  : Alex Stocks
+# VERSION : 1.0
+# LICENCE : Apache License 2.0
+# EMAIL   : alexstocks@foxmail.com
+# MOD     : 2017-10-18 13:24
+# FILE    : dev.sh
+# ******************************************************
+
+
+set -e
+
+export GOOS=linux
+export GOARCH=amd64
+
+export PROFILE="dev"
+PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi

examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/windows/release.sh

+#!/usr/bin/env bash
+# ******************************************************
+# DESC    : build script for release env
+# AUTHOR  : Alex Stocks
+# VERSION : 1.0
+# LICENCE : Apache License 2.0
+# EMAIL   : alexstocks@foxmail.com
+# MOD     : 2016-07-12 16:34
+# FILE    : test.sh
+# ******************************************************
+
+
+set -e
+
+export GOOS=windows
+export GOARCH=amd64
+
+export PROFILE="release"
+export PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi

examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/windows/test.sh

+#!/usr/bin/env bash
+# ******************************************************
+# DESC    : build script for test env
+# AUTHOR  : Alex Stocks
+# VERSION : 1.0
+# LICENCE : Apache License 2.0
+# EMAIL   : alexstocks@foxmail.com
+# MOD     : 2016-07-12 16:34
+# FILE    : test.sh
+# ******************************************************
+
+
+set -e
+
+export GOOS=windows
+export GOARCH=amd64
+
+export PROFILE="test"
+export PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi

examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/dev/client.yml

+# dubbo client yaml configure file
+
+
+check: true
+# client
+request_timeout : "3s"
+# connect timeout
+connect_timeout : "3s"
+
+# application config
+application_config:
+  organization : "ikurento.com"
+  name  : "BDTService"
+  module : "dubbogo user-info client"
+  version : "0.0.1"
+  owner : "ZX"
+  environment : "dev"
+
+registries :
+  "hangzhouzk":
+    # 对应java配置中address属性的zookeeper <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
+    protocol: "zookeeper"
+    timeout	: "3s"
+    address: "127.0.0.1:2181"
+    username: ""
+    password: ""
+  "shanghaizk":
+    protocol: "zookeeper"
+    timeout	: "3s"
+    address: "127.0.0.1:2182"
+    username: ""
+    password: ""
+
+references:
+  "UserProvider":
+    # 可以指定多个registry，使用逗号隔开;不指定默认向所有注册中心注册
+    registry: "hangzhouzk"
+    filter: "example_fallback,hystrix_consumer"
+    protocol : "dubbo"
+    interface : "com.ikurento.user.UserProvider"
+    cluster: "failover"
+    methods :
+      - name: "GetUser"
+        retries: 3
+
+protocol_conf:
+  dubbo:
+    reconnect_interval: 0
+    connection_number: 2
+    heartbeat_period: "5s"
+    session_timeout: "20s"
+    fail_fast_timeout: "5s"
+    pool_size: 64
+    pool_ttl: 600
+    getty_session_param:
+      compress_encoding: false
+      tcp_no_delay: true
+      tcp_keep_alive: true
+      keep_alive_period: "120s"
+      tcp_r_buf_size: 262144
+      tcp_w_buf_size: 65536
+      pkg_rq_size: 1024
+      pkg_wq_size: 512
+      tcp_read_timeout: "1s"
+      tcp_write_timeout: "5s"
+      wait_timeout: "1s"
+      max_msg_len: 10240
+      session_name: "client"
+
+filter_conf:
+  hystrix:
+    configs:
+      "Default":
+        timeout : 1000
+        max_concurrent_requests : 25
+        sleep_window : 5000
+        error_percent_threshold : 50
+        request_volume_threshold: 20
+      "userp":
+        timeout: 2000
+        max_concurrent_requests: 512
+        sleep_window: 4000
+        error_percent_threshold: 35
+        request_volume_threshold: 6
+      "userp_m":
+        timeout : 1200
+        max_concurrent_requests : 512
+        sleep_window : 6000
+        error_percent_threshold : 60
+        request_volume_threshold: 16
+        error_whitelist: [".*exception.*"]
+    default: "Default"
+    services:
+      "com.ikurento.user.UserProvider":
+        service_config: "userp"
+        methods:
+          "GetUser": "userp_m"
+          "GetUser1": "userp_m"
\ No newline at end of file

examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/dev/log.yml

+
+level: "debug"
+development: true
+disableCaller: false
+disableStacktrace: false
+sampling:
+encoding: "console"
+
+# encoder
+encoderConfig:
+  messageKey: "message"
+  levelKey: "level"
+  timeKey: "time"
+  nameKey: "logger"
+  callerKey: "caller"
+  stacktraceKey: "stacktrace"
+  lineEnding: ""
+  levelEncoder: "capitalColor"
+  timeEncoder: "iso8601"
+  durationEncoder: "seconds"
+  callerEncoder: "short"
+  nameEncoder: ""
+
+outputPaths:
+  - "stderr"
+errorOutputPaths:
+  - "stderr"
+initialFields: