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jvm-sandbox-repeater 仅仅提供了录制回放的能力，如果需要完成业务回归、实时监控、压测等平台，后面须要有一个数据中心负责采集数据的加工、存储、搜索，repeater-console提供了简单的demo示例；一个模块管理平台负责管理JVM-Sandbox各模块生命周期；一个配置管理平台负责维护和推送jvm-sandbox-repeater采集所须要的各种配置变更

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注意：目前项目代码默认启动standalone模式，不需要依赖任何服务端和存储，能够简单快速的实现单机的录制回放， 控制单机模式的开关在~/.sandbox-module/cfg/repeater.properties 配置文件的 repeat.standalone.mode=true，开启或关闭单机工作模式，关闭单机模式后，配置拉取/消息投递等都依赖repeater.properties中配置的具体url；如不想通过http拉取和消息投递的也可以自己实现Broadcaster和ConfigManager。稍后我们会公布一份录制回放所需的完整架构图以及jvm-sandbox-repeater在整个体系中的位置供大家工程使用做参考。

 编译源码部署：

 代码结构

[root@k8s-worker27-65 jvm-sandbox-repeater]# ls
bin   hessian-lite  pom.xml    repeater-aide    repeater-console  repeater-plugin-api   repeater-plugins  travis.sh
docs  LICENSE       Readme.md  repeater-client  repeater-module   repeater-plugin-core  target
[root@k8s-worker27-65 jvm-sandbox-repeater]# ls bin/
bootstrap.sh  install-local.sh     package.sh            repeater-logback.xml  sandbox-1.3.3-bin.tar
health.sh     install-repeater.sh  repeater-config.json  repeater.properties

 standalone模式，repeat.standalone.mode=true

[root@k8s-worker27-65 jvm-sandbox-repeater]# git cloen https://github.com/alibaba/jvm-sandbox-repeater.git[root@k8s-worker27-65 jvm-sandbox-repeater]# pwd
/root/work/traffic/jvm-sandbox-repeater
[root@k8s-worker27-65 jvm-sandbox-repeater]# cat bin/repeater.properties 
# 录制消息投递地址
broadcaster.record.url=http://127.0.0.1:8001/facade/api/record/save# 回放结果投递地址
broadcaster.repeat.url=http://127.0.0.1:8001/facade/api/repeat/save# 回放消息取数据地址
repeat.record.url=http://127.0.0.1:8001/facade/api/record/%s/%s# 配置文件拉取地址
repeat.config.url=http://127.0.0.1:8001/facade/api/config/%s/%s# 心跳上报配置
repeat.heartbeat.url=http://127.0.0.1:8001/module/report.json# 是否开启脱机工作模式
repeat.standalone.mode=true# 是否开启spring advice拦截
repeat.spring.advice.switch=false;

由于https://github.com/alibaba/jvm-sandbox-repeater/releases/download/v1.0.0/sandbox-1.3.3-bin.tar 下载费劲，我先现在了然后改成一下脚本不用每次下载

[root@k8s-worker27-65 jvm-sandbox-repeater]# cat bin/install-local.sh 
#!/usr/bin/env bash# repeater's target dir
REPEATER_TARGET_DIR=../target/repeater# exit shell with err_code
# $1 : err_code
# $2 : err_msg
exit_on_err()
{[[ ! -z "${2}" ]] && echo "${2}" 1>&2exit ${1}
}# package
sh ./package.sh || exit_on_err 1 "install failed cause package failed"# extract sandbox to ${HOME}
#curl -s https://github.com/alibaba/jvm-sandbox-repeater/releases/download/v1.0.0/sandbox-1.3.3-bin.tar | tar xz -C ${HOME} || exit_on_err 1 "extract sandbox failed"
cat sandbox-1.3.3-bin.tar | tar xz -C ${HOME} || exit_on_err 1 "extract sandbox failed"# copy module to ~/.sandbox-module
mkdir -p ${HOME}/.sandbox-module || exit_on_err 1 "permission denied, can not mkdir ~/.sandbox-module"
cp -r ${REPEATER_TARGET_DIR}/* ${HOME}/.sandbox-module  || exit_on_err 1 "permission denied, can not copy module to ~/.sandbox-module"

快速开始

1. 本地standalone工作（剥离服务端和存储，本机实现录制/回放）

step0 安装sandbox/启动bootstrap

[root@k8s-worker27-65 jvm-sandbox-repeater]# cd bin
[root@k8s-worker27-65 jvm-sandbox-repeater]# ./bootstrap.sh

安装后的结构：

[root@k8s-worker27-65 .sandbox-module]# ls /root/sandbox/
bin  cfg  example  install-local.sh  lib  module  provider  sandbox-module
[root@k8s-worker27-65 .sandbox-module]# ls /root/.sandbox-module/
cfg  plugins  repeater-bootstrap.jar  repeater-module.jar

启动命令：也可以自己手动启动

java -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000 -javaagent:/root/sandbox/lib/sandbox-agent.jar=server.port=8820\;server.ip=0.0.0.0 -Dapp.name=jettopro -Dapp.env=sit  -jar  /root/.sandbox-module/repeater-bootstrap.jar

java
-javaagent:${HOME}/sandbox/lib/sandbox-agent.jar=server.port=${repeater 启动端口}\;server.ip=0.0.0.0 \
-Dapp.name=${录制应用名} \
-Dapp.env=${录制环境} \
-jar application.jar

正常启动的是这个应用程序： 

java -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000  -jar  /root/.sandbox-module/repeater-bootstrap.jar

录播：

[root@k8s-worker27-65 ~]# curl -s 'http://127.0.0.1:8001/regress/slogan?Repeat-TraceId=127000000001156034386424510000ed'
<h1 align="center" style="color:red;margin-top:300px">JAVA是世界上最好的语言!</h1>

回放

curl -s 'http://127.0.0.1:8001/regress/slogan?Repeat-TraceId-X=127000000001156034386424510000ed'
<h1 align="center" style="color:red;margin-top:300px">Python是世界上最好的语言!</h1>

 此时回放是有问题的，因为没有监听自己的repeater-bootstrap.jar这个应用，监听方式有两种方

1.javaagent方式

java -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000 -javaagent:/root/sandbox/lib/sandbox-agent.jar=server.port=8820\;server.ip=0.0.0.0 -Dapp.name=jettopro -Dapp.env=sit  -jar  /root/.sandbox-module/repeater-bootstrap.jar

2.attach方式，先获取pid然后监听

[root@k8s-worker27-65 ~]# ps -ef |grep java
root     16713 13435 99 10:55 pts/1    00:00:33 java -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000 -jar /root/.sandbox-module/repeater-bootstrap.jar

 监听:

[root@k8s-worker27-65 ~]# cd ~/sandbox/bin/
[root@k8s-worker27-65 bin]# ls
sandbox.sh
[root@k8s-worker27-65 bin]# ./sandbox.sh -p 16713 -P 12580
cat: /root/.sandbox.token: 没有那个文件或目录NAMESPACE : defaultVERSION : 1.3.3MODE : ATTACHSERVER_ADDR : 0.0.0.0SERVER_PORT : 12580UNSAFE_SUPPORT : ENABLESANDBOX_HOME : /root/sandbox/bin/..SYSTEM_MODULE_LIB : /root/sandbox/bin/../moduleUSER_MODULE_LIB : /root/sandbox/sandbox-module;~/.sandbox-module;SYSTEM_PROVIDER_LIB : /root/sandbox/bin/../providerEVENT_POOL_SUPPORT : DISABLE

 然后就是可以开始录制和回放了

step1 开始录制

[root@k8s-worker27-65 ~]# curl -s 'http://127.0.0.1:8001/regress/slogan?Repeat-TraceId=127000000001156034386424510000ed'
<h1 align="center" style="color:red;margin-top:300px">C#是世界上最好的语言!</h1>[root@k8s-worker27-65 ~]# curl -s 'http://127.0.0.1:8001/regress/slogan?Repeat-TraceId=127000000001156034386424510000ed'
<h1 align="center" style="color:red;margin-top:300px">C++是世界上最好的语言!</h1>[root@k8s-worker27-65 ~]#

是不是看到了C++是世界上最好的语言；我们希望让这一刻永远定格；访问链接时，repeater插件通过Repeat-TraceId=127000000001156034386424510000ed，唯一追踪到了这一次请求，后台服务返回了C++是世界上最好的语言!，repeater把画面定格在了这一秒并将结果和127000000001156034386424510000ed绑定

step2 开始回放

[root@k8s-worker27-65 ~]# curl -s 'http://127.0.0.1:8001/regress/slogan?Repeat-TraceId-X=127000000001156034386424510000ed'
<h1 align="center" style="color:red;margin-top:300px">C++是世界上最好的语言!</h1>[root@k8s-worker27-65 ~]# curl -s 'http://127.0.0.1:8001/regress/slogan?Repeat-TraceId-X=127000000001156034386424510000ed'
<h1 align="center" style="color:red;margin-top:300px">C++是世界上最好的语言!</h1>[root@k8s-worker27-65 ~]# curl -s 'http://127.0.0.1:8001/regress/slogan?Repeat-TraceId-X=127000000001156034386424510000ed'
<h1 align="center" style="color:red;margin-top:300px">C++是世界上最好的语言!</h1>[root@k8s-worker27-65 ~]#

无论我们多少次访问这个地址，都将返回Repeat-TraceId=127000000001156034386424510000ed绑定的录制信息C++是世界上最好的语言!；如果重新访后又会将最新的返回结果绑定到Repeat-TraceId=127000000001156034386424510000ed（为了快速演示，将链路追踪的标志提到参数中进行透传了）

RegressController中提供了更多的测试用例，包括异步servlet、多线程调用、复杂结构返回对象，可以根据slogan类似的方式进行测试。

简单揭秘：/regress/slogan接口调用了RegressServiceImpl#slogan方法

private AtomicInteger sequence = new AtomicInteger(0);private String[] slogans = new String[]{"JAVA", "Python", "PHP", "C#", "C++", "Javascript", "GO"};public String slogan() {return slogans[sequence.getAndIncrement() % slogans.length] + "是世界上最好的语言!";
}

仔细查看该方法代码会发现，每次请求时都会返回不同的语言，为什么回放时每次都返回同样的结果呢？原因很简单，我们对RegressServiceImpl#slogan进行了mock，在回放时开启了mock能力，调用slogan的BEFORE事件时找到了合适值，直接利用ProcessControlException.throwReturnImmediately进行了直接返回，RegressServiceImpl的第72行代码在mock回放时永远不会走到。得益于在repeater-config.json中开启了java插件并且默认拦截了RegressServiceImpl#slogan方法，录制slogan时同时录制java子调用

想要知道应用层面发生了什么吗？请看《Slogan Demo究竟发生了什么》

 不编译非源码部署：

[root@k8s-worker27-65 bin]# ls sandbox-1.3.3-bin.tar repeater-stable-bin.tar 
repeater-stable-bin.tar  sandbox-1.3.3-bin.tar

1. sandbox-1.3.3-bin.tar：https://github.com/alibaba/jvm-sandbox-repeater/releases/download/v1.0.0/sandbox-1.3.3-bin.tar

1.1）这个是官网下载的解压后：

[root@k8s-worker27-65 ~]# ls sandbox
bin  cfg  example  install-local.sh  lib  module  provider  sandbox-module

1.2 ）配置文件：

[root@k8s-worker27-65 sandbox]# cat cfg/sandbox.properties  |grep -v "#" |grep -v "^$"
user_module=/root/sandbox-module;
server.charset=UTF-8
unsafe.enable=true

user_module=/root/sandbox-module;  配置为sandbox-module所在的路径即可

2. repeater-stable-bin.tar 自己编译或官网下载都可以 

https://github.com/alibaba/jvm-sandbox-repeater/releases/download/v1.0.0/repeater-stable-bin.tar

2.1）解压之后：

[root@k8s-worker27-65 ~]# ls sandbox-module/
cfg  plugins  repeater-bootstrap.jar  repeater-data  repeater-module.jar

2.2）配置文件：

[root@k8s-worker27-65 cfg]# cat repeater.properties  |grep -v "#" |grep -v "^$"
broadcaster.record.url=http://127.0.0.1:8001/facade/api/record/save
broadcaster.repeat.url=http://127.0.0.1:8001/facade/api/repeat/save
repeat.record.url=http://127.0.0.1:8001/facade/api/record/%s/%s
repeat.config.url=http://127.0.0.1:8001/facade/api/config/%s/%s
repeat.heartbeat.url=http://127.0.0.1:8001/module/report.json
repeat.standalone.mode=true
repeat.spring.advice.switch=false;

repeat.standalone.mode=true 
【1】true:就是本地模式不需要数据库存在录播文件，在本地目录中存储[root@k8s-worker27-65 sandbox-module]# ls sandbox-module/repeater-data/record/127000000001156034386424510000ed

【2】false：需要数据库mysql进行存储

录制自己的应用：

[root@k8s-worker27-65 aaaa]# cat repeater/cfg/repeater-config.json
{"useTtl" : true,"degrade" : false,"exceptionThreshold" : 1000,"sampleRate" : 10000,"pluginsPath" : null,"httpEntrancePatterns" : [ "^/greeting.*$" ],"javaEntranceBehaviors" : [],"javaSubInvokeBehaviors" : [ {"classPattern" : "hello.GreetingController","methodPatterns" : [ "greeting" ],"includeSubClasses" : false} ],"pluginIdentities" : [ "http", "java-entrance", "java-subInvoke", "mybatis", "ibatis" ],"repeatIdentities" : [ "java", "http" ]
}

自己应用的pid：26362 

[root@k8s-worker27-65 target]# ps -ef |grep java
root     26200 13435 11 14:20 pts/1    00:01:00 java -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000 -javaagent:/opt/aaaa/sandbox/lib/sandbox-agent.jar=server.port=8820;server.ip=0.0.0.0 -Dapp.name=jettopro -Dapp.env=sit -jar /opt/aaaa/repeater/repeater-bootstrap.jar
root     26362 13398  5 14:21 pts/0    00:00:22 java -jar gs-rest-service-0.1.0.jar

1）attach自己的pid进行监听

[root@k8s-worker27-65 bin]# pwd
/opt/aaaa/sandbox/bin
[root@k8s-worker27-65 bin]# ./sandbox.sh -p 26362 -P 12501NAMESPACE : defaultVERSION : 1.3.3MODE : ATTACHSERVER_ADDR : 0.0.0.0SERVER_PORT : 12501UNSAFE_SUPPORT : ENABLESANDBOX_HOME : /opt/aaaa/sandbox/bin/..SYSTEM_MODULE_LIB : /opt/aaaa/sandbox/bin/../moduleUSER_MODULE_LIB : /opt/aaaa/sandbox/sandbox-module;/opt/aaaa/repeater;SYSTEM_PROVIDER_LIB : /opt/aaaa/sandbox/bin/../providerEVENT_POOL_SUPPORT : DISABLE

2）测试自己的服务是否可以录制：因为是录制id一直在增加

[root@k8s-worker27-65 repeater]# pwd
/opt/aaaa/repeater
[root@k8s-worker27-65 repeater]# ls
cfg  plugins  repeater-bootstrap.jar  repeater-module.jar
[root@k8s-worker27-65 repeater]# curl -s 'http://localhost:8080/greeting?name=jettech01&Repeat-TraceId=127000000001156034386424510000ea'
{"id":25,"content":"Hello, jettech01!"}[root@k8s-worker27-65 repeater]# 
[root@k8s-worker27-65 repeater]# curl -s 'http://localhost:8080/greeting?name=jettech01&Repeat-TraceId=127000000001156034386424510000eb'
{"id":26,"content":"Hello, jettech01!"}[root@k8s-worker27-65 repeater]# 
[root@k8s-worker27-65 repeater]# curl -s 'http://localhost:8080/greeting?name=jettech01&Repeat-TraceId=127000000001156034386424510000ec'
{"id":27,"content":"Hello, jettech01!"}[root@k8s-worker27-65 repeater]# 
[root@k8s-worker27-65 repeater]# curl -s 'http://localhost:8080/greeting?name=jettech01&Repeat-TraceId=127000000001156034386424510000ed'
{"id":28,"content":"Hello, jettech01!"}[root@k8s-worker27-65 repeater]# 
[root@k8s-worker27-65 repeater]# curl -s 'http://localhost:8080/greeting?name=jettech01&Repeat-TraceId=127000000001156034386424510000ee'
{"id":29,"content":"Hello, jettech01!"}[root@k8s-worker27-65 repeater]#
[root@k8s-worker27-65 repeater]# ls
cfg  plugins  repeater-bootstrap.jar  repeater-data  repeater-module.jar有这个 repeater-data 目录说明录制成功

回放：多次执行一直都是id为25没有增加，说明定在了id为25这个条目上，可以对id=25进行多次回放，也可以选在id进行回放。但是id没有进行录制过的进行回放是回放不了的如id是30的

[root@k8s-worker27-65 repeater]# curl -s 'http://localhost:8080/greeting?name=jettech01&Repeat-TraceId-X=127000000001156034386424510000ea'
{"id":25,"content":"Hello, jettech01!"}[root@k8s-worker27-65 repeater]# 
[root@k8s-worker27-65 repeater]# curl -s 'http://localhost:8080/greeting?name=jettech01&Repeat-TraceId-X=127000000001156034386424510000eb'
{"id":26,"content":"Hello, jettech01!"}
[root@k8s-worker27-65 repeater]# curl -s 'http://localhost:8080/greeting?name=jettech01&Repeat-TraceId-X=127000000001156034386424510000ec'
{"id":27,"content":"Hello, jettech01!"}[root@k8s-worker27-65 repeater]# 
[root@k8s-worker27-65 repeater]# curl -s 'http://localhost:8080/greeting?name=jettech01&Repeat-TraceId-X=127000000001156034386424510000ed'
{"id":28,"content":"Hello, jettech01!"}[root@k8s-worker27-65 repeater]# 
[root@k8s-worker27-65 repeater]# curl -s 'http://localhost:8080/greeting?name=jettech01&Repeat-TraceId-X=127000000001156034386424510000ee'
{"id":29,"content":"Hello, jettech01!"}[root@k8s-worker27-65 repeater]# 
[root@k8s-worker27-65 repeater]# curl -s 'http://localhost:8080/greeting?name=jettech01&Repeat-TraceId-X=127000000001156034386424510000ef'
{"id":30,"content":"Hello, jettech01!"}[root@k8s-worker27-65 repeater]# 
[root@k8s-worker27-65 repeater]# curl -s 'http://localhost:8080/greeting?name=jettech01&Repeat-TraceId-X=127000000001156034386424510000ea'
{"id":25,"content":"Hello, jettech01!"}[root@k8s-worker27-65 repeater]# 

https://github.com/alibaba/jvm-sandbox-repeater/blob/master/docs/user-guide-cn.md#2-%E5%BF%AB%E9%80%9F%E5%BD%95%E5%88%B6%E8%87%AA%E5%B7%B1%E5%BA%94%E7%94%A8