jmxtrans docker-compose 运行

以下是一个简单的demo，使用jmxtrans 进行jmx 指标的处理，项目使用docker-compose 运行
同时写入数据到graphite

环境准备

• docker-compose文件

 

version: "3"

services: 

  graphite:

    image: graphiteapp/graphite-statsd

    ports:

    - "80:80"

    - "2003-2004:2003-2004"

    - "2023-2024:2023-2024"

    - "8125:8125/udp"

    - "8126:8126"

  jmxtrans:

    build: 

      context: ./

      dockerfile: Dockerfile-jmxtrans

  app:

    build: ./

    image: dalongrong/java-jmx-openjdk

    container_name: app

    ports: 

    - "8080:8080"

    - "30384:30384"

• dockerfile 说明
  包含了一个spring boot 的项目app
  Dockerfile

 

FROM openjdk:8u222-jdk

LABEL AUTHOR="dalongrong"

LABEL EMAIL="1141591465@qq.com"

WORKDIR /

COPY webapi-0.0.1-SNAPSHOT.jar /webapi-0.0.1-SNAPSHOT.jar

COPY docker-entrypiont.sh /docker-entrypiont.sh

RUN chmod +x /docker-entrypiont.sh

EXPOSE 30384 8080

ENTRYPOINT [ "/docker-entrypiont.sh" ]

docker-entrypiont.sh:

#!/bin/sh

java \

-Dcom.sun.management.jmxremote \

-Dcom.sun.management.jmxremote.port=30384 \

-Dcom.sun.management.jmxremote.ssl=false \

-Dcom.sun.management.jmxremote.authenticate=false \

-Dcom.sun.management.jmxremote.rmi.port=30384 \

-Dcom.sun.management.jmxremote.local.only=false \

-Dcom.sun.management.jmxremote.host=app \

-Djava.rmi.server.hostname=app \

-jar /webapi-0.0.1-SNAPSHOT.jar

jmxtrans Dockerfile-jmxtrans

#!/bin/sh

java -jar /jmxtrans-270-all.jar -f /jmxtrans.json

jmxtrans 配置json 文件jmxtrans.json

   {

  "servers": [{

    "port": "30384",

    "host": "app",

    "numQueryThreads" : 4,

    "queries": [

      {

        "obj": "Tomcat:type=ThreadPool,name=\"http-nio-8080\"",

        "resultAlias":"http-nio-8080",

        "attr": ["acceptCount","currentThreadsBusy","currentThreadCount"],

        "outputWriters": [{

          "@class": "com.googlecode.jmxtrans.model.output.GraphiteWriterFactory",

          "port": 2003,

          "host": "graphite",

          "rootPrefix":"webapi",

          "typeNames" : ["name"],

          "flushStrategy" :"always",

          "poolSize" : 10

        }]

      },

      {

        "obj": "java.lang:type=Memory",

        "resultAlias":"Memory",

        "attr" : [ "HeapMemoryUsage", "NonHeapMemoryUsage" ],

        "outputWriters": [{

          "@class": "com.googlecode.jmxtrans.model.output.GraphiteWriterFactory",

          "port": 2003,

          "host": "graphite",

          "rootPrefix":"webapi",

          "typeNames" : ["name"],

          "flushStrategy" :"always",

          "poolSize" : 10

        }]

      }

      ,

      {

        "obj": "java.lang:type=ClassLoading",

        "resultAlias":"ClassLoading",

        "attr": ["TotalLoadedClassCount","LoadedClassCount","UnloadedClassCount"],

        "outputWriters": [{

          "@class": "com.googlecode.jmxtrans.model.output.GraphiteWriterFactory",

          "port": 2003,

          "rootPrefix":"webapi",

          "typeNames" : ["name"],

          "flushStrategy" :"always",

          "poolSize" : 10,

          "host": "graphite"

        }]

      }

    ]

  }]

}

配置说明

• jmx 服务app
  主要是通过运行的时候启动jmx 配置，具体可以参考docker-entrypiont.sh
• jmxtrans
  通过docker 运行，主要是配置文件jmxtrans.json 添加了几个查询，同时通过GraphiteWriter
  写入数据到Graphite
  几个参数的说明，如果看了官方的wiki 以及代码就会发现，有几个参数是必须写的，但是wiki 不是很清楚
  主要是rootPrefix,flushStrategy,typeNames

启动&&测试

• 启动

 

docker-compose up -d

• 效果

说明

以上是一个简单的docker-compose 运行，实际上我们可以进行扩展，添加更多的jmx 指标，对于kuberntes 的运行方式，可以参考类似的方式，只是
我们可以使用localhost 在pod 中运行多个容器的方式解决，还是比较方便的

参考资料

https://github.com/jmxtrans/jmxtrans/wiki/GraphiteWriter 
https://github.com/jmxtrans/jmxtrans/wiki/Queries 
https://github.com/rongfengliang/openjdk-docker-jmx/tree/jmxtrans 
https://github.com/rongfengliang/jmxtrans-docker-compose