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gmonitor's Introduction

gmonitor(参考自cmonitor)

功能

  • 用于进程监控,管理

安装

go get -u github.com/zhaochuanyun/gmonitor

实现

  • 被监控进程启动后,按每300ms执行一次状态检测(通过发signal0信号检测),每个被监控进程在一个独立的协程里被监测。
  • gmonitor启动后会监听一个http端口用于接收管理命令(start|stop|restart|status|...)

使用方法

  • 配置文件:conf.json (json格式,支持注释),可以通过传入自定义的env及conf参数来重定义配置文件里的参数,如:./gmonitor -env dev -conf='port=8080;clog.mode=1',多个参数用;分隔
{
    "dev": {
        "port": 29118, // 配置监听端口
        "rootpath": "/home/zhaochuanyun/tools/go/ws/src/github.com/zhaochuanyun",
        "environ": "ulimit -n 65536", // 配置环境变量
        "svrs": {
            // demo
            "demo": "wsp/demo/demo" // key: 名字 value: 将与rootpath拼接在一起运行
        },
        "log": {
            "mode": 3, // 0: none, 1: localfile, 2: collector (数字代表bit位)
            "level": 15 // 0: none, 1: debug, 2: warn 4: error 8: info (数字代表bit位)
        }
    },
    "test": {
        "port": 29118, // 配置监听端口
        "rootpath": "/home/zhaochuanyun/tools/go/ws/src/github.com/zhaochuanyun",
        "environ": "ulimit -n 65536", // 配置环境变量
        "svrs": {
            // demo 
            "demo": "wsp/demo/demo"
        },
        "log": {
            "mode": 3, // 0: none, 1: localfile, 2: collector (数字代表bit位)
            "level": 15 // 0: none, 1: debug, 2: warn 4: error 8: info (数字代表bit位)
        }
    },
    "prod": {
        "port": 29118, // 配置监听端口
        "rootpath": "/home/zhaochuanyun/tools/go/ws/src/github.com/zhaochuanyun",
        "environ": "ulimit -n 65536", // 配置环境变量
        "svrs": {
            // demo 
            "demo": "wsp/demo/demo"
        },
        "log": {
            "mode": 2, // 0: none, 1: localfile, 2: collector (数字代表bit位)
            "level": 14 // 0: none, 1: debug, 2: warn 4: error 8: info (数字代表bit位)
        }
    }
}
  • 运行方法:gmonitor.sh [start|stop|restart|status|check]
  • 进程管理:gmonitor -[h|env|status|start|stop|restart] [dev|test|prod|all|["svrname"]]

注意

  • gmonitor的运行日志通过clog上报,也可记录在本地gmonitor.log日志文件里,注意:此gmonitor.log日志文件不会被切分,所以尽量保持较少的日志输出,建议通过clog方式上报日志
  • gmonitor启动监控进程后,被监控进程控制台日志gmonitor.log会输出到相应进程目录,最多保存30天,历史日志以gmonitor.{day}.log方式备份
  • 当gmonitor启动时,会根据conf.json配置启动所有被监控进程,当被监控进程已经启动过,并且符合配置要求时,gmonitor会自动将其加入监控列表
  • gmonitor会定期检查进程运行状态,如果进程异常退出,gmonitor会反复重试拉起,并且记录日志
  • 当被监控进程为多进程运行模式,gmonitor只监控管理父进程(子进程应实现检测父进程运行状态,并随父进程退出而退出)
  • 被监控进程以nohup方式启动,所以你的程序就不要自己设定daemon运行了
  • 每分钟通过ps方式检测一次进程状态,如果出现任何异常,比如有多份进程启动等,记日志
  • 由于gmonitor会同时启动内部httpserver(绑内网ip),所以也支持远程管理,比如在浏览器里输入:http://xxx.xxx.xxx.xxx:29118/?command=status&service=all

demo

$ gmonitor -env dev -status all

*****STATUS OK SERVICE LIST*****
demo PID:13539

*****STATUS FAIL SERVICE LIST*****

$ gmonitor -env dev -restart demo
SUCCESS

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