使用pm2管理系统进程

tags: 网站

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修改日期：2019年01月22日
版本：v1.0
作者：whl

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[toc]

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一、安装pm2

# 安装pm2
npm i -g pm2

# 检验安装
pm2 ls

[root@whl-bwg-dc3 ~]# pm2 ls

                        -------------

__/\\\\\\\\\\\\\\\\\\\\\\\\\\____/\\\\\\\\____________/\\\\\\\\____/\\\\\\\\\\\\\\\\\\_____
 _\\/\\\\\\/////////\\\\\\_\\/\\\\\\\\\\\\________/\\\\\\\\\\\\__/\\\\\\///////\\\\\\___
  _\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\//\\\\\\____/\\\\\\//\\\\\\_\\///______\\//\\\\\\__
   _\\/\\\\\\\\\\\\\\\\\\\\\\\\\\/__\\/\\\\\\\\///\\\\\\/\\\\\\/_\\/\\\\\\___________/\\\\\\/___
    _\\/\\\\\\/////////____\\/\\\\\\__\\///\\\\\\/___\\/\\\\\\________/\\\\\\//_____
     _\\/\\\\\\_____________\\/\\\\\\____\\///_____\\/\\\\\\_____/\\\\\\//________
      _\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\___/\\\\\\/___________
       _\\/\\\\\\_____________\\/\\\\\\_____________\\/\\\\\\__/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\_
        _\\///______________\\///______________\\///__\\///////////////__


                          Runtime Edition

        PM2 is a Production Process Manager for Node.js applications
                     with a built-in Load Balancer.

                Start and Daemonize any application:
                $ pm2 start app.js

                Load Balance 4 instances of api.js:
                $ pm2 start api.js -i 4

                Monitor in production:
                $ pm2 monitor

                Make pm2 auto-boot at server restart:
                $ pm2 startup

                To go further checkout:
                http://pm2.io/


                        -------------

[PM2] Spawning PM2 daemon with pm2_home=/root/.pm2
[PM2] PM2 Successfully daemonized
┌──────────┬────┬─────────┬──────┬─────┬────────┬─────────┬────────┬─────┬─────┬──────┬──────────┐
│ App name │ id │ version │ mode │ pid │ status │ restart │ uptime │ cpu │ mem │ user │ watching │
└──────────┴────┴─────────┴──────┴─────┴────────┴─────────┴────────┴─────┴─────┴──────┴──────────┘
 Use `pm2 show <id|name>` to get more details about an app
[root@whl-bwg-dc3 ~]# 

二、使用pm2管理进程

# 启动进程
# node.js
pm2 start app.js --name=server

# python
pm2 start test.py --name=python-test --interpreter=pythion3

# prometheus
pm2 start prometheus --name=prometheus -- --config.file=prometheus.yml

三、常用命令

# 创建进程并命名 
pm2 start app.js --name=server

# 重启进程
pm2 restart server

# 停止进程
pm2 stop server

# 查看进程日志
pm2 log server

# 监控所有进程
pm2 monit

# 以指定解释器启动进程
pm2 start test.py --interpreter=python3

# 以指定参数启动进程
pm2 start test.py -- --config=config.ini

四、PM集群模式

//TODO