forever 替代工具 pm2 的介绍
[Goodbye node-forever, hello PM2][pm2] [pm2]: (http://devo.ps/blog/2013/06/26/goodbye-node-forever-hello-pm2.html)
看了工具的介绍, 觉得蛮方便的, 就是不支持 CoffeeScript 让人有点抓狂:
Github: https://github.com/Unitech/pm2
npm install -g pm2
特点
PM2 觉得 Forever 有一些不好用的地方:
- log 和监视的功能有限
- 进程和集群管理有限
- Aging codebase (升级 Node 容易导致应用失败)
目测比 Forever 好用一些… PM2 是前几个月刚写的, 还不完善: 列出来的计划有:
- Remote administration/status checking,
- Built-in inter-processes communication channel (message bus),
- V8 GC 内存泄露检测,
- Web 界面,
- Persistent storage for monitoring data,
- 邮件通知
Demo
盗链个截图:
然后本地安装尝试了一下:
➤➤ cat a.js
// Generated by CoffeeScript 1.6.3require('http').createServer(function(req, res){return res.end('ok');}).listen(3000);➤➤ pm2 start a.js
⌬ PM2 Configuration:{ script:'a.js', name:'a'}⌬ PM2 You can write the current configuration by adding -w option
⌬ PM2 Process launched
┌────────┬────┬───────┬────────┬───────────┬─────────────────────┬──────────┬────────────────────────────────┐│Script│ id │ PID │ status │Restarted│Last restart │ memory │ err logs │├────────┼────┼───────┼────────┼───────────┼─────────────────────┼──────────┼────────────────────────────────┤│ a.js │0│27515│ online │0│2013-06-2714:16:28│8.469 MB │/home/yong/.pm2/logs/a-err.log │➤➤ pm2 list
⌬ PM2 Process listing
┌────────┬────┬───────┬────────┬───────────┬─────────────────────┬───────────┬────────────────────────────────┐│Script│ id │ PID │ status │Restarted│Last restart │ memory │ err logs │├────────┼────┼───────┼────────┼───────────┼─────────────────────┼───────────┼────────────────────────────────┤│ a.js │0│27515│ online │0│2013-06-2714:16:28│10.102 MB │/home/yong/.pm2/logs/a-err.log │└────────┴────┴───────┴────────┴───────────┴─────────────────────┴───────────┴────────────────────────────────┘⌬ PM2 PM2 log file path :/home/yong/.pm2/pm2.log (type pm2 logs to see log streaming)⌬ PM2 monitoring :
a.js [27515][]0%[|||]10.102 MB
➤➤ pm2 kill
Daemon killed
➤➤ pm2 logs
Launching daemon
{ online:true, success:true, pid:27553}[PM2 DAEMON (l0)]"/opt/s/demo/a.coffee -省略省略...