https://github.com/vicanso/jtcluster

node cluster
https://github.com/vicanso/jtcluster

Last synced: 8 months ago
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node cluster

• Host: GitHub
• URL: https://github.com/vicanso/jtcluster
• Owner: vicanso
• Created: 2013-06-14T11:47:05.000Z (over 12 years ago)
• Default Branch: master
• Last Pushed: 2014-12-24T13:38:05.000Z (almost 11 years ago)
• Last Synced: 2024-12-27T19:44:23.442Z (10 months ago)
• Language: JavaScript
• Size: 273 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# jtcluster - 简单封装cluster功能，主要用于保证worker进程退出时重新启动

##特性

- 在worker进程出错退出的时候，会自动重新一个新的worker，保证worker数的不变

- 可以发送启动命令重启所有的worker

- 定时的发送消息给所有worker，worker收到后回应，如果连续几次没回应，则认为该worker卡住，强制退出。（主要是为了避免worker内有代码写错，出现无限循环之类的情况，这个不要看作监控子进程的性能）

##Demo

```js

var tmpCluster = new JTCluster({

  handler : function(){

    // 获取所有worker的信息

    tmpCluster.getWorkersInfo(function(err, infos){

      console.dir(infos);

    })

    var express = require('express');

    var app = express();

    app.get('/', function(req, res){

      // 输出worker的jtProcessName

      res.send('success ' + process.env.jtProcessName);

    });

    app.get('/restartAll', function(req, res){

      // 重启所有worker

      JTCluster.restartAll();

      res.send('restarting ' + process.env.jtProcessName);

    });

    app.get('/running', function(req, res){

      res.send('running ' + process.env.jtProcessName);

      // 使worker陷入死循环，模拟worker无响应，master自动重启worker的情况

      while(true){

      }

    });

    app.listen(8080);

  },

  // 用于fork worker的传给worker的参数

  envs : [

    {

      jtProcessName : 'tiger'

    },

    {

      jtProcessName : 'cuttlefish'

    }

  ]

});

```