CManager

Lightweight cluster manager for node.js

Installation

$ npm install cmanager

Running Tests

Install dev dependencies.

$ npm install

Check code quality.

$ npm run lint

Features

• maintains number of workers (default = 1 worker per CPU core)
• kills unresponsive workers
• provides an easy to use, event-driven interface

Example

'use strict';
 
var cmanager = require('cmanager');
 
cmanager.on('master', function (workers) {
  console.log('I am the master.', workers);
});
 
cmanager.on('worker', function (worker) {
  console.log('I am a worker.', worker);
});
 
cmanager.on('kill', function (worker) {
  console.log('This worker has benn killed:', worker);
});
 
cmanager.init(); // only once

Configuration

Using cmanager.init

cmanager.init({ numberOfworkers: 4 });

Using cmanager.configure

cmanager.configure({ numberOfWorkers: 4 });

Options

• numberOfWorkers : Number of workers. defaults to os.cpus().length
• frequency : Frequency of worker reports. defaults to 1000
• maxAge : The maximum gap between two reports. defaults to 5000
• respawn : Respawn unresponsive workers. defaults to true

Deprecated features

// deprecated since v0.0.15
cmanager.fork();
 
// use cmanager.init instead
cmanager.init();

License

MIT