Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Node Cluster - Enhance your node app by using all the cores of your processor.

Here's all you have to do to add clustering to your node.js application.

  • save this code as cluster.js, and run cluster.js instead of server.js (or /bin/www, or whatever it's called for your project)
  • the only line you'll need to change is the last line - it needs to point to the location of your server.js file
var cluster = require('cluster');

if (cluster.isMaster) {
  // Count the machine's CPUs
  var cpuCount = require('os').cpus().length;

  // Create a worker for each CPU
  for (var i = 0; i < cpuCount; i += 1) {
    cluster.fork();
  }

  // Listen for dying workers
  cluster.on('exit', function () {
    cluster.fork();
  });
} else {
  require('./server');
}
@chovy

This comment has been minimized.

Copy link

@chovy chovy commented Mar 16, 2015

Here's the video that talks about this: https://www.youtube.com/watch?v=6xIbVPyh9wo

@Nikhiladiga

This comment has been minimized.

Copy link

@Nikhiladiga Nikhiladiga commented Sep 2, 2020

Thank you!

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.