You can use cluster module. Check this.

var cluster = require('cluster');
var http = require('http');
var numCPUs = require('os').cpus().length;

if (cluster.isMaster) {
  // Fork workers.
for (var i = 0; i < numCPUs; i++) {
cluster.fork();
}

cluster.on('exit', function(worker, code, signal) {
    console.log('worker ' + worker.process.pid + ' died');
 });
} else { 
// Workers can share any TCP connection
// In this case its a HTTP server
http.createServer(function(req, res) {
  res.writeHead(200);
  res.end("hello world\n");
}).listen(8000);
}

You can use cluster module. Check this.

var cluster = require('cluster');
var http = require('http');
var numCPUs = require('os').cpus().length;

if (cluster.isMaster) {
    // Fork workers.
    for (var i = 0; i < numCPUs; i++) {
        cluster.fork();
    }

    cluster.on('exit', function(worker, code, signal) {
        console.log('worker ' + worker.process.pid + ' died');
    });
} else {
    // Workers can share any TCP connection
    // In this case its a HTTP server
    http.createServer(function(req, res) {
        res.writeHead(200);
        res.end("hello world\n");
    }).listen(8000);
}

You can use cluster module. Check this https://devcenter.heroku.com/articles/node-cluster

var cluster = require('cluster');
var http = require('http');
var numCPUs = require('os').cpus().length;

if (cluster.isMaster) {
  // Fork workers.
for (var i = 0; i < numCPUs; i++) {
cluster.fork();
}

cluster.on('exit', function(worker, code, signal) {
    console.log('worker ' + worker.process.pid + ' died');
 });
} else { 
// Workers can share any TCP connection
// In this case its a HTTP server
http.createServer(function(req, res) {
  res.writeHead(200);
  res.end("hello world\n");
}).listen(8000);
}

You can use cluster module. Check this.

var cluster = require('cluster');
var http = require('http');
var numCPUs = require('os').cpus().length;

if (cluster.isMaster) {
  // Fork workers.
for (var i = 0; i < numCPUs; i++) {
cluster.fork();
}

cluster.on('exit', function(worker, code, signal) {
    console.log('worker ' + worker.process.pid + ' died');
 });
} else { 
// Workers can share any TCP connection
// In this case its a HTTP server
http.createServer(function(req, res) {
  res.writeHead(200);
  res.end("hello world\n");
}).listen(8000);
}