var cluster = require('cluster'); 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'); cluster.fork(); }); // daemonize after setting up cluster return require('../')(); } var http = require('http'); http.createServer(function(req, res) { res.writeHead(200); res.end('process: ' + process.pid); // just a demo to cycle workers // DO NOT DO THIS IN PRODUCTION process.exit(); }).listen(8000);