Basic event emitting demonstration, showing the in-worker emits, but not the ability to emit beyond the worker boundary. This prevents me manually triggering the 'listening' event that a net.Server emits when it opens, and therefore stops me doing hot-patching when releasing in the same manner between a front-end webserver and a backend RabbitMQ…

gistfile1.js

var cluster = require('cluster');

if (cluster.isMaster) {
	var worker = cluster.fork();

	worker.on('test', function() {
		console.log('worker is listening');
	});
} else {
	process.on('test', function() {
		console.log('test');
	});

	setInterval(function() {
		console.log('still running');
	}, 500);

	setTimeout(function() {
		process.emit('test', 'some data');
	}, 2000);
}