// cluster.js
var cluster = require('cluster');
var os = require('os');

cluster.setupMaster({
  exec: 'worker.js',
  args: []
});

cluster.fork();

// worker.js
var fs = require('fs');
var net = require('net');

net.createServer(function(conn) {
  conn.on('data', function(data) {
    var path = data.toString().trim();
    fs.createReadStream(path).pipe(conn);
  });
}).listen('/tmp/echo.sock');

console.log('worker listening');