demonstrate how cluster in node v0.10 doesn't close server handles when no workers need them

-

var cluster = require('cluster')
var net = require('net');
var spawn = require('child_process').spawn;

if(cluster.isMaster) {
  cluster.fork()

  cluster.on('exit', function() {
    //cluster.disconnect(); // if .disconnect() is called, it closes the serverHandlers

    setTimeout(function() {
      spawn('nc', ['-v', '-l', '4444'], {stdio: 'inherit'})
    }, 1000)
  })
} else {
  var port = 4444;
  var server = net.createServer()
    .listen(port, function() {
      console.log('pid %d listen on:', process.pid, port);
      process.nextTick(function() {
        process.disconnect()
      })
    })
    .on('error', function(er) {
      console.log('listen error:', er)
    })
}