Connect a cluster on a single machine. One node starts a server on a given port, but if the address is in use, become a client, and connect to that port instead.
Create a node that starts a tcp server on a port, but if the address is in use, connect to that port instead.
Also, if the current server goes down, another node will become the server.
NOTE: this only works for a cluster on a single machine.
This is the code for both the server and the client.
var autonode = require'autonode'autonode// called when a connection is made, whether// this node turns out to be the client or the server.listenPORT