title: Chat project - load balance with socket.io
body: <p>I am involved in a development project of a chat where we are using node.js, socket.io (rooms) and mongodb. We are at the stage of performance testing and we are very concerned if the system needs a load balance.</p>
  
  <p>How can we develop if our project needs it? J'a researched on NGINX looks cool, but we are in doubt whether solves our problem as how the system will be a chat, we fear the servers are not ~talking~ with each other correctly ...</p>
  
  <p>Where do we go if we need a load balancing?</p>