title: Strongloop controller in cluster mode results in EADDRINUSE
body: <p>I'm building an API with Strongloops's Loopback. I'm following <a href="http://docs.strongloop.com/display/LB/Create+a+simple+API" rel="nofollow">this tutorial</a> and so far it's working when I run the app with</p>
  
  <pre><code>slc run
  </code></pre>
  
  <p>However, if I try to run the app in clustered mode (to take advantage of a dual core server) the second process throws an EADDRINUSE error.</p>
  
  <p>My config.json reads</p>
  
  <pre><code>{
      "restApiRoot": "/v1",
      "host": "0.0.0.0",
      "port": 5000,
      "url": "http://0.0.0.0:5000/"
  }
  </code></pre>
  
  <p>much like in the example (except for the port). I haven't been able to find documentation of how (or if) should I modify this config. </p>
  
  <p>Has anyone ran slc in cluster mode?
  Does anyone have experience on running Node in clustered mode? (I know foreman allows something like this).</p>
  
  <p>Thanks!</p>