title: Pm2 process stops running
body: <p>I have a node chat application that needs to keep running on my server (ubuntu with nginx). The problem is that the application stops after a few hours or days.
  When I check on the server I see that my pm2 list is empty.</p>
  
  <p>The code I use to start my app:</p>
  
  <pre><code>pm2 start notification_server/index.js
  </code></pre>
  
  <p>It somehow looks as if pm2 is reset after a while. I also tried using forever, but then I run into the same problem. Is there some way to prevent the pm2 list from getting empty?</p>