title: Node express server stops responding (timed out) very often
body: <p>My project is almost a year old and was running very smoothly but from the past 2 months I am facing a server timeout issue, all the requests are going timed out after a while like 3 to 4 times a day. On PM2 restart it starts working fine again.</p>
  
  <p><a href="https://i.stack.imgur.com/NKbzu.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NKbzu.png" alt="terminal schreenshot"></a></p>
  
  <pre><code>Specs : 
  NODE V -  9.8.0 
  PM2 V -  2.10.1 
  EC2 instance -  M4 Large 
  </code></pre>