title: rabbitmq server node is not starting
body: <p>I'm not able to start rabbitmq node.
  the logs are here</p>
  
  <pre><code>Dec 30 05:21:56 staging systemd[1]: Starting RabbitMQ Messaging Server...
  Dec 30 05:21:56 staging epmd[21037]: epmd: ALIVE2_REQ from non local address
  Dec 30 05:21:56 staging epmd[21037]: epmd: ALIVE2_REQ from non local address
  Dec 30 05:21:57 staging systemd[1]: rabbitmq-server.service: Main process exited, code=exited, status=1/FAILURE
  Dec 30 05:21:57 staging epmd[21037]: epmd: ALIVE2_REQ from non local address
  Dec 30 05:21:57 staging rabbitmq[20954]: Waiting for rabbit@staging ...
  Dec 30 05:21:57 staging rabbitmq[20954]: pid is 20971 ...
  Dec 30 05:21:57 staging rabbitmq[20954]: Error: process_not_running
  Dec 30 05:21:57 staging systemd[1]: rabbitmq-server.service: Control process exited, code=exited status=2
  Dec 30 05:21:57 staging systemd[1]: Failed to start RabbitMQ Messaging Server.
  Dec 30 05:21:57 staging systemd[1]: rabbitmq-server.service: Unit entered failed state.
  Dec 30 05:21:57 staging systemd[1]: rabbitmq-server.service: Failed with result 'exit-code'.
  dpkg: error processing package rabbitmq-server (--configure):
  </code></pre>
  
  <p>and epmd logs</p>
  
  <pre><code>epmd: Sat Dec 30 05:24:22 2017: epmd running - daemon = 0
  </code></pre>
  
  <p>and status is:</p>
  
  <pre><code>failed (Result: exit-code) since Sat 2017-12-30 05:21:57 UTC; 23min ago
  </code></pre>