title: Gridengine: error: commlib error: got select error (connection refused)
body: <p>I just installed gridengine &amp; getting error when doing <code>qstat</code>:</p>
  
  <pre><code>error: commlib error: got select error (Connection refused)
  error: unable to send message to qmaster using port 6444 on host "MyHost-VirtualBox": got send error
  </code></pre>
  
  <p><code>cat /var/spool/gridengine/qmaster/messages</code> gives:</p>
  
  <pre><code>main|"MyHost-VirtualBox"|W|local configuration "MyHost-VirtualBox" not defined - using global configuration
  main|"MyHost-VirtualBox"|E|global configuration not defined
  main|"MyHost-VirtualBox"|C|setup failed
  </code></pre>
  
  <p>setting <code>export SGE_ROOT</code> and running <code>sudo service /etc/init.d/gridengine-master start</code> didn't help. I think the service isn't running. Should I setup more env variables or a setup file?</p>
  
  <p>Running on Ubuntu. Installed by <code>sudo apt-get install gridengine-master gridengine-client</code> and accepted all defaults.</p>