title: openstack hypervisor list does not find my compute node
body: <p>I'm installing openstack ocata following the ubuntu install guide. When I run the command <code>openstack hypervisor list</code> I get the following answer:</p>
  
  <pre><code>The server is currently unavailable. Please try again at a later time.&lt;br /&gt;&lt;br /&gt;
  
  
  (HTTP 503) (Request-ID: req-fc57ec04-58a3-4ff6-b3bb-fd055a7c8845)
  </code></pre>
  
  <p>I'm just getting started with openstack and don't know which logs I should have a look at. So if someone some hints or knows the problem I would be grateful.</p>