title: Kibana 4 'Discover' search error
body: <p>I indexed a dataset of geo-data records in ElasticSearch for analysis in Kibana. My issue is that the 'Discover' tab doesn't pick up the data but instead displays the error message</p>
  
  <pre><code>Discover: An error occurred with your request. Reset your inputs and try again.
  </code></pre>
  
  <p>In 'Settings', I could configure my data index just fine, and Kibana is picking up all the mapping fields with correct type/analysis/indexing metadata. 'Visualize' works fine, too. I can create my charts, add them to the dashboard, drill down - everything. Just the 'Discover' tab is broken for me. </p>
  
  <p>I'm running ElasticSearch 1.5.2, and tried with Kibana 4.0.1, 4.0.2 and 4.1-snapshot now (on Ubuntu 14.04), all with the same results.</p>
  
  <p>Another effect I'm noticing: the sidebar is not showing any 'Available Fields'. Only if I unfold the field settings and untick 'Hide Missing Fields' I'll get my list of schema fields. (These are greyed out as they are considered 'missing' by Kibana. But interestingly, clicking on 'Visualize' on one of them to chart their distribution works, again, perfectly fine.)</p>
  
  <p>My only suspicion is: my data doesn't have a timestamp field, so maybe that's what's messing things up. Although judging from the docs I'd assume that non-timeseries data should be supported.</p>
  
  <p>Any hints appreciated!</p>