title: Elasticsearch, how to fix "No active shards"?
body: <p>I have logstash + elasticsearch + kibana setup for indexing logs. For some reason es stopped indexing the the data and I had to kill the running es instance and restart it. Typically when I did restarts, es will come up without problem. But now es not searchable using kibana.</p>
  
  <p>What I see using es tool is that one index is not assigned anywhere.</p>
  
  <pre><code>logstash-2013.07.22 4 r UNASSIGNED
  logstash-2013.10.05 0 r UNASSIGNED
  logstash-2013.10.05 0 p UNASSIGNED
  logstash-2013.10.05 1 p UNASSIGNED
  logstash-2013.10.05 1 r UNASSIGNED
  logstash-2013.10.05 2 r UNASSIGNED
  logstash-2013.10.05 2 p UNASSIGNED
  logstash-2013.10.05 3 r UNASSIGNED
  logstash-2013.10.05 3 p UNASSIGNED
  logstash-2013.10.05 4 p UNASSIGNED
  logstash-2013.10.05 4 r UNASSIGNED
  </code></pre>
  
  <p>And of course when I search using kibana, the query fails to search on this index.
  I don't see any error in elasticsearch.log.</p>
  
  <p>I have only one node running ES, though my default configuration has 1 replica configured.</p>