title: determination elasticsearch recovery failure
body: <p>I was wondering how to determine the failure of a snapshot recovery.</p>
  
  <p>From the Elasticsearch documentation, cat-recovery can be used to determine if an index or indices are being recovered from some source.</p>
  
  <p>Per recovering shard, the stage, one of { init, index, start, translog, finalize, done }, tells how far along in the process recovery it’s in.</p>
  
  <p>In the case that for whatever reason recovery fails, would the stage come to rest at whatever stage failure occurred on? Or will stage of the failed shard transition to “done” and we can then determine failure of the recovery based on the color coded health status of said shard?</p>
  
  <p>Perhaps there’s a “failure” value that I’ve missed somewhere?</p>
  
  <p>Thanks!</p>