title: Elastic Search not indexing **some** of the documents
body: <p>I have a java application, which is indexing json documents into ElasticSearch. I have observed that some of the documents go "missing" i.e. when I query ElasticSearch I dont find the document. And, this is not a consistent behaviour. I am seeing some of the documents go fine.</p>
  
  <p>I do not see any error in my application log (the indexing is in try-catch) OR even in the Elastic search log. Any thoughts on how to go about debugging this? </p>
  
  <p>I am using JEST based client to connect to elasticsearch via io-searchbox utility. And, elastic search version is 1.3.6.</p>