title: logstash data import status
body: <p>I have developed a Java EE Application using Apache Solr and now i want to migrate into elasticsearch.
  I have converted my api to use elasticsearch instead of solr but i have a big problem
  I don`t know how to get last data import status from logstash.
  In apache Solr mode i can get data import status from solr easily using:</p>
  
  <ul>
  <li>Query type: dataimport</li>
  <li>Command: status</li>
  </ul>
  
  <p>and i can get last update time, total imported documents count, import status , time taken , ...
  So, how can i implement this feature using elasticsearch?</p>