title: How to stop reindexing in Elasticsearch?
body: <p>I've started reindexing some of my data from one index to another using the Reindex API. The problem is that now I want to stop the reindexing process, even though it has not finished. I'm able to see the process running with this command:</p>
  
  <pre><code>GET _tasks?detailed=true&amp;actions=*reindex
  </code></pre>
  
  <p>But, how can I stop it?</p>
  
  <p>EDIT: Stopping the whole cluster is not a possibility because it is being used for other purposes at the same time.</p>