title: Where _cluster/settings storge in elasticsearch?
body: <p>When I change the <code>_cluster/settings</code> with es api, it will take effect immediately and will not reset after reboot.</p>
  <p>I guess cluster_settings is persisted to a file，where can I find this file?</p>
  <pre><code>curl -X PUT 127.0.0.1:9200/_cluster/settings -H 'Content-Type: application/json' -d '{
      &quot;persistent&quot; : {
          &quot;indices.recovery.max_bytes_per_sec&quot; : &quot;513mb&quot;
      }
  }'
  </code></pre>