title: Failed to start Elasticsearch (code=killed, signal=KILL)
body: <p>when i try to start</p>
  <p><code>$ sudo systemctl start elasticsearch.service'</code></p>
  <p>i get</p>
  <p>'Job for elasticsearch.service failed because a fatal signal was delivered to the control process.
  See &quot;systemctl status elasticsearch.service&quot; and &quot;journalctl -xe&quot; for details.'</p>
  <pre><code>
  $ sudo systemctl status elasticsearch.service
  
  elasticsearch.service - Elasticsearch
       Loaded: loaded (/lib/systemd/system/elasticsearch.service; enabled; vendo&gt;
       Active: failed (Result: signal) since Sat 2021-02-27 14:54:55 IST; 2min 3&gt;
         Docs: https://www.elastic.co
      Process: 46711 ExecStart=/usr/share/elasticsearch/bin/systemd-entrypoint -&gt;
     Main PID: 46711 (code=killed, signal=KILL)
  
  Feb 27 14:54:35 aasif-desktop systemd[1]: Starting Elasticsearch...
  Feb 27 14:54:55 aasif-desktop systemd[1]: elasticsearch.service: Main process &gt;
  Feb 27 14:54:55 aasif-desktop systemd[1]: elasticsearch.service: Failed with r&gt;
  Feb 27 14:54:55 aasif-desktop systemd[1]: Failed to start Elasticsearch.
  </code></pre>