Updating timeout duration of elasticsearch service

If you encounter the "Job for elasticsearch.service failed because a timeout was exceeded" message after trying the start the elasticsearch service add this line to your ovverride.conf file:

nano /etc/systemd/system/elasticsearch.service.d/override.conf

[Service]  
TimeoutStartSec=180

Reload the daemon:

systemctl daemon-reload

And try to start the elasticsearch service again. Increase the TimeoutStartSec duration if needed.