Elasticsearch

[root@elk01 ~]# journalctl -u elasticsearch
-- Logs begin at Mon 2025-10-27 14:55:22 HKT, end at Mon 2025-10-27 14:57:44 HKT. --
Oct 27 14:55:32 elk01 systemd[1]: Starting Elasticsearch...
Oct 27 14:56:47 elk01 systemd[1]: elasticsearch.service: start operation timed out. Terminating.
Oct 27 14:56:59 elk01 systemd[1]: elasticsearch.service: Failed with result 'timeout'.
Oct 27 14:56:59 elk01 systemd[1]: Failed to start Elasticsearch.

Start the following service after elasticsearch.service,

# systemctl disable logstash
# systemctl disable metricbeat.service
# systemctl disable filebeat.service