Solr Issues - Timeout

Hello,

I am have many servers and only one I have issues to start Solr process. I am already uninstall and install it again but this issue persist.

[root@c6 logs]# systemctl restart cpanel-dovecot-solr

Job for cpanel-dovecot-solr.service failed because a timeout was exceeded. See "systemctl status cpanel-dovecot-solr.service" and "journalctl -xe" for details.
[root@c6 logs]#

[root@c6 ~]# journalctl -u cpanel-dovecot-solr -n 50 --no-pager
May 19 17:31:43 c6..com systemd[1]: cpanel-dovecot-solr.service start operation timed out. Terminating.
May 19 17:31:43 c6..com systemd[1]: Failed to start Solr for cPanel Dovecot.
May 19 17:31:43 cl6..com systemd[1]: Unit cpanel-dovecot-solr.service entered failed state.
May 19 17:31:43 c6..com systemd[1]: cpanel-dovecot-solr.service failed.
May 19 17:31:44 c6..com systemd[1]: Starting Solr for cPanel Dovecot...
May 19 17:31:44 c6..com solr[2108251]: Solr will start in SolrCloud mode by default in version 10, and you will have to provide --user-managed if you want to stay on the user-managed (aka. standalone) mode.
[root@c6 ~]#

Any idea? Any suggestion?

William Del Piero cPanel Staff

May 20, 2026 16:57

Hi,

Although it's difficult to determine the root cause from the errors posted, I recommend checking to see if the workaround below applies to your server:

Recent update including tzdata-java causes cPanel SOLR to not start

If you haven't already, I also suggest checking the Solr logs within /home/cpanelsolr/server/logs/ to see if any relevant errors are found.