We are using OpenNebula v5.8.5 for a particular reason on CentOS v7.6
We are trying to setup FE nodes in our Dev environment and the setup went fine. However, once the FE01 was configured, we decided to use MySQL instead of SQLite. Hence, we installed MySQL/MariaDB on FE01 and configured the user accounts for the same. Ideally DB needs to be configured before starting the OpenNebula service for the first time. However, after configuring DB, the service wont start. So we rebooted the host and tried re-installing all OpenNebula packages. Even that didnt help and still keep on receiving the below error.
[root@SVDL-OPNEBFE1 ~]# systemctl start opennebula
Job for opennebula.service failed. See “systemctl status opennebula.service” and “journalctl -xe” for details.
[root@SVDL-OPNEBFE1 ~]#
[root@SVDL-OPNEBFE1 ~]# systemctl status opennebula
● opennebula.service - OpenNebula Cloud Controller Daemon
Loaded: loaded (/usr/lib/systemd/system/opennebula.service; enabled; vendor preset: disabled)
Active: failed (Result: start-limit) since Fri 2020-07-03 08:46:46 MDT; 5min ago
Process: 2009 ExecStopPost=/usr/share/one/follower_cleanup (code=exited, status=0/SUCCESS)
Process: 2006 ExecStart=/usr/bin/oned -f (code=exited, status=0/SUCCESS)
Process: 2004 ExecStartPre=/usr/sbin/logrotate -f /etc/logrotate.d/opennebula -s /var/lib/one/.logrotate.status (code=exited, status=0/SUCCESS)
Main PID: 2006 (code=exited, status=0/SUCCESS)
Jul 03 08:46:40 SVDL-OPNEBFE1.scc.gecas.net systemd[1]: Failed to start OpenNebula Cloud Controller Daemon.
Jul 03 08:46:40 SVDL-OPNEBFE1.scc.gecas.net systemd[1]: Unit opennebula.service entered failed state.
Jul 03 08:46:40 SVDL-OPNEBFE1.scc.gecas.net systemd[1]: opennebula.service failed.
Jul 03 08:46:46 SVDL-OPNEBFE1.scc.gecas.net systemd[1]: opennebula.service holdoff time over, scheduling restart.
Jul 03 08:46:46 SVDL-OPNEBFE1.scc.gecas.net systemd[1]: Stopped OpenNebula Cloud Controller Daemon.
Jul 03 08:46:46 SVDL-OPNEBFE1.scc.gecas.net systemd[1]: start request repeated too quickly for opennebula.service
Jul 03 08:46:46 SVDL-OPNEBFE1.scc.gecas.net systemd[1]: Failed to start OpenNebula Cloud Controller Daemon.
Jul 03 08:46:46 SVDL-OPNEBFE1.scc.gecas.net systemd[1]: Unit opennebula.service entered failed state.
Jul 03 08:46:46 SVDL-OPNEBFE1.scc.gecas.net systemd[1]: opennebula.service failed.
[root@SVDL-OPNEBFE1 ~]#