MySQL fails to start when Active IQ Unified Manager is reverted from a newer version to an older version
Applies to
- Active IQ Unified Manager 9.x ( AIQUM )
- OnCommand Unified Manager 9.x ( OCUM )
- Red Hat Enterprise Linux
- CentOS
Issue
When reverting from Unified Manager (UM) to earlier versions of Unified Manager, MySQL fails to start. This MySQL start failure will also cause the new install of the previous versions of UM to fail.
- The error from running
systemctl status mysqldis:
mysqld.service - MySQL Server
Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
Active: failed (Result: start-limit) since Tue 2020-05-05 16:38:36 -07; 7min ago
Docs: man:mysqld(8)
http://dev.mysql.com/doc/refman/en/using-systemd.html
May 05 16:38:36 <server_name> systemd[1]: Failed to start MySQL Server.
May 05 16:38:36 <server_name> systemd[1]: Unit mysqld.service entered failed state.
May 05 16:38:36 <server_name> systemd[1]: mysqld.service failed.
May 05 16:38:36 <server_name> systemd[1]: mysqld.service holdoff time over, scheduling restart.
May 05 16:38:36 <server_name> systemd[1]: start request repeated too quickly for mysqld.service
May 05 16:38:36 <server_name> systemd[1]: Failed to start MySQL Server.
May 05 16:38:36 <server_name> systemd[1]: Unit mysqld.service entered failed state.
May 05 16:38:36 <server_name> systemd[1]: mysqld.service failed.
- When checking
/var/log/mysqld.logthe following is seen:
2020-05-05T00:21:13.687193Z 0 [ERROR] [FATAL] InnoDB: Table flags are 0 in the data dictionary but the flags in file ./ibdata1 are 0x4000!
2020-05-04 17:21:13 0x7f758b34e780 InnoDB: Assertion failure in thread 140142823401344 in file ut0ut.cc line 918
"Cannot boot server version 80021 on data directory built by version 80023. Downgrade is not supported"
The error seen on the CLI during the UM install is:
Job for mysqld.service failed because the control process exited with error code. See "systemctl status mysqld.service" and "journalctl -xe" for details.
ERROR: MySQL pid missing after 600s, unable to continue.
Warning: %post(netapp-platform-base-9.5.0-2019.04.J68.x86_64) scriptlet failed, exit status 1
Non-fatal POSTIN scriptlet failure in rpm package netapp-platform-base-9.5.0-2019.04.J68.x86_64
FAILURE: netapp-platform-base package is installed, but in in a corrupt state. Install netapp-platform-base package and try again.