Upgrading from 21.2.4 to 21.2.6/21.2.8 the upgrade may fail with the following error:
The cause of failure could be a dis-alignment between the mysql root's password stored in myclient and the mysql root's password stored in mysql db.
This situation may occur if in 21.2.4 you tried to change the mysql root's password as documented at https://techdocs.broadcom.com/us/en/ca-enterprise-software/it-operations-management/spectrum/21-2/administrating/database-management/configure-mysql-root-password.html
but you did not complete the change of it updating it also in mysql.
Release : 21.2.4,21.2.6,21.2.8
Before running the upgrade, if you have tried to change the mysql root's password, you can check if there is a dis-alignment as follow:
If you are able to login you can proceed with the upgrade otherwise you have to complete the change the mysql root's password (if it was interrupted) or change it back to the default value.