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[CENTREON-HA][24.10] My two database nodes are slaves.

  • October 6, 2026
  • 0 replies
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Hello,

My two database nodes are now slaves after an unsuccessful attempt to switch from slave to master.

I am looking for a way to switch my primary node back to MASTER status. Currently, it is the active one operating in the HA setup.

 

Previous command

# pcs resource move ms_mysql
    Error: to move promotable clone resources you must use the promotable clone id (ms_mysql-clone)

    Error: Errors have occurred, therefore pcs is unable to continue

 

# pcs resource move ms_mysql-clone
    Warning: Creating location constraint 'cli-ban-ms_mysql-clone-on-BDD_SECONDARY_NODE' with a score of -INFINITY for resource ms_mysql-clone on BDD_SECONDARY_NODE.

            This will prevent ms_mysql-clone from running on BDD_SECONDARY_NODE until the constraint is removed

            This will be the case even if BDD_SECONDARY_NODE is the last node in the cluste
r

 

Result:

[root@BDD_SECONDARY_NODE]# /usr/share/centreon-ha/bin/mysql-check-status.sh
Connection SLAVE Status 'BDD_PRIMARY_NODE' [OK]
Connection SLAVE Status 'BDD_SECONDARY_NODE' [OK]
Slave Thread Status [KO]
Error reports:
    No slave (maybe because we cannot check a server).
Position Status [SKIP]
Error reports:
    Skip because we can't identify a unique slave.