Portal:Cloud VPS/Admin/Runbooks/GaleraClusterOutOfSync

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The GaleraClusterSizeMismatch alert fires when the Galera wsrep_cluster_state_uuid status variable has multiple visible values.

The procedures in this runbook require admin permissions to complete.

Error / Incident

The datastore used by all OpenStack services might be in a split-brain situation.

Debugging

Find the node with a different wsrep_cluster_state_uuid, and do something about it.

Common issues

Add here any new common issues you find.

Related information

• Portal:Cloud VPS/Admin/Galera
• Portal:Cloud VPS/Admin/Troubleshooting#Galera

Old incidents

Add here any new tasks for incidents you might encounter.