It is querying the existing channels with "db.CurrentReplicationChannels()" which is using mysql.replication_asynchronous_connection_failover table.
Then it is executing STOP SLAVE for 'channel', but it never checked beforehand if this channel was running.
Suggested fix, either:
use "show slaves status" to get the existing channel (=> replication_asynchronous_connection_failover is currently queried twice in the same function, it's queried again before removing replication source)
handle the fact that it's already stopped/non-existent to ensure idempotence
When having data in
But without any running replication
Operator fails withIt is failling in : https://github.com/percona/percona-xtradb-cluster-operator/blob/v1.12.0/pkg/controller/pxc/replication.go#L305-L348
It is querying the existing channels with "db.CurrentReplicationChannels()" which is using mysql.replication_asynchronous_connection_failover table.
Then it is executing STOP SLAVE for 'channel', but it never checked beforehand if this channel was running.
Suggested fix, either:
use "show slaves status" to get the existing channel (=> replication_asynchronous_connection_failover is currently queried twice in the same function, it's queried again before removing replication source)
handle the fact that it's already stopped/non-existent to ensure idempotence