How to see, why a automatic relocate of a db service has been performed
We have Grid Infrastructure Release Update 19.28.0.0.250715 und use RAC with two nodes.
From time to time we observe, that a db service is automatically switched from node 1 to node 2. But I can't see a reason for this. There has been no change in hardware or load. I then have to relocate the service manually:
srvctl relocate service -d <database> -s <service> -oldinst <node2> -newinst <node1>
How can I see, why the automatically switch has happend? What log files can I use?