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Services are Running on Wrong RAC Instances (Doc ID 965385.1)

Last updated on SEPTEMBER 16, 2021

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 10.1 to 10.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.


On a 4 node RAC cluster, database services are running on the wrong instances after instance restart.

Consider the following service configuration:

The service '<DATABASE_NAME2>' was running on all 4 instances when it should have been running on instance 2 (<INSTANCE2>) only.

This caused user sessions to be connected to the wrong instances, leading to load problems.

The same happened for another service (<DATABASE_NAME3>).


All instances had been restarted during maintenance window.


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