How to fix the Oracle error ORA-15162: cluster in rolling downgrade?

In this post, you’ll learn more about the Oracle ErrorORA-15162: cluster in rolling downgrade with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15162: cluster in rolling downgrade

Reason for the Error ORA-15162: cluster in rolling downgrade

The cluster was already in the middle of rolling downgrade.

How to fix the Error ORA-15162: cluster in rolling downgrade ?

You can fix this error in Oracle by following the below steps

Rolling downgrade needs to be stopped before attempting to start again.

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