How to fix the Oracle error ORA-29705: ACTIVE_INSTANCE_COUNT is string which is incompatible with the value in other instances?

In this post, you’ll learn more about the Oracle ErrorORA-29705: ACTIVE_INSTANCE_COUNT is string which is incompatible with the value in other instances with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-29705: ACTIVE_INSTANCE_COUNT is string which is incompatible with the value in other instances

Reason for the Error ORA-29705: ACTIVE_INSTANCE_COUNT is string which is incompatible with the value in other instances

The value of the ACTIVE_INSTANCE_COUNT parameter must be the same in all Oracle cluster database instances.

How to fix the Error ORA-29705: ACTIVE_INSTANCE_COUNT is string which is incompatible with the value in other instances ?

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

Check your initialization parameter files in all instances and ensure that the ACTIVE_INSTANCE_COUNT parameter has the same value. Then restart the instance.