How to fix the Oracle error CRS-09017: Error: Invalid or unknown reply received from the Cluster Logger Service?

In this post, you’ll learn more about the Oracle ErrorCRS-09017: Error: Invalid or unknown reply received from the Cluster Logger Service with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

CRS-09017: Error: Invalid or unknown reply received from the Cluster Logger Service

Reason for the Error CRS-09017: Error: Invalid or unknown reply received from the Cluster Logger Service

Cause: Error occurred in the data received.

How to fix the Error CRS-09017: Error: Invalid or unknown reply received from the Cluster Logger Service ?

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

Action: Make sure that the version of both master and client installation is same. Also, check the connectivity between master and client.