How to fix the Oracle error CLSS-00100: configuration data access failed for key string?

In this post, you’ll learn more about the Oracle ErrorCLSS-00100: configuration data access failed for key string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

CLSS-00100: configuration data access failed for key string

Reason for the Error CLSS-00100: configuration data access failed for key string

Cause: Access of the configuration data indicated by key failed with error code error

How to fix the Error CLSS-00100: configuration data access failed for key string ?

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

Action: Verify that the clusterware installation was successful and that the OCR registry is accessible