How to fix the Oracle error PGA-21006: RRM initialization failed?

In this post, you’ll learn more about the Oracle ErrorPGA-21006: RRM initialization failed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PGA-21006: RRM initialization failed

Reason for the Error PGA-21006: RRM initialization failed

Cause: The initialization of the gateway RRM process failed.

How to fix the Error PGA-21006: RRM initialization failed ?

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

Action: This message is sent to the system log as an ALERT message when the initialization of the RRM failed before it could initialize the message facility or before it could determine the local LU name for which it was started.