How to fix the Oracle error TNS-01191: Failed to initialize the local OS authentication subsystem?

In this post, you’ll learn more about the Oracle ErrorTNS-01191: Failed to initialize the local OS authentication subsystem with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-01191: Failed to initialize the local OS authentication subsystem

Reason for the Error TNS-01191: Failed to initialize the local OS authentication subsystem

Cause: Initialization of the security subsystem failed during listener startup or reload. The listener could not obtain system resources (memory, or file descriptors) needed for local OS authentication security mechanism.

How to fix the Error TNS-01191: Failed to initialize the local OS authentication subsystem ?

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

Action: Make sure that system resources like shared memory and heap memory are available for listener to execute properly. For further details, turn on tracing and execute the operation again. If the error persists, contact Oracle Support Services.