My Oracle Support Banner

Troubleshooting Databases Hang Due to Heavy Contention for 'library cache: mutex X' Waits (Oracle 11.2 and Later) (Doc ID 2051456.1)

Last updated on FEBRUARY 03, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Information in this document applies to any platform.

Purpose

Provides some basic information to enable DBAs to identify library cache mutex related problems and raises awareness on known issues and actions to be taken.

Troubleshooting Steps

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!


In this Document
Purpose
Troubleshooting Steps
 Identifying KGL mutex (library cache: mutex X) issues related to mutex recovery problems in 11.2.0.4
 Problem Synopsis
 How to Identify the pseudo-SID
 Workarounds
 Known Issues
 Patches
 
References

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.