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Database hang due to "library cache lock" and "library cache: mutex X" waits (Doc ID 2995666.1)

Last updated on FEBRUARY 27, 2024

Applies to:

Oracle Database - Enterprise Edition - Version 19.18.0.0.0 and later
Oracle Database Cloud Exadata Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Information in this document applies to any platform.

Symptoms

On : 19.18.0.0.0 version, RDBMS

Database has experienced huge "library cache lock" and "library cache: mutex X" waits, which caused the whole database to hang.

Customer killed around 4000 blocked/locked sessions to come out of the hang situation.

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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