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High Memory Allocations of KGLHD in Shared Pool (Doc ID 1435186.1)

Last updated on MAY 27, 2021

Applies to:

Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Oracle Database - Enterprise Edition - Version 11.1.0.7 to 11.2.0.3 [Release 11.1 to 11.2]
Information in this document applies to any platform.

Symptoms

The shared pool has high memory allocations of type KGLHD as shown by v$sgastat
or in heapdumps of the shared pool.
Buildup of this allocation leads to excessively high memory usage and may lead to an ORA-4031 error in the shared pool.
Flushing of the shared pool does not resolve the problem.



Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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