High Amount Of Shared Memory Allocated Into KGLH0 Heap In 12.1.0.2 (Doc ID 2096561.1)

Last updated on SEPTEMBER 13, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 to 12.1.0.2 [Release 12.1]
Information in this document applies to any platform.

Symptoms

A high amount of memory was allocated into KGLH0 heap of shared pool, this frequently leading to ORA-4031 errors. The shared pool size is large enough and the size of KGLH0 is significant compared with the size of shared pool size.
The growth is also constant in time and sometimes can stabilize to a large value without getting ORA-4031.

Cause

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