My Oracle Support Banner

MEMORY LEAK 'KTC LATCH SUBH' ON AQ DEQUEUE (Doc ID 2760358.1)

Last updated on MAY 12, 2022

Applies to:

Oracle Database - Enterprise Edition - Version 18.8.0.0.0 and later
Information in this document applies to any platform.

Symptoms

ORA-04031: unable to allocate 40 bytes of shared memory ("shared pool","select obj#,index# from oid$...","KGLH0^34cbe0ff","kglHeapInitialize:temp")

Bug 31666684 - MEMORY LEAK 'KTC LATCH SUBH' ON AQ DEQUEUE

ORA-4031 seen while dequeuing a large number of AQ messages in a transaction. "KTC latch subh" appears to keep growing in V$SGASTAT

Changes

 

 

ORA-4031 seen while dequeuing a large number of AQ messages in a transaction."KTC latch subh" appears to keep growing in V$SGASTAT

 

SQL>  SELECT POOL,NAME,ROUND(BYTES/1024/1024,2) MB FROM V$SGASTAT where NAME='KTC latch subh';

Cause

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
Symptoms
Changes
Cause
Solution
References


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