Queue Monitor (QMON) Consumes High Cpu When Retention Is Set for a Multi Consumer Queue (Doc ID 1484963.1)

Last updated on MAY 04, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.2 and later
Information in this document applies to any platform.

Symptoms

QMON CONSUMES HIGH CPU WHEN RETENTION IS SET FOR A MULTI CONSUMER QUEUE. After the retention period, the messages are available for dequeued immediately and the CPU utilization falls to normal.

 Alert log shows error , and same is observed in QMON trace.
 
 

 

Changes

 upgraded the database to 11.2

Cause

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