My Oracle Support Banner

Queue Monitor (QMON) Processes Are Not Removing PROCESSED Messages or Changing the State of WAITING Messages in a RAC Cluster (Doc ID 732743.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.1 to 11.1.0.6 [Release 10.2 to 11.1]
Information in this document applies to any platform.

Symptoms

Intermittently in a RAC Cluster queue monitor slave processes are not removing PROCESSED messages which is leading to queue tables growing in size and eventually exhausting the space in the tablespace.

In addition to this messages enqueued with a DELAY specified and are in a WAITING state may not have their state changed to READY to make them available for dequeue at the appropriate time.

This issue can arise without any kind of reconfiguration having taken place in the RAC cluster.

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
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.