Aqjmssession.Adddurablesubscriber performance degrades over time. (Doc ID 405335.1)

Last updated on OCTOBER 22, 2010

Applies to:

Oracle Server - Enterprise Edition - Version: 9.2.0.1 to 11.1.0.7 - Release: 9.2 to 11.1
Information in this document applies to any platform.

Symptoms

An OJMS application is using non-Durable subscribers.

dbms_aqjms.aq$_add_subscriber which is run implicitly when adding a non-Durable subscriber is taking 7 seconds to add a subscriber.

The AQ$_<QUEUE_TABLE_NAME>_S table contains thousands of entries relating to TSUB_* with a subscriber_type of 2 which is an ex-subscriber.

Cause

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