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AQ-RAC: Rule-Based Subscribers Are Not Updated Correctly In AQ$_SUBSCRIBER_LWM (Doc ID 2542580.1)

Last updated on APRIL 09, 2020

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 12.1 to 18]
Information in this document applies to any platform.


The issue is observed in AQ Sharded Queues where LWM for rule-based subscribers not updated correctly in SYS.AQ$_SUBSCRIBER_LWM . 

If there is no valid message for a rule based subscriber in a shard the update of LWM entry is not happening. In this case the LWM entry in table 

SYS.AQ$_SUBSCRIBER_LWM is found to be stuck at 0.




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