AQ-RAC: Rule-Based Subscribers Are Not Updated Correctly In AQ$_SUBSCRIBER_LWM
(Doc ID 2542580.1)
Last updated on APRIL 09, 2020
Applies to:Oracle Database - Enterprise Edition - Version 188.8.131.52 to 184.108.40.206.0 [Release 12.1 to 18]
Information in this document applies to any platform.
The issue is observed in AQ Sharded Queues where LWM for rule-based subscribers not updated correctly in SYS.AQ$_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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