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AQ Subscriber Table Is Growing When Using Buffered Messages On A Multisubscriber Queue (Doc ID 2268542.1)

Last updated on APRIL 03, 2019

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Cloud Schema Service - Version N/A and later
Information in this document applies to any platform.


AQ subscriber table AQ$_<Queue Table>_S grows when using buffered messages
with recipients on a multiconsumer queue.

Consider below example:


It is observed that in case of persistent messages there is no entry inserted in AQ$_<QUEUE_TABLE_NAME>_S table, however in case of buffered messages there is an unusual entry inserted in AQ$_<QUEUE_TABLE_NAME>_S table even after messages are dequeued and processed.


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