DeadLock Occurs between a propagation receiver and job_queue_process when Two Advanced Queues with matching object_ids are propagating to each other Concurrently
(Doc ID 1450501.1)
Last updated on JANUARY 06, 2020
Applies to:Oracle Database - Enterprise Edition - Version 10.2.0.1 to 126.96.36.199 [Release 10.2 to 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
AQ bi-directional propagation between two databases intermittently hangs.
There are 2 queues in each of the databases <IN_QUEUE> and <OUT_QUEUE>. DB1's out_queue propagates messages to DB2's in_queue. DB2's out_queue propagates messages to DB1's in_queue.
Intermittently a hang arises between a propagation receiver process and a job_queue_process related to DML being performed on sys.aq$_propagation_status.
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