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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 to [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$_propagation_status.


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