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AQ multiple queue propagation (Q1 -> Q2 -> Q3) fails to propagate messages to the final target queue (Doc ID 187904.1)

Last updated on JULY 16, 2021

Applies to:

Oracle Database - Enterprise Edition - Version 8.1.6.0 and later
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

You are trying to setup multiple level propagation. (Q1 -> Q2 -> Q3)

Your purpose is to enqueue the message to queue Q1 which should be propagated to remote queue Q2 via database link.

Then, you want Q2 to propagate this message to another remote queue
via database link Q3

You find following problem in propagation :

Enqueue to Q1 ---> Propagation to Q2 ---> Dequeue from Q2........it works fine
Enqueue to Q2 ---> Propagation to Q3 ---> Dequeue from Q3........it works fine
Enqueue to Q1 ---> Propagation to Q2 ---> Propagation to Q3........it does not work

You do not receive any error in job_queue_process trace files or in the DBA_QUEUE_SCHEDULE view.

Changes

 

Cause

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