Dequeue From Exception Queue Hangs Or Returns No Data
(Doc ID 1072790.1)
Last updated on MARCH 04, 2019
Applies to:Oracle Database - Enterprise Edition - Version 10.2.0.1 to 188.8.131.52 [Release 10.2 to 11.1]
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
When using DBMS_AQ.Dequeue to dequeue messages from an exception queue. The call consumes almost 99% of CPU time and records from the exception queue cannot be dequeued at all (hangs)
If the fix for unpublished defect 5457450 was installed, the call returns back to the caller, with no messages dequeued, if the mentioned fix was not installed, it hangs.
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