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CDC (streams) capture spilling 100% of the queue messages (Doc ID 1220378.1)

Last updated on APRIL 04, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.1 to 10.2.0.4 [Release 10.2]
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.

Symptoms

Capture queue is spilling 100% of all the messages.

By generating the streams health check , we can see that the number of capture/propagation processes is different than the number of the subscribers from the sections
-capture/propagation processes
-Number of subscribers

Most probably you will find one or more extra subscribers with no corresponding propagation process.

Note: 273674.1 Streams Configuration Report and Health Check Script

Cause

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In this Document
Symptoms
Cause
Solution
 Bug 9032578  DROP_PROPAGATION does not clean V$BUFFERED_SUBSCRIBERS for Queue to Queue
References


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