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Stream has switched from CCA mode to non-CCA after restart of Streams processes (Doc ID 1282385.1)

Last updated on DECEMBER 20, 2019

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.1 to 11.2]
Oracle Database Cloud Schema 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
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.


Streams environment has two Streams propagations defined between the same source and target database.

One is running in CCA mode and the other in non-CCA mode.

Previously both were running in CCA mode.

The message

Propagation Receiver (CCA) for Streams Capture CAP_CCA and Apply APP_CCA with pid=32, OS id=651 started.

is not being reported on the target database for the relevant Stream.

Tracing of the capture process using trace_level 127 may reveal that  an ORA-26802: Queue "STRMADMIN"."APPQ" has messages is being reported from target database preventing it from going into CCA mode.


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