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

Last updated on JULY 23, 2013

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.6 to 11.2.0.3 [Release 11.1 to 11.2]
Information in this document applies to any platform.

Symptoms

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.

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms