OGG-01937
Extract is not configured to capture changes from thread {0}. To avoid data loss, the Extract must be dropped and recreated with the THREADS option to specify the correct number of RAC instances. See the Oracle GoldenGate administration documentation for the procedure to follow.
Cause
A redo thread was found that does not correspond to a known Extract producer thread. This occurs if the RAC configuration has more instances than were specified when ADD EXTRACT was issued.
Action
See the Oracle GoldenGate administration documentation for full procedure on changing the number of redo threads. You will: stop all processes, delete all processes, delete all trail files. Then: add back the primary Extract with THREADS set to the correct value, add back the local trail, add back the data pump, add back the remote trail, add back the Replicats, all with the same names as before. Then: start the processes.