POiSON WORLD

E-Business Suite R12 Concurrent Processing, Output Post Processing related issues
Requests fail during Post Processing with the following errors :

‘Unable to find an Output Post Processor service to post-process request xxxxx.
Check that the Output Post Processor service is running’

Cause :

Incorrect data is present in the OPP queue table AQ$FND_CP_GSM_OPP_AQTBL_S, which occurs when the concurrent managers are not shutdown correctly.
A quick sql query shows orphaned OPP subscribers in APPLSYS.AQ$FND_CP_GSM_OPP_AQTBL_S, causing the select_random_subscriber routine to pick a non-running process.

Solution :

To resolve the issue test the following steps in a development instance and then migrate accordingly:
1. Find the active processes for OPP :

SELECT fcp.concurrent_process_id
FROM fnd_concurrent_queues fcq, fnd_concurrent_processes fcp
WHERE concurrent_queue_name = ‘FNDCPOPP’
AND fcq.concurrent_queue_id = fcp.concurrent_queue_id
AND fcq.application_id = fcp.queue_application_id
AND fcp.process_status_code = ‘A’;

Output example:

CONCURRENT_PROCESS_ID
———————
93557
93558

select name from APPLSYS.AQ$FND_CP_GSM_OPP_AQTBL_S ;

The name in the table is the concurrent_process_id prefixed with ‘OPP’.
The output should normally correspond to the output of first query: have the same number of records and have as name the concurrent_process_id of the running OPP processes prefixed by OPP

Output example:
NAME
——————————
OPP35562
OPP35563
OPP35564
OPP35565

3. If there are any old process which are left from previous runs of OPP processes, unsubscribe them via the following command:

exec fnd_cp_opp_ipc.unsubscribe(”);
Example:
exec fnd_cp_opp_ipc.unsubscribe(‘88933’);
exec fnd_cp_opp_ipc.unsubscribe(‘92625’);

4. Bounce the concurrent managers.
5. Retest some concurrent requests and confirm the post processing actions now complete successfully.