After submitting a concurrent request, some will show with a phase of RUNNING and never complete. When trying to cancel the request, the user will get "Cannot lock request".

 Concurrent Processing - How to Cancel a Concurrent Request Stuck in the Queue? [ID 749748.1]

Cause

Tried to Cancel a concurrent request. Used the "Cancel Request" button from the Administer > Concurrent > Manager form.

Got the following message:

Request xxxxxx can no longer be cancelled. The Concurrent Manager Process that was running this request has exited abnormally. The ICM will mark this request as completed with error.

 Solution

Manually cancel the request out of the queue with the following SQL against the offending
request id(s). This can be safely done while managers are up and running:




SQL> UPDATE fnd_concurrent_requests
     SET phase_code = 'C', status_code = 'X'
     WHERE request_id = ''; 
     commit;



Note:  To obtain request details prior to cancelling the request, use Note 134035.1 ANALYZEREQ.SQL - Detailed Analysis of One Concurrent Request. When prompted, provide the request id to be analyzed.  This can be useful for determining the reason why the request may be stuck in the queue.