How to generate a trace file for a concurrent program

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To start the tuning process it is best to get a trace file from the program. The method of getting the trace file for a concurrent program is detailed below.
Step 1: Enable trace on the concurrent program
Responsibility: System Administrator 
Navigation: Concurrent > Program > Define
Query for the concurrent program
Check the box labeled, Enable Trace
Save the form.
Step 2: Execute the concurrent program
Go to the responsibility from which you can execute the concurrent program. Click on View > Requests and open the SRS form. 
select 
Run the concurrent program.
Note the request ID. It is 8888888
Step 3: Locate the trace file directory
Connect to the database and execute the following SQL,
SELECT *
  FROM v$parameter
 WHERE NAME = 'user_dump_dest'
Now get the Oracle process ID for this request. Execute the following script
SELECT oracle_process_id
  FROM fnd_concurrent_requests
 WHERE request_id = 8888888
Step 4: Get the trace file
Login to Unix. We need to go the trace file directory we found earlier. Execute the following command to change the directory.
Now we shall search for the trace file within this directory. The trace file will contain the Oracle Process ID and the schema

Step 5: Use TKPROF
Run the below tkprof command at the command prompt.
TKPROF < Trace File_Name.trc> SORT=fchela
Now verify the file and start tuning it.

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