Troubleshoot long running Concurrent Request in Apps 11i/R12

This post covers overview of How to troubleshoot long running concurrent request in  Oracle Apps 11i/R12
Step 1 : Check Concurrent Request ID of long running concurrent request from front end
Step 2 : Find SID, SERIAL# and SPID by running SQL (given below)
Step 3 : Enable event 10046 trace with level 12 using oradebug ( for 15-20 minute)
Step 4 : Disable trace (once you are happy with trace size)
Step 5 : Convert raw trace to TKPROF using various sort options like fchela, prsela, execpu
Step 6 : Check TKPROF out file to find root cause of slow concurrent request
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Step 1 : Check Request ID from Find Concurrent request screen (In my case Request ID is 2355)
Step 2 : Run below command to find SPID, provide concurrent request ID (2355 in my case) when prompted
SELECT a.request_id, d.sid, d.serial# ,d.osuser,d.process , c.SPID
FROM apps.fnd_concurrent_requests a,
apps.fnd_concurrent_processes b,
v$process c,
v$session d
WHERE a.controlling_manager = b.concurrent_process_id
AND c.pid = b.oracle_process_id
AND b.session_id=d.audsid
AND a.request_id = &Request_ID
AND a.phase_code = ‘R’;
REQUEST_ID        SID    SERIAL# OSUSER           PROCESS    SPID
—————-
   2355        514         28 applmgr                        17794   1633.
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Step 3.1 : Check and confirm SPID on Database Node
oraclevis11i@onlineappsdba>ps-ef | grep 1633
 ovis11i  1633     1  0 13:30:43 ?        0:03 oraclevis11i (LOCAL=NO)
Step 3.2 : Set OSPID (1633 in my case) for ORADEBUG
SQL> oradebug setospid 1633
—
Oracle pid: 68, Unix process pid: 1633, image: oraclevis11i@onlineappsdba
—
Step 3.3 : Enable trace for 10046 event with level 12
SQL> oradebug event 10046 trace name context forever, level 12

Step 3.4 : Locate Trace file as
SQL>oradebug tracefile_name
/oracle/apps/vis11idb/10.2.0/admin/vis11i_onlineappsdba/udump/vis11i_ora_1633.trc
Wait for 15-20 minutes
Step 4 : Disable trace
SQL> oradebug event 10046 trace name context off

Step 5: Create tkprof file like
tkprof  ‘/oracle/ apps/ vis11idb/ 10.2.0/ admin/ vis11i_onlineappsdba/ udump/ vis11i_ora_1633.trc’   ’/oracle/ apps/ vis11idb/ 10.2.0/ admin/ vis11i_onlineappsdba/ udump/ tkprof_1633.txt’ explain=apps/[apps_passwd]  fchela …
Step 6 : Check TKPROF file to find root cause of slow concurrent requet
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