Wednesday 6 April 2016

How to Trace a Concurrent Request And Generate TKPROF File

1. Enable Tracing For The Concurrent Manager  Program 
Responsibility: System Administrator
Navigate: Concurrent > Program > Define
Query Concurrent Program
Select the Enable Trace Checkbox 
Turn On Tracing
Responsibility: System Administrator
Navigate: Profiles > System
Query Profile Option Concurrent: Allow Debugging
Set profile to Yes
 Run Concurrent Program With Tracing Turned On
Logon to the Responsibility that runs the Concurrent Program 
 In the Submit Request Screen click on Debug Options (B)
Select the Checkbox for SQL Trace


 2. Find Trace File Name
  Run the following SQL to find out the Raw trace name and location for the concurrent program.  The SQL prompts the user for the request id

SELECT ‘Request id: ‘||request_id ,  ‘Trace id: ‘||oracle_Process_id,  ‘Trace Flag: ‘||req.enable_trace,  ‘Trace Name:  ‘||dest.value||’/’||lower(dbnm.value)||’_ora_’||oracle_process_id||’.trc’,  ‘Prog. Name: ‘||prog.user_concurrent_program_name,  ‘File Name: ‘||execname.execution_file_name|| execname.subroutine_name ,  ‘Status : ‘||decode(phase_code,’R’,’Running’)  ||’-‘||decode(status_code,’R’,’Normal’),  ‘SID Serial: ‘||ses.sid||’,’|| ses.serial#,  ‘Module : ‘||ses.module  from fnd_concurrent_requests req, v$session ses, v$process proc,  v$parameter dest, v$parameter dbnm, fnd_concurrent_programs_vl prog,  fnd_executables execname  where req.request_id = &request  and req.oracle_process_id=proc.spid(+)  and proc.addr = ses.paddr(+)  and dest.name=’user_dump_dest’  and dbnm.name=’db_name’  and req.concurrent_program_id = prog.concurrent_program_id  and req.program_application_id = prog.application_id  and prog.application_id = execname.application_id  and prog.executable_id=execname.executable_id; 


To know the Trace file location


SELECT VALUE FROM V$DIAG_INFO WHERE NAME = 'Diag Trace';


3. TKPROF Trace File from concurrent request

Once you have obtained the Raw trace file you need to format the file using TKPROF.

$tkprof raw_trace_file.trc output_file explain=apps/apps sort=(exeela,fchela) sys=no

Where: raw_trace_file.trc: Name of trace file

output_file: tkprof out file

explain: This option provides the explain plan for the sql statements

sort: his provides the sort criteria in which all sql statements will be sorted.  This will bring the bad sql at the top of the outputfile.

sys=no:Disables sql statements issued by user SYS 

Another example: To get (TKPROF) sorted by longest running queries first and limits the results to the “Top 10” long running queries



$ tkprof <filename.trc> <output_filename> sys=no explain=apps/<password> sort='(prsela,exeela,fchela)’ print=10 

example: tkprof  CR30326048.trc CR30326048.tkp sort='(fchela,exeela,prsela)' explain=apps/pass






tkprof tracefile outputfile [explain= ] [table= ]
              [print= ] [insert= ] [sys= ] [sort= ]
  table=schema.tablename   Use 'schema.tablename' with 'explain=' option.
  explain=user/password    Connect to ORACLE and issue EXPLAIN PLAN.
  print=integer    List only the first 'integer' SQL statements.
  aggregate=yes|no
  insert=filename  List SQL statements and data inside INSERT statements.
  sys=no           TKPROF does not list SQL statements run as user SYS.
  record=filename  Record non-recursive statements found in the trace file.
  waits=yes|no     Record summary for any wait events found in the trace file.
  sort=option      Set of zero or more of the following sort options:
    prscnt  number of times parse was called
    prscpu  cpu time parsing
    prsela  elapsed time parsing
    prsdsk  number of disk reads during parse
    prsqry  number of buffers for consistent read during parse
    prscu   number of buffers for current read during parse
    prsmis  number of misses in library cache during parse
    execnt  number of execute was called
    execpu  cpu time spent executing
    exeela  elapsed time executing
    exedsk  number of disk reads during execute
    exeqry  number of buffers for consistent read during execute
    execu   number of buffers for current read during execute
    exerow  number of rows processed during execute
    exemis  number of library cache misses during execute
    fchcnt  number of times fetch was called
    fchcpu  cpu time spent fetching
    fchela  elapsed time fetching
    fchdsk  number of disk reads during fetch
    fchqry  number of buffers for consistent read during fetch
    fchcu   number of buffers for current read during fetch
    fchrow  number of rows fetched
    userid  userid of user that parsed the cursor

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