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tkprof - not generating output [message #230840]

Fri, 13 April 2007 01:22

Brayan
Messages: 315
Registered: June 2002

Senior Member

Hi,

I have generated trace for event 10046.

The trace is around 20GB.

Now when I run the following command, tkprof just hangs and never comes out. Also, the output file remains size 0 only.

$ tkprof proddwdb_ora_16597.trc proddwdb_ora_16597.out explain=boidw/xxx

The user is the same user for which generated the trace.

Why this is hanging, is it because the size of trace is very big?

Brayan.

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Re: tkprof - not generating output [message #230852 is a reply to message #230840]

Fri, 13 April 2007 02:08

Michel Cadot
Messages: 68728
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
Account Moderator

Remove the "explain" option it will be faster and the option is useless as trace already contains execution plan.

Regards
Michel

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Re: tkprof - not generating output [message #230854 is a reply to message #230840]

Fri, 13 April 2007 02:09

rleishman
Messages: 3728
Registered: October 2005
Location: Melbourne, Australia

Senior Member

Try it without the EXPLAIN=boidw/xxx

Modern versions of the RDBMS will actually still produce the plan beacuse it is stored in the trace file. EXPLAIN can sometimes just slow you down.

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Re: tkprof - not generating output [message #230875 is a reply to message #230854]

Fri, 13 April 2007 02:52

Brayan
Messages: 315
Registered: June 2002

Senior Member

Hi,

I tried without Explain also. I waited for 30mins, still did not generate output file( I mean size is 0 bytes).

Regards,
Ronald.

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Re: tkprof - not generating output [message #230884 is a reply to message #230875]

Fri, 13 April 2007 03:48

Michel Cadot
Messages: 68728
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
Account Moderator

Oracle version?
OS?

Try a tusc/truss to see what your process is doing.

Regards
Michel

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Re: tkprof - not generating output [message #230887 is a reply to message #230884]

Fri, 13 April 2007 03:58

Brayan
Messages: 315
Registered: June 2002

Senior Member

Hi,

Oracle Ver - 9.2.0.7
OS - HP-UX B.11.11

Can you please tell me how to use this command. Is it only available for root?

Brayan.

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Re: tkprof - not generating output [message #230892 is a reply to message #230887]

Fri, 13 April 2007 04:06

Michel Cadot
Messages: 68728
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
Account Moderator

It is available for everyone.
Use man (command depends on OS).

Regards
Michel

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Re: tkprof - not generating output [message #230896 is a reply to message #230892]

Fri, 13 April 2007 04:25

Brayan
Messages: 315
Registered: June 2002

Senior Member

Hi,

Quote:

Try a tusc/truss to see what your process is doing.

Both these command are not available for me.

Brayan.

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Re: tkprof - not generating output [message #230899 is a reply to message #230896]

Fri, 13 April 2007 04:39

Brayan
Messages: 315
Registered: June 2002

Senior Member

Hi,

I have generated the required output from "glance" utility.

As you see in the atatched file, both read/write process are working.
But it it not generating any output.

Brayan.

Attachment: process.log
(Size: 1.62KB, Downloaded 1294 times)

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Re: tkprof - not generating output [message #230902 is a reply to message #230896]

Fri, 13 April 2007 04:48

Michel Cadot
Messages: 68728
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
Account Moderator

Ask you SA (system administrator) to know which tool it is for your OS and to allow you to work with it.

Regards
Michel

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Re: tkprof - not generating output [message #230905 is a reply to message #230902]

Fri, 13 April 2007 05:07

Brayan
Messages: 315
Registered: June 2002

Senior Member

Hi,

It has finished, It took 4 hrs to generate tkprof output.

Thanks a lot for your suggestions.

Brayan.

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Re: tkprof - not generating output [message #230929 is a reply to message #230905]

Fri, 13 April 2007 07:13

Michel Cadot
Messages: 68728
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
Account Moderator

4 hours to analyze a 20GB trace file, I don't think it is too much.
Just my opinion.

Regards
Michel

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