asked on

IIS6 w3wp.exe taking 100% CPU. IISState log file available to look at if it helps

Good afternoon experts.

I am running load balanced webservers (windows 2003 web edition) using NLB that is included with the OS. Each machine has dual XEON processors.

The problem is that both machine are running at 100% CPU.

Could you please have a look at my IISState log and see if you can tell me whats happening. I know it could be down to a rogue ASP page somewhere but your comments would be most welcome

Many thanks

Chris Dent

Hi,

Is the problem limited to a single site / application pool?

High processor usage is normally caused by a loop statement that doesn't ever exit.

Can you post the state logs?

Chris

Chris Dent

Oh and if you have no luck here it would be a really good idea to drop a pointer post in the IIS TA.

eWizard

ASKER

Sorry, was ment to post the logs yesterday.

You can download them from http://www.ewizards.co.uk/downloads/IISState.log (file size: 121 KB)

Thanks

Chris Dent

It would be worth checking the ASP Search pages as they are pretty much the only thing named in the logs. I can't see anything else that may be causing it in there.

For the code itself ensure that all objects are closed or set to nothing and any open database connections are terminated.

Chris

eWizard

ASKER

Thanks Chris, this is pretty much as I thought.... I have already vetted the pages with regards to loops, closed connections etc

Any other suggestions are welcome....

Regards

eWizard

Chris Dent

Does it access a database at all? There are some known issues with the Jet engine and IIS 6 that can cause high processor usage.

If that is the case you may want to consider this MS patch:

http://support.microsoft.com/?id=838306

Chris

eWizard

ASKER

It access SQL Server 2000 not MS Access so does not use JET..

Regards

eWizard

Chris Dent

Hmm sorry I couldn't help, I agree with you that it's probably the ASP code, but I'm not quite sure how you'd go about isolating it further.

It may be worth setting a limit on how much of the CPU the application pool uses while a more useful solution becomes apparent.

Chris

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Dave_Dietz

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alimu

suggest either award points to Dave (without feedback from asker it's difficult to ascertain whether this helped but his diagnosis appeared accurate).
or reduce to 0 points and PAQ. I think info in this would be useful in PAQ.