RE: BizTalk WMI performance issue

Hi WenJun,
Thanks for your answer. We really currently don't have SP2 applied on the
servers. We had installed it together with SP2 for SQL Server but then we had
to uninstall them as problems with closing connections to database started to
occure. We will try to apply it again after some period of testing.

Best regards
eXavier

""WenJun Zhang[msft]"" wrote:

Hi eXavier,

The cause of the showdown symtpom can come from various of sources, either
biztalk, WMI or the windows service application running in multi-instances
situation.

If the servers are Windows 2003 SP1 or earlier, I'd suggest you first take
a look at the following WMI patches included in Windows 2003 SP2.

You experience slow system performance when you run a program that uses the
WMI service on a Windows XP SP2-based computer or a Windows Server 2003
SP1-based computer
http://support.microsoft.com/default.aspx?scid=kb;EN-US;911262

WMI event buffering may delay the delivery of events to the WMI consumer in
Windows Server 2003
http://support.microsoft.com/kb/921473/en-us

Thoroughly and deeply troubleshooting into the problem requires live
debugging of the windows service application. However you can turn on WMI
verbose logging first to see if it helps us see anything on what is
happening. You can perform the test during the slowdown/throttling time.
The current logs maybe of use they are located at:
<drive>:\WINDOWS\system32\WBEM\Logs

To turn on verbose logging:

Please go to <drive>:\WINDOWS\system32\WBEM\Logs\ on the server and archive
all the log files from this location, so you don't have any noise.

1. start / run / mmc
2. file Add/Remove snap-in
3. add button
4. WMI Control / Add, agree to be the local machine
5. close / ok
6. Click WMI Control (local), icon should change
7. right click WMI Control and select properties
8. select the logging tab
9. change logging level to verbose, change the size to 196608
10. ok
11. see if the slowdown symptom occurs again
12. change logging back
13. close MMC
(Remember to turn verbose logging off after the test is completed as the
logs can grow quite large.)

Please update here on any findings or result.

Thanks and have a nice day.

Sincerely,

WenJun Zhang

Microsoft Online Community Support

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