Microsoft KB Archive/892491

= FIX: BizTalk Server 2004 performance may be poor and your CPU utilization may be high on the SQL Server-based server that hosts the BizTalk Server databases =

Article ID: 892491

Article Last Modified on 11/15/2007

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APPLIES TO


 * Microsoft BizTalk Server 2004 Enterprise Edition
 * Microsoft BizTalk Server 2004 Service Pack 1
 * Microsoft BizTalk Server 2004 Standard Edition
 * Microsoft BizTalk Server 2004 Partner Edition
 * Microsoft BizTalk Server 2004 Developer Edition

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SYMPTOMS
You may notice that Microsoft BizTalk Server performance is very poor and that the CPU utilization is 80 percent or more on the SQL Server-based server that hosts the BizTalk Server databases. You may also notice that the stored procedure bts_FindSubscriptions consumes many CPU cycles on the SQL Server-based server.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
You must have BizTalk Server 2004 Service Pack 1 (SP1) installed before you install this hotfix.

Restart requirement
You must restart the BizTalk Server Application Service after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version     Size     File name 11-Jan-2005 23:53  3.0.5372.0  221,184  Microsoft.xlangs.biztalk.engine.dll 11-Jan-2005 23:53  3.0.5372.0  217,088  Microsoft.xlangs.engine.dll Note Because of file dependencies, the most recent hotfix that contains these files may also contain additional files.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Under certain circumstances, a non-optimal query is generated to be used by the bts_FindSubscriptions stored procedure. In this scenario, the bts_FindSubscriptions stored procedure becomes very inefficient and consumes a larger than expected percentage of CPU cycles on the SQL Server-based server. In this scenario, the bts_FindSubscriptions stored procedure becomes a bottleneck for processing documents in BizTalk Server.

This problem occurs if any one of the values that are returned to the count field for the following query are more than 20: Use BizTalkMsgBoxDb SELECT TOP 5 COUNT(*) as count, uidPropID, vtValue FROM EqualsPredicates GROUP BY uidPropID, vtValue HAVING COUNT(*) > 5 ORDER BY count DESC Note  is a placeholder for the actual name of the BizTalk Server MessageBox database on your SQL Server-based server. If the name of your BizTalk MessageBox database is not, you must substitute the correct name of your BizTalk MessageBox database before you run this query.

Additional query words: BTS

Keywords: kbbug kbfix kbqfe kbbiztalk2004presp1fix kbhotfixserver kbbiztalk2004-2006swept KB892491

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