Microsoft KB Archive/912276

= FIX: Performance may decrease over time when you use a long-running orchestration in BizTalk Server 2004 =

Article ID: 912276

Article Last Modified on 11/15/2007

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APPLIES TO


 * Microsoft BizTalk Server 2004 Standard Edition
 * Microsoft BizTalk Server 2004 Partner Edition
 * Microsoft BizTalk Server 2004 Enterprise Edition
 * Microsoft BizTalk Server 2004 Developer Edition

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SYMPTOMS
In Microsoft BizTalk Server 2004, you may experience a decrease in performance as measured by the number of documents that are processed per second. When you use a long-running orchestration, such as a singleton orchestration, BizTalk Server performance may decrease over time.

This problem may occur when the following conditions are true:
 * A long-running orchestration has some transactional or non-transactional scope inside a loop.
 * Messages are received in the scope.

Additionally, the BizTalkMsgBoxDb database may grow very large.



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

Warning You cannot roll back this hotfix from the BizTalk Server environment. Therefore, make sure that you fully test this hotfix in a test environment before you apply this hotfix to a production environment. Do not try to use Add or Remove Programs to remove this hotfix because this does not roll back the database changes, and leaves the BizTalk Server environment in an inconsistent state.

Prerequisites
You must have Microsoft BizTalk Server 2004 Service Pack 1 (SP1) installed to apply this hotfix. To obtain BizTalk Server 2004 SP1, visit the following Microsoft Web site:

http://www.microsoft.com/downloads/details.aspx?FamilyID=f4a5ab9e-d599-4cc8-abdf-ae6ae68bac3d

Restart requirement
You do not have to restart the computer 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.

Note Because of file dependencies, the most recent hotfix that contains these files may 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 more information about software update terminology, 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

Keywords: kbbug kbfix kbqfe kbpubtypekc kbbtsorchestration kbbiztalk2004presp2fix kbhotfixserver kbbts kbbiztalk2004-2006swept KB912276

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