Microsoft KB Archive/907735

= High CPU utilization during public folder replication in Exchange 2000 Server causes performance decrease =

Article ID: 907735

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Exchange 2000 Enterprise Server
 * Microsoft Exchange 2000 Server Standard Edition

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SYMPTOMS
When you configure public folder replication on a server that is running Microsoft Exchange 2000 Server, you may notice that the performance of the server decreases during replication schedules. When the performance issue occurs, you notice that CPU utilization is 100%. Additionally, messages may be held in the local queue.



CAUSE
This problem occurs when multiple replicas of public folders exist that contain many items on the Exchange 2000 Server.



Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

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

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
Because of file dependencies, this hotfix requires the August 2004 Exchange 2000 Server Post-Service Pack 3 Update Rollup.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

870540 Availability of the August 2004 Exchange 2000 Server Post-Service Pack 3 Update Rollup

Restart requirement
You do not have to restart the computer after you install 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 item in Control Panel.



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
This issue can occur when multiple replicas of Free/Busy public folders exist, and when these folders contain many items. One of the scenarios that can trigger this issue is when you replicate Free/Busy public folders by using a Lotus Notes calendar connector.

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Additional query words: XADM

Keywords: kbexchstore kbqfe kbfix kbexchange2000presp4fix kbbug kbpubtypekc KB907735

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