CPU Utilization Is Unexpectedly High After Exchange Virtual Server Fails Over to Another Cluster Node

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Article ID: 821264 - View products that this article applies to.
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SYMPTOMS

When you run Microsoft Exchange Server in a Microsoft Windows Server 2003 or a Microsoft Windows 2000 cluster environment, and the Exchange virtual server fails over to another cluster node, CPU utilization may be unexpectedly high on the new node. This issue occurs approximately one or two minutes after the failover occurs.

Microsoft Outlook clients may also experience problems if they try to connect to the Exchange server when the server is under a heavy load and when CPU utilization remains high for a long time.

RESOLUTION

Windows Server 2003

A supported hotfix is 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 software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

No prerequisites are required.

Restart Requirement

You must restart your 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) 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.
Windows Server 2003

   Date         Time   Version            Size    File name
   --------------------------------------------------------------
   06-Jun-2003  18:11  5.2.3790.51       564,224  Rpcrt4.dll       
   09-May-2003  05:07                        211  Branches.inf
   06-Jun-2003  18:36                     10,091  Kb821264.cat
   06-Jun-2003  18:15                        354  Updatebr.inf
   06-Jun-2003  18:15                      5,022  Update_rtmqfe.inf

Windows Server 2003 64-bit Edition

   Date         Time   Version            Size    File name
   --------------------------------------------------------------
   06-Jun-2003  17:50  5.2.3790.51     2,128,384  Rpcrt4.dll       IA-64
   06-Jun-2003  18:11  5.2.3790.51       539,648  Wrpcrt4.dll      x86
   09-May-2003  05:07                        211  Branches.inf
   06-Jun-2003  18:36                     10,444  Kb821264.cat
   06-Jun-2003  18:18                        354  Updatebr.inf
   06-Jun-2003  18:18                      5,287  Update_rtmqfe.inf 

Windows 2000

A supported hotfix is 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 software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

This update requires Windows 2000 Service Pack 4.

Restart Requirement

You must restart your 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) 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
   ---------------------------------------------------------
   12-Jun-2003  18:48  5.0.2195.6692     994,064  Ole32.dll        
   12-Jun-2003  18:48  5.0.2195.6753     432,400  Rpcrt4.dll       
   12-Jun-2003  18:48  5.0.2195.6702     187,664  Rpcss.dll			
.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Properties

Article ID: 821264 - Last Review: July 24, 2007 - Revision: 2.8
APPLIES TO
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows 2000 Advanced Server
Keywords: 
kbautohotfix kbhotfixserver kbqfe kbbug kbfix kbqfe kbwinserv2003presp1fix KB821264

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