FIX: Clussvc.exe Hits 100% CPU Utilization When Doing a Group Failover

• Microsoft Cluster Server, included with:
  • Microsoft Windows NT 4.0

SYMPTOMS

When failing over certain cluster resource groups, Clussvc.exe may consume 100 percent of the CPU time for an extended period of time, which starves the resource monitors of CPU time. As a result, resources in the group may not failover properly. This bug is present up through Windows NT 4.0 Service Pack 5 (SP5).

RESOLUTION

A supported fix that corrects this problem is now available from Microsoft, but has not been fully regression tested and should be applied only to systems experiencing this specific problem. If you are not adversely affected by this specific problem, Microsoft recommends that you wait for the next Windows NT 4.0 service pack. To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://support.microsoft.com/support/supportnet/default.asp

STATUS

Microsoft has confirmed this to be a bug in Microsoft Cluster Server version 1.0.

Additional query words: hotfix hot fix qfe quick engineering patch bug cluster server mscs

Keywords          : kbClustServ kbClustServ100bug kbClustServ100fix kbNTOS400 kbGrpPlatform 
Version           : winnt:4.0
Platform          : winnt 
Issue type        : kbbug 

Last Reviewed: July 30, 1999