Microsoft KB Archive/320331

= User Name Mapping May Become Inconsistent in a Cluster Environment =

Article ID: 320331

Article Last Modified on 10/31/2006

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APPLIES TO


 * Microsoft Windows Services for Unix 2.2
 * Microsoft Windows Services for UNIX 3.0 Standard Edition

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This article was previously published under Q320331



IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry



SYMPTOMS
User name mapping may become inconsistent across cluster nodes in a cluster environment.



CAUSE
This problem may occur if the User Name Mapping service starts without recognizing that a cluster exists. If this occurs,, changes that are made before the cluster is initialized may not be propagated to all of the cluster nodes.



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



WORKAROUND
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To prevent this problem from occurring, add a dependency to the User Name Mapping component. You can make User Name Mapping dependent on the start of the Cluster service by editing the DependOnService registry value. Follow these steps on all the cluster nodes:  Using Registry Editor, locate and then click the following registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Mapsvc

 Edit the DependOnService value. Add ClusSvc to the list of services.

For additional information about the DependOnService registry value, click the article number below to view the article in the Microsoft Knowledge Base:

193888 How to Delay Loading of Specific Services

Keywords: kbenv kbprb KB320331

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