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Cluster debugging is enabled

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at https://go.microsoft.com/fwlink/?linkid=34707.]  

Topic Last Modified: 2005-11-18

The Microsoft® Exchange Server Analyzer Tool reads the following registry entry to determine whether cluster debugging is enabled on the server:

HKEY_LOCAL_MACHINE\Software\Microsoft\Exchange\Cluster\Debug

If the Exchange Server Analyzer finds that the Debug value equals 1, the Exchange Server Analyzer displays a warning.

Cluster debugging with this registry value prevents cluster resources from failing over between nodes. You should use this registry value only when debugging a problem that requires preventing resources from failing over.

Important

This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore the registry if a problem occurs. For information about how to restore the registry, view the "Restore the Registry" Help topic in Regedit.exe or Regedt32.exe.

To disable the cluster debugging registry key

  1. Open a registry editor, such as Regedit.exe or Regedt32.exe.

  2. Navigate to HKLM\Software\Microsoft\Exchange\Cluster.

  3. Change the Debug value to 0.

  4. Exit the registry editor.

Before you edit the registry, and for information about how to edit the registry, see the Microsoft Knowledge Base article 256986, "Description of the Microsoft Windows registry" (https://go.microsoft.com/fwlink/?linkid=3052&kbid=256986).

For more information about Exchange clusters, see the topic, "Managing Exchange Clusters in Exchange Server 2003" in the Exchange 2003 Server Administration Guide (https://go.microsoft.com/fwlink/?LinkId=47617).