Why do I see the 'Computer Name Not Found' error in NCache?

This error occurs when the account used to monitor remote nodes lacks administrative privileges, specifically restricted access to performance counters and remote registry subkeys.

Which registry keys are required for remote NCache monitoring?

READ access must be granted to HKLM\Software\Microsoft\Windows NT\CurrentVersion\Perflib and HKLM\System\CurrentControlSet\Control\SecurePipeServers\winreg.

What are the PERFCxxx.DAT files used for?

These are Windows system files containing performance counter definitions. NCache requires access to these files to pull real-time monitoring stats from remote server nodes.

Computer Name Not Found

The 'Computer Name Not Found' error typically occurs when NCache Monitor attempt to monitor a remote server node using a non-administrator account. To resolve this, you must adjust the security descriptors for performance files and registry subkeys to allow remote RPC access for the monitoring account.

Workaround

To enable remote monitoring on the server node (Windows NT computer), do the following:

Grant at least READ access to the following files:
- %windir%\system32\PERFCxxx.DAT
- %windir%\system32\PERFHxxx.DAT

Note

xxx is the basic language ID for the system; for example, 009 for English.

Grant READ access to the following registry keys on the remote computer using REGEDT32:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Perflib and all subkeys of that key.
- HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\SecurePipeServers\winreg

Warning

Using the Registry Editor incorrectly can cause serious system-wide problems that will require a Windows reinstallation. Use this tool at your own risk.

Computer Name Not Found

Workaround

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