Event Viewer message reporting “Long delays processing Mac client commands have been detected.”

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  • Product:
    ExtremeZ-IP
  • Revised:
    8/16/2013
  • Reviewed:
    11/9/2011

Symptom: Event Viewer message reporting “Long delays processing Mac client commands have been detected. This could be an indication of a server hardware or operating system problem. Please see the following knowledge base article for further information”

ExtremeZ-IP is designed to log this event whenever Windows fails to respond to a request for more than 300 seconds. When this hang threshold is hit, ExtremeZ-IP will produce a dmp file (default setting) in order to trap forensic info about the state of the thread and types of requests leading into the stall.

There are two types of stalls:
1) Stalls that complete: Hangs that last more than 300+ seconds but eventually complete
2) Stalls that never complete: Here you will find the ExtremeZ-IP service may have hung or that the entire server operating system may have hung.

In most cases the underlying problem is related to outdated firmware/drivers, a poorly written kernel driver, resource constraints (bottlenecks) or poor disk health. If you haven’t recently checked disk health, running chkdsk with the /f switch and updating controller card drivers has been found to resolve a majority of cases.

Note: chkdsk in Read-Only Mode Does Not Detect Corruption on NTFS Volume. See http://support.microsoft.com/kb/283340

If chkdsk finds and fixes an error such as “Breaking links between parent file xxxxx and child file xxxxx” then your disk was suffering from what is known as a circular reference and you should no longer have the long delays. UPDATE: Microsoft has released a hotfix that will prevent this error. See the following KB article for more information: http://support.grouplogic.com/?p=4207.

If you would like us to review your logs to see if we can help narrow down the problem, please open a support case and upload supporting files as described below:
- Open a support case online (include description/observations): http://support.grouplogic.com/request
- An automated email will be sent back to you with a case number so that you can upload the following files to our support site:
a) ExtremeZ-IP Logs folder: Right-click the folder C:\Program Files\Group Logic\ExtremeZ-IP\Logs and select Send To –> Compressed Folder
b) any dump files (*.dmp) you find in: C:\Program Files\Group Logic\ExtremeZ-IP
c) Generate a System Information report: At Start –> Run, type msinfo32 to launch the tool. Then select File –> Save to save the .nfo file.
d) Export application and system event logs as evt/evtx file

Zip the above files as case#.zip and upload using a browser:
http://mtweb.grouplogic.com
User: supportfiles
Password: $grouplogic123$

Note: If you are not running the latest version of ExtremeZ-IP, please upgrade as the latest release may provide better diagnostics/logging: http://support.grouplogic.com/ezlatest

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