[OpenAFS] extreme slowness on windows client

Jeffrey Altman jaltman@secure-endpoints.com
Tue, 27 Jun 2006 23:37:53 -0400


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David Bear wrote:
> I have recently noted on two separate windows XP system (with sp2
> installed and openafs 1.4.xxx current stable release as of yesterday)
> that opening items in afs space is very slow. I googled for this and
> ran across some old notes from around 2003 but didn't think they would
> apply any longer.
> 
> The event logged has the following:

> Pkt straddled session startup, took 117125 ms, ncb length 81.
> 
> cm_Analyze: HardDeadTime exceeded..

There was a request that took the AFS Cache manager 117 seconds
to reply to.  In that time, the CIFS client timed out and broke
the virtual connection to the AFS CIFS server.

> Google reveals that event 1009 may be a server related error, ie the
> fileserver is too busy. But I've check with our afs server
> administrator and there were no load issues at all.
>
> The really strange thing is that all I did was convert these system
> from using static to dynamic ip addresses. They do not go through any
> NAT or other ip mungers (that I am aware of).
> 
> Any idea what I might look for?

Follow the instructions in the OpenAFS for Windows release notes.
Use the SysInternal's FileMon and DbgView tools to figure out what
requests Windows is making and map them to the internal processing
in the AFS Cache Manager to figure out why they are taking so long
to complete.

Jeffrey Altman



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