[OpenAFS] Windows client and Linux server issues.

[Jeffrey Altman]

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Mitchell:

Do you have the same issues with the 1.5.8 Windows client?

The error messages you describe are the Windows SMB client timing
out the connection to the AFS Client Service because the AFS client
is taking too long to respond.

1.5.8 implements a new algorithm to attempt to convince the SMB client
to be more patient.  There is no way to prevent the SMB client from
timing out because there is no method to inform the client that its
request is still in progress.  This is one of the reasons why we need
to implement a Windows File System Redirector in place of the SMB gateway.

The Solaris 1.2.13 vs Linux 1.4.1 comparisons and the addition of 'r'
are certainly interesting data points.  Seeing trace logs from the
Windows client and File Server logs (at level 125) that match would
be very useful.

Jeffrey Altman



Mitchell Baker wrote:
> I'm having an issue which I need some help with.  Just finished
> migrating all of our file servers from Solaris 8 running openafs 1.2.13
> server to RHEL 4 x86_64 running 1.4.1.  I have one test server running
> 1.4.2fc4. 
> 
> Windows client used is using AFS version 1.3.8700 and same thing with
> 1.4.0203. Windows XP sp2.
> 
> We have setup "homework turn in" directories in some of the classes.
> Students only have "li" access into those directories so they can turn
> in homework, but can't see other students work after it is turned in
> etc...
> 
> This worked fine from the windows client on the solaris servers.  But
> now under the linux servers, there are huge delays and 50% of the time
> access failure with a message "(dir name) is not accessible. The
> specified network name is no longer available.". 1.4 client will give
> there error: (dirname) is not accessible. You might not have permission
> to use this network resource.  Contact the administrator of this server
> to find out of you have access permissions.  The specified network name
> is not longer available. The event log under windows shows these
> Warnings:
> 
>  The description for Event ID ( 1005 ) in Source ( AFS Client ) cannot
> be found. The local computer may not have the necessary registry
> information or message DLL files to display messages from a remote
> computer. You may be able to use the /AUXSOURCE= flag to retrieve this
> description; see Help and Support for details. The following information
> is part of the event: Pkt straddled session startup, took 152125 ms, ncb
> length 109.  (Several of these with varying time)
> 
> The description for Event ID ( 1009 ) in Source ( AFS Client ) cannot be
> found. The local computer may not have the necessary registry
> information or message DLL files to display messages from a remote
> computer. You may be able to use the /AUXSOURCE= flag to retrieve this
> description; see Help and Support for details. The following information
> is part of the event: cm_Analyze: HardDeadTime exceeded..
> 
> If I add "r" to the ACL all works great. 
> 
> If all the files are owned by the users trying to access the directory
> there are no issues.  Fewer files in the directory make a difference as
> well.  Fewer number of files, faster listing, fewer failures. 
> 
> Again the Solaris servers running 1.2.13 have no issues as all. 
> 
> I think I have covered most of my testing...
> 
> Any offers on how to correct this problem?
> 
> See-ya
> Mitch
> 
> 
> 
> 

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