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Re: CVS and NFS

From: Todd Denniston
Subject: Re: CVS and NFS
Date: Wed, 21 Apr 2004 10:26:32 -0500

Andy Jones wrote:
> >Some how I got confused by your letter.
> >1) which type is your CVSROOT, CVSROOT=:ext:machine:/.... ,
> >CVSROOT=:pserver:address@hidden:/.... or CVSROOT=/....
> CVSROOT=:pserver:address@hidden:/....
> >2) is the box you are checking out on the NFS server or NFS client?
> NFS Server.
> >3) if CVSROOT=:pserver:address@hidden:/...., is /.... on machine actually 
> >local
> >to the machine or an NFS mount?
> It's local to the server.  NFS happened to be running on my CVS client, 
>but it doesn't form any part of our CVS setup.

Andy Jones wrote in his first email:
> Can anybody confirm exactly what happens when you mix CVS and NFS?
> I've just had some *extremely* nasty symptoms when trying to check out a 
> top-level 
>directory on a client machine: cvs hangs, network hangs, etc..
> I *think* this is because I had an NFS share for the directory I did the 
> checkout in.
>Note, I'm not talking about sharing a sandbox over NFS here - just doing a 
>in a directory that I forgot was NFS shared.
> The final solution seemed to be to stop NFS *and* stop and restart pserver on 
> the server machine.
Definitely strange problem.
I (and the people who use the machines I admin) do checkouts to directories
shared through NFS all the time (both on the NFS server and many NFS clients)
using :pserver: and :ext: cvs methods.

have you looked in /var/[log|adm]/* for any messages that happened around that
time? this sounds to me more like a network card or disk controller driver
glitching and recovering with the same timing as your problem.

Todd Denniston
Crane Division, Naval Surface Warfare Center (NSWC Crane) 
Harnessing the Power of Technology for the Warfighter

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