[1169] in Release_7.7_team

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[tfitz@MIT.EDU: Re: Network and/or athena NFS problem]

daemon@ATHENA.MIT.EDU (Dan Winship)
Tue Dec 16 13:23:16 1997

Date: Tue, 16 Dec 1997 13:23:11 -0500
From: Dan Winship <danw@MIT.EDU>
To: release-team@MIT.EDU

Patch release fodder? (See [923] in source-reviewers for more details.)

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X-Mailer: exmh version 1.6.7 5/3/96
To: ops@MIT.EDU
Cc: tfitz@MIT.EDU, cpontier@MIT.EDU, fawyn@MIT.EDU, takehiko@MIT.EDU,
        haldane@MIT.EDU
Subject: Re: Network and/or athena NFS problem 
In-Reply-To: Your message of "Mon, 15 Dec 1997 16:45:11 EST."
             <199712152145.QAA06949@the-other-woman.MIT.EDU> 
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Date: Tue, 16 Dec 1997 11:51:21 EST
From: Tom Fitzgerald <tfitz@MIT.EDU>

> 
> > Many users around here are seeing a problem accessing NFS lockers on
> > athena workstations, from other athena workstations in other buildings.
> > When they do even the simplest accesses, even ls or pwd (when cd'd
> > into the locker), they get an immediate NFS timeout and no data.
> 
> Hi, I'm sorry it's taken us so long to get back to you.  We have a
> possible workaround that we'd like you to try:
> 
> When attaching the relevant lockers use the "-o timeo=100" option, eg:
> 
> attach  -o timeo=100 archfile00
> 
> Please let us know whether or not this solves your problem.
> 

Hi.  It definitely helps a *lot*.  I'll ask people to use it and see if
it takes care of the problem completely.  Is there any way we can
make this the default for all arch[1-9] and archfile0[0-3] filesystems?
I can fix the attach.conf on the clients we have here, but this
problem was reported from athena clients in clusters around campus too.

Or can the default timeo=8 option be dropped for these filesystems so that
the normal Solaris defaults (UDP timeo=11, TCP timeo=100) get used?

Without timeo=8, I could do a "find . -print" and consistently see
timeouts with 1% or so of the files accessed.  With timeo=100 I went
through 25000 files without a single timeout.
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