From: "Lever, Charles" <Charles.Lever@netapp.com>
Subject: RE: NFS cache problem
Date: Wed, 25 May 2005 18:21:51 -0700
Message-ID: <482A3FA0050D21419C269D13989C611308539BA7@lavender-fe.eng.netapp.com>
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Cc: <nfs@lists.sourceforge.net>
To: "Anton Starikov" <A.Starikov@utwente.nl>
Sender: nfs-admin@lists.sourceforge.net
Errors-To: nfs-admin@lists.sourceforge.net

hi anton-

> I use ReiserFS.
> And here we talk not about seconds...we talk about hours sometimes.
> That's seems too strange for me. For seconds I can find plenty of
> explanations :)
> In principal even if it will be one minute, I'll be much more=20
> happy than
> now.

> > If you seriously need uncached reads and writes, then you=20
> should rather,
> > consider using O_DIRECT.
> Unfortunatelly this is not trivial problem. A lot of software are
> involved here. And I beleive that NFS should be able to work in this
> conditions properly. At least it did with solaris in similar=20
> environment.

if you have a way of reproducing this condition, maybe you could capture
a network trace on the server while running your test case...  "tcpdump
-s0 -w dumpfile" and post it on the web so we can take a look at what's
going on.


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