Date: Fri, 12 Feb 2010 16:08:55 -0800 (PST) From: alan bryan <alanbryan1234@yahoo.com> To: Dmitry Marakasov <amdmi3@amdmi3.ru>, Rick Macklem <rmacklem@uoguelph.ca> Cc: freebsd-hackers@freebsd.org, freebsd-stable@freebsd.org Subject: Re: NFS write corruption on 8.0-RELEASE Message-ID: <247310.48932.qm@web50506.mail.re2.yahoo.com> In-Reply-To: <Pine.GSO.4.63.1002121410100.24931@muncher.cs.uoguelph.ca>
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--- On Fri, 2/12/10, Rick Macklem <rmacklem@uoguelph.ca> wrote: > From: Rick Macklem <rmacklem@uoguelph.ca> > Subject: Re: NFS write corruption on 8.0-RELEASE > To: "Dmitry Marakasov" <amdmi3@amdmi3.ru> > Cc: freebsd-hackers@freebsd.org, freebsd-stable@freebsd.org, "John Baldwin" <jhb@freebsd.org> > Date: Friday, February 12, 2010, 11:12 AM > > > On Fri, 12 Feb 2010, Dmitry Marakasov wrote: > > > > > I'm planning a massive testing for this weekend, > including removing > > soft mount option and trying linux client/server. > > > > Btw, I forgot to mention that I'm experiencing other > NFS problems from > > time to time, including "death" of a mount (that is, > all processes that > > try to access it freeze; this cures itself in some > time with a message > > "server is alive again"). Also I've seen another > strange thing - not > > only the mount dies but the network is flooded with > NFS traffic. > > Last time I've seen it quite a while ago, so I don't > remember the > > circumstances and direction of the traffic. > > > There are some patches at: > http://people.freebsd.org/~rmacklem > that may be relevant if you are using vanilla FreeBSD-8.0. > (They're all > now in stable/8, but are post-release of 8.0.) > > rick > > _______________________________________________ > freebsd-stable@freebsd.org > mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > This is interesting: "I've seen another strange thing - not only the mount dies but the network is flooded with NFS traffic." Rick - this sounds very similar to the issues I was seeing (and reported in the thread on freebsd-stable "Zombie NFS writing from FreeBSD clients to FreeBSD 8.0 server with ZFS". For the record - I updated to the latest 8-Stable and that still didn't cure my issues. I was originally on hard mounts on udp, tried soft and TCP too, nothing solved it. So, a few days ago I switched to using samba and mount_smbfs instead and am now running 3 days without a crash or any network traffic/load issues. (same machine, same ZFS disks, etc...) Luckily it wasn't too painful to make the change. When I have more time I'd like to retry NFS. --Alanhome | help
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