Date: Tue, 30 Nov 2010 08:17:59 -0500 From: Adam McDougall <mcdouga9@egr.msu.edu> To: Doug Barton <dougb@FreeBSD.org> Cc: stable@freebsd.org Subject: Re: Stale NFS file handles on 8.x amd64 Message-ID: <4CF4F987.9000504@egr.msu.edu> In-Reply-To: <4CF4AC98.7090304@FreeBSD.org> References: <4CF44E2E.4070700@egr.msu.edu> <4CF4AC98.7090304@FreeBSD.org>
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On 11/30/10 02:49, Doug Barton wrote: > On 11/29/2010 17:06, Adam McDougall wrote: >> I've been running dovecot 1.1 on FreeBSD 7.x for a while with a bare >> minimum of NFS problems, but it got worse with 8.x. I have 2-4 servers >> (usually just 2) accessing mail on a Netapp over NFSv3 via imapd. > > There are a whole lot more variables that I haven't seen covered yet. > Are you using TCP mounts or UDP mounts? Try toggling that setting and > see if your performance increases. Are you using rpc.lockd, or not? Try > toggling that. What mount options are you using other than TCP/UDP? What > does the network topology look like? > > It's very likely that we can help you here, but more information is needed. > > > Doug > I am using tcp mounts, the mounts in question are either using rw,bg,tcp,nosuid or rw,bg,tcp,noexec in fstab which is what I was using in 7.x except for intr. I'm much more concerned about the corruption rather than the performance at this point but I could try UDP when I get a chance, although I wasn't using it on 7. I am running lockd and statd and was on 7 too. I was using options NFSLOCKD on both 7 and 8. The Netapp I am accessing is on the same local /24 subnet and it does not traverse any firewalls or routers to get there. Two of the four clients are on the same switch as the NFS server, the other two clients are on a different layer 2 switch but same vlan. Today is a bit busy so I may only have time for discussion or simple non-invasive changes during the day but I'll compile a list of suggestions at least. Thanks.
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