Date: Fri, 16 Jul 2004 14:46:40 -0500 From: Eric Anderson <anderson@centtech.com> To: Mike Thomas <mwt@cems.umn.edu> Cc: current@freebsd.org Subject: Re: nfsd problems with FreeBSD 5.2.1 Message-ID: <40F830A0.5000507@centtech.com> In-Reply-To: <40F82941.8010208@cems.umn.edu> References: <40F8157D.5040104@cems.umn.edu> <40F823CF.40304@centtech.com> <40F82941.8010208@cems.umn.edu>
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Mike Thomas wrote: [..snip stuff that is now null..] > >> What about network interface errors? > > > To be honest, i'm not sure how to check for these, in linux/solaris, > ifconfig itself prints out the errors, this isn't the case (at least > with ifconfig -a) on FreeBSD, as far as I can tell. netstat -i >> If you watch an iostat during the busy time, is your disk being slammed? > > > iostat seems to never go over 30k/sec average, Ok, that's obviously pretty low.. How about transactions per second (tps)? >> If you are using uw-imap, how big are the mailboxes? >> > See, this is the thing that I think may be causing the problems. We > are using uw-imap, and the mailboxes vary anywhere from 100k to 600mb > (some people are irresponsible mail users!) The thing is though, even > in times of high load like someone opening or accessing a mailbox of > this size, it shouldn't be causing the box to go down to its knees, > should it? I don't think it should cause this, but uw-imap's single mailbox storage isn't exactly efficient for large mailboxes.. although I use it internally and we have some large mailboxes too, on a much less 'beefy' server with no problems (it is running FreeBSD 4.X).. > I've recompiled the machine with 5.2.1-release-p9 and disabled > hyperthreading, we'll see how that goes. Keep us posted - if nothing but for the archives.. Out of curiousity - did this machine run smoothly at some point before? If so, is the only that changed an upgrade to a more recent -current? Just for a reference point - I'm using -current as of May 25th on some machines and it is (so far) very stable and solid.. YMMV Eric -- ------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology Talk sense to a fool and he calls you foolish. ------------------------------------------------------------------
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