Date: Sun, 3 Jul 2005 10:27:08 -0500 From: Skylar Thompson <skylar@cs.earlham.edu> To: Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?= <des@des.no> Cc: fs@freebsd.org Subject: Re: Snapshot problems Message-ID: <20050703152708.GB61611@quark.cs.earlham.edu> In-Reply-To: <86k6k8yxf2.fsf@xps.des.no> References: <20050626182031.GA5268@quark.cs.earlham.edu> <20050701130315.C52686@duey.wolves.k12.mo.us> <42C6C873.8050808@cs.earlham.edu> <86k6k8yxf2.fsf@xps.des.no>
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--NMuMz9nt05w80d4+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Jul 03, 2005 at 12:52:01PM +0200, Dag-Erling Smrgrav wrote: > Skylar Thompson <skylar@cs.earlham.edu> writes: > > No joy. The machine hung again yesterday afternoon, with the error > > "kern.ipc.maxpipekva exceeded" repeated over and over again on the > > console. >=20 > So you're using a lot of pipes - more than the kernel can handle with > the default parameters. What's your workload? Do you run a lot of > jails? What is the current value of kern.ipc.maxpipekva? Have you > tried increasing it? That's the weird thing. My workload is pretty typical. This is basically being used as a main departmental server, doing web/mail/database/print services. I don't think these services involve using a lot of pipes. I also can't correlate the crashes with heavy service load; it's always correlated with heavy disk I/O. That said, upping kern.ipc.maxpipekva might be on the right track. The machine lasted through both the database dumps and the filesystem dumps last night. --=20 -- Skylar Thompson (skylar@cs.earlham.edu) -- http://www.cs.earlham.edu/~skylar/ --NMuMz9nt05w80d4+ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFCyAPLsc4yyULgN4YRAt0LAKCQ9BGDwwBu6MCiWNS0Amj5VpD9XQCgo6Vi PBa1+JMcnYwpPNQ0+gEXZWY= =yPWE -----END PGP SIGNATURE----- --NMuMz9nt05w80d4+--
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