Date: Fri, 15 Oct 2010 14:11:36 -0400 From: David Samms <dsamms@nw-ds.com> To: freebsd-fs@freebsd.org Subject: Re: ZFS trouble: unbelievably large files created Message-ID: <i9a5gq$7q3$1@dough.gmane.org> In-Reply-To: <20101015174833.GA14662@icarus.home.lan> References: <i9a1or$la0$1@dough.gmane.org> <20101015174833.GA14662@icarus.home.lan>
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On 10/15/10 13:48, Jeremy Chadwick wrote: > On Fri, Oct 15, 2010 at 01:07:37PM -0400, David Samms wrote: >> I am running into issues with ZFS where perl, specifically amavisd >> running spamassassin creates unbelievably large files, as in files >> 100x the size of the hard disk. >> >> My setup is a host run a dozen jails. The host is amd64 FreeBSD >> 8.1-RELEASE-p1 #6 as of Thu Sep 30. The jails are running 8.0 >> release as I have not yet upgraded them. This setup has been very >> stable till I introduced ZFS. Below is the zpool setup: >> >> zpool status >> pool: m1012 >> state: ONLINE >> scrub: none requested >> config: >> >> NAME STATE READ WRITE CKSUM >> m1012 ONLINE 0 0 0 >> mirror ONLINE 0 0 0 >> ad10 ONLINE 0 0 0 >> ad12 ONLINE 0 0 0 >> >> Last night I moved six jails from my UFS+S RAID5 file system to the >> new ZFS file system. Since then perl occasionally runs at 100% disk >> usage accessing files in /var/amavis/.spamassassin Here is the >> current directory listing: >> >> ls -l .spamassassin >> total 13352131 >> -rw------- 1 vscan vscan 684032 Oct 15 12:02 auto-whitelist >> -rw------- 1 vscan vscan 40 Oct 15 12:37 bayes.lock >> -rw------- 1 vscan vscan 1294336 Oct 15 12:38 bayes_seen >> -rw------- 1 vscan vscan 4227072 Oct 15 12:38 bayes_toks >> -rw------- 1 vscan vscan 553184002048 Oct 15 12:38 >> bayes_toks.expire3515 >> -rw------- 1 vscan vscan 140743122878464 Oct 15 12:14 >> bayes_toks.expire97254 >> >> The last file is 140TB which is pretty good sized for a 1TB disk. >> Disk compression is OFF. du -hs reports 13G int the .spamassassin >> directory. >> >> Any thoughts? > > Thread titled "Strange ZFS problem, filesystem claims to be full when > clearly not full": > > http://lists.freebsd.org/pipermail/freebsd-fs/2010-September/thread.html#9610 > I don't think it is related, but could be. I am not seeing the disk as full, although I do know that if I let perl continue to write it does fill the ZFS partition. df -h Filesystem Size Used Avail Capacity Mounted on m1012/shawxp 40G 19G 21G 48% / zfs list m1012/shawxp 20.0G 20.9G 19.1G /m1012/shawxp
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