Re: zfs, a directory that used to hold lot of files and listing pause

Have you done any ZFS tuning? Could you try installing ports/sysutils/zfs-stats and posting the output from "zfs-stats -a". That might point to a bottleneck or poor cache tuning. -- Peter Jeremy signature.asc Description: PGP signature

Re: zfs, a directory that used to hold lot of files and listing pause

On 21/10/2016 04:52, Eugene M. Zheganin wrote: Hi. On 20.10.2016 21:17, Steven Hartland wrote: Do you have atime enabled for the relevant volume? I do. If so disable it and see if that helps: zfs set atime=off Nah, it doesn't help at all. As per with Jonathon what does gstat -pd and top

Re: zfs, a directory that used to hold lot of files and listing pause

In your case there your vdev (ada0) is saturated with writes from postgres. You should consider more / faster disks. You might also want to consider enabling lz4 compression on the PG volume as its works well in IO bound situations. On 21/10/2016 01:54, Jonathan Chen wrote: On 21 October

Re: zfs, a directory that used to hold lot of files and listing pause

Hi. On 20.10.2016 21:17, Steven Hartland wrote: Do you have atime enabled for the relevant volume? I do. If so disable it and see if that helps: zfs set atime=off Nah, it doesn't help at all. Thanks. Eugene. ___ freebsd-stable@freebsd.org

Re: zfs, a directory that used to hold lot of files and listing pause

On 21 October 2016 at 12:56, Steven Hartland wrote: [...] > When you see the stalling what does gstat -pd and top -SHz show? On my dev box: 1:38pm# uname -a FreeBSD irontree 10.3-STABLE FreeBSD 10.3-STABLE #0 r307401: Mon Oct 17 10:17:22 NZDT 2016

Re: zfs, a directory that used to hold lot of files and listing pause

On 20/10/2016 23:48, Jonathan Chen wrote: On 21 October 2016 at 11:27, Steven Hartland wrote: On 20/10/2016 22:18, Jonathan Chen wrote: On 21 October 2016 at 09:09, Peter wrote: [...] I see this on my pgsql_tmp dirs (where Postgres

Re: zfs, a directory that used to hold lot of files and listing pause

On 21 October 2016 at 11:27, Steven Hartland wrote: > On 20/10/2016 22:18, Jonathan Chen wrote: >> >> On 21 October 2016 at 09:09, Peter wrote: >> [...] >>> >>> I see this on my pgsql_tmp dirs (where Postgres stores intermediate >>> query

Re: zfs, a directory that used to hold lot of files and listing pause

On 20/10/2016 22:18, Jonathan Chen wrote: On 21 October 2016 at 09:09, Peter wrote: [...] I see this on my pgsql_tmp dirs (where Postgres stores intermediate query data that gets too big for mem - usually lots of files) - in normal operation these dirs are

Re: zfs, a directory that used to hold lot of files and listing pause

While I have yet to encounter this with PG on ZFS, knock on wood, this obviously is not an isolated issue and if possible those experiencing it should do as much investigation as possible and open a PR. This seems like something I'm going to read about FreeBSD and PG/ZFS over at Hacker News

Re: zfs, a directory that used to hold lot of files and listing pause

On 21 October 2016 at 09:09, Peter wrote: [...] > > I see this on my pgsql_tmp dirs (where Postgres stores intermediate > query data that gets too big for mem - usually lots of files) - in > normal operation these dirs are completely empty, but make heavy disk >

Re: Nightly disk-related panic since upgrade to 10.3

Andrea Venturoli wrote: Hello. Last week I upgraded a 9.3/amd64 box to 10.3: since then, it crashed and rebooted at least once every night. Hi, I have quite similar issue, crash dumps every night, but then my stacktrace is different (crashing mostly in cam/scsi/scsi.c), and my env is also

Re: zfs, a directory that used to hold lot of files and listing pause

Eugene M. Zheganin wrote: Hi. I have FreeBSD 10.2-STABLE r289293 (but I have observed this situation on different releases) and a zfs. I also have one directory that used to have a lot of (tens of thousands) files. I surely takes a lot of time to get a listing of it. But now I have 2 files and

Jenkins build is still unstable: FreeBSD_stable_10 #436

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Re: I'm upset about FreeBSD

On Wed, 19 Oct 2016 16:38:09 -0700, Kevin Oberman wrote: > On Wed, Oct 19, 2016 at 3:39 PM, Warner Losh wrote: > > > On Wed, Oct 19, 2016 at 12:21 PM, Rostislav Krasny > > wrote: > > > On Tue, Oct 18, 2016 at 21:57:29 +1100, Ian Smith

Re: zfs, a directory that used to hold lot of files and listing pause

Do you have atime enabled for the relevant volume? If so disable it and see if that helps: zfs set atime=off Regards Steve On 20/10/2016 14:47, Eugene M. Zheganin wrote: Hi. I have FreeBSD 10.2-STABLE r289293 (but I have observed this situation on different releases) and a zfs. I

Re: zfs, a directory that used to hold lot of files and listing pause

> > I've the same issue, but only if the ZFS resides on a LSI MegaRaid and one > > RAID0 for each disk. > > > Not in my case, both pool disks are attached to the Intel ICH7 SATA300 > controller. Nor my case - my discs are on this: ahci0: ___

Re: zfs, a directory that used to hold lot of files and listing pause

Hi. On 20.10.2016 19:18, Dr. Nikolaus Klepp wrote: I've the same issue, but only if the ZFS resides on a LSI MegaRaid and one RAID0 for each disk. Not in my case, both pool disks are attached to the Intel ICH7 SATA300 controller. Thanks. Eugene.

Re: zfs, a directory that used to hold lot of files and listing pause

Hi, On 20.10.2016 19:12, Pete French wrote: Have ignored this thread untiul now, but I observed the same behaviour on mysystems over the last week or so. In my case its an exim spool directory, which was hugely full as some point (thousands of files) and now takes an awfully long time to open

Re: zfs, a directory that used to hold lot of files and listing pause

Hi. On 20.10.2016 19:03, Miroslav Lachman wrote: What about snapshots? Are there any snapshots on this filesystem? Nope. # zfs list -t all NAMEUSED AVAIL REFER MOUNTPOINT zroot 245G 201G 1.17G legacy zroot/tmp 10.1M 201G

Re: zfs, a directory that used to hold lot of files and listing pause

Hi. On 20.10.2016 18:54, Nicolas Gilles wrote: Looks like it's not taking up any processing time, so my guess is the lag probably comes from stalled I/O ... bad disk? Well, I cannot rule this out completely, but first time I've seen this lag on this particular server about two months ago, and

Re: tcsh is not handled correctly UTF-8 in arguments

On Thu, Oct 20, 2016 at 08:54:05AM -0600, Alan Somers wrote: > On Wed, Oct 19, 2016 at 11:10 AM, Slawa Olhovchenkov wrote: > > tcsh called by sshd for invocation of scp: `tcsh -c scp -f Расписание.pdf` > > At this time no any LC_* is set. > > tcsh read .cshrc and set

Re: tcsh is not handled correctly UTF-8 in arguments

On Wed, Oct 19, 2016 at 11:10 AM, Slawa Olhovchenkov wrote: > tcsh called by sshd for invocation of scp: `tcsh -c scp -f Расписание.pdf` > At this time no any LC_* is set. > tcsh read .cshrc and set LC_CTYPE=ru_RU.UTF-8 LC_COLLATE=ru_RU.UTF-8. > After this invocation of scp will

Re: zfs, a directory that used to hold lot of files and listing pause

Am Donnerstag, 20. Oktober 2016 schrieb Eugene M. Zheganin: > Hi. > > I have FreeBSD 10.2-STABLE r289293 (but I have observed this situation > on different releases) and a zfs. I also have one directory that used to > have a lot of (tens of thousands) files. I surely takes a lot of time to >

Re: zfs, a directory that used to hold lot of files and listing pause

Have ignored this thread untiul now, but I observed the same behaviour on mysystems over the last week or so. In my case its an exim spool directory, which was hugely full as some point (thousands of files) and now takes an awfully long time to open and list. I delet and remake them and the

Re: zfs, a directory that used to hold lot of files and listing pause

Eugene M. Zheganin wrote on 2016/10/20 15:47: Hi. I have FreeBSD 10.2-STABLE r289293 (but I have observed this situation on different releases) and a zfs. I also have one directory that used to have a lot of (tens of thousands) files. I surely takes a lot of time to get a listing of it. But now

Re: zfs, a directory that used to hold lot of files and listing pause

On Thu, Oct 20, 2016 at 3:47 PM, Eugene M. Zheganin wrote: > Hi. > > I have FreeBSD 10.2-STABLE r289293 (but I have observed this situation on > different releases) and a zfs. I also have one directory that used to have a > lot of (tens of thousands) files. I surely takes a

zfs, a directory that used to hold lot of files and listing pause

Hi. I have FreeBSD 10.2-STABLE r289293 (but I have observed this situation on different releases) and a zfs. I also have one directory that used to have a lot of (tens of thousands) files. I surely takes a lot of time to get a listing of it. But now I have 2 files and a couple of dozens

Jenkins build is still unstable: FreeBSD_stable_10 #435

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