Date: Tue, 13 Dec 2011 15:44:42 +0100 From: Peter Maloney <peter.maloney@brockmann-consult.de> To: freebsd-fs@freebsd.org Subject: Re: zpool failmode=continue Message-ID: <4EE764DA.4030206@brockmann-consult.de> In-Reply-To: <jc7nq1$8nu$1@dough.gmane.org> References: <jc7nq1$8nu$1@dough.gmane.org>
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Are you using NFS or ZVOLs? My zfs hangs (all IO) if I go into the .zfs/snapshots directory over NFS. (planning to file a PR after I find a way to reproduce it reliably, but it depends on specific snapshots). My workaround is to mount /var/empty on top of the .zfs directory on the nfs client, and give nobody else access. Another workaround I thought of is to have another parent directory in the dataset, and share the 2nd level down which doesn't contain the .zfs directory. And a single dataset hangs if I rename a ZVOL snapshot (likely not the only way to cause this): http://www.freebsd.org/cgi/query-pr.cgi?pr=161968 I am using: FreeBSD bcnas1.bc.local 8.2-STABLE FreeBSD 8.2-STABLE #0: Thu Sep 29 15:06:03 CEST 2011 root@bcnas1.bc.local:/usr/obj/usr/src/sys/GENERIC amd64 On 12/13/2011 03:34 PM, Johannes Totz wrote: > Hi! > > Is failmode=continue for zpool working correctly? > > I have a test pool sitting on the network (which drops out every few > hours) but all io eventually just hangs instead of failing. > > To get the pool back up running (and get rid of all the hung > processes) I always need to reboot the machine. This is on: > FreeBSD XXX 9.0-PRERELEASE FreeBSD 9.0-PRERELEASE #1 r227793M: Mon Dec > 5 22:57:54 GMT 2011 root@XXX:/usr/obj/usr/src/sys/GENERIC amd64 > > > > Johannes > > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" -- -------------------------------------------- Peter Maloney Brockmann Consult Max-Planck-Str. 2 21502 Geesthacht Germany Tel: +49 4152 889 300 Fax: +49 4152 889 333 E-mail: peter.maloney@brockmann-consult.de Internet: http://www.brockmann-consult.de --------------------------------------------
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