Date: Fri, 20 Dec 2013 10:05:22 +0100 From: Gerrit =?ISO-8859-1?Q?K=FChn?= <gerrit.kuehn@aei.mpg.de> To: krichy@tvnetwork.hu Cc: freebsd-fs@freebsd.org Subject: Re: ZFS snapshot renames failing after upgrade to 9.2 Message-ID: <20131220100522.382a39ac.gerrit.kuehn@aei.mpg.de> In-Reply-To: <alpine.DEB.2.10.1312192007100.30378@krichy.tvnetwork.hu> References: <0C9FD4E1-0549-4849-BFC5-D8C5D4A34D64@msqr.us> <54D3B3C002184A52BEC9B1543854B87F@multiplay.co.uk> <333D57C6A4544067880D9CFC04F02312@multiplay.co.uk> <26053_1387447492_52B2C4C4_26053_331_1_20131219105503.3a8d1df3.gerrit.kuehn@aei.mpg.de> <20131219165549.9f2ca709.gerrit.kuehn@aei.mpg.de> <alpine.DEB.2.10.1312191718330.12885@krichy.tvnetwork.hu> <20131219174054.91ac617a.gerrit.kuehn@aei.mpg.de> <alpine.DEB.2.10.1312192007100.30378@krichy.tvnetwork.hu>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, 19 Dec 2013 20:08:22 +0100 (CET) krichy@tvnetwork.hu wrote about Re: ZFS snapshot renames failing after upgrade to 9.2: KH> So a simple renaming can cause your system to hang? No, it does not hang completely. Just the snapshots become unusable. This night, it happened again: --- root@shapeshifter:~ # ll /tank/git/.zfs/snapshot/ ls: daily.6: Device busy total 33 drwxr-xr-x 12 211 211 25 Dec 19 09:18 daily.0/ drwxr-xr-x 12 211 211 25 Dec 19 00:00 daily.1/ drwxr-xr-x 12 211 211 24 Dec 18 00:00 daily.2/ drwxr-xr-x 12 211 211 24 Dec 17 00:00 daily.3/ drwxr-xr-x 12 211 211 24 Dec 16 00:00 daily.4/ drwxr-xr-x 12 211 211 24 Dec 14 00:00 daily.5/ drwxr-xr-x 12 211 211 24 Dec 15 00:00 weekly.0/ drwxr-xr-x 12 211 211 24 Dec 8 00:00 weekly.1/ drwxr-xr-x 12 211 211 24 Dec 1 00:00 weekly.2/ drwxr-xr-x 12 211 211 24 Nov 17 00:00 weekly.3/ drwxr-xr-x 12 211 211 24 Nov 10 00:00 weekly.4/ drwxr-xr-x 2 root wheel 3 Oct 20 00:00 weekly.5/ drwxr-xr-x 2 root wheel 3 Oct 6 00:00 weekly.6/ --- root@shapeshifter:~ # zfs list -r -t snapshot -o name,creation,used,referenced tank/git NAME CREATION USED REFER tank/git@weekly.6 Sun Oct 6 0:00 2013 42.6K 62.8K tank/git@weekly.5 Sun Oct 20 0:00 2013 42.6K 62.8K tank/git@weekly.4 Sun Nov 10 0:00 2013 29.5M 146G tank/git@weekly.3 Sun Nov 17 0:00 2013 27.1M 146G tank/git@weekly.2 Sun Dec 1 0:00 2013 26.3M 146G tank/git@weekly.1 Sun Dec 8 0:00 2013 27.3M 146G tank/git@daily.6 Sat Dec 14 0:00 2013 26.5M 147G tank/git@weekly.0 Sun Dec 15 0:00 2013 25.2M 147G tank/git@daily.5 Mon Dec 16 0:00 2013 24.7M 147G tank/git@daily.4 Tue Dec 17 0:00 2013 24.9M 147G tank/git@daily.3 Wed Dec 18 0:00 2013 25.7M 147G tank/git@daily.2 Thu Dec 19 0:00 2013 25.8M 147G tank/git@daily.1 Thu Dec 19 9:19 2013 25.0M 147G tank/git@daily.0 Fri Dec 20 0:00 2013 26.8M 147G --- As you can see, the snapshot rotating got stuck somewhere. What is displayed under .zfs/snapshot does not reflect what zfs is really seeing: daily.6 is inaccessible, and the rotation that happened so far is not reflected under .zfs/snapshot, either. cu Gerrit
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20131220100522.382a39ac.gerrit.kuehn>