Re: [zfs-discuss] zfs exported a live filesystem
Boyd Adamson wrote: On 12/12/2006, at 8:48 AM, Richard Elling wrote: Jim Hranicky wrote: By mistake, I just exported my test filesystem while it was up and being served via NFS, causing my tar over NFS to start throwing stale file handle errors. Should I file this as a bug, or should I just not do that :- Don't do that. The same should happen if you umount a shared UFS file system (or any other file system types). -- richard Except that it doesn't: # mount /dev/dsk/c1t1d0s0 /mnt # share /mnt # umount /mnt umount: /mnt busy # unshare /mnt # umount /mnt If you umount -f it will though! I don't quite agree that unmounting a UFS filesystem that is exported over NFS is the same as running zpool export on the pool. The equivalent to running umount on the UFS file system is running zfs umount on the ZFS file system in the pool. Running zpool export on the pool is closer to removing (cleanly) the disks or metadevices that the ufs file system is stored on. The system is working as designed, the NFS client did what it was supposed to do. If you brought the pool back in again with zpool import things should have picked up where they left off. Whats more you we probably running as root when you did that so you got what you asked for - there is only so much protection we can give without being annoying! If you look at the RBAC profiles we currently ship for ZFS you will see that there are two distinct profiles, one for ZFS File System Management and one for ZFS Storage Management. The reason they are separate is because they work at quite different layers in the system with different protections. Now having said that I personally wouldn't have expected that zpool export should have worked as easily as that while there where shared filesystems. I would have expected that exporting the pool should have attempted to unmount all the ZFS filesystems first - which would have failed without a -f flag because they were shared. So IMO it is a bug or at least an RFE. -- Darren J Moffat ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] zfs exported a live filesystem
By mistake, I just exported my test filesystem while it was up and being served via NFS, causing my tar over NFS to start throwing stale file handle errors. Should I file this as a bug, or should I just not do that :- Ko, This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs exported a live filesystem
Jim Hranicky wrote: By mistake, I just exported my test filesystem while it was up and being served via NFS, causing my tar over NFS to start throwing stale file handle errors. So you had a pool and were sharing filesystems over NFS, NFS clients had active mounts, you removed /etc/zfs/zpool.cache, rebooted the machine, created a new pool with the same name (and same filesystem names)? If so, that's not a bug, the NFS clients have no knowledge that you've re-created the pool. Even though your namespace is the same, the filehandles will be different since your filesystems are different (and have different FSIDs). eric Should I file this as a bug, or should I just not do that :- Ko, This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs exported a live filesystem
Jim Hranicky wrote: By mistake, I just exported my test filesystem while it was up and being served via NFS, causing my tar over NFS to start throwing stale file handle errors. Should I file this as a bug, or should I just not do that :- Don't do that. The same should happen if you umount a shared UFS file system (or any other file system types). -- richard ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs exported a live filesystem
On 12/12/2006, at 8:48 AM, Richard Elling wrote: Jim Hranicky wrote: By mistake, I just exported my test filesystem while it was up and being served via NFS, causing my tar over NFS to start throwing stale file handle errors. Should I file this as a bug, or should I just not do that :- Don't do that. The same should happen if you umount a shared UFS file system (or any other file system types). -- richard Except that it doesn't: # mount /dev/dsk/c1t1d0s0 /mnt # share /mnt # umount /mnt umount: /mnt busy # unshare /mnt # umount /mnt # ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
