Re: Missing error handling in lv_snapshot_remove

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Am 06.08.13 19:37, schrieb Bastian Blank:
> Hi
>
> I tried to tackle a particular bug that shows up in Debian for some time
> now. Some blamed the udev rules and I still can't completely rule them
> out. But this triggers a much worse bug in the error cleanup of the
> snapshot remove. I reproduced this with Debian/Linux 3.2.46/LVM 2.02.99
> without udevd running and Fedora 19/LVM 2.02.98-10.fc19.
>
> On snapshot removal, LVM first converts the device into a regular LV
> (lv_remove_snapshot) and in a second step removes this LV
> (lv_remove_single). Is there a reason for this two step removal? An
> error during removal leaves a non-snapshot LV behind.
Ah, this explains why sometimes my backup stops: I take a snapshot,
rsync the stuff and remove the snapshot with a daily cron job, but I
observed twice that a non-snapshot volume named like a backup snapshot
was lingering around, preventing the script to work. So this is no
exotic corner case, but happens in real life.

I observe this since I dist-upgraded to wheezy.

Regards,
Andreas

_______________________________________________
linux-lvm mailing list
linux-lvm@redhat.com
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/




[Index of Archives]     [Gluster Users]     [Kernel Development]     [Linux Clusters]     [Device Mapper]     [Security]     [Bugtraq]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]

  Powered by Linux