On Mon, Jul 20, 2015 at 3:21 PM, Matthias G. Eckermann
Hello Chris,
Am 20. Juli 2015 20:20:36 MESZ, schrieb Chris Murphy
: On Mon, Jul 20, 2015 at 11:13 AM, Matthias G. Eckermann
wrote: And with respect to the number of snapshots: size is the limit.
In theory that's true, in practice Btrfs itself has problems with many snapshots at the moment irrespective of available free space in the volume.
my experience with btrfs is different in the positive way.
Can you point us to SUSE bugreports indicating the opposite?
No, that information is on the upstream linux-btrfs@ list. It's come up several times, in particular when deleting many snapshots because the metadata for all extents involved must be visited and rewritten so a lot of deletion can cause a lot of writing. On of the more well knowns cases is with VM images and databasess, even when not snapshotting and even when using chattr +C. vmm-libvirt places its images in /var/lib/libvirt/images and isn't excluded from snapper, so that's a problem source. But snapshotting makes the problem worse, quickly. http://www.spinics.net/lists/linux-btrfs/msg40563.html -- Chris Murphy -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org