On 04/29/2015 09:08 AM, Anton Aylward wrote:
On 04/29/2015 11:05 AM, Malcolm wrote:
Have you adjusted the snapper config?
IMHO that is key and could relate to Patrick's problem too.
Default is to create snapshots hourly ... And delete some hourly. If that turns out wrong, somehow, it can produce the fillup/empty cycle.
Yes, I know snapshots are supposed to be about things that change and are supposed to be COW, but things can go wrong. I see watching the appropriate list that a lot of patches occur DAILY and many of them imply the FS isn't doing what the design specs say it was supposed to. This might be one area with the revision Patrick has.
Possibly .... Maybe ... Somehow. Worth checking?
Part of the problem with hourly is that it just snapshots far too much of the system, picking up things that are inflight, mail queues, and such. Btrfs mostly behaved when I suppressed hourly, reduced the number of snapshots retained on all the others. But then I had filesystem corruption twice in 6 months and the second time I lost data. That was the end of my btrfs experiment. When the patch frequency falls to monthly I may revisit it, although I can't say as I saw any real benefit. Subtly pushing btrfs as the suggested file system was a courageous step on Opensuse's part. Sort of like when they "suggested" KDE4 two years before it was useable. -- After all is said and done, more is said than done. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org