Thank you, Kirill! I am grateful for your answer! I reproduced this issue specially for you on one container with 2.4 times (240% vs 20%) overuse.
I do my tests with current vzctl and ploop 1.12.2 (with fixed http://bugzilla.openvz.org/show_bug.cgi?id=3156). Please check this gist: https://gist.github.com/pavel-odintsov/b2162c0f7588bb8e5c15 I can't describe this behavior without complying on ext4 data.... But I I will be very happy if you fix it :) On Sat, Jan 10, 2015 at 12:29 AM, Kirill Korotaev <d...@parallels.com> wrote: > >> On 09 Jan 2015, at 21:39, Pavel Odintsov <pavel.odint...@gmail.com> wrote: >> >> Hello, everybody! >> >> Do somebody have any news about ZFS and OpenVZ experience? >> >> Why not? >> >> Did you checked my comparison table for simfs vs ploop vs ZFS volumes? >> You should do it ASAP: >> https://github.com/pavel-odintsov/OpenVZ_ZFS/blob/master/openvz_storage_backends.md >> >> Still not interesting? >> >> For example if you have 5Tb disk array (used up to 90%) and using >> ploop now you lose about 800GB of disk space! > > Well, AFAIR we simply have a threshold that ploop is not compacted until it’s > size is 20% bigger then it should be… > Also you can try smaller ploop block size. Anyway, my point is that it has > nothing to do with ext4 metadata as stated in your table. > > >> This data is from real HWN with few hundreds of containers. >> >> I have excellent experience and very good news about ZFS! ZFS on Linux >> team will add very important feature, linux quota inside container >> (more details here https://github.com/zfsonlinux/zfs/pull/2577 >> >> But still no news about ZFS from OpenVZ team (and even from Virtuozza >> Core) and we can work separately :) >> >> Fortunately, we do not need any support from vzctl and can use "raw >> vzctl" with some lightweight manuals from my repo: >> https://github.com/pavel-odintsov/OpenVZ_ZFS/blob/master/OpenVZ_containers_on_zfs_filesystem.md >> >> I collected all useful information here >> https://github.com/pavel-odintsov/OpenVZ_ZFS >> >> Stay tuned! Join to us! >> >> -- >> Sincerely yours, Pavel Odintsov >> _______________________________________________ >> Users mailing list >> Users@openvz.org >> https://lists.openvz.org/mailman/listinfo/users > > > _______________________________________________ > Users mailing list > Users@openvz.org > https://lists.openvz.org/mailman/listinfo/users -- Sincerely yours, Pavel Odintsov _______________________________________________ Users mailing list Users@openvz.org https://lists.openvz.org/mailman/listinfo/users
