Hi guys, i catch strange problem: btrfs with mysql, mysql rewrite data, but space consumption only increasing i.e:
df -h /dev/sdb1 112G 73G 39G 66% /var/lib/mysql du -hs 43G /var/lib/mysql/ btrfs fi df /var/lib/mysql Data, single: total=78.00GiB, used=72.39GiB System, single: total=32.00MiB, used=16.00KiB Metadata, single: total=1.00GiB, used=109.61MiB GlobalReserve, single: total=48.00MiB, used=0.00B This is fresh fs (seven hours old) Created by btrfs-progs 4.1.2 Linux 4.2.0-0.bpo.1-amd64 #1 SMP Debian 4.2.6-3~bpo8+2 (2015-12-14) x86_64 GNU/Linux Btrfsck not found any errors on this device P.S. First i think what it because system have opened files descriptors, but after reboot, space not return If i write file by dd and after delete it, space will returned (with direct io and without) -- Have a nice day, Timofey. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html