Hi There, I'd like to test and understand the self heal feature of glusterfs. This is what I did with 3.3.1-ubuntu1~precise4 on Ubuntu 12.04.1 LTS. gluster volume create gtest replica 2 gluster3:/zfs-test gluster4:/zfs-test where zfs-test is a zfs pool on partition /dev/sda6 in both nodes. To simulate a random corruption on node gluster3 dd if=/dev/urandom of=/dev/sda6 bs=1024 count=20480 Now zfs detected the corrupted files pool: zfs-test state: ONLINEstatus: One or more devices has experienced an error resulting in data corruption. Applications may be affected.action: Restore the file in question if possible. Otherwise restore the entire pool from backup. see: http://zfsonlinux.org/msg/ZFS-8000-8A scan: none requestedconfig: NAME STATE READ WRITE CKSUM zfs-test ONLINE 0 0 2.29K sda6 ONLINE 0 0 4.59Kerrors: Permanent errors have been detected in the following files: /zfs-test/<xattrdir>/trusted.gfid /zfs-test/.glusterfs/b0/1e/b01ec17c-14cc-4999-938b-b4a71e358b46 /zfs-test/.glusterfs/b0/1e/b01ec17c-14cc-4999-938b-b4a71e358b46/<xattrdir>/trusted.gfid /zfs-test/.glusterfs/dd/8c/dd8c6797-18c3-4f3b-b1ca-86def2b578c5/<xattrdir>/trusted.gfid Now the gluster log file shows the self heal can't fix the corruption [2013-01-08 12:46:03.371214] W [afr-common.c:1196:afr_detect_self_heal_by_iatt] 2-gtest-replicate-0: /K.iso: gfid different on subvolume [2013-01-08 12:46:03.373539] E [afr-self-heal-common.c:1419:afr_sh_common_lookup_cbk] 2-gtest-replicate-0: Missing Gfids for /K.iso [2013-01-08 12:46:03.385701] E [afr-self-heal-common.c:2160:afr_self_heal_completion_cbk] 2-gtest-replicate-0: background gfid self-heal failed on /K.iso [2013-01-08 12:46:03.385760] W [fuse-bridge.c:292:fuse_entry_cbk] 0-glusterfs-fuse: 11901: LOOKUP() /K.iso => -1 (No data available) where K.iso is one of the sample files affected by the dd command. So could anyone tell me what is the best way to repair the simulated corruption? Thank you. Liang -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://supercolony.gluster.org/pipermail/gluster-users/attachments/20130108/89b37166/attachment-0001.html>
