I requested a brick be removed from a distribute only volume and it seems to be migrating data from the wrong brick... unless I am reading this wrong which I doubt because the disk usage is definitely decreasing on the wrong brick.
gluster> volume status Status of volume: video-backup Gluster process TCP Port RDMA Port Online Pid ------------------------------------------------------------------------------ Brick 10.0.0.41:/export/md0/brick 49172 0 Y 5306 Brick 10.0.0.42:/export/md0/brick 49172 0 Y 3651 Brick 10.0.0.43:/export/md0/brick 49155 0 Y 2826 Brick 10.0.0.41:/export/md1/brick 49173 0 Y 5311 Brick 10.0.0.42:/export/md1/brick 49173 0 Y 3656 Brick 10.0.0.41:/export/md2/brick 49174 0 Y 5316 Brick 10.0.0.42:/export/md2/brick 49174 0 Y 3662 Brick 10.0.0.41:/export/md3/brick 49175 0 Y 5322 Brick 10.0.0.42:/export/md3/brick 49175 0 Y 3667 Brick 10.0.0.43:/export/md1/brick 49156 0 Y 4836 Task Status of Volume video-backup ------------------------------------------------------------------------------ Task : Rebalance ID : 7895be7c-4ab9-440d-a301-c11dae0dd9e1 Status : completed gluster> volume remove-brick video-backup 10.0.0.43:/export/md1/brick start volume remove-brick start: success ID: f666a196-03c2-4940-bd38-45d8383345a4 gluster> volume status Status of volume: video-backup Gluster process TCP Port RDMA Port Online Pid ------------------------------------------------------------------------------ Brick 10.0.0.41:/export/md0/brick 49172 0 Y 5306 Brick 10.0.0.42:/export/md0/brick 49172 0 Y 3651 Brick 10.0.0.43:/export/md0/brick 49155 0 Y 2826 Brick 10.0.0.41:/export/md1/brick 49173 0 Y 5311 Brick 10.0.0.42:/export/md1/brick 49173 0 Y 3656 Brick 10.0.0.41:/export/md2/brick 49174 0 Y 5316 Brick 10.0.0.42:/export/md2/brick 49174 0 Y 3662 Brick 10.0.0.41:/export/md3/brick 49175 0 Y 5322 Brick 10.0.0.42:/export/md3/brick 49175 0 Y 3667 Brick 10.0.0.43:/export/md1/brick 49156 0 Y 4836 Task Status of Volume video-backup ------------------------------------------------------------------------------ Task : Remove brick ID : f666a196-03c2-4940-bd38-45d8383345a4 Removed bricks: 10.0.0.43:/export/md1/brick Status : in progress But when I check the rebalance log on the host with the brick being removed, it is actually migrating data from the other brick on the same host 10.0.0.43:/export/md0/brick ..... [2018-12-11 11:59:52.572657] I [MSGID: 109086] [dht-shared.c:297:dht_parse_decommissioned_bricks] 0-video-backup-dht: *decommissioning subvolume video-backup-client-9* .... 29: volume video-backup-client-2 30: type protocol/client 31: option clnt-lk-version 1 32: option volfile-checksum 0 33: option volfile-key rebalance/video-backup 34: option client-version 3.8.15 35: option process-uuid node-dc4-03-25536-2018/12/11-11:59:47:551328-video-backup-client-2-0-0 36: option fops-version 1298437 37: option ping-timeout 42 38: option remote-host 10.0.0.43 39: option remote-subvolume /export/md0/brick 40: option transport-type socket 41: option transport.address-family inet 42: option username 9e7fe743-ecd7-40aa-b3db-e112086b2fc7 43: option password dab178d6-ecb4-4293-8c1d-6281ec2cafc2 44: end-volume ... 112: volume video-backup-client-9 113: type protocol/client 114: option ping-timeout 42 115: option remote-host 10.0.0.43 116: option remote-subvolume /export/md1/brick 117: option transport-type socket 118: option transport.address-family inet 119: option username 9e7fe743-ecd7-40aa-b3db-e112086b2fc7 120: option password dab178d6-ecb4-4293-8c1d-6281ec2cafc2 121: end-volume ... [2018-12-11 11:59:52.608698] I [dht-rebalance.c:3668:gf_defrag_start_crawl] 0-video-backup-dht: gf_defrag_start_crawl using commit hash 3766302106 [2018-12-11 11:59:52.609478] I [MSGID: 109081] [dht-common.c:4198:dht_setxattr] 0-video-backup-dht: fixing the layout of / [2018-12-11 11:59:52.615348] I [MSGID: 0] [dht-rebalance.c:3746:gf_defrag_start_crawl] 0-video-backup-dht: local subvols are video-backup-client-2 [2018-12-11 11:59:52.615378] I [MSGID: 0] [dht-rebalance.c:3746:gf_defrag_start_crawl] 0-video-backup-dht: local subvols are video-backup-client-9 ... [2018-12-11 11:59:52.616554] I [dht-rebalance.c:2652:gf_defrag_process_dir] 0-video-backup-dht: migrate data called on / [2018-12-11 11:59:54.000363] I [dht-rebalance.c:1230:dht_migrate_file] 0-video-backup-dht: /symlinks.txt: attempting to move from video-backup-client-2 to video-backup-client-4 [2018-12-11 11:59:55.110549] I [MSGID: 109022] [dht-rebalance.c:1703:dht_migrate_file] 0-video-backup-dht: completed migration of /symlinks.txt from subvolume video-backup-client-2 to video-backup-client-4 [2018-12-11 11:59:58.100931] I [MSGID: 109081] [dht-common.c:4198:dht_setxattr] 0-video-backup-dht: fixing the layout of /A6 [2018-12-11 11:59:58.107389] I [dht-rebalance.c:2652:gf_defrag_process_dir] 0-video-backup-dht: migrate data called on /A6 [2018-12-11 11:59:58.132138] I [dht-rebalance.c:2866:gf_defrag_process_dir] 0-video-backup-dht: Migration operation on dir /A6 took 0.02 secs [2018-12-11 11:59:58.330393] I [MSGID: 109081] [dht-common.c:4198:dht_setxattr] 0-video-backup-dht: fixing the layout of /A6/2017 [2018-12-11 11:59:58.337601] I [dht-rebalance.c:2652:gf_defrag_process_dir] 0-video-backup-dht: migrate data called on /A6/2017 [2018-12-11 11:59:58.493906] I [dht-rebalance.c:1230:dht_migrate_file] 0-video-backup-dht: /A6/2017/57c81ed09f31cd6c1c8990ae20160908101048: attempting to move from video-backup-client-2 to video-backup-client-4 [2018-12-11 11:59:58.706068] I [dht-rebalance.c:1230:dht_migrate_file] 0-video-backup-dht: /A6/2017/57c81ed09f31cd6c1c8990ae20160908120734132317: attempting to move from video-backup-client-2 to video-backup-client-4 [2018-12-11 11:59:58.783952] I [dht-rebalance.c:1230:dht_migrate_file] 0-video-backup-dht: /A6/2017/584a8bcdaca0515f595dff8820161124091841: attempting to move from video-backup-client-2 to video-backup-client-4 [2018-12-11 11:59:58.843315] I [dht-rebalance.c:1230:dht_migrate_file] 0-video-backup-dht: /A6/2017/584a8bcdaca0515f595dff8820161124135453: attempting to move from video-backup-client-2 to video-backup-client-4 [2018-12-11 11:59:58.951637] I [dht-rebalance.c:1230:dht_migrate_file] 0-video-backup-dht: /A6/2017/584a8bcdaca0515f595dff8820161122111252: attempting to move from video-backup-client-2 to video-backup-client-4 [2018-12-11 11:59:59.005324] I [dht-rebalance.c:2866:gf_defrag_process_dir] 0-video-backup-dht: Migration operation on dir /A6/2017 took 0.67 secs [2018-12-11 11:59:59.005362] I [dht-rebalance.c:1230:dht_migrate_file] 0-video-backup-dht: /A6/2017/58906aaaaca0515f5994104d20170213154555: attempting to move from video-backup-client-2 to video-backup-client-4 etc... Can I stop/cancel it without data loss? How can I make gluster remove the correct brick? Thanks
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