[Gluster-users] Rebalance failed on Distributed Disperse volume based on 3.12.14 version
Mauro Tridici
mauro.tridici at cmcc.it
Mon Oct 8 08:57:35 UTC 2018
Hi Nithya,
thank you, my answers are in lines.
> Il giorno 08 ott 2018, alle ore 10:43, Nithya Balachandran <nbalacha at redhat.com> ha scritto:
>
> Hi Mauro,
>
> Yes, a rebalance consists of 2 operations for every directory:
> Fix the layout for the new volume config (newly added or removed bricks)
> Migrate files to their new hashed subvols based on the new layout
>
> Are you running a rebalance because you added new bricks to the volume ? As per an earlier email you have already run a fix-layout.
Yes, we added new bricks to the volume and we already executed fix-layout before.
> On s04, please check the rebalance log file to see why the rebalance failed.
On s04, rebalance failed after the following errors (before these lines no errors were found):
[2018-10-06 00:13:37.359634] I [MSGID: 109063] [dht-layout.c:716:dht_layout_normalize] 0-tier2-dht: Found anomalies in / (gfid = 00000000-0000-0000-0000-000000000001). Holes=2 overlaps=0
[2018-10-06 00:13:37.362424] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-7: Failed to get size and version [Input/output error]
[2018-10-06 00:13:37.362504] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-7: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:37.362525] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-7: Failed to update version and size [Input/output error]
[2018-10-06 00:13:37.363105] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-8: Failed to get size and version [Input/output error]
[2018-10-06 00:13:37.363163] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-8: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:37.363180] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-8: Failed to update version and size [Input/output error]
[2018-10-06 00:13:37.364920] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-11: Failed to get size and version [Input/output error]
[2018-10-06 00:13:37.364969] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-11: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:37.364985] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-11: Failed to update version and size [Input/output error]
[2018-10-06 00:13:37.366864] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-6: Failed to get size and version [Input/output error]
[2018-10-06 00:13:37.366912] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-6: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:37.366926] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-6: Failed to update version and size [Input/output error]
[2018-10-06 00:13:37.374818] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-9: Failed to get size and version [Input/output error]
[2018-10-06 00:13:37.374866] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-9: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:37.374879] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-9: Failed to update version and size [Input/output error]
[2018-10-06 00:13:37.406076] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-10: Failed to get size and version [Input/output error]
[2018-10-06 00:13:37.406145] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-10: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:37.406183] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-10: Failed to update version and size [Input/output error]
[2018-10-06 00:13:51.039835] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-11: Failed to get size and version [Input/output error]
[2018-10-06 00:13:51.039911] E [MSGID: 109006] [dht-selfheal.c:673:dht_selfheal_dir_xattr_cbk] 0-tier2-dht: layout setxattr failed on tier2-disperse-11, path:/ gfid:00000000-0000-0000-0000-000000000001 [Input/output error]
[2018-10-06 00:13:51.039944] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-11: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:51.039958] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-11: Failed to update version and size [Input/output error]
[2018-10-06 00:13:51.040441] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-7: Failed to get size and version [Input/output error]
[2018-10-06 00:13:51.040480] E [MSGID: 109006] [dht-selfheal.c:673:dht_selfheal_dir_xattr_cbk] 0-tier2-dht: layout setxattr failed on tier2-disperse-7, path:/ gfid:00000000-0000-0000-0000-000000000001 [Input/output error]
[2018-10-06 00:13:51.040518] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-7: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:51.040534] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-7: Failed to update version and size [Input/output error]
[2018-10-06 00:13:51.061789] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-9: Failed to get size and version [Input/output error]
[2018-10-06 00:13:51.061830] E [MSGID: 109006] [dht-selfheal.c:673:dht_selfheal_dir_xattr_cbk] 0-tier2-dht: layout setxattr failed on tier2-disperse-9, path:/ gfid:00000000-0000-0000-0000-000000000001 [Input/output error]
[2018-10-06 00:13:51.061859] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-9: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:51.061873] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-9: Failed to update version and size [Input/output error]
[2018-10-06 00:13:51.062283] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-8: Failed to get size and version [Input/output error]
[2018-10-06 00:13:51.062323] E [MSGID: 109006] [dht-selfheal.c:673:dht_selfheal_dir_xattr_cbk] 0-tier2-dht: layout setxattr failed on tier2-disperse-8, path:/ gfid:00000000-0000-0000-0000-000000000001 [Input/output error]
[2018-10-06 00:13:51.062353] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-8: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:51.062367] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-8: Failed to update version and size [Input/output error]
[2018-10-06 00:13:51.064613] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-6: Failed to get size and version [Input/output error]
[2018-10-06 00:13:51.064655] E [MSGID: 109006] [dht-selfheal.c:673:dht_selfheal_dir_xattr_cbk] 0-tier2-dht: layout setxattr failed on tier2-disperse-6, path:/ gfid:00000000-0000-0000-0000-000000000001 [Input/output error]
[2018-10-06 00:13:51.064685] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-6: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:51.064700] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-6: Failed to update version and size [Input/output error]
[2018-10-06 00:13:51.064727] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-10: Failed to get size and version [Input/output error]
[2018-10-06 00:13:51.064766] E [MSGID: 109006] [dht-selfheal.c:673:dht_selfheal_dir_xattr_cbk] 0-tier2-dht: layout setxattr failed on tier2-disperse-10, path:/ gfid:00000000-0000-0000-0000-000000000001 [Input/output error]
[2018-10-06 00:13:51.064794] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-10: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:51.064815] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-10: Failed to update version and size [Input/output error]
[2018-10-06 00:13:53.695948] I [dht-rebalance.c:4512:gf_defrag_start_crawl] 0-tier2-dht: gf_defrag_start_crawl using commit hash 3720343841
[2018-10-06 00:13:53.696837] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-11: Failed to get size and version [Input/output error]
[2018-10-06 00:13:53.696906] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-11: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:53.696924] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-11: Failed to update version and size [Input/output error]
[2018-10-06 00:13:53.697549] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-7: Failed to get size and version [Input/output error]
[2018-10-06 00:13:53.697599] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-7: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:53.697620] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-7: Failed to update version and size [Input/output error]
[2018-10-06 00:13:53.704120] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-8: Failed to get size and version [Input/output error]
[2018-10-06 00:13:53.704262] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-8: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:53.704342] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-8: Failed to update version and size [Input/output error]
[2018-10-06 00:13:53.707260] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-10: Failed to get size and version [Input/output error]
[2018-10-06 00:13:53.707312] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-10: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:53.707329] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-10: Failed to update version and size [Input/output error]
[2018-10-06 00:13:53.718301] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-6: Failed to get size and version [Input/output error]
[2018-10-06 00:13:53.718350] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-6: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:53.718367] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-6: Failed to update version and size [Input/output error]
[2018-10-06 00:13:55.626130] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-9: Failed to get size and version [Input/output error]
[2018-10-06 00:13:55.626207] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-9: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:13:55.626228] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-9: Failed to update version and size [Input/output error]
[2018-10-06 00:13:55.626231] I [MSGID: 109081] [dht-common.c:4379:dht_setxattr] 0-tier2-dht: fixing the layout of /
[2018-10-06 00:13:55.862374] I [dht-rebalance.c:5063:gf_defrag_status_get] 0-glusterfs: TIME: Estimated total time to complete (size)= 0 seconds, seconds left = 0
[2018-10-06 00:13:55.862440] I [MSGID: 109028] [dht-rebalance.c:5143:gf_defrag_status_get] 0-glusterfs: Rebalance is in progress. Time taken is 20.00 secs
[2018-10-06 00:13:55.862460] I [MSGID: 109028] [dht-rebalance.c:5147:gf_defrag_status_get] 0-glusterfs: Files migrated: 0, size: 0, lookups: 0, failures: 0, skipped: 0
[2018-10-06 00:14:12.476927] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-11: Failed to get size and version [Input/output error]
[2018-10-06 00:14:12.477020] E [MSGID: 109006] [dht-selfheal.c:673:dht_selfheal_dir_xattr_cbk] 0-tier2-dht: layout setxattr failed on tier2-disperse-11, path:/ gfid:00000000-0000-0000-0000-000000000001 [Input/output error]
[2018-10-06 00:14:12.477077] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-11: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:14:12.477094] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-11: Failed to update version and size [Input/output error]
[2018-10-06 00:14:12.477644] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-7: Failed to get size and version [Input/output error]
[2018-10-06 00:14:12.477695] E [MSGID: 109006] [dht-selfheal.c:673:dht_selfheal_dir_xattr_cbk] 0-tier2-dht: layout setxattr failed on tier2-disperse-7, path:/ gfid:00000000-0000-0000-0000-000000000001 [Input/output error]
[2018-10-06 00:14:12.477726] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-7: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:14:12.477740] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-7: Failed to update version and size [Input/output error]
[2018-10-06 00:14:12.477853] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-8: Failed to get size and version [Input/output error]
[2018-10-06 00:14:12.477894] E [MSGID: 109006] [dht-selfheal.c:673:dht_selfheal_dir_xattr_cbk] 0-tier2-dht: layout setxattr failed on tier2-disperse-8, path:/ gfid:00000000-0000-0000-0000-000000000001 [Input/output error]
[2018-10-06 00:14:12.477923] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-8: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:14:12.477937] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-8: Failed to update version and size [Input/output error]
[2018-10-06 00:14:12.486862] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-6: Failed to get size and version [Input/output error]
[2018-10-06 00:14:12.486902] E [MSGID: 109006] [dht-selfheal.c:673:dht_selfheal_dir_xattr_cbk] 0-tier2-dht: layout setxattr failed on tier2-disperse-6, path:/ gfid:00000000-0000-0000-0000-000000000001 [Input/output error]
[2018-10-06 00:14:12.486929] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-6: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:14:12.486944] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-6: Failed to update version and size [Input/output error]
[2018-10-06 00:14:12.493872] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-10: Failed to get size and version [Input/output error]
[2018-10-06 00:14:12.493912] E [MSGID: 109006] [dht-selfheal.c:673:dht_selfheal_dir_xattr_cbk] 0-tier2-dht: layout setxattr failed on tier2-disperse-10, path:/ gfid:00000000-0000-0000-0000-000000000001 [Input/output error]
[2018-10-06 00:14:12.493939] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-10: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:14:12.493954] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-10: Failed to update version and size [Input/output error]
[2018-10-06 00:14:12.494560] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-9: Failed to get size and version [Input/output error]
[2018-10-06 00:14:12.494598] E [MSGID: 109006] [dht-selfheal.c:673:dht_selfheal_dir_xattr_cbk] 0-tier2-dht: layout setxattr failed on tier2-disperse-9, path:/ gfid:00000000-0000-0000-0000-000000000001 [Input/output error]
[2018-10-06 00:14:12.494624] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-9: Insufficient available children for this request (have 0, need 4)
[2018-10-06 00:14:12.494640] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-9: Failed to update version and size [Input/output error]
[2018-10-06 00:14:12.795320] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-7: Failed to get size and version [Input/output error]
[2018-10-06 00:14:12.795366] E [MSGID: 109039] [dht-common.c:3113:dht_find_local_subvol_cbk] 0-tier2-dht: getxattr err for dir [Input/output error]
[2018-10-06 00:14:12.795796] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-11: Failed to get size and version [Input/output error]
[2018-10-06 00:14:12.795834] E [MSGID: 109039] [dht-common.c:3113:dht_find_local_subvol_cbk] 0-tier2-dht: getxattr err for dir [Input/output error]
[2018-10-06 00:14:12.804770] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-6: Failed to get size and version [Input/output error]
[2018-10-06 00:14:12.804803] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-10: Failed to get size and version [Input/output error]
[2018-10-06 00:14:12.804811] E [MSGID: 109039] [dht-common.c:3113:dht_find_local_subvol_cbk] 0-tier2-dht: getxattr err for dir [Input/output error]
[2018-10-06 00:14:12.804850] E [MSGID: 109039] [dht-common.c:3113:dht_find_local_subvol_cbk] 0-tier2-dht: getxattr err for dir [Input/output error]
[2018-10-06 00:14:12.808500] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-8: Failed to get size and version [Input/output error]
[2018-10-06 00:14:12.808563] E [MSGID: 109039] [dht-common.c:3113:dht_find_local_subvol_cbk] 0-tier2-dht: getxattr err for dir [Input/output error]
[2018-10-06 00:14:12.812431] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-9: Failed to get size and version [Input/output error]
[2018-10-06 00:14:12.812468] E [MSGID: 109039] [dht-common.c:3113:dht_find_local_subvol_cbk] 0-tier2-dht: getxattr err for dir [Input/output error]
[2018-10-06 00:14:12.812497] E [MSGID: 0] [dht-rebalance.c:4336:dht_get_local_subvols_and_nodeuuids] 0-tier2-dht: local subvolume determination failed with error: 5 [Input/output error]
[2018-10-06 00:14:12.812700] I [MSGID: 109028] [dht-rebalance.c:5143:gf_defrag_status_get] 0-tier2-dht: Rebalance is failed. Time taken is 37.00 secs
[2018-10-06 00:14:12.812720] I [MSGID: 109028] [dht-rebalance.c:5147:gf_defrag_status_get] 0-tier2-dht: Files migrated: 0, size: 0, lookups: 0, failures: 0, skipped: 0
[2018-10-06 00:14:12.812870] W [glusterfsd.c:1375:cleanup_and_exit] (-->/lib64/libpthread.so.0(+0x7e25) [0x7efe75d18e25] -->/usr/sbin/glusterfs(glusterfs_sigwaiter+0xe5) [0x5623973d64b5] -->/usr/sbin/glusterfs(cleanup_and_exit+0x6b) [0x5623973d632b] ) 0-: received signum (15), shutting down
Regards,
Mauro
>
> Regards,
> Nithya
>
> On 8 October 2018 at 13:22, Mauro Tridici <mauro.tridici at cmcc.it <mailto:mauro.tridici at cmcc.it>> wrote:
> Hi All,
>
> for your information, this is the current rebalance status:
>
> [root at s01 ~]# gluster volume rebalance tier2 status
> Node Rebalanced-files size scanned failures skipped status run time in h:m:s
> --------- ----------- ----------- ----------- ----------- ----------- ------------ --------------
> localhost 551922 20.3TB 2349397 0 61849 in progress 55:25:38
> s02-stg 287631 13.2TB 959954 0 30262 in progress 55:25:39
> s03-stg 288523 12.7TB 973111 0 30220 in progress 55:25:39
> s04-stg 0 0Bytes 0 0 0 failed 0:00:37
> s05-stg 0 0Bytes 0 0 0 completed 48:33:03
> s06-stg 0 0Bytes 0 0 0 completed 48:33:02
> Estimated time left for rebalance to complete : 1023:49:56
> volume rebalance: tier2: success
>
> Rebalance is migrating files on s05, s06 servers and on s04 too (although it is marked as failed).
> s05 and s06 tasks are completed.
>
> Questions:
>
> 1) it seems that rebalance is moving files, but it is fixing the layout also, is it normal?
> 2) when rebalance will be completed, what we need to do before return the gluster storage to the users? We have to launch rebalance again in order to involve s04 server too or a fix-layout to eventually fix some error on s04?
>
> Thank you very much,
> Mauro
>
>
>> Il giorno 07 ott 2018, alle ore 10:29, Mauro Tridici <mauro.tridici at cmcc.it <mailto:mauro.tridici at cmcc.it>> ha scritto:
>>
>>
>> Hi All,
>>
>> some important updates about the issue mentioned below.
>> After rebalance failed on all the servers, I decided to:
>>
>> - stop gluster volume
>> - reboot the servers
>> - start gluster volume
>> - change some gluster volume options
>> - start the rebalance again
>>
>> The options that I changed are listed below after reading some threads on gluster users mailing list:
>>
>> BEFORE CHANGE:
>> gluster volume set tier2 network.ping-timeout 02
>> gluster volume set all cluster.brick-multiplex on
>> gluster volume set tier2 cluster.server-quorum-ratio 51%
>> gluster volume set tier2 cluster.server-quorum-type server
>> gluster volume set tier2 cluster.quorum-type auto
>>
>> AFTER CHANGE:
>>
>> gluster volume set tier2 network.ping-timeout 42
>> gluster volume set all cluster.brick-multiplex off
>> gluster volume set tier2 cluster.server-quorum-ratio none
>> gluster volume set tier2 cluster.server-quorum-type none
>> gluster volume set tier2 cluster.quorum-type none
>>
>> The result was that rebalance starts moving data from s01, s02 ed s03 servers to s05 and s06 servers (the new added ones), but it failed on s04 server after 37 seconds.
>> The rebalance is still running and moving data as you can see from the output:
>>
>> [root at s01 ~]# gluster volume rebalance tier2 status
>> Node Rebalanced-files size scanned failures skipped status run time in h:m:s
>> --------- ----------- ----------- ----------- ----------- ----------- ------------ --------------
>> localhost 286680 12.6TB 1217960 0 43343 in progress 32:10:24
>> s02-stg 126291 12.4TB 413077 0 21932 in progress 32:10:25
>> s03-stg 126516 11.9TB 433014 0 21870 in progress 32:10:25
>> s04-stg 0 0Bytes 0 0 0 failed 0:00:37
>> s05-stg 0 0Bytes 0 0 0 in progress 32:10:25
>> s06-stg 0 0Bytes 0 0 0 in progress 32:10:25
>> Estimated time left for rebalance to complete : 624:47:48
>> volume rebalance: tier2: success
>>
>> When rebalance will be completed, we are planning to re-launch it to try to involve s04 server also.
>> Do you have some idea about what happened in my previous message and why, now, rebalance it’s running although it’s not involve s04 server?
>>
>> In attachment the complete tier2-rebalance.log file related to s04 server.
>>
>> Thank you very much for your help,
>> Mauro
>>
>>
>> <tier2-rebalance.log.gz>
>>
>>> Il giorno 06 ott 2018, alle ore 02:01, Mauro Tridici <mauro.tridici at cmcc.it <mailto:mauro.tridici at cmcc.it>> ha scritto:
>>>
>>>
>>> Hi All,
>>>
>>> since we need to restore gluster storage as soon as possible, we decided to ignore the few files that could be lost and to go ahead.
>>> So we cleaned all bricks content of servers s04, s05 and s06.
>>>
>>> As planned some days ago, we executed the following commands:
>>>
>>> gluster peer detach s04
>>> gluster peer detach s05
>>> gluster peer detach s06
>>>
>>> gluster peer probe s04
>>> gluster peer probe s05
>>> gluster peer probe s06
>>>
>>> gluster volume add-brick tier2 s04-stg:/gluster/mnt1/brick s05-stg:/gluster/mnt1/brick s06-stg:/gluster/mnt1/brick s04-stg:/gluster/mnt2/brick s05-stg:/gluster/mnt2/brick s06-stg:/gluster/mnt2/brick s04-stg:/gluster/mnt3/brick s05-stg:/gluster/mnt3/brick s06-stg:/gluster/mnt3/brick s04-stg:/gluster/mnt4/brick s05-stg:/gluster/mnt4/brick s06-stg:/gluster/mnt4/brick s04-stg:/gluster/mnt5/brick s05-stg:/gluster/mnt5/brick s06-stg:/gluster/mnt5/brick s04-stg:/gluster/mnt6/brick s05-stg:/gluster/mnt6/brick s06-stg:/gluster/mnt6/brick s04-stg:/gluster/mnt7/brick s05-stg:/gluster/mnt7/brick s06-stg:/gluster/mnt7/brick s04-stg:/gluster/mnt8/brick s05-stg:/gluster/mnt8/brick s06-stg:/gluster/mnt8/brick s04-stg:/gluster/mnt9/brick s05-stg:/gluster/mnt9/brick s06-stg:/gluster/mnt9/brick s04-stg:/gluster/mnt10/brick s05-stg:/gluster/mnt10/brick s06-stg:/gluster/mnt10/brick s04-stg:/gluster/mnt11/brick s05-stg:/gluster/mnt11/brick s06-stg:/gluster/mnt11/brick s04-stg:/gluster/mnt12/brick s05-stg:/gluster/mnt12/brick s06-stg:/gluster/mnt12/brick force
>>>
>>> gluster volume rebalance tier2 fix-layout start
>>>
>>> Everything seem to be fine and fix-layout ended.
>>>
>>> [root at s01 ~]# gluster volume rebalance tier2 status
>>> Node status run time in h:m:s
>>> --------- ----------- ------------
>>> localhost fix-layout completed 12:11:6
>>> s02-stg fix-layout completed 12:11:18
>>> s03-stg fix-layout completed 12:11:12
>>> s04-stg fix-layout completed 12:11:20
>>> s05-stg fix-layout completed 12:11:14
>>> s06-stg fix-layout completed 12:10:47
>>> volume rebalance: tier2: success
>>>
>>> [root at s01 ~]# gluster volume info
>>>
>>> Volume Name: tier2
>>> Type: Distributed-Disperse
>>> Volume ID: a28d88c5-3295-4e35-98d4-210b3af9358c
>>> Status: Started
>>> Snapshot Count: 0
>>> Number of Bricks: 12 x (4 + 2) = 72
>>> Transport-type: tcp
>>> Bricks:
>>> Brick1: s01-stg:/gluster/mnt1/brick
>>> Brick2: s02-stg:/gluster/mnt1/brick
>>> Brick3: s03-stg:/gluster/mnt1/brick
>>> Brick4: s01-stg:/gluster/mnt2/brick
>>> Brick5: s02-stg:/gluster/mnt2/brick
>>> Brick6: s03-stg:/gluster/mnt2/brick
>>> Brick7: s01-stg:/gluster/mnt3/brick
>>> Brick8: s02-stg:/gluster/mnt3/brick
>>> Brick9: s03-stg:/gluster/mnt3/brick
>>> Brick10: s01-stg:/gluster/mnt4/brick
>>> Brick11: s02-stg:/gluster/mnt4/brick
>>> Brick12: s03-stg:/gluster/mnt4/brick
>>> Brick13: s01-stg:/gluster/mnt5/brick
>>> Brick14: s02-stg:/gluster/mnt5/brick
>>> Brick15: s03-stg:/gluster/mnt5/brick
>>> Brick16: s01-stg:/gluster/mnt6/brick
>>> Brick17: s02-stg:/gluster/mnt6/brick
>>> Brick18: s03-stg:/gluster/mnt6/brick
>>> Brick19: s01-stg:/gluster/mnt7/brick
>>> Brick20: s02-stg:/gluster/mnt7/brick
>>> Brick21: s03-stg:/gluster/mnt7/brick
>>> Brick22: s01-stg:/gluster/mnt8/brick
>>> Brick23: s02-stg:/gluster/mnt8/brick
>>> Brick24: s03-stg:/gluster/mnt8/brick
>>> Brick25: s01-stg:/gluster/mnt9/brick
>>> Brick26: s02-stg:/gluster/mnt9/brick
>>> Brick27: s03-stg:/gluster/mnt9/brick
>>> Brick28: s01-stg:/gluster/mnt10/brick
>>> Brick29: s02-stg:/gluster/mnt10/brick
>>> Brick30: s03-stg:/gluster/mnt10/brick
>>> Brick31: s01-stg:/gluster/mnt11/brick
>>> Brick32: s02-stg:/gluster/mnt11/brick
>>> Brick33: s03-stg:/gluster/mnt11/brick
>>> Brick34: s01-stg:/gluster/mnt12/brick
>>> Brick35: s02-stg:/gluster/mnt12/brick
>>> Brick36: s03-stg:/gluster/mnt12/brick
>>> Brick37: s04-stg:/gluster/mnt1/brick
>>> Brick38: s05-stg:/gluster/mnt1/brick
>>> Brick39: s06-stg:/gluster/mnt1/brick
>>> Brick40: s04-stg:/gluster/mnt2/brick
>>> Brick41: s05-stg:/gluster/mnt2/brick
>>> Brick42: s06-stg:/gluster/mnt2/brick
>>> Brick43: s04-stg:/gluster/mnt3/brick
>>> Brick44: s05-stg:/gluster/mnt3/brick
>>> Brick45: s06-stg:/gluster/mnt3/brick
>>> Brick46: s04-stg:/gluster/mnt4/brick
>>> Brick47: s05-stg:/gluster/mnt4/brick
>>> Brick48: s06-stg:/gluster/mnt4/brick
>>> Brick49: s04-stg:/gluster/mnt5/brick
>>> Brick50: s05-stg:/gluster/mnt5/brick
>>> Brick51: s06-stg:/gluster/mnt5/brick
>>> Brick52: s04-stg:/gluster/mnt6/brick
>>> Brick53: s05-stg:/gluster/mnt6/brick
>>> Brick54: s06-stg:/gluster/mnt6/brick
>>> Brick55: s04-stg:/gluster/mnt7/brick
>>> Brick56: s05-stg:/gluster/mnt7/brick
>>> Brick57: s06-stg:/gluster/mnt7/brick
>>> Brick58: s04-stg:/gluster/mnt8/brick
>>> Brick59: s05-stg:/gluster/mnt8/brick
>>> Brick60: s06-stg:/gluster/mnt8/brick
>>> Brick61: s04-stg:/gluster/mnt9/brick
>>> Brick62: s05-stg:/gluster/mnt9/brick
>>> Brick63: s06-stg:/gluster/mnt9/brick
>>> Brick64: s04-stg:/gluster/mnt10/brick
>>> Brick65: s05-stg:/gluster/mnt10/brick
>>> Brick66: s06-stg:/gluster/mnt10/brick
>>> Brick67: s04-stg:/gluster/mnt11/brick
>>> Brick68: s05-stg:/gluster/mnt11/brick
>>> Brick69: s06-stg:/gluster/mnt11/brick
>>> Brick70: s04-stg:/gluster/mnt12/brick
>>> Brick71: s05-stg:/gluster/mnt12/brick
>>> Brick72: s06-stg:/gluster/mnt12/brick
>>> Options Reconfigured:
>>> network.ping-timeout: 42
>>> features.scrub: Active
>>> features.bitrot: on
>>> features.inode-quota: on
>>> features.quota: on
>>> performance.client-io-threads: on
>>> cluster.min-free-disk: 10
>>> cluster.quorum-type: none
>>> transport.address-family: inet
>>> nfs.disable: on
>>> server.event-threads: 4
>>> client.event-threads: 4
>>> cluster.lookup-optimize: on
>>> performance.readdir-ahead: on
>>> performance.parallel-readdir: off
>>> cluster.readdir-optimize: on
>>> features.cache-invalidation: on
>>> features.cache-invalidation-timeout: 600
>>> performance.stat-prefetch: on
>>> performance.cache-invalidation: on
>>> performance.md-cache-timeout: 600
>>> network.inode-lru-limit: 50000
>>> performance.io <http://performance.io/>-cache: off
>>> disperse.cpu-extensions: auto
>>> performance.io <http://performance.io/>-thread-count: 16
>>> features.quota-deem-statfs: on
>>> features.default-soft-limit: 90
>>> cluster.server-quorum-type: none
>>> diagnostics.latency-measurement: on
>>> diagnostics.count-fop-hits: on
>>> cluster.brick-multiplex: off
>>> cluster.server-quorum-ratio: 51%
>>>
>>> The last step should be the data rebalance between the servers, but rebalance failed soon with a lot of errors like the following ones:
>>>
>>> [2018-10-05 23:48:38.644978] I [MSGID: 114035] [client-handshake.c:202:client_set_lk_version_cbk] 0-tier2-client-70: Server lk version = 1
>>> [2018-10-05 23:48:44.735323] I [dht-rebalance.c:4512:gf_defrag_start_crawl] 0-tier2-dht: gf_defrag_start_crawl using commit hash 3720331860
>>> [2018-10-05 23:48:44.736205] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-7: Failed to get size and version [Input/output error]
>>> [2018-10-05 23:48:44.736266] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-7: Insufficient available children for this request (have 0, need 4)
>>> [2018-10-05 23:48:44.736282] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-7: Failed to update version and size [Input/output error]
>>> [2018-10-05 23:48:44.736377] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-8: Failed to get size and version [Input/output error]
>>> [2018-10-05 23:48:44.736436] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-8: Insufficient available children for this request (have 0, need 4)
>>> [2018-10-05 23:48:44.736459] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-8: Failed to update version and size [Input/output error]
>>> [2018-10-05 23:48:44.736460] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-10: Failed to get size and version [Input/output error]
>>> [2018-10-05 23:48:44.736537] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-9: Failed to get size and version [Input/output error]
>>> [2018-10-05 23:48:44.736571] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-10: Insufficient available children for this request (have 0, need 4)
>>> [2018-10-05 23:48:44.736574] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-9: Insufficient available children for this request (have 0, need 4)
>>> [2018-10-05 23:48:44.736604] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-9: Failed to update version and size [Input/output error]
>>> [2018-10-05 23:48:44.736604] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-10: Failed to update version and size [Input/output error]
>>> [2018-10-05 23:48:44.736827] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-11: Failed to get size and version [Input/output error]
>>> [2018-10-05 23:48:44.736887] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-11: Insufficient available children for this request (have 0, need 4)
>>> [2018-10-05 23:48:44.736904] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-11: Failed to update version and size [Input/output error]
>>> [2018-10-05 23:48:44.740337] W [MSGID: 122040] [ec-common.c:1097:ec_prepare_update_cbk] 0-tier2-disperse-6: Failed to get size and version [Input/output error]
>>> [2018-10-05 23:48:44.740381] E [MSGID: 122034] [ec-common.c:613:ec_child_select] 0-tier2-disperse-6: Insufficient available children for this request (have 0, need 4)
>>> [2018-10-05 23:48:44.740394] E [MSGID: 122037] [ec-common.c:2040:ec_update_size_version_done] 0-tier2-disperse-6: Failed to update version and size [Input/output error]
>>> [2018-10-05 23:48:50.066103] I [MSGID: 109081] [dht-common.c:4379:dht_setxattr] 0-tier2-dht: fixing the layout of /
>>>
>>> In attachment you can find the first logs captured during the rebalance execution.
>>> In your opinion, is there a way to restore the gluster storage or all the data have been lost?
>>>
>>> Thank you in advance,
>>> Mauro
>>>
>>> <rebalance_log.txt>
>>>
>>>
>>>
>>>> Il giorno 04 ott 2018, alle ore 15:31, Mauro Tridici <mauro.tridici at cmcc.it <mailto:mauro.tridici at cmcc.it>> ha scritto:
>>>>
>>>>
>>>> Hi Nithya,
>>>>
>>>> thank you very much.
>>>> This is the current “gluster volume info” output after removing bricks (and after peer detach command).
>>>>
>>>> [root at s01 ~]# gluster volume info
>>>>
>>>> Volume Name: tier2
>>>> Type: Distributed-Disperse
>>>> Volume ID: a28d88c5-3295-4e35-98d4-210b3af9358c
>>>> Status: Started
>>>> Snapshot Count: 0
>>>> Number of Bricks: 6 x (4 + 2) = 36
>>>> Transport-type: tcp
>>>> Bricks:
>>>> Brick1: s01-stg:/gluster/mnt1/brick
>>>> Brick2: s02-stg:/gluster/mnt1/brick
>>>> Brick3: s03-stg:/gluster/mnt1/brick
>>>> Brick4: s01-stg:/gluster/mnt2/brick
>>>> Brick5: s02-stg:/gluster/mnt2/brick
>>>> Brick6: s03-stg:/gluster/mnt2/brick
>>>> Brick7: s01-stg:/gluster/mnt3/brick
>>>> Brick8: s02-stg:/gluster/mnt3/brick
>>>> Brick9: s03-stg:/gluster/mnt3/brick
>>>> Brick10: s01-stg:/gluster/mnt4/brick
>>>> Brick11: s02-stg:/gluster/mnt4/brick
>>>> Brick12: s03-stg:/gluster/mnt4/brick
>>>> Brick13: s01-stg:/gluster/mnt5/brick
>>>> Brick14: s02-stg:/gluster/mnt5/brick
>>>> Brick15: s03-stg:/gluster/mnt5/brick
>>>> Brick16: s01-stg:/gluster/mnt6/brick
>>>> Brick17: s02-stg:/gluster/mnt6/brick
>>>> Brick18: s03-stg:/gluster/mnt6/brick
>>>> Brick19: s01-stg:/gluster/mnt7/brick
>>>> Brick20: s02-stg:/gluster/mnt7/brick
>>>> Brick21: s03-stg:/gluster/mnt7/brick
>>>> Brick22: s01-stg:/gluster/mnt8/brick
>>>> Brick23: s02-stg:/gluster/mnt8/brick
>>>> Brick24: s03-stg:/gluster/mnt8/brick
>>>> Brick25: s01-stg:/gluster/mnt9/brick
>>>> Brick26: s02-stg:/gluster/mnt9/brick
>>>> Brick27: s03-stg:/gluster/mnt9/brick
>>>> Brick28: s01-stg:/gluster/mnt10/brick
>>>> Brick29: s02-stg:/gluster/mnt10/brick
>>>> Brick30: s03-stg:/gluster/mnt10/brick
>>>> Brick31: s01-stg:/gluster/mnt11/brick
>>>> Brick32: s02-stg:/gluster/mnt11/brick
>>>> Brick33: s03-stg:/gluster/mnt11/brick
>>>> Brick34: s01-stg:/gluster/mnt12/brick
>>>> Brick35: s02-stg:/gluster/mnt12/brick
>>>> Brick36: s03-stg:/gluster/mnt12/brick
>>>> Options Reconfigured:
>>>> network.ping-timeout: 0
>>>> features.scrub: Active
>>>> features.bitrot: on
>>>> features.inode-quota: on
>>>> features.quota: on
>>>> performance.client-io-threads: on
>>>> cluster.min-free-disk: 10
>>>> cluster.quorum-type: auto
>>>> transport.address-family: inet
>>>> nfs.disable: on
>>>> server.event-threads: 4
>>>> client.event-threads: 4
>>>> cluster.lookup-optimize: on
>>>> performance.readdir-ahead: on
>>>> performance.parallel-readdir: off
>>>> cluster.readdir-optimize: on
>>>> features.cache-invalidation: on
>>>> features.cache-invalidation-timeout: 600
>>>> performance.stat-prefetch: on
>>>> performance.cache-invalidation: on
>>>> performance.md-cache-timeout: 600
>>>> network.inode-lru-limit: 50000
>>>> performance.io <http://performance.io/>-cache: off
>>>> disperse.cpu-extensions: auto
>>>> performance.io <http://performance.io/>-thread-count: 16
>>>> features.quota-deem-statfs: on
>>>> features.default-soft-limit: 90
>>>> cluster.server-quorum-type: server
>>>> diagnostics.latency-measurement: on
>>>> diagnostics.count-fop-hits: on
>>>> cluster.brick-multiplex: on
>>>> cluster.server-quorum-ratio: 51%
>>>>
>>>> Regards,
>>>> Mauro
>>>>
>>>>> Il giorno 04 ott 2018, alle ore 15:22, Nithya Balachandran <nbalacha at redhat.com <mailto:nbalacha at redhat.com>> ha scritto:
>>>>>
>>>>> Hi Mauro,
>>>>>
>>>>>
>>>>> The files on s04 and s05 can be deleted safely as long as those bricks have been removed from the volume and their brick processes are not running.
>>>>>
>>>>>
>>>>> .glusterfs/indices/xattrop/xattrop-* are links to files that need to be healed.
>>>>> .glusterfs/quarantine/stub-00000000-0000-0000-0000-000000000008 links to files that bitrot (if enabled)says are corrupted. (none in this case)
>>>>>
>>>>>
>>>>> I will get back to you on s06. Can you please provide the output of gluster volume info again?
>>>>>
>>>>> Regards,
>>>>> Nithya
>>>>>
>>>>>
>>>>>
>>>>> On 4 October 2018 at 13:47, Mauro Tridici <mauro.tridici at cmcc.it <mailto:mauro.tridici at cmcc.it>> wrote:
>>>>>
>>>>> Dear Ashish, Dear Nithya,
>>>>>
>>>>> I’m writing this message only to summarize and simplify the information about the "not migrated” files left on removed bricks on server s04, s05 and s06.
>>>>> In attachment, you can find 3 files (1 file for each server) containing the “not migrated” files lists and related brick number.
>>>>>
>>>>> In particular:
>>>>> s04 and s05 bricks contain only not migrated files in hidden directories “/gluster/mnt#/brick/.glusterfs" (I could delete them, doesn’t it?)
>>>>> s06 bricks contain
>>>>> not migrated files in hidden directories “/gluster/mnt#/brick/.glusterfs”;
>>>>> not migrated files with size equal to 0;
>>>>> not migrated files with size greater than 0.
>>>>>
>>>>> I think it was necessary to collect and summarize information to simplify your analysis.
>>>>> Thank you very much,
>>>>> Mauro
>>>>>
>>>>>
>>
>
>
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