Hi,
In addition of all split brains reported, is it normal to notice thousands and
thousands (several tens nay hundreds of thousands) broken symlinks browsing the
.glusterfs directory on each brick?
For the moment, i just synchronized one remote directory (around 30TB and a few
million files) into my new volume. No other operations on files on this volume
has yet been done.
How can I fix it? Can I delete these dead-symlinks? How can I fix all my
split-brains?
Here is an example of a ls:
[root@cl-storage3 ~]# cd /export/brick_home/brick1/data/.glusterfs/7b/d2/
[root@cl-storage3 d2]# ll
total 8,7M
13706 drwx------ 2 root root 8,0K 26 juil. 17:22 .
2147483784 drwx------ 258 root root 8,0K 20 juil. 23:07 ..
2148444137 -rwxrwxrwx 2 baaden baaden_team 173K 22 mai 2008
7bd200dd-1774-4395-9065-605ae30ec18b
1559384 -rw-rw-r-- 2 tarus amyloid_team 4,3K 19 juin 2013
7bd2155c-7a05-4edc-ae77-35ed7e16afbc
287295 lrwxrwxrwx 1 root root 58 20 juil. 23:38
7bd2370a-100b-411e-89a4-d184da9f0f88 ->
../../a7/59/a759de6f-cdf5-43dd-809a-baf81d103bf7/prop-base
2149090201 -rw-rw-r-- 2 tarus amyloid_team 76K 8 mars 2014
7bd2497f-d24b-4b19-a1c5-80a4956e56a1
2148561174 -rw-r--r-- 2 tran derreumaux_team 575 14 févr. 07:54
7bd25db0-67f5-43e5-a56a-52cf8c4c60dd
1303943 -rw-r--r-- 2 tran derreumaux_team 576 10 févr. 06:06
7bd25e97-18be-4faf-b122-5868582b4fd8
1308607 -rw-r--r-- 2 tran derreumaux_team 414K 16 juin 11:05
7bd2618f-950a-4365-a753-723597ef29f5
45745 -rw-r--r-- 2 letessier admin_team 585 5 janv. 2012
7bd265c7-e204-4ee8-8717-e4a0c393fb0f
2148144918 -rw-rw-r-- 2 tarus amyloid_team 107K 28 févr. 2014
7bd26c5b-d48a-481a-9ca6-2dc27768b5ad
13705 -rw-rw-r-- 2 tarus amyloid_team 25K 4 juin 2014
7bd27e4c-46ba-4f21-a766-389bfa52fd78
1633627 -rw-rw-r-- 2 tarus amyloid_team 75K 12 mars 2014
7bd28631-90af-4c16-8ff0-c3d46d5026c6
1329165 -rw-r--r-- 2 tran derreumaux_team 175 15 juin 23:40
7bd2957e-a239-4110-b3d8-b4926c7f060b
797803 lrwxrwxrwx 2 baaden baaden_team 26 2 avril 2007
7bd29933-1c80-4c6b-ae48-e64e4da874cb -> ../divided/a7/2a7o.pdb1.gz
1532463 -rw-rw-rw- 2 baaden baaden_team 1,8M 2 nov. 2009
7bd29d70-aeb4-4eca-ac55-fae2d46ba911
1411112 -rw-r--r-- 2 sterpone sterpone_team 3,1K 2 mai 2012
7bd2a5eb-62a4-47fc-b149-31e10bd3c33d
2148865896 -rw-r--r-- 2 tran derreumaux_team 2,1M 15 juin 23:46
7bd2ae9c-18ca-471f-a54a-6e4aec5aea89
2148762578 -rw-rw-r-- 2 tarus amyloid_team 154K 11 mars 2014
7bd2b7d7-7745-4842-b7b4-400791c1d149
149216 -rw-r--r-- 2 vamparys sacquin_team 241K 17 mai 2013
7bd2ba98-6a42-40ea-87ea-acb607d73cb5
2148977923 -rwxr-xr-x 2 murail baaden_team 23K 18 juin 2012
7bd2cf57-19e7-451c-885d-fd02fd988d43
1176623 -rw-rw-r-- 2 tarus amyloid_team 227K 8 mars 2014
7bd2d92c-7ec8-4af8-9043-49d1908a99dc
1172122 lrwxrwxrwx 2 sterpone sterpone_team 61 17 avril 12:49
7bd2d96e-e925-45f0-a26a-56b95c084122 ->
../../../../../src/libs/ck-libs/ParFUM-Tops-Dev/ParFUM_TOPS.h
1385933 -rw-r--r-- 2 tran derreumaux_team 2,9M 16 juin 05:29
7bd2df54-17d2-4644-96b7-f8925a67ec1e
745899 lrwxrwxrwx 1 root root 58 22 juil. 09:50
7bd2df83-ce58-4a17-aca8-a32b71e953d4 ->
../../5c/39/5c39010f-fa77-49df-8df6-8d72cf74fd64/model_009
2149100186 -rw-rw-r-- 2 tarus amyloid_team 494K 17 mars 2014
7bd2e865-a2f4-4d90-ab29-dccebe2e3440
Best.
Geoffrey
------------------------------------------------------
Geoffrey Letessier
Responsable informatique & ingénieur système
UPR 9080 - CNRS - Laboratoire de Biochimie Théorique
Institut de Biologie Physico-Chimique
13, rue Pierre et Marie Curie - 75005 Paris
Tel: 01 58 41 50 93 - eMail: [email protected]
Le 27 juil. 2015 à 22:57, Geoffrey Letessier <[email protected]> a
écrit :
> Dears,
>
> For a couple of weeks (more than one month), our computing production is
> stopped due to several -but amazing- troubles with GlusterFS.
>
> After having noticed a big problem with incorrect quota size accounted for
> many many files, i decided under the guidance of Gluster team support to
> upgrade my storage cluster from version 3.5.3 to the latest (3.7.2-3) because
> these bugs are theoretically fixed in this branch. Now, since i’ve done this
> upgrade, it’s the amazing mess and i cannot restart the production.
> Indeed :
> 1 - RDMA protocol is not working and hang my system / shell commands;
> only TCP protocol (over Infiniband) is more or less operational - it’s not
> a blocking point but…
> 2 - read/write performance relatively low
> 3 - thousands split-brains are appeared.
>
> So, for the moment, i believe GlusterFS 3.7 is not actually production ready.
>
> Concerning the third point: after having destroy all my volumes (RAID
> re-init, new partition, GlusterFS volumes, etc.), recreate the main one, I
> tried to back-transfert my data from archive/backup server info this new
> volume and I note a lot of errors in my mount log file, as your can read in
> this extract:
> [2015-07-26 22:35:16.962815] I
> [afr-self-heal-entry.c:565:afr_selfheal_entry_do] 0-vol_home-replicate-0:
> performing entry selfheal on 865083fa-984e-44bd-aacf-b8195789d9e0
> [2015-07-26 22:35:16.965896] E
> [afr-self-heal-entry.c:249:afr_selfheal_detect_gfid_and_type_mismatch]
> 0-vol_home-replicate-0: Gfid mismatch detected for
> <865083fa-984e-44bd-aacf-b8195789d9e0/job.pbs>,
> e944d444-66c5-40a4-9603-7c190ad86013 on vol_home-client-1 and
> 820f9bcc-a0f6-40e0-bcec-28a76b4195ea on vol_home-client-0. Skipping
> conservative merge on the file.
> [2015-07-26 22:35:16.975206] I
> [afr-self-heal-entry.c:565:afr_selfheal_entry_do] 0-vol_home-replicate-0:
> performing entry selfheal on 29382d8d-c507-4d2e-b74d-dbdcb791ca65
> [2015-07-26 22:35:28.719935] E
> [afr-self-heal-entry.c:249:afr_selfheal_detect_gfid_and_type_mismatch]
> 0-vol_home-replicate-0: Gfid mismatch detected for
> <29382d8d-c507-4d2e-b74d-dbdcb791ca65/res_1BVK_r_u_1IBR_l_u_Cond.1IBR_l_u.1BVK_r_u.UB.global.dat.txt>,
> 951c5ffb-ca38-4630-93f3-8e4119ab0bd8 on vol_home-client-1 and
> 5ae663ca-e896-4b92-8ec5-5b15422ab861 on vol_home-client-0. Skipping
> conservative merge on the file.
> [2015-07-26 22:35:29.764891] I
> [afr-self-heal-entry.c:565:afr_selfheal_entry_do] 0-vol_home-replicate-0:
> performing entry selfheal on 865083fa-984e-44bd-aacf-b8195789d9e0
> [2015-07-26 22:35:29.768339] E
> [afr-self-heal-entry.c:249:afr_selfheal_detect_gfid_and_type_mismatch]
> 0-vol_home-replicate-0: Gfid mismatch detected for
> <865083fa-984e-44bd-aacf-b8195789d9e0/job.pbs>,
> e944d444-66c5-40a4-9603-7c190ad86013 on vol_home-client-1 and
> 820f9bcc-a0f6-40e0-bcec-28a76b4195ea on vol_home-client-0. Skipping
> conservative merge on the file.
> [2015-07-26 22:35:29.775037] I
> [afr-self-heal-entry.c:565:afr_selfheal_entry_do] 0-vol_home-replicate-0:
> performing entry selfheal on 29382d8d-c507-4d2e-b74d-dbdcb791ca65
> [2015-07-26 22:35:29.776857] E
> [afr-self-heal-entry.c:249:afr_selfheal_detect_gfid_and_type_mismatch]
> 0-vol_home-replicate-0: Gfid mismatch detected for
> <29382d8d-c507-4d2e-b74d-dbdcb791ca65/res_1BVK_r_u_1IBR_l_u_Cond.1IBR_l_u.1BVK_r_u.UB.global.dat.txt>,
> 951c5ffb-ca38-4630-93f3-8e4119ab0bd8 on vol_home-client-1 and
> 5ae663ca-e896-4b92-8ec5-5b15422ab861 on vol_home-client-0. Skipping
> conservative merge on the file.
> [2015-07-26 22:35:29.800535] W [MSGID: 108008]
> [afr-self-heal-name.c:353:afr_selfheal_name_gfid_mismatch_check]
> 0-vol_home-replicate-0: GFID mismatch for
> <gfid:29382d8d-c507-4d2e-b74d-dbdcb791ca65>/res_1BVK_r_u_1IBR_l_u_Cond.1IBR_l_u.1BVK_r_u.UB.global.dat.txt
> 951c5ffb-ca38-4630-93f3-8e4119ab0bd8 on vol_home-client-1 and
> 5ae663ca-e896-4b92-8ec5-5b15422ab861 on vol_home-client-0
>
> And when I try to browse some folders (still in mount log file):
> [2015-07-27 09:00:19.005763] I
> [afr-self-heal-entry.c:565:afr_selfheal_entry_do] 0-vol_home-replicate-0:
> performing entry selfheal on 2ac27442-8be0-4985-b48f-3328a86a6686
> [2015-07-27 09:00:22.322316] E
> [afr-self-heal-entry.c:249:afr_selfheal_detect_gfid_and_type_mismatch]
> 0-vol_home-replicate-0: Gfid mismatch detected for
> <2ac27442-8be0-4985-b48f-3328a86a6686/md0012588.gro>,
> 9c635868-054b-4a13-b974-0ba562991586 on vol_home-client-1 and
> 1943175c-b336-4b33-aa1c-74a1c51f17b9 on vol_home-client-0. Skipping
> conservative merge on the file.
> [2015-07-27 09:00:23.008771] I
> [afr-self-heal-entry.c:565:afr_selfheal_entry_do] 0-vol_home-replicate-0:
> performing entry selfheal on 2ac27442-8be0-4985-b48f-3328a86a6686
> [2015-07-27 08:59:50.359187] W [MSGID: 108008]
> [afr-self-heal-name.c:353:afr_selfheal_name_gfid_mismatch_check]
> 0-vol_home-replicate-0: GFID mismatch for
> <gfid:2ac27442-8be0-4985-b48f-3328a86a6686>/md0012588.gro
> 9c635868-054b-4a13-b974-0ba562991586 on vol_home-client-1 and
> 1943175c-b336-4b33-aa1c-74a1c51f17b9 on vol_home-client-0
> [2015-07-27 09:00:02.500419] W [MSGID: 108008]
> [afr-self-heal-name.c:353:afr_selfheal_name_gfid_mismatch_check]
> 0-vol_home-replicate-0: GFID mismatch for
> <gfid:2ac27442-8be0-4985-b48f-3328a86a6686>/md0012590.gro
> b22aec09-2be3-41ea-a976-7b8d0e6f61f0 on vol_home-client-1 and
> ec100f9e-ec48-4b29-b75e-a50ec6245de6 on vol_home-client-0
> [2015-07-27 09:00:02.506925] W [MSGID: 108008]
> [afr-self-heal-name.c:353:afr_selfheal_name_gfid_mismatch_check]
> 0-vol_home-replicate-0: GFID mismatch for
> <gfid:2ac27442-8be0-4985-b48f-3328a86a6686>/md0009059.gro
> 0485c093-11ca-4829-b705-e259668ebd8c on vol_home-client-1 and
> e83a492b-7f8c-4b32-a76e-343f984142fe on vol_home-client-0
> [2015-07-27 09:00:23.001121] W [MSGID: 108008]
> [afr-read-txn.c:241:afr_read_txn] 0-vol_home-replicate-0: Unreadable
> subvolume -1 found with event generation 2. (Possible split-brain)
> [2015-07-27 09:00:26.231262] E
> [afr-self-heal-entry.c:249:afr_selfheal_detect_gfid_and_type_mismatch]
> 0-vol_home-replicate-0: Gfid mismatch detected for
> <2ac27442-8be0-4985-b48f-3328a86a6686/md0012588.gro>,
> 9c635868-054b-4a13-b974-0ba562991586 on vol_home-client-1 and
> 1943175c-b336-4b33-aa1c-74a1c51f17b9 on vol_home-client-0. Skipping
> conservative merge on the file.
>
> And, above all, browsing folder I get a lot of input/ouput errors.
>
> Currently I have 6.2M inodes and roughly 30TB in my "new" volume.
>
> For the moment, Quota is disable to increase the IO performance during the
> back-transfert…
>
> Your can also find in attachments:
> - an "ls" result
> - a split-brain research result
> - the volume information and status
> - a complete volume heal info
>
> Hoping this can help your to help me to fix all my problems and reopen the
> computing production.
>
> Thanks in advance,
> Geoffrey
>
> PS: « Erreur d’Entrée/Sortie » = « Input / Output Error »
> ------------------------------------------------------
> Geoffrey Letessier
> Responsable informatique & ingénieur système
> UPR 9080 - CNRS - Laboratoire de Biochimie Théorique
> Institut de Biologie Physico-Chimique
> 13, rue Pierre et Marie Curie - 75005 Paris
> Tel: 01 58 41 50 93 - eMail: [email protected]
>
> <ls_example.txt>
> <split_brain__20150725.txt>
> <vol_home_healinfo.txt>
> <vol_home_info.txt>
> <vol_home_status.txt>
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