Hi,
Thanks for reply!
I’ve checked [1]. But the problem is that there is nothing shown in command “gluster volume heal <volume-name> info”. So these split-entry files could only be detected when app try to visit them.
I can find gfid mismatch for those in-split-brain entries from mount log, however, nothing show in shd log, the shd log does not know those split-brain entries. Because there is nothing in indices/xattrop directory.
The log is not available right now, when it reproduced, I will provide it to your, Thanks!
Best regards,
Cynthia （周琳）MBB SM HETRAN SW3 MATRIX
Storage
Mobile: +86 (0)18657188311
From: Karthik Subrahmanya [mailto:ksubrahm@xxxxxxxxxx]
Sent: Thursday, September 28, 2017 2:02 PM
To: Zhou, Cynthia (NSB - CN/Hangzhou) <cynthia.zhou@xxxxxxxxxxxxxxx>
Cc: Gluster-users@xxxxxxxxxxx; gluster-devel@xxxxxxxxxxx
Subject: Re: [Gluster-users] after hard reboot, split-brain happened, but nothing showed in gluster voluem heal info command !
Hi,
To resolve the gfid split-brain you can follow the steps at [1].
Since we don't have the pending markers set on the files, it is not showing in the heal info.
To debug this issue, need some more data from you. Could you provide these things?1. volume info
2. mount log
3. brick logs
4. shd log
May I also know which version of gluster you are running. From the info you have provided it looks like an old version.
If it is, then it would be great if you can upgarde to one of the latest supported release.
[1] http://docs.gluster.org/en/latest/Troubleshooting/split- brain/#fixing-directory-entry- split-brain
Thanks & Regards,
Karthik
On Wed, Sep 27, 2017 at 9:42 AM, Zhou, Cynthia (NSB - CN/Hangzhou) <cynthia.zhou@xxxxxxxxxxxxxxx> wrote:
HI gluster experts,
I meet a tough problem about “split-brain” issue. Sometimes, after hard reboot, we will find some files in split-brain, however its parent directory or anything could be shown in command “gluster volume heal <volume-name> info”, also, no entry in .glusterfs/indices/xattrop directory, can you help to shed some lights on this issue? Thanks!
Following is some info from our env,
Checking from sn-0 cliet, nothing is shown in-split-brain!
[root@sn-0:/mnt/bricks/
services/brick/netserv/ethip] # gluster v heal services info
Brick sn-0:/mnt/bricks/services/
brick/ Number of entries: 0
Brick sn-1:/mnt/bricks/services/
brick/ Number of entries: 0
[root@sn-0:/mnt/bricks/
services/brick/netserv/ethip] [root@sn-0:/mnt/bricks/
services/brick/netserv/ethip] # gluster v heal services info split-brain
Gathering list of split brain entries on volume services has been successful
Brick sn-0.local:/mnt/bricks/
services/brick Number of entries: 0
Brick sn-1.local:/mnt/bricks/
services/brick Number of entries: 0
[root@sn-0:/mnt/bricks/
services/brick/netserv/ethip] # ls -l /mnt/services/netserv/ethip/
ls: cannot access '/mnt/services/netserv/ethip/
sn-2': Input/output error ls: cannot access '/mnt/services/netserv/ethip/
mn-1': Input/output error total 3
-rw-r--r-- 1 root root 144 Sep 26 20:35 as-0
-rw-r--r-- 1 root root 144 Sep 26 20:35 as-1
-rw-r--r-- 1 root root 145 Sep 26 20:35 as-2
-rw-r--r-- 1 root root 237 Sep 26 20:36 mn-0
-????????? ? ? ? ? ? mn-1
-rw-r--r-- 1 root root 73 Sep 26 20:35 sn-0
-rw-r--r-- 1 root root 73 Sep 26 20:35 sn-1
-????????? ? ? ? ? ? sn-2
[root@sn-0:/mnt/bricks/
services/brick/netserv/ethip]
Checking from glusterfs server side, the gfid of mn-1 on sn-0 and sn-1 is different
[SN-0]
[root@sn-0:/mnt/bricks/
services/brick/.glusterfs/53/ a3] # getfattr -m . -d -e hex /mnt/bricks/services/brick/
netserv/ethip getfattr: Removing leading '/' from absolute path names
# file: mnt/bricks/services/brick/
netserv/ethip trusted.gfid=
0xee71d19ac0f84f60b11eb42a0836 44e4 trusted.glusterfs.dht=
0x000000010000000000000000ffff ffff
[root@sn-0:/mnt/bricks/
services/brick/netserv/ethip] # getfattr -m . -d -e hex mn-1
# file: mn-1
trusted.afr.dirty=
0x000000000000000000000000 trusted.afr.services-client-0=
0x000000000000000000000000 trusted.afr.services-client-1=
0x000000000000000000000000 trusted.gfid=0x53a33f437464475
486f31c4e44d83afd [root@sn-0:/mnt/bricks/
services/brick/netserv/ethip] # stat mn-1
File: mn-1
Size: 237 Blocks: 16 IO Block: 4096 regular file
Device: fd51h/64849d Inode: 2536 Links: 2
Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2017-09-26 20:30:25.679000000 +0300
Modify: 2017-09-26 20:30:24.604000000 +0300
Change: 2017-09-26 20:30:24.610000000 +0300
Birth: -
[root@sn-0:/mnt/bricks/
services/brick/.glusterfs/ indices/xattrop] # ls
xattrop-63f8bbcb-7fa6-4fc8-
b721-675a05de0ab3 [root@sn-0:/mnt/bricks/
services/brick/.glusterfs/ indices/xattrop]
[root@sn-0:/mnt/bricks/
services/brick/.glusterfs/53/ a3] # ls
53a33f43-7464-4754-86f3-
1c4e44d83afd [root@sn-0:/mnt/bricks/
services/brick/.glusterfs/53/ a3] # stat 53a33f43-7464-4754-86f3-
1c4e44d83afd File: 53a33f43-7464-4754-86f3-
1c4e44d83afd Size: 237 Blocks: 16 IO Block: 4096 regular file
Device: fd51h/64849d Inode: 2536 Links: 2
Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2017-09-26 20:30:25.679000000 +0300
Modify: 2017-09-26 20:30:24.604000000 +0300
Change: 2017-09-26 20:30:24.610000000 +0300
Birth: -
#
[SN-1]
[root@sn-1:/mnt/bricks/
services/brick/.glusterfs/f7/ f1] # getfattr -m . -d -e hex /mnt/bricks/services/brick/
netserv/ethip getfattr: Removing leading '/' from absolute path names
# file: mnt/bricks/services/brick/
netserv/ethip trusted.gfid=
0xee71d19ac0f84f60b11eb42a0836 44e4 trusted.glusterfs.dht=
0x000000010000000000000000ffff ffff
[root@sn-1:/mnt/bricks/
services/brick/.glusterfs/f7/ f1] #
[root@sn-1:/mnt/bricks/
services/brick/netserv/ethip] # getfattr -m . -d -e hex mn-1
# file: mn-1
trusted.afr.dirty=
0x000000000000000000000000 trusted.afr.services-client-0=
0x000000000000000000000000 trusted.afr.services-client-1=
0x000000000000000000000000 trusted.gfid=0xf7f10f980acc404
1a015e48018571d4a
[root@sn-1:/mnt/bricks/
services/brick/netserv/ethip] # stat mn-1
File: mn-1
Size: 237 Blocks: 16 IO Block: 4096 regular file
Device: fd41h/64833d Inode: 2608 Links: 2
Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2017-09-26 20:31:48.231000000 +0300
Modify: 2017-09-26 20:31:46.872000000 +0300
Change: 2017-09-26 20:31:46.875000000 +0300
Birth: -
[root@sn-1:/mnt/bricks/
services/brick/.glusterfs/ indices/xattrop] # ls
xattrop-240713ea-eda3-4914-
a55d-7dd4aed724ed [root@sn-1:/mnt/bricks/
services/brick/.glusterfs/ indices/xattrop]
[root@sn-1:/mnt/bricks/
services/brick/.glusterfs/f7/ f1] # stat f7f10f98-0acc-4041-a015-
e48018571d4a File: f7f10f98-0acc-4041-a015-
e48018571d4a Size: 237 Blocks: 16 IO Block: 4096 regular file
Device: fd41h/64833d Inode: 2608 Links: 2
Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2017-09-26 20:31:48.231000000 +0300
Modify: 2017-09-26 20:31:46.872000000 +0300
Change: 2017-09-26 20:31:46.875000000 +0300
Birth: -
Best regards,
Cynthia （周琳）MBB SM HETRAN SW3 MATRIX
Storage
Mobile: +86 (0)18657188311
Best regards,
Cynthia （周琳）MBB SM HETRAN SW3 MATRIX
Storage
Mobile: +86 (0)18657188311
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