[Gluster-users] How to clear split brain info

Davy Croonen
Mon, 21 Sep 2015 10:18:34 -0000

Hmmm, strange, I went through all my bricks with every time the same result:

-bash: cd:
/mnt/public/brick1/.glusterfs/31/38/3138d605-25ec-4aa9-9069-5db2e4202db4: No
such file or directory

The directory /mnt/public/brick1/.glusterfs/31/38 does exist, and indeed there?s
a symlink in there but not one with the referenced gfid.

Any further suggestions? If I can get rid of the message it?s ok.

Thanks in advance.

Kind regards
Davy

> On 21 Sep 2015, at 11:59, Ravishankar N <ravishankar at redhat.com>
wrote:
>
>
>
> On 09/21/2015 03:09 PM, Davy Croonen wrote:
>> Ravi
>>
>> Thanks for your quick reply.
>>
>> I didn?t solve the split-brain on the file because I don?t know to
which directory this gfid is referencing (due to the implementation of our
application we have multiple directories containing the same files).
>
> <gfid:3138d605-25ec-4aa9-9069-5db2e4202db4>/Doc1_LOUJA.htm - Is in
split-brain.
>
> Directories are symlinked inside the .glusterfs folder on the bricks. You
can `cd
/mnt/public/brick1/.glusterfs/31/38/3138d605-25ec-4aa9-9069-5db2e4202db4` and
get to the file 'Doc1_LOUJA.htm' and then resolve the split-brain.
>
> HTH,
> Ravi
>>
>> Running the command ?getfattr -m . -d -e hex <directory>? against
every directory which could be the one didn?t show up the mentioned gfid. But
there was one result that didn?t fit the picture, see results below:
>>
>> root at gfs01a-dcg:/mnt/public/brick1/provil/Timetable# getfattr -m .
-d -e hex h9cnBmEx6j26sgidVKLaZhAqh
>> # file: h9cnBmEx6j26sgidVKLaZhAqh
>> trusted.afr.dirty=0x000000000000000000000000
>> trusted.afr.public-client-0=0x000000000000000000000000
>> trusted.afr.public-client-1=0x000000000000000000000000
>> trusted.gfid=0xb560c2463f5b476fa95d318f6bb91356
>> trusted.glusterfs.dht=0x00000001000000007ffe51f8ffffffff
>>
>> root at gfs01a-dcg:/mnt/public/brick1/provil/Timetable# getfattr -m .
-d -e hex h9cnBmEx6j26sgidVKLaZhAqh1442579382189160
>> # file: h9cnBmEx6j26sgidVKLaZhAqh1442579382189160
>> trusted.afr.dirty=0x000000000000000000000000
>> trusted.afr.public-client-0=0x000000000000000000000000
>> trusted.afr.public-client-1=0x000000000000000000000000
>> trusted.gfid=0x0367b477d5ea4b62b4da174b33622457
>>
>> On the other hand there is also the possibility that the directory
doesn?t even exist anymore because every night there are running some cleanup
scripts.
>>
>> By the way we are running gluster version 3.6.4.
>>
>> Davy
>>
>>> On 21 Sep 2015, at 11:16, Ravishankar N <ravishankar at
redhat.com> wrote:
>>>
>>>
>>>
>>> On 09/21/2015 02:32 PM, Davy Croonen wrote:
>>>> Hi all
>>>>
>>>> For, at the moment a unknown reason, the command "gluster
volume heal public info? shows a lot of the following entries:
>>>>
>>>>
<gfid:3138d605-25ec-4aa9-9069-5db2e4202db4>/Doc1_LOUJA.htm - Is in
split-brain.
>>>>
>>>> The part after the / differs but the gfid is always the same, I
suppose this gfid is referring to a directory.
>>> Correct, it is the parent directory of the file in question.
>>>>  Now considering the data this isn?t an issue the files can be
or are already deleted, but is there a way to clear these split-brain entries?
>>> Did you actually resolve the split-brain on the file ? If you do
that, then the entry must disappear from the output of the heal info command.
>>>> The command for restarting the self heal daemon ?gluster v
start public force?, didn?t solve the problem. Any other suggestions?
>>> What version of gluster are you running?
>>>
>>> -Ravi
>>>> Thanks in advance.
>>>>
>>>>
>>>> Kind regards
>>>> Davy
>>>> _______________________________________________
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>>>> Gluster-users at gluster.org
>>>> http://www.gluster.org/mailman/listinfo/gluster-users
>