Gluster users - Sep 2015 - How to clear split brain info

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
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> http://www.gluster.org/mailman/listinfo/gluster-users

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).

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
>> _______________________________________________
>> Gluster-users mailing list
>> Gluster-users at gluster.org
>> http://www.gluster.org/mailman/listinfo/gluster-users
>