[Gluster-users] Solving healing and split-brain problems

[Alan Orth]

Hi, I've got a similar issue on CentOS 6.4 + GlusterFS 3.4.0.

Yesterday I shut down one node in a replicated volume for some hardware
maintenance, and after bringing it up a few minutes later the healing
started automatically.  The healing has been going for 18 hours and
seems to be in a loop or something.

# gluster volume heal homes info
...
<gfid:cab1f7ca-da02-4b39-8a38-f0628a6cfe2c>
<gfid:05566262-3492-403c-983e-a0490009fccd>
<gfid:60fd0cc9-8827-4ca9-bc17-a9b6766b3e9b>
<gfid:66713aa4-18db-433a-a83f-6d9e807d7675>
<gfid:94c2b221-3c53-4c47-8735-f62cc89902ac>
<gfid:44d1e6de-8def-46a4-9015-87f0d26c26bc>
/segoli/BECA/GMCompletedRuns/TINA_BECA/RG1_2013-11-20_1_Tina_BECA2
/segoli/BECA/GMCompletedRuns/TINA_BECA/Robert1_Tina_2013-11-12_1_Tina_BECA2
/segoli/BECA/GMCompletedRuns/TINA_BECA/Olutayo_AFLP3_2013-11-12_1_Tina_BECA2
/segoli/BECA/GMCompletedRuns/TINA_BECA/Olutayo_AFLP4_2013-11-12_1_Tina_BECA2

My gut says that there is split brain, but:

# gluster volume heal homes info split-brain | grep entries
Number of entries: 0
Number of entries: 0

I'm not sure how to interpret this.

Thanks,

Alan

On 11/05/2013 04:55 AM, Vijay Bellur wrote:
> On 11/04/2013 11:20 PM, Hoggins! wrote:
>> Hello list,
>>
>> I have a replicated (two nodes) volume called "thedude1".
>>
>> When I issue the commands:
>>
>> ~$ gluster volume heal thedude1 full
>> ~$ gluster volume heal thedude1 info
>>
>>
>> Question is : how do I manage this issue ? I know how to handle it with
>> "regular" files, but not with raw gfids.
>> A quick howto would be the best.
>>
>
> Could this be of help:
>
> https://github.com/gluster/glusterfs/blob/master/doc/split-brain.md
>
> Thanks,
> Vijay
>
>
>
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-- 
Alan Orth
alan.orth at gmail.com
http://alaninkenya.org
http://mjanja.co.ke
"I have always wished for my computer to be as easy to use as my telephone; my wish has come true because I can no longer figure out how to use my telephone." -Bjarne Stroustrup, inventor of C++
GPG Public Key: 0xf92c4bd91084bb5de14e20be9470dd588dd1026c


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