[Gluster-users] Split brain that is not split brain

Pranith Kumar Karampuri pkarampu at redhat.com
Tue Sep 9 06:19:41 UTC 2014


On 09/09/2014 11:35 AM, Ilya Ivanov wrote:
> Ahh, thank you, now I get it. I deleted it on one node and it 
> replicated to another one. Now I get the following output:
>
> [root at gluster1 var]# gluster volume heal gv01 info
> Brick gluster1:/home/gluster/gv01/
> <gfid:d3def9e1-c6d0-4b7d-a322-b5019305182e>
> Number of entries: 1
>
> Brick gluster2:/home/gluster/gv01/
> Number of entries: 0
>
> Is it normal? Why the number of entries isn't reset to 0?
If you access the file using ls/stat etc, it will be fixed. But before 
that could you please post the output of 'getfattr -d -m. -e hex 
file/path/in/backend/brick' and 'getfattr -d -m. -e hex 
parent/dir/to/file/path/in/backend/brick'

Pranith
>
>
> And why wouldn't the file show up in split-brain before, anyway?
Gfid split-brains are not shown in heal-info-split-brain yet.

Pranith
>
>
> On Tue, Sep 9, 2014 at 7:46 AM, Pranith Kumar Karampuri 
> <pkarampu at redhat.com <mailto:pkarampu at redhat.com>> wrote:
>
>
>     On 09/09/2014 01:54 AM, Ilya Ivanov wrote:
>>     Hello.
>>
>>     I've Gluster 3.5.2 on Centos 6. A primitive replicated volume, as
>>     describe here
>>     <https://www.digitalocean.com/community/tutorials/how-to-create-a-redundant-storage-pool-using-glusterfs-on-ubuntu-servers>.
>>     I tried to simulate split-brain by temporarily disconnecting the
>>     nodes and creating a file with the same name and different
>>     contents. That worked.
>>
>>     The question is, how do I fix it now? All the tutorials suggest
>>     deleting the file from one of the nodes. I can't do that, it
>>     reports "Input/output error". The file won't even show up in
>>     "gluster volume heal gv00 info split-brain". That shows 0 entries.
>     The deletion needs to happen on one of the bricks, not from the
>     mount point.
>
>     Pranith
>>     I can see the file in "gluster volume heal gv00 info
>>     heal-failed", though.
>>
>>
>>     -- 
>>     Ilya.
>>
>>
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>
>
>
>
> -- 
> Ilya.

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