[Gluster-users] glusterfs3.4.2-1 split-brain question

[Ravishankar N]

On 09/25/2015 07:48 AM, Khoi Mai wrote:
> I have a 4 node distributed-replicated gluster farm.
>
> Volume Name: devstatic
> Type: Distributed-Replicate
> Volume ID: 75832afb-f20e-4017-8d74-8550a92233fd
> Status: Started
> Number of Bricks: 2 x 2 = 4
> Transport-type: tcp
> Bricks:
> Brick1: omhq1b4e:/static/content
> Brick2: omdx1b50:/static/content
> Brick3: omhq1b4f:/static/content
> Brick4: omdx1b51:/static/content
> Options Reconfigured:
> features.quota-deem-statfs: on
> server.allow-insecure: on
> network.ping-timeout: 10
> performance.lazy-open: off
> performance.write-behind: on
> features.quota: on
> geo-replication.indexing: off
> server.statedump-path: /tmp/
> diagnostics.brick-log-level: CRITICAL
>
>
> When I query heal split-brain info I get the following.
>
> [root at omhq1b4e ~]# gluster volume heal devstatic info split-brain
> Gathering list of split brain entries on volume devstatic has been 
> successful
>
> Brick omhq1b4e:/static/content
> Number of entries: 0
>
> Brick omdx1b50:/static/content
> Number of entries: 0
>
> Brick omhq1b4f:/static/content
> Number of entries: 43
> at          path on brick
> -----------------------------------
> 2015-09-24 18:50:20 /
> 2015-09-24 18:50:20 /
> 2015-09-24 18:52:01 /
> 2015-09-24 19:10:22 /
>
> Brick omdx1b51:/static/content
> Number of entries: 42
> at          path on brick
> -----------------------------------
> 2015-09-24 18:51:58 /
> 2015-09-24 18:51:59 /
> 2015-09-24 19:01:59 /
> 2015-09-24 19:11:59 /
>
>
> Being / on the same replicate, how would I safely resolve this issue? 
>  Is it really going to require me to delete the root of each node and 
> heal?  I hope not, the entire volume is about 1TB.
>
No, it is likely that the root is only in metadata split-brain. What 
does the getfattr output of '/' show on the bricks? 
https://github.com/gluster/glusterdocs/blob/master/Troubleshooting/split-brain.md 
should tell you how to resolve split-brains.
> Thank you,
>
>
>
>
>
> Khoi Mai
> Union Pacific Railroad
> Distributed Engineering & Architecture
> Senior Project Engineer
>
>
>
>
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