Re: Input/output error when trying to access a file on client

[Krutika Dhananjay <kdhananj@xxxxxxxxxx>]

Hi,

Have you gone through https://github.com/gluster/glusterfs/blob/master/doc/debugging/split-brain.md ?

If not, could you go through that once and try the steps given there? Do let us know if something is not clear in the doc.

-Krutika

---

From: "Alessandro Ipe" <Alessandro.Ipe@xxxxxxxx>
To: gluster-users@xxxxxxxxxxx
Sent: Wednesday, March 11, 2015 4:54:09 PM
Subject: Re: Input/output error when trying to access a file        on client

Well, it is even worse. Now when doing  a "ls -R" on the volume results in a lot of

[2015-03-11 11:18:31.957505] E [afr-self-heal-common.c:233:afr_sh_print_split_brain_log] 0-md1-replicate-2: Unable to self-heal contents of '/library' (possible split-brain). Please delete the file from all but the preferred subvolume.- Pending matrix:  [ [ 0 2 ] [ 1 0 ] ]
[2015-03-11 11:18:31.957692] E [afr-self-heal-common.c:2868:afr_log_self_heal_completion_status] 0-md1-replicate-2:  metadata self heal  failed,   on /library

I am desperate...

A.

On Wednesday 11 March 2015 12:05:33 you wrote:
> Hi,
>
>
> When trying to access a file on a gluster client (through fuse), I get an
> "Input/output error" message.
>
> Getting the attributes for the file gives me for the first brick
> # file: data/glusterfs/md1/brick1/kvm/hail/hail_home.qcow2
> trusted.afr.md1-client-2=0sAAAAAAAAAAAAAAAA
> trusted.afr.md1-client-3=0sAAABdAAAAAAAAAAA
> trusted.gfid=0sOCFPGCdrQ9uyq2yTTPCKqQ==
>
> while for the second (replicate) brick
> # file: data/glusterfs/md1/brick1/kvm/hail/hail_home.qcow2
> trusted.afr.md1-client-2=0sAAABJAAAAAAAAAAA
> trusted.afr.md1-client-3=0sAAAAAAAAAAAAAAAA
> trusted.gfid=0sOCFPGCdrQ9uyq2yTTPCKqQ==
>
> It seems that I have a split-brain. How can I solve this issue by resetting
> the attributes, please ?
>
>
> Thanks,
>
>
> Alessandro.
>
> ==================
> gluster volume info md1
>
> Volume Name: md1
> Type: Distributed-Replicate
> Volume ID: 6da4b915-1def-4df4-a41c-2f3300ebf16b
> Status: Started
> Number of Bricks: 3 x 2 = 6
> Transport-type: tcp
> Bricks:
> Brick1: tsunami1:/data/glusterfs/md1/brick1
> Brick2: tsunami2:/data/glusterfs/md1/brick1
> Brick3: tsunami3:/data/glusterfs/md1/brick1
> Brick4: tsunami4:/data/glusterfs/md1/brick1
> Brick5: tsunami5:/data/glusterfs/md1/brick1
> Brick6: tsunami6:/data/glusterfs/md1/brick1
> Options Reconfigured:
> server.allow-insecure: on
> cluster.read-hash-mode: 2
> features.quota: off
> performance.write-behind: on
> performance.write-behind-window-size: 4MB
> performance.flush-behind: off
> performance.io-thread-count: 64
> performance.cache-size: 512MB
> nfs.disable: on
> cluster.lookup-unhashed: off

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