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

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http://joejulian.name/blog/glusterfs-split-brain-recovery-made-easy/

On March 11, 2015 4:24:09 AM PDT, Alessandro Ipe <Alessandro.Ipe@xxxxxxxx> wrote:
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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