Hi, Could you provide the xattrs in hex format?
You can execute `getfattr -d -m . -e hex <path-to-the-directory/file-on-the-brick(s)>` -Krutika ----- Original Message ----- > From: "Alessandro Ipe" <[email protected]> > To: "Krutika Dhananjay" <[email protected]> > Cc: [email protected] > Sent: Thursday, March 12, 2015 5:15:08 PM > Subject: Re: [Gluster-users] Input/output error when trying to access a file > on client > Hi, > Actually, my gluster volume is distribute-replicate so I should provide the > attributes on all the bricks. Here they are: > 1. # file: data/glusterfs/md1/brick1/root > trusted.afr.md1-client-0=0sAAAAAAAAAAAAAAAA > trusted.afr.md1-client-1=0sAAAAAAAAAAAAAAAA > trusted.gfid=0s3DmMvSq0QOyf7T1ZN2VPSw== > trusted.glusterfs.dht=0sAAAAAQAAAACqqqqq/////w== > 2. # file: data/glusterfs/md1/brick1/root > trusted.afr.md1-client-0=0sAAAAAAAAAAAAAAAA > trusted.afr.md1-client-1=0sAAAAAAAAAAAAAAAA > trusted.gfid=0s3DmMvSq0QOyf7T1ZN2VPSw== > trusted.glusterfs.dht=0sAAAAAQAAAACqqqqq/////w== > 3. # file: data/glusterfs/md1/brick1/root > trusted.afr.md1-client-2=0sAAAAAAAAAAAAAAAA > trusted.afr.md1-client-3=0sAAAAAAAAAAEAAAAA > trusted.gfid=0s3DmMvSq0QOyf7T1ZN2VPSw== > trusted.glusterfs.dht=0sAAAAAQAAAAAAAAAAVVVVVA== > 4. # file: data/glusterfs/md1/brick1/root > trusted.afr.md1-client-2=0sAAAAAAAAAAEAAAAA > trusted.afr.md1-client-3=0sAAAAAAAAAAAAAAAA > trusted.gfid=0s3DmMvSq0QOyf7T1ZN2VPSw== > trusted.glusterfs.dht=0sAAAAAQAAAAAAAAAAVVVVVA== > 5. # file: data/glusterfs/md1/brick1/root > trusted.afr.md1-client-4=0sAAAAAAAAAAAAAAAA > trusted.afr.md1-client-5=0sAAAAAAAAAAEAAAAA > trusted.gfid=0s3DmMvSq0QOyf7T1ZN2VPSw== > trusted.glusterfs.dht=0sAAAAAQAAAABVVVVVqqqqqQ== > 6. # file: data/glusterfs/md1/brick1/root > trusted.afr.md1-client-4=0sAAAAAAAAAAEAAAAA > trusted.afr.md1-client-5=0sAAAAAAAAAAAAAAAA > trusted.gfid=0s3DmMvSq0QOyf7T1ZN2VPSw== > trusted.glusterfs.dht=0sAAAAAQAAAABVVVVVqqqqqQ== > so it seems in fact that there are discrepancies between 3-4 and 5-6 > (replicate pairs). > A. > On Thursday 12 March 2015 11:33:00 Alessandro Ipe wrote: > Hi, > "gluster volume heal md1 info split-brain" returns approximatively 2000 files > (already divided by 2 > due to replicate volume). So manually repairing each split-brain is > unfeasable. Before scripting some > procedure, I need to be sure that I will not harm further the gluster system. > Moreover, I noticed that the messages printed in the logs are all about > directories, > e.g. > [2015-03-12 10:06:53.423856] E > [afr-self-heal-common.c:233:afr_sh_print_split_brain_log] 0-md1-replicate-1: > Unable to self-heal contents of '/root' (possible split-brain). Please > delete the file from all but the preferred subvolume.- Pending matrix: [ [ 0 > 1 ] [ 1 0 ] ] > [2015-03-12 10:06:53.424005] E > [afr-self-heal-common.c:233:afr_sh_print_split_brain_log] 0-md1-replicate-2: > Unable to self-heal contents of '/root' (possible split-brain). Please > delete the file from all but the preferred subvolume.- Pending matrix: [ [ 0 > 1 ] [ 1 0 ] ] > [2015-03-12 10:06:53.424110] E > [afr-self-heal-common.c:2868:afr_log_self_heal_completion_status] > 0-md1-replicate-1: metadata self heal failed, on /root > [2015-03-12 10:06:53.424290] E > [afr-self-heal-common.c:2868:afr_log_self_heal_completion_status] > 0-md1-replicate-2: metadata self heal failed, on /root > Getting the attributes of that directory on each brick gives me for the first > # file: data/glusterfs/md1/brick1/root > trusted.afr.md1-client-0=0sAAAAAAAAAAAAAAAA > trusted.afr.md1-client-1=0sAAAAAAAAAAAAAAAA > trusted.gfid=0s3DmMvSq0QOyf7T1ZN2VPSw== > trusted.glusterfs.dht=0sAAAAAQAAAACqqqqq/////w== > and for the second > # file: data/glusterfs/md1/brick1/root > trusted.afr.md1-client-0=0sAAAAAAAAAAAAAAAA > trusted.afr.md1-client-1=0sAAAAAAAAAAAAAAAA > trusted.gfid=0s3DmMvSq0QOyf7T1ZN2VPSw== > trusted.glusterfs.dht=0sAAAAAQAAAACqqqqq/////w== > so it seems that there are both rigorously identical. However, according to > your split -brain tutorial, > none of them has 0x000000000000000000000000. What 0sAAAAAAAAAAAAAAAA means > in fact ? > Should I change both attributes on each directory to > 0x000000000000000000000000 ? > Many thanks, > A. > On Wednesday 11 March 2015 08:02:56 Krutika Dhananjay wrote: > 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" <[email protected]> > To: [email protected] > Sent: Wednesday, March 11, 2015 4:54:09 PM > Subject: Re: [Gluster-users] 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 > _______________________________________________ > Gluster-users mailing list > [email protected] > http://www.gluster.org/mailman/listinfo/gluster-users > -- > Dr. Ir. Alessandro Ipe > Department of Observations Tel. +32 2 373 06 31 > Remote Sensing from Space Fax. +32 2 374 67 88 > Royal Meteorological Institute > Avenue Circulaire 3 Email: > B-1180 Brussels Belgium [email protected] > Web: http://gerb.oma.be
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