[Gluster-users] Inconsistent md5sum of replicated file

Pranith Kumar K pranithk at gluster.com
Wed Sep 7 08:43:56 UTC 2011

hi Anthony,
       Could you send the output of the getfattr -d -m . -e hex 
<filepath> on both the bricks and also the stat output on the both the 
backends. Give the outputs for its parent directory also.


On 09/07/2011 04:22 AM, Anthony Delviscio wrote:
> I was wondering if anyone would be able to shed some light on how a 
> file could end up with inconsistent md5sums on Gluster backend storage.
> Our configuration is running on Gluster v3.1.5 in a 
> distribute-replicate setup consisting of 8 bricks.
> Our OS is Red Hat 5.6 x86_64.Backend storage is an ext3 RAID 5.
> The 8 bricks are in RR DNS and are mounted for reading/writing via NFS 
> automounts.
> When comparing md5sums of the file from two different NFS clients, 
> they were different.
> The extended attributes of the files on backend storage are 
> identical.The file size and permissions are identical.The stat data 
> (excluding inode on backend storage file system) is identical.
> However, running md5sum on the two files, results in two different 
> md5sums.
> Copying both files to another location/server and running the md5sum 
> also results in no change – they’re still different.
> Gluster logs do not show anything related to the filename in 
> question.Triggering a self-healing operation didn’t seem to do 
> anything and it may have to do with the fact that the extended 
> attributes are identical.
> If more information is required, let me know and I will try to 
> accommodate.
> Thank you
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