[Gluster-users] Inconsistent md5sum of replicated file

[Pranith Kumar K]

hi Anthony,
     Parent directory is directory that contains the file.

Pranith

On 09/07/2011 08:18 PM, Anthony Delviscio wrote:
>
> Pranith, by parent directory, do you mean the directory that contains 
> the file or the top level directory of the brick?
>
> My gluster volume info:
>
> http://pastie.org/2493045
>
> The hostnames used in the gluster volume info are DNS hostnames that 
> resolve to 10GB interfaces on the Gluster nodes.
>
> The hostname used in the mount options is a RR DNS hostname that 
> resolves to all eight Gluster nodes.
>
> Stat/md5sum/getfattr data of the identical files with different md5sums.
>
> http://pastie.org/2497461
>
> Thank you
>
>
>
> On Wed, Sep 7, 2011 at 4:43 AM, Pranith Kumar K <pranithk at gluster.com 
> <mailto:pranithk at gluster.com>> wrote:
>
>     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.
>
>     Pranith.
>
>
>     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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>
>

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