[Gluster-users] Fwd: files not syncing up with glusterfs 3.1.2

Joe Landman landman at scalableinformatics.com
Mon Feb 21 17:47:58 UTC 2011

On 02/21/2011 12:45 PM, Steve Wilson wrote:
> On 02/21/2011 09:54 AM, paul simpson wrote:
>> hi fabricio,
>> many thanks for your input. indeed i am using xfs - but that seems to be
>> mentioned in the gluster docs without any mention of problems. we
>> benchmarked xfs vs ext4 - and found that xfs to be much better at dealing
>> with the bulk of our data - hi-def frames ~3-10M each - and large
>> geometry/particle/volume files. 10M-200M. so, i'm keen to hear from
>> anyone
>> abotu xfs's suitability for gluster storage...
>> as for file size; my understanding is that a distributed file system
>> performance only really kicks in when your dealing with large>1M files.
>> however, is dealing with small files meant to be unreliable with
>> locking/access errors?
> We had trouble with reliability for small, actively-accessed files on a
> distribute-replicate volume in both GlusterFS 3.11 and 3.12. It seems
> that the replicated servers would eventually get out of sync with each
> other on these kinds of files. For a while, we dropped replication and
> only ran the volume as distributed. This has worked reliably for the
> past week or so without any errors that we were seeing before: no such
> file, invalid argument, etc.


   As a sanity check, do test your date stamps across the servers.  We 
found *significant* issues when they drifted.

Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics Inc.
email: landman at scalableinformatics.com
web  : http://scalableinformatics.com
phone: +1 734 786 8423 x121
fax  : +1 866 888 3112
cell : +1 734 612 4615

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