[Gluster-users] Concurrent writes management.

[Pranith Kumar Karampuri]

On 06/30/2014 07:49 PM, COCHE Sébastien wrote:
>
> Hello
>
> I have a question regarding concurrent write.
>
> How are manage those writes ? Is there a risk of data corruption ?
>
> Is there a lock mechanism, against corruption ? If yes, how it work ?
>
> I already had a look to forum and documents but I did not found a deep 
> dive explanation.
>
For plain distribute volumes there exists only one file in the volume 
with the data. All the operations on the file happen just like they 
happen on normal filesystem. For replicated/distributed replicated 
volumes there are internal locks taken by replication feature to avoid 
any in-consistencies.
Please check 
https://github.com/gluster/glusterfs/blob/master/doc/features/afr-v1.md 
to know more about it.

Pranith
>
> Thank for your feedback
>
> Sorry for my poor english  ;-)
>
> Sebastien
>
>
>
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