openstack team mailing list archive

[Frederik Van Hecke <frederik@xxxxxxxxx>]

Hi Kuo,

One option would be to keep the usage information (num files, num bytes,
etc) per container / account in an sqlite DB, just like it is done for
account and container info.

To avoid having to loop through all data at regular intervals (to update
the info), additional logic could be added to the api methods to update the
sqlite DB's when new files are added, files are deleted, etc. Such approach
will require more lines of code, but will be far less stressful on
performance.

(the brute-force approach to loop through it at regular intervals will be
hell on performance on large deployments..)


For data transfer billing based on download / upload amounts, a similar
approach could be used.

If no one else is looking into this, I would certainly be willing to help
to help get this started.


Kind regards,
Frederik Van Hecke

*T:*  +32487733713
*E:*  frederik@xxxxxxxxx
*W:* www.cluttr.be



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On Thu, Apr 12, 2012 at 17:45, Kuo Hugo <tonytkdk@xxxxxxxxx> wrote:

> Hi folks ,
>
> I'm thinking about the better approach to manage "an user" or "an account"
> space usage quota in swift.
> Is  there any related blueprint or sub-project even an idea around ?
> Any suggestion of benefits to be an external service or to be a
> middle-ware in swift-proxy ?
>
> I'm concerning about such feature will reduce the performance of entire
> Swift environment.
>
> Appreciate :>
>
>
>
> --
> +Hugo Kuo+
> tonytkdk@xxxxxxxxx
> + <tonytkdk@xxxxxxxxx>886 935004793
>
>
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