Open Stack

I buy an exception here if the configuration defaults to off (no change).

Thanks!


On Mon, Sep 9, 2013 at 8:29 AM, Thierry Carrez <thierry at openstack.org>wrote:

> stuart.mclaren at hp.com wrote:
> > This change:
> >
> > https://review.openstack.org/#/c/32919/
> >
> > is the final piece of a puzzle that allows a (potentially significant)
> > performance improvement for image uploads (snapshots)/downloads when
> > using ssl.
>
> I guess that's why I like puzzles being targeted to the second milestone
> in the cycle... deferring those is painful.
>
> > Without this patch swift will be a bottleneck running at ~17 MB/s while
> > the other parts can potentially reach ~100 MB/s.
> >
> > Risk: Currently the patch sets compression to be disabled by default
> > (giving better performance), but the old behaviour can be reverted
> > by setting the relevant config parameter. (We could even potentially
> > consider defaulting to the old behaviour.)
>
> At this stage of the cycle, I would definitely consider defaulting to
> the old behavior for Havana, and then this exception would be a
> no-brainer. With the proposed default, I have to ask how much mileage
> the "SSL without compression" swift mode has seen, and the risk is
> substantially higher.
>
> > The patch was originally uploaded on Jun 13.
>
> Yes, but it was WIP-ed for two months waiting for the necessary support
> to land in Swift...
>
> --
> Thierry Carrez (ttx)
>
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