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[Dmitry Ukov <dukov@xxxxxxxxxxxx>]

Actually we can create such architecture without writing code. "Ring of
ring" is a classic Ring configured in specific way.

On Mon, Mar 12, 2012 at 9:49 PM, John Dickinson <me@xxxxxx> wrote:

> On Mar 11, 2012, at 12:16 AM, Dmitry Ukov wrote:
>
> > Hi all,
> > I want to introduce some ideas about Swift.
> >
> > Let’s assume we have huge amount of data stored in Swift (e.g. 10Pb).
> This data are dynamically changed by users. So we need to reduce network
> load caused by replication and intensive data uploading/downloading.
> > My proposal is to create so called “Ring of rings”. For example we have
> 2 data centers with deployed Swift. We can distinguish some nodes for
> serving “Ring of rings” (actually we need only Proxy Servers).
>
> <snip>
>
> > So we can use Ring to determine data center to send http request to.
> >
> > What do you think about this scheme?
> > Feedback from the OpenStack/Swift community would be very appreciated.
>
> I think these are great ideas to explore. Solving a multi-DC deployment is
> a goal we have talked about for a long time.
>
> There is another thread on this mailing list from John Leach that is
> talking about solving this same problem, but it uses tiered zones in a
> single ring instead of a "ring of rings". While conceptually similar
> (indeed it may just be semantic differences), I think the tiered zones
> approach is a better path to explore, and I'd love to hear your thoughts on
> that thread.
>
> --John
>
>
>
>


-- 
Kind regards
Dmitry Ukov
IT Engineer
Mirantis, Inc.