I too think anycast is the correct answer. If you can not do that, and
there are reasons, then GSS comes to mind.
On Aug 6, 2014 11:17 PM, "David Schwartz" <newsletters@thetoolwiz.com>
wrote:

> Here’s something interesting for the infrastructure geeks on the list ...
>
> How would you approach setting up a service that had to sink around, oh …
> say … 10-20 million small HTTP POST requests per minute throughout the day,
> from sources geographically distributed around the country?
>
> To do development and get the logic working, a small server is sufficient.
> But it needs to scale quickly once it’s launched.
>
> There will be a high degree of geo-locality, so servers could be set up to
> handle requests from different geographic areas.  HTTP requests from a
> given area would be routed to whatever server is dedicated for that area. I
> guess their IP address could be used for that purpose?
>
> (How granular is the location data for IP addresses on mobile devices? Are
> they reliable? We could add a location geotag to the packet headers if that
> would help.)
>
> Note that the servers don’t need to be physically LOCATED in the area;
> rather, they're dedicated to SERVING a well-defined geographic area.
>
> There’s no need for cross-talk, either. That is, there’s no need for a
> server serving, say, the LA area to cross-post with one in San Diego,
> except in a very small overlapping area which is easy to address.
>
> Can this sort of routing be done with a DNS service?  (eg.,
> DNSMadeEasy.com is one I’m familiar with)
>
> Or is something more massive needed?
>
> Also note that this would be an automated service. It has a very steady
> stream of small incoming packets, peaking at various times of the day, with
> limited responses. No ads, no graphics, no user interactions at all.
>
> I know there are infrastructure services in place to handle this kind of
> thing, like what Amazon offers, and others. I’m looking for any specific
> pointers to services that might fit this use case profile.
>
> -David
>
>
>
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