The Underscore Archives

On 31/03/2008, Fintan Darragh <fintan.darragh at gmail.com> wrote:
> I'm rather sure that Facebook runs on PHP (there was some code leaked
>  a while ago), and that Twitter is actually what's running on RoR.
>
>  Twitter certainly has had a hard time with keeping up with the traffic
>  it receives recently. And it's a (relatively) simple app.

I think you mean the Rails/Ruby part is a relatively simple app - the
real backend system is a fairly meaty publish/subscribe system with a
lot of high availability and scaling cleverness (not always
successful).

The rails part isn't really doing a lot of heavy lifting - you've got
an array of reverse proxies, mongrel, etc handling a lot of the
frontend load and a different system handling the backend load.

A.

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