You want to build a web-app that literally has a live-pulse? Well, Erlang or NodeJS are great, but he’ll if we have the time or luxury to rebuild our web-app in them. If want to use what you got, ala Ruby on Rails and MySQL, then I’ll show you how to get the speed you want.

What we’re going to use:

WebSockets
Ruby 1.9
Rails 3
Redis
Mysql2
EventMachine
RabbitMQ
JQuery

My computer is dead, new one coming soon, this article will be compelte first week of march.