The idea of instant scalability is somewhat flawed. James Golick does a pretty good job of explaining why here: http://jamesgolick.com/2010/10/27/we-are-experi

The idea of instant scalability is somewhat flawed. James Golick does a pretty good job of explaining why here: http://jamesgolick.com/2010/10/27/we-are-experiencing-too-much-load-lets-add-a-new-server..html http://jamesgolick.com/2010/10/27/we-are-experiencing-too-mu...