Yes, you're correct, it was not an either-or proposition, I'm sorry, they dropped them both.
Seriously, I'm curious, what public facing, or any facing, components does Twitter use that is written in Ruby and/or Rails?
A Google search for "twitter rails" brings up the usual got dumped threads. A similar search, but this time, "twitter scala" brings up, as a first result "Scala School" for Twitter engineers, followed by a bunch of threads on the Twitter + Scala marriage.
Don't worry, Scala has its own issues (Yammer, for example, ditched Scala for Java due to, ironically enough, scalability issues).
Seriously, I'm curious, what public facing, or any facing, components does Twitter use that is written in Ruby and/or Rails?
A Google search for "twitter rails" brings up the usual got dumped threads. A similar search, but this time, "twitter scala" brings up, as a first result "Scala School" for Twitter engineers, followed by a bunch of threads on the Twitter + Scala marriage.
Don't worry, Scala has its own issues (Yammer, for example, ditched Scala for Java due to, ironically enough, scalability issues).