They certainly seem to have a lot of infrastructure running on the JVM (both Scala and Java.) There is some information there (with emphasis on Scala, obviousl

They certainly seem to have a lot of infrastructure running on the JVM (both Scala and Java.) There is some information there (with emphasis on Scala, obviously): http://www.typesafe.com/resources/case-studies-and-stories/new-tweets-per-second-record-and-how http://www.typesafe.com/resources/case-studies-and-stories/n...