Puppet Labs is one and mostly performance. There's trouble in Configuration Management land, mostly due to the (un)scalability of Ruby in some parts of the stac

Puppet Labs is one and mostly performance. There's trouble in Configuration Management land, mostly due to the (un)scalability of Ruby in some parts of the stack. PuppetDB is Clojure, there's a cFacter now (C++11), I'm pretty sure we'll see a cAgent too and I also expect that we'll see them turning to JRuby+Clojure to lift out some parts of the Puppet Master.