And speaking of choice in context of massively concurrent CSP systems, Erlang is (as of now) the superior choice for that sort of system architecture.
Erlang is ok, but the staff don't scale. Have you tried finding Erlang programmers?
http://basho.com/products/riak-overview/
I think you mean Erlang's strict CSP -- share nothing -- is not as efficient as shared memory systems such as Go. That is a fact and by design it is a feature and not a bug. Nine 9s: http://pragprog.com/articles/erlang
> Have you tried finding Erlang programmers?
Go looks easy but it is a subtle language. Brad F. writes a server and it performs. Mr. X writes one and it crawls. Go figure.
It certainly scales from a technology point of view.
Go is simple enough to allow Mr X's code to go through a review by Brad F until Mr X gets the point.