Is Clojure production ready?

Question

Where is it already being used in production and how ?

Answer 1

have a look at

• http://stackoverflow.com/questions/329221/medium-size-clojure-sample-application
• http://stackoverflow.com/questions/441952/is-there-a-working-real-world-project-using-clojure-that-take-advantage-of-multi

Answer 2

You won't find many examples of it being in "enterprise" use because it's still only 2 years old, and large companies are notoriously conservative about new languages.

That said, I've heard many anecdotes on the Clojure mailing list about "Clojure works great on our production system" and none saying "It didn't work for us." My feel for the language is that it is rock solid and personally I would have no hesitation about using it from a technological perspective.

Answer 3

Main two examples in the wild I know of are Flightcaster and a vet hospital that's system is running clojure. Main person who talks about this last one is Luc Prefontaine. Here's an example of him talking about it on the Google Group.

There are also at least two companies in the middle of building things in clojure (though I don't think either are in the wild yet) and of course Halloway, author of Programming Clojure, has his company doing contract work in Clojure that they have been very happy with to date.