Right now Redis cannot be clustered production-ready. I wish. As I stated in the Wiki, you'll have to pry Redis from my dead body, I am very happy with it, and for me its a true swiss army knife and I've used it as such.

Even though it doesn't have clustering - it's rock solid in production and I haven't experienced a drop in one of my Redis servers in around 3 years.

That being said, if you are building a system where reliability is an explicit requirement you can't take those risks.

Still in beta/alpha as far as I last checked (we've been waiting for it). Additionally as far as clustering is concerned there still seem to be a lot of 'unknowns' for me with clustering Redis. Using a cluster in RabbitMQ is dead simple and it just works.

you might want to do some fact checking yourself before you cringe.

i would start here: http://aphyr.com/tags/Redis