I've never seen a Riak MR job over more than 3 million keys complete, on a 6-node SSD cluster. It might be possible, but you'd have to throw a lot more HW at it

I've never seen a Riak MR job over more than 3 million keys complete, on a 6-node SSD cluster. It might be possible, but you'd have to throw a lot more HW at it than the comparable Hadoop setup.