Instead of ranting in response to this mostly-dead HN thread, I posted a blog entry: http://www.jacobrothstein.com/cloud-mapreduce-vs-hadoop http://www.jacobrot

Instead of ranting in response to this mostly-dead HN thread, I posted a blog entry: http://www.jacobrothstein.com/cloud-mapreduce-vs-hadoop http://www.jacobrothstein.com/cloud-mapreduce-vs-hadoop In short, the 60x speed gain in comparison to Hadoop isn't fair, and in more reasonable tests the speed gain was moderate (<2x).