Agree. Some of the performance tuning with Hadoop could only be done if you knew how it worked underneath and if you know how the clusters are set up. I'm also

Agree. Some of the performance tuning with Hadoop could only be done if you knew how it worked underneath and if you know how the clusters are set up. I'm also not sure if Pig/Scalding/Scoobi can do this already, but it'd also be nice if they could abstract tunable settings as well on a job-level basis. By the way, hook 'em!