Very interesting development - this is essentially writing an AppMaster (as in YARN apps) for MapReduce, but in Go.<p>I've been playing with writing custom MR (style) streaming apps in Go & finding that the go-routine impl fits neatly into long chains of map/reduce/filter pipes.<p><a href="https://github.com/hortonworks/gohadoop" rel="nofollow">https://github.com/hortonworks/gohadoop</a><p>I'm mostly missing a proper HDFS implementation and a proper distributed RPC model (fork of the JNI wrapped libhdfs works, but is single threaded & synchronous).<p>In good time, I hope - perhaps I get it in by Feb :)