Hi There, This is a review request for a port of the Fair Scheduler to MR2 (https://issues.apache.org/jira/browse/MAPREDUCE-3451). Ideally someone familiar with the MR2 scheduling code would take a look at this.
This patch brings most of the Fair Scheduler features from MR1, with a few exceptions (Web UI, Load Balancer) which I've deferred to future commits. The patch is already somewhat large as-is. I'm happy to take care of follow-up maintenance on the scheduler once committed, in addition to the aforementioned future patches. - Patrick
