there's a scheduler in contrib/ that does pre-emption. look here https://github.com/apache/hadoop-common/tree/branch-0.22/mapreduce/src/contrib/dynamic-scheduler
On 28 June 2013 22:13, Sreejith Ramakrishnan <[email protected]>wrote: > I'm trying to implement a scheduler (EDF). The scheduler should be able to > kill or free-up a running map slot so that it can be assigned as a map slot > to another job. > > I did some looking around and found a kill() method in > org.apache.hadoop.mapred.JobInProgress. But, this kills the entire job. I > want the job to still be working after a map slot has been removed from it. > > Can you guys tell me the right method/class to use? > > Thanks >
