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Hudson commented on MAPREDUCE-1974: ----------------------------------- Integrated in Hadoop-Mapreduce-trunk-Commit #603 (See [https://hudson.apache.org/hudson/job/Hadoop-Mapreduce-trunk-Commit/603/]) MAPREDUCE-1974. Fix multiple preemtions of the same task in FairScheduler. Contributed by Scott Chen. > FairScheduler can preempt the same task many times > -------------------------------------------------- > > Key: MAPREDUCE-1974 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-1974 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: contrib/fair-share > Affects Versions: 0.21.0, 0.21.1, 0.22.0, 0.23.0 > Reporter: Scott Chen > Assignee: Scott Chen > Fix For: 0.22.0 > > Attachments: MAPREDUCE-1974.txt > > > In FairScheduler.preemptTasks(), tasks are collected from > JobInProgress.runningMapCache. > But tasks repeat multiple times in JobInProgress.runningMapCache (on rack, > node and cluster). > This makes FairScheduler preempt the same task many times. -- This message is automatically generated by JIRA. - For more information on JIRA, see: http://www.atlassian.com/software/jira