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https://issues.apache.org/jira/browse/MAPREDUCE-515?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinod K V resolved MAPREDUCE-515.
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Resolution: Invalid
Preemption is removed after HADOOP-5726. This issue is no longer valid.
> CapacityTaskScheduler.MapSchedulingMgr.killTasksFromJob() will not work as
> expected
> -----------------------------------------------------------------------------------
>
> Key: MAPREDUCE-515
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-515
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Amar Kamat
>
> Once capacity-scheduler decides on killing tasks, it selects running-jobs
> from the queue and issues {{killTasksFromJob()}}. The order in which it kills
> is as follows
> - non-local maps
> - local maps
> _Killing non-local maps :_
> The code here uses {{JobInProgress.getNonLocalRunningMaps()}}. HADOOP-2119
> introduced this for handling cases like _random-writer_. Hence this api will
> return an empty structure if there are reducers in the job. Hence the code
> fails to serve its purpose.
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