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https://issues.apache.org/jira/browse/MAPREDUCE-5196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13855069#comment-13855069
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Chris Douglas commented on MAPREDUCE-5196:
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Failed test is due to YARN-1463
> CheckpointAMPreemptionPolicy implements preemption in MR AM via checkpointing
> ------------------------------------------------------------------------------
>
> Key: MAPREDUCE-5196
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5196
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mr-am, mrv2
> Reporter: Carlo Curino
> Assignee: Carlo Curino
> Attachments: MAPREDUCE-5196.1.patch, MAPREDUCE-5196.2.patch,
> MAPREDUCE-5196.3.patch, MAPREDUCE-5196.patch, MAPREDUCE-5196.patch
>
>
> This JIRA tracks a checkpoint-based AM preemption policy. The policy handles
> propagation of the preemption requests received from the RM to the
> appropriate tasks, and bookeeping of checkpoints. Actual checkpointing of the
> task state is handled in upcoming JIRAs.
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