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https://issues.apache.org/jira/browse/MAPREDUCE-5196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13867977#comment-13867977
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Jason Lowe commented on MAPREDUCE-5196:
---------------------------------------
Makes sense. I just wanted to check if I was missing something before filing
the JIRA. I think the fix is very straightforward, will post a patch to
MAPREDUCE-5717.
> 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
> Fix For: 3.0.0
>
> 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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