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From "Remus Rusanu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5196) CheckpointAMPreemptionPolicy implements preemption in MR AM via checkpointing
Date Wed, 04 Jun 2014 15:41:01 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14017779#comment-14017779
] 

Remus Rusanu commented on MAPREDUCE-5196:
-----------------------------------------

MAPREDUCE-5912

> 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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