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Posted to mapreduce-issues@hadoop.apache.org by "Carlo Curino (JIRA)" <ji...@apache.org> on 2013/05/01 01:58:16 UTC

[jira] [Updated] (MAPREDUCE-5196) CheckpointAMPreemptionPolicy implements preemption in MR AM via checkpointing

     [ https://issues.apache.org/jira/browse/MAPREDUCE-5196?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Carlo Curino updated MAPREDUCE-5196:
------------------------------------

    Attachment: MAPREDUCE-5196.patch
    
> 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.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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