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https://issues.apache.org/jira/browse/MAPREDUCE-5269?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14322238#comment-14322238
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Augusto Souza commented on MAPREDUCE-5269:
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Thank you Tsuyoshi OZAWA! I will talk with Carlo Curino and Chris Douglas about
splittig into multiple JIRAs. Best regards!
> Preemption of Reducer (and Shuffle) via checkpointing
> -----------------------------------------------------
>
> Key: MAPREDUCE-5269
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5269
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mrv2
> Reporter: Carlo Curino
> Assignee: Carlo Curino
> Attachments: MAPREDUCE-5269.2.patch, MAPREDUCE-5269.3.patch,
> MAPREDUCE-5269.4.patch, MAPREDUCE-5269.5.patch, MAPREDUCE-5269.6.patch,
> MAPREDUCE-5269.7.patch, MAPREDUCE-5269.patch
>
>
> This patch tracks the changes in the task runtime (shuffle, reducer context,
> etc.) that are required to implement checkpoint-based preemption of reducer
> tasks.
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