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https://issues.apache.org/jira/browse/MAPREDUCE-3399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13176251#comment-13176251
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Vinod Kumar Vavilapalli commented on MAPREDUCE-3399:
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Neat patch, Sid! Looks good to me. +1.
> ContainerLocalizer should request new resources after completing the current
> one
> --------------------------------------------------------------------------------
>
> Key: MAPREDUCE-3399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3399
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: mrv2, nodemanager
> Affects Versions: 0.23.0
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Priority: Blocker
> Attachments: MR3399_v1.txt, MR3399_v2.txt
>
>
> Currently, the ContainerLocalizer to NM heartbeats to the NM every second.
> Not very significant, but this causes a ~4second delay in jobs (job jar,
> splits, etc). Instead, it should heartbeat to ask for additional resources to
> localize as soon as the previous one is localzied. There's already a TODO in
> the ContainerLocalizer for this.
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