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https://issues.apache.org/jira/browse/HADOOP-4001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12624648#action_12624648
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Vinod Kumar Vavilapalli commented on HADOOP-4001:
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Please see HADOOP-3759 and HADOOP-3581.
> TaskTracker's Memory resource should be considered when tasktracker asks for
> new task
> -------------------------------------------------------------------------------------
>
> Key: HADOOP-4001
> URL: https://issues.apache.org/jira/browse/HADOOP-4001
> Project: Hadoop Core
> Issue Type: New Feature
> Components: mapred
> Affects Versions: 0.17.2
> Reporter: ZhuGuanyin
> Priority: Minor
> Fix For: 0.19.0
>
>
> Currently, taskTracker only considers enough free disk space left when it
> asks for new task, memory resource should be considered too, or it may works
> badly in SMP environment.
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