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https://issues.apache.org/jira/browse/MAPREDUCE-961?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12777620#action_12777620
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Arun C Murthy commented on MAPREDUCE-961:
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I'm looking at all the comments here and I cannot find a single, coherent,
design for this feature - a major one. Can you please put up a design?
I'd first like to understand/debate the design before I look at the patch.
> ResourceAwareLoadManager to dynamically decide new tasks based on current
> CPU/memory load on TaskTracker(s)
> -----------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-961
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-961
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: contrib/fair-share
> Affects Versions: 0.22.0
> Reporter: dhruba borthakur
> Assignee: Scott Chen
> Fix For: 0.22.0
>
> Attachments: HIVE-961.patch, MAPREDUCE-961-v2.patch,
> MAPREDUCE-961-v3.patch
>
>
> Design and develop a ResouceAwareLoadManager for the FairShare scheduler that
> dynamically decides how many maps/reduces to run on a particular machine
> based on the CPU/Memory/diskIO/network usage in that machine. The amount of
> resources currently used on each task tracker is being fed into the
> ResourceAwareLoadManager in real-time via an entity that is external to
> Hadoop.
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