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From "Bikas Saha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-291) Dynamic resource configuration on NM
Date Wed, 02 Jan 2013 18:00:16 GMT

    [ https://issues.apache.org/jira/browse/YARN-291?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13542259#comment-13542259
] 

Bikas Saha commented on YARN-291:
---------------------------------

Junping, it would be helpful if you attach the patches all together when you are looking for
review comments. And leave a comment saying how to go about reviewing the patches. eg. order
in which to read the patches and what they contain. If there is 1-1 mapping between the doc
and your patches then the doc is sufficient. If not, then a comment explaining the patches
would be great.
                
> Dynamic resource configuration on NM
> ------------------------------------
>
>                 Key: YARN-291
>                 URL: https://issues.apache.org/jira/browse/YARN-291
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: nodemanager, scheduler
>            Reporter: Junping Du
>            Assignee: Junping Du
>              Labels: features
>         Attachments: Elastic Resources for YARN-v0.2.pdf, YARN-291-AddClientRMProtocolToSetNodeResource-03.patch,
YARN-291-all-v1.patch, YARN-291-core-HeartBeatAndScheduler-01.patch, YARN-291-JMXInterfaceOnNM-02.patch,
YARN-291-OnlyUpdateWhenResourceChange-01-fix.patch, YARN-291-YARNClientCommandline-04.patch
>
>
> The current Hadoop YARN resource management logic assumes per node resource is static
during the lifetime of the NM process. Allowing run-time configuration on per node resource
will give us finer granularity of resource elasticity. This allows Hadoop workloads to coexist
with other workloads on the same hardware efficiently, whether or not the environment is virtualized.
About more background and design details, please refer: HADOOP-9165.

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