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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-291) Dynamic resource configuration on NM
Date Wed, 26 Dec 2012 23:52:12 GMT

    [ https://issues.apache.org/jira/browse/YARN-291?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13539754#comment-13539754
] 

Vinod Kumar Vavilapalli commented on YARN-291:
----------------------------------------------

Interesting. Quickly read throw your doc, can you please post YARN only design here?
 - +1 for the reactive resource change to start with.
 - Instead of exposing via JMX, being a fairly fundamental feature, we should do RPC and optionally
the web-services to the NM directly. And we should add command line util too.
                
> 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
>
> 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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