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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-291) Dynamic resource configuration on NM
Date Fri, 04 Jan 2013 03:44:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-291?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13543580#comment-13543580
] 

Junping Du commented on YARN-291:
---------------------------------

Thanks Luke for great comments! +1 for RM only approach to go first, we can go for NM approach
later.
As incorporating Bikas's comments, I will file several sub JIRA (JMX, RPC, CLI) to make it
clear.
                
> 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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