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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-311) Dynamic node resource configuration: core scheduler changes
Date Thu, 31 Oct 2013 00:06:27 GMT

    [ https://issues.apache.org/jira/browse/YARN-311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13809781#comment-13809781
] 

Hadoop QA commented on YARN-311:
--------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12611210/YARN-311-v12.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 2 new or modified
test files.

    {color:red}-1 javac{color:red}.  The patch appears to cause the build to fail.

Console output: https://builds.apache.org/job/PreCommit-YARN-Build/2324//console

This message is automatically generated.

> Dynamic node resource configuration: core scheduler changes
> -----------------------------------------------------------
>
>                 Key: YARN-311
>                 URL: https://issues.apache.org/jira/browse/YARN-311
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager, scheduler
>            Reporter: Junping Du
>            Assignee: Junping Du
>         Attachments: YARN-311-v10.patch, YARN-311-v11.patch, YARN-311-v12.patch, YARN-311-v1.patch,
YARN-311-v2.patch, YARN-311-v3.patch, YARN-311-v4.patch, YARN-311-v4.patch, YARN-311-v5.patch,
YARN-311-v6.1.patch, YARN-311-v6.2.patch, YARN-311-v6.patch, YARN-311-v7.patch, YARN-311-v8.patch,
YARN-311-v9.patch
>
>
> As the first step, we go for resource change on RM side and expose admin APIs (admin
protocol, CLI, REST and JMX API) later. In this jira, we will only contain changes in scheduler.

> The flow to update node's resource and awareness in resource scheduling is: 
> 1. Resource update is through admin API to RM and take effect on RMNodeImpl.
> 2. When next NM heartbeat for updating status comes, the RMNode's resource change will
be aware and the delta resource is added to schedulerNode's availableResource before actual
scheduling happens.
> 3. Scheduler do resource allocation according to new availableResource in SchedulerNode.
> For more design details, please refer proposal and discussions in parent JIRA: YARN-291.



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