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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3399) ContainerLocalizer should request new resources after completing the current one
Date Fri, 23 Dec 2011 00:23:31 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175194#comment-13175194
] 

Hadoop QA commented on MAPREDUCE-3399:
--------------------------------------

+1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12508449/MR3399_v2.txt
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    +1 core tests.  The patch passed unit tests in .

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1500//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1500//console

This message is automatically generated.
                
> ContainerLocalizer should request new resources after completing the current one
> --------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3399
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3399
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: mrv2, nodemanager
>    Affects Versions: 0.23.0
>            Reporter: Siddharth Seth
>            Assignee: Siddharth Seth
>            Priority: Blocker
>         Attachments: MR3399_v1.txt, MR3399_v2.txt
>
>
> Currently, the ContainerLocalizer to NM heartbeats to the NM every second. Not very significant,
but this causes a ~4second delay in jobs (job jar, splits, etc). Instead, it should heartbeat
to ask for additional resources to localize as soon as the previous one is localzied. There's
already a TODO in the ContainerLocalizer for this.

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