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https://issues.apache.org/jira/browse/MAPREDUCE-4671?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13573024#comment-13573024
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Hadoop QA commented on MAPREDUCE-4671:
--------------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12551323/MAPREDUCE-4671.4.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 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3313//testReport/
Console output:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3313//console
This message is automatically generated.
> AM does not tell the RM about container requests that are no longer needed
> --------------------------------------------------------------------------
>
> Key: MAPREDUCE-4671
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4671
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 0.23.3, 2.0.0-alpha
> Reporter: Bikas Saha
> Assignee: Bikas Saha
> Attachments: MAPREDUCE-4671.1.patch, MAPREDUCE-4671.2.patch,
> MAPREDUCE-4671.3.patch, MAPREDUCE-4671.4.patch
>
>
> Say the AM wanted a container at hosts h1, h2, h3. After getting a container
> at h1 it should tell RM that it no longer needs containers at h2, h3.
> Otherwise on the RM h2, h3 remain valid allocation locations.
> The AM RMContainerAllocator does remove these resource requests internally.
> When the resource request container count drops to 0 then it drops the
> resource request from its tables but forgets to send the 0 sized request to
> the RM.
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