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Posted to mapreduce-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2013/02/07 01:10:14 UTC
[jira] [Commented] (MAPREDUCE-4671) AM does not tell the RM about
container requests that are no longer needed
[ https://issues.apache.org/jira/browse/MAPREDUCE-4671?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13573024#comment-13573024 ]
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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