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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2997) NM keeps sending finished containers to RM until app is finished
Date Wed, 31 Dec 2014 12:19:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-2997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14262134#comment-14262134
] 

Hadoop QA commented on YARN-2997:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12689672/YARN-2997.2.patch
  against trunk revision e7257ac.

    {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}.  There were no new javadoc 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
2.0.3) 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-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager.

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/6226//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/6226//console

This message is automatically generated.

> NM keeps sending finished containers to RM until app is finished
> ----------------------------------------------------------------
>
>                 Key: YARN-2997
>                 URL: https://issues.apache.org/jira/browse/YARN-2997
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.6.0
>            Reporter: Chengbing Liu
>         Attachments: YARN-2997.2.patch, YARN-2997.patch
>
>
> We have seen in RM log a lot of
> {quote}
> INFO org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler: Null
container completed...
> {quote}
> It is caused by NM sending completed containers repeatedly until the app is finished.
On the RM side, the container is already released, hence {{getRMContainer}} returns null.



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