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https://issues.apache.org/jira/browse/YARN-1922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14196016#comment-14196016
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Hudson commented on YARN-1922:
------------------------------
SUCCESS: Integrated in Hadoop-Yarn-trunk #733 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk/733/])
YARN-1922. Fixed NodeManager to kill process-trees correctly in the presence of
races between the launch and the stop-container call and when root processes
crash. Contributed by Billie Rinaldi. (vinodkv: rev
c5a46d4c8ca236ff641a309f256bbbdf4dd56db5)
*
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/launcher/ContainerLaunch.java
* hadoop-yarn-project/CHANGES.txt
*
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/launcher/TestContainerLaunch.java
> Process group remains alive after container process is killed externally
> ------------------------------------------------------------------------
>
> Key: YARN-1922
> URL: https://issues.apache.org/jira/browse/YARN-1922
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 2.4.0
> Environment: CentOS 6.4
> Reporter: Billie Rinaldi
> Assignee: Billie Rinaldi
> Fix For: 2.6.0
>
> Attachments: YARN-1922.1.patch, YARN-1922.2.patch, YARN-1922.3.patch,
> YARN-1922.4.patch, YARN-1922.5.patch, YARN-1922.6.patch
>
>
> If the main container process is killed externally, ContainerLaunch does not
> kill the rest of the process group. Before sending the event that results in
> the ContainerLaunch.containerCleanup method being called, ContainerLaunch
> sets the "completed" flag to true. Then when cleaning up, it doesn't try to
> read the pid file if the completed flag is true. If it read the pid file, it
> would proceed to send the container a kill signal. In the case of the
> DefaultContainerExecutor, this would kill the process group.
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