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From "Eric Badger (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13709) Ability to clean up subprocesses spawned by Shell when the process exits
Date Tue, 13 Dec 2016 23:02:58 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15746547#comment-15746547
] 

Eric Badger commented on HADOOP-13709:
--------------------------------------

Fantastic! Thanks, [~jlowe], [~andrew.wang], [~daryn]! I'll put up an associated patch on
YARN-5641 to add it to the localizer.

> Ability to clean up subprocesses spawned by Shell when the process exits
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-13709
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13709
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 2.2.0
>            Reporter: Eric Badger
>            Assignee: Eric Badger
>             Fix For: 2.9.0, 3.0.0-alpha2
>
>         Attachments: HADOOP-13709.001.patch, HADOOP-13709.002.patch, HADOOP-13709.003.patch,
HADOOP-13709.004.patch, HADOOP-13709.005.patch, HADOOP-13709.006.patch, HADOOP-13709.007.patch,
HADOOP-13709.008.patch, HADOOP-13709.009.patch, HADOOP-13709.009.patch
>
>
> The runCommand code in Shell.java can get into a situation where it will ignore InterruptedExceptions
and refuse to shutdown due to being in I/O waiting for the return value of the subprocess
that was spawned. We need to allow for the subprocess to be interrupted and killed when the
shell process gets killed. Currently the JVM will shutdown and all of the subprocesses will
be orphaned and not killed.



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