[jira] [Comment Edited] (HADOOP-13709) Clean up subprocesses spawned by Shell.java:runCommand when the shell process exits

["Eric Badger (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-13709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15566733#comment-15566733 ] 

Eric Badger edited comment on HADOOP-13709 at 10/11/16 10:16 PM:
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[~andrew.wang], the code's been this way since Mapreduce was put into separate projects back in 2009. I put down the affect version as 2.2, but it goes back further than that.


was (Author: ebadger):
[~andrew.wang], the code's been this way since Mapreduce was put into separate projects back in 2009. So I put down the affect version as 0.22, but it goes back further than that.

> Clean up subprocesses spawned by Shell.java:runCommand when the shell process exits
> -----------------------------------------------------------------------------------
>
>                 Key: HADOOP-13709
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13709
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.2.0
>            Reporter: Eric Badger
>            Assignee: Eric Badger
>         Attachments: HADOOP-13709.001.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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