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https://issues.apache.org/jira/browse/HADOOP-9752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13796261#comment-13796261
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David Yan commented on HADOOP-9752:
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Would be nice if we could fix the kill command in other places too.
org/apache/hadoop/mapreduce/util/ProcessTree.java
org/apache/hadoop/yarn/util/TestProcfsBasedProcessTree.java
> Latest Ubuntu (13.04) /bin/kill parameter for process group requires a
> 'double dash kill -0 -- -<pid>
> ------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-9752
> URL: https://issues.apache.org/jira/browse/HADOOP-9752
> Project: Hadoop Common
> Issue Type: Bug
> Components: util
> Affects Versions: 3.0.0, 2.0.4-alpha
> Reporter: Robert Parker
> Assignee: Robert Parker
> Attachments: HADOOP-9752v1.patch, HADOOP-9752v2.patch,
> HADOOP-9752v3.patch, HADOOP-9752v4.patch
>
>
> This changed on Ubuntu 12.10 and later. This prevents the kill command from
> executing correctly in Shell.java.
> There is a bug filed in Ubuntu but there is not much activity.
> https://bugs.launchpad.net/ubuntu/+source/coreutils/+bug/1077796
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