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https://issues.apache.org/jira/browse/HADOOP-2092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12557541#action_12557541
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Amareshwari Sri Ramadasu commented on HADOOP-2092:
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I tested this with a map having an infinite loop which has a sleep inside i.e. 
it does not do any emit or progress other than sleep. Then I killed java tasks 
and checked c++ processes dieing.  I also tried killing job and shutting down 
cluster, in all the cases I noticed c++ processes dieing. We cannnot see any 
fprintf messages once the java processes die. 
Christian, Can you check the behavior with the latest patch once again? 

> Pipes C++ task does not die even if the Java tasks die
> ------------------------------------------------------
>
>                 Key: HADOOP-2092
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2092
>             Project: Hadoop
>          Issue Type: Bug
>          Components: pipes
>            Reporter: Amareshwari Sri Ramadasu
>            Assignee: Amareshwari Sri Ramadasu
>             Fix For: 0.16.0
>
>         Attachments: patch-2092.txt, patch-2092.txt, patch-2092.txt, 
> patch-2092.txt
>
>
> Pipes process does not die, when the java map task  dies.
> Pipes process does not die even when the cluster is down.

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