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From "Amareshwari Sri Ramadasu (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (HADOOP-2092) Pipes C++ task does not die even if the Java tasks die
Date Wed, 24 Oct 2007 06:59:51 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12537210
] 

amareshwari edited comment on HADOOP-2092 at 10/23/07 11:58 PM:
-----------------------------------------------------------------------------

Application is not generating any progress messages.  

I reproduced the problem by putting an infinite loop in map method and killed Java map tasks
when it is running. C++ processes does not die. 

I think  we need a ping mechanism from C++ process to Java task to solve this.

      was (Author: amareshwari):
    Application is not generating any progress messages.  I think  we need a ping mechanism
from C++ process to Java task. I reproduced the problem by putting an infinite loop in map
method and killed Java map tasks when it is running. C++ processes does not die. But the application
exits after trying 4 times.
  
> 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
>            Priority: Blocker
>             Fix For: 0.15.0
>
>
> 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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