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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2721) Use job control for tasks (and therefore for pipes and streaming)
Date Mon, 28 Jan 2008 18:13:36 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12563224#action_12563224

Arun C Murthy commented on HADOOP-2721:


More discussion here: http://issues.apache.org/jira/browse/HADOOP-2092?focusedCommentId=12537386#action_12537386

> Use job control for tasks (and therefore for pipes and streaming)
> -----------------------------------------------------------------
>                 Key: HADOOP-2721
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2721
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: contrib/streaming, mapred, pipes
>            Reporter: Owen O'Malley
>            Assignee: Devaraj Das
>             Fix For: 0.17.0
> We should use the setsid command when the task is launched to create a new session. We
should be able to use the setsid program when we launch the bash process to create a new session.
That will allow us to kill the entire session with a single signal and remove the need for
the ping methods in both TaskTracker.Child and pipes.

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