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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HADOOP-9102) winutils task isAlive does not return a non-zero exit code if the requested task is not alive
Date Wed, 05 Dec 2012 05:36:58 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-9102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Suresh Srinivas resolved HADOOP-9102.
-------------------------------------

       Resolution: Fixed
    Fix Version/s: 1-win
     Hadoop Flags: Reviewed

+1.

I committed the patch. Thank you Chris.
                
> winutils task isAlive does not return a non-zero exit code if the requested task is not
alive
> ---------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-9102
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9102
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: util
>    Affects Versions: 1-win
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>             Fix For: 1-win
>
>         Attachments: HADOOP-9102-branch-1-win.1.patch
>
>
> Work on YARN-233 noted that winutils task isAlive does not return a non-zero exit code
if the requested task is not alive.  This is inconsistent with the equivalent check on Unix,
kill -0, which uses a non-zero exit code to communicate status.  By changing winutils task
isAlive to return a non-zero exit code, we can make the error handling code on the Java side
consistent, avoiding the need for additional if (WINDOWS) checks.

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