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Posted to common-dev@hadoop.apache.org by "Chris Nauroth (JIRA)" <ji...@apache.org> on 2012/11/29 01:37:58 UTC

[jira] [Created] (HADOOP-9102) winutils task isAlive does not return a non-zero exit code if the requested task is not alive

Chris Nauroth created HADOOP-9102:
-------------------------------------

             Summary: 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


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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[jira] [Resolved] (HADOOP-9102) winutils task isAlive does not return a non-zero exit code if the requested task is not alive

Posted by "Suresh Srinivas (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HADOOP-9102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Suresh Srinivas resolved HADOOP-9102.
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       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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