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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-2947) [HOD] Hod should redirect stderr and stdout of Hadoop daemons to assist debugging
Date Wed, 02 Apr 2008 05:17:24 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-2947?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hemanth Yamijala updated HADOOP-2947:
-------------------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

I just committed this. Thanks, Vinod !

> [HOD] Hod should redirect stderr and stdout of Hadoop daemons to assist debugging
> ---------------------------------------------------------------------------------
>
>                 Key: HADOOP-2947
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2947
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: contrib/hod
>    Affects Versions: 0.16.0
>            Reporter: Hemanth Yamijala
>            Assignee: Vinod Kumar Vavilapalli
>            Priority: Blocker
>             Fix For: 0.17.0
>
>         Attachments: HADOOP-2947, HADOOP-2947.2, HADOOP-2947.3, HADOOP-2947.4
>
>
> Copied from internal bug details from Koji:
> ==========================
> Sometimes JobTracker/TaskTracker starts consuming 99% cpu and stops responding to 'jstack'
call.  In those cases,
> usually it still responds to kill -QUIT signal which forces the jvm to dump the stack
to stdout.  
> Please have the stdout of JT/TT redirected to a file. 
> Adding stderr. 
> If thread has an uncaught exception, it prints out to stderr and dies.
> ==========================

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