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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-2947) [HOD] Hod should redirect stderr and stdout of Hadoop daemons to assist debugging
Date Thu, 06 Mar 2008 08:24:58 GMT
[HOD] Hod should redirect stderr and stdout of Hadoop daemons to assist debugging
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                 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
             Fix For: 0.17.0


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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