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From Apache Wiki <wikidi...@apache.org>
Subject [Lucene-hadoop Wiki] Update of "HowToDebugMapReducePrograms" by HairongKuang
Date Mon, 11 Sep 2006 17:55:02 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Lucene-hadoop Wiki" for change notification.

The following page has been changed by HairongKuang:
http://wiki.apache.org/lucene-hadoop/HowToDebugMapReducePrograms

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      On the node with the failed task, go to the task tracker's local directory and cd to
      ''<local>''/taskTracker/''<taskid>'' and run
      {{{
- % hadoop org.apache.hadoop.IsolationRunner job.xml
+ % hadoop org.apache.hadoop.mapred.IsolationRunner job.xml
      }}}
     This will run the failed task in a single jvm, which can be in the debugger, over precisely
the same    
     input.

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