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Posted to common-commits@hadoop.apache.org by Apache Wiki <wi...@apache.org> on 2006/09/11 19:55:02 UTC

[Lucene-hadoop Wiki] Update of "HowToDebugMapReducePrograms" by HairongKuang

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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.