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From "Antonio Piccolboni (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-2712) add stdin to mapdebug and reducedebug scripts in streaming
Date Tue, 19 Jul 2011 17:26:57 GMT
add stdin to mapdebug and reducedebug scripts in streaming
----------------------------------------------------------

                 Key: MAPREDUCE-2712
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2712
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: contrib/streaming
    Affects Versions: 0.20.2
            Reporter: Antonio Piccolboni


The current syntax for the mapdebug and reducedebug scripts is $script $stdout $stderr $syslog
$jobconf, which seems appropriate for task failure post-analysis. But it seems more than natural
to want to inspect or analyze the input to see under what input the task failed, up to rerunning
the task say in debug mode or with other monitoring in place. So why not make it $script $stdin
$stdout $stderr $syslog $jobconf to complete the circle? See also https://issues.apache.org/jira/browse/MAPREDUCE-2076

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