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  1. Hadoop Common
  2. HADOOP-313

A stand alone driver for individual tasks

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.5.0
    • Component/s: None
    • Labels:
      None

      Description

      This is a tool to reproduce problems and to run unit tests involving either a map or reduce task.
      You just give it a reduce directory on the command line.

      Usage: java org.apache.hadoop.mapred.StandaloneReduceTask <taskdir> [<limitmaps>]
      taskdir name encodes: task_<jobid>r<partition>_<attempt>
      taskdir contains job.xml and one or more input files named: map_<dddd>.out
      You should run with the same -Xmx option as the TaskTracker child JVM

        Attachments

        1. sareduce.patch
          10 kB
          Michel Tourn
        2. stand-alone-task.patch
          11 kB
          Owen O'Malley
        3. stand-alone-task.patch
          18 kB
          Owen O'Malley

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              • Assignee:
                michel_tourn Michel Tourn
                Reporter:
                michel_tourn Michel Tourn
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                • Created:
                  Updated:
                  Resolved: