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  1. Hadoop Common
  2. HADOOP-343

In case of dead task tracker, the copy mapouts try copying all mapoutputs from this tasktracker

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 0.6.2
    • 0.7.0
    • None
    • None

    Description

      In case of a dead task tracker, the reduces which do not have the updated map out locations try copygin files from this node and since there are failures on copying, this leads to backoff and slowing down of the copy pahse.

      Attachments

        1. bugfix.patch
          2 kB
          Mahadev Konar
        2. cache-purge.txt
          1 kB
          Sameer Paranjpye

        Issue Links

        is related to

        Improvement - An improvement or enhancement to an existing feature or task. HADOOP-248 locating map outputs via random probing is inefficient

        • Major - Major loss of function.
        • Closed

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            sameerp Sameer Paranjpye
            mahadev Mahadev Konar
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              Updated:
              Resolved:

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