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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

          Activity

            People

              sameerp Sameer Paranjpye
              mahadev Mahadev Konar
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              Dates

                Created:
                Updated:
                Resolved: