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  1. Hadoop Common
  2. HADOOP-4305

repeatedly blacklisted tasktrackers should get declared dead

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.20.0
    • None
    • None
    • Reviewed
    • Improved TaskTracker blacklisting strategy to better exclude faulty tracker from executing tasks.

    Description

      When running a batch of jobs it often happens that the same tasktrackers are blacklisted again and again. This can slow job execution considerably, in particular, when tasks fail because of timeout.
      It would make sense to no longer assign any tasks to such tasktrackers and to declare them dead.

      Attachments

        1. patch-4305-4.txt
          37 kB
          Amareshwari Sriramadasu
        2. patch-4305-3.txt
          31 kB
          Amareshwari Sriramadasu
        3. patch-4305-2.txt
          29 kB
          Amareshwari Sriramadasu
        4. patch-4305-1.txt
          21 kB
          Amareshwari Sriramadasu
        5. patch-4305-0.18.txt
          21 kB
          Amareshwari Sriramadasu

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. MAPREDUCE-108 Blacklisted hosts may not be able to serve map outputs

          • Major - Major loss of function.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. MAPREDUCE-302 Maintaining cluster information across multiple job submissions

          • Major - Major loss of function.
          • Open

          Activity

            People

              amareshwari Amareshwari Sriramadasu
              ckunz Christian Kunz
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              Dates

                Created:
                Updated:
                Resolved: