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  1. Hadoop Map/Reduce
  2. MAPREDUCE-7252

Handling 0 progress in SimpleExponential task runtime estimator

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Details

    • Bug
    • Status: Resolved
    • Minor
    • Resolution: Fixed
    • None
    • 3.3.0, 3.1.4, 3.2.2, 2.10.1
    • None
    • None

    Description

      The simple exponential runtime estimator (added in MAPREDUCE-7208) seems not to handle the corner cases where the delta progress is 0. As a result, the forecast will be NaN or Inf which messes up the subsequent forecast values.

      Attachments

        1. MAPREDUCE-7252.001.patch
          28 kB
          Ahmed Hussein
        2. MAPREDUCE-7252.002.patch
          30 kB
          Ahmed Hussein
        3. MAPREDUCE-7252.003.patch
          30 kB
          Ahmed Hussein
        4. MAPREDUCE-7252-branch-2.10.003.patch
          30 kB
          Ahmed Hussein

        Issue Links

          breaks

          Bug - A problem which impairs or prevents the functions of the product. MAPREDUCE-7257 Fix incorrect javadoc format

          • Major - Major loss of function.
          • Resolved
          is a child of

          Improvement - An improvement or enhancement to an existing feature or task. MAPREDUCE-7208 Tuning TaskRuntimeEstimator

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Activity

            People

              ahussein Ahmed Hussein
              ahussein Ahmed Hussein
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              Dates

                Created:
                Updated:
                Resolved: