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  1. Hadoop Map/Reduce
  2. MAPREDUCE-2511

Progress reported by map tasks of a map-only job is incorrect

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: 0.23.0
    • Fix Version/s: None
    • Component/s: None
    • Labels:
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      Description

      For a map task of a map-reduce job, the progress bar is (logically) split into 2 distinct phases
      1. Map Phase
      2. Sort Phase

      The map phase manages 66% of the overall tasks progress while the sort phase governs the rest i.e 33%.

      For a map task of a map-only job, there is no sort phase. Hence the entire map phase should govern 100% of the task's progress. Currently, the progress bar is split divided into 66%-33% irrespective of whether the job has reducers or not (i.e whether there is a sort phase or not).

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          is part of

          Improvement - An improvement or enhancement to an existing feature or task. MAPREDUCE-2492 [MAPREDUCE] The new MapReduce API should make available task's progress to the task

          • Major - Major loss of function.
          • Closed

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              • Assignee:
                amar_kamat Amar Kamat
                Reporter:
                amar_kamat Amar Kamat
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                • Created:
                  Updated:
                  Resolved: