Hadoop Map/Reduce
  1. Hadoop Map/Reduce
  2. MAPREDUCE-3968

add support for getNumMapTasks() into mapreduce JobContext

    Details

    • Type: Improvement Improvement
    • Status: Resolved
    • Priority: Minor Minor
    • Resolution: Not A Problem
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: mrv1
    • Labels:
      None
    • Environment:

      hadoop 0.22

      Description

      In old mapred api there was way to query number of mappers:

      job.getNumMapTasks())

      No such function exists in new mapreduce api

      1. MAPREDUCE-3968.patch
        4 kB
        madhukara phatak
      2. maptasks.txt
        7 kB
        Radim Kolar
      3. maptasks2.txt
        7 kB
        Radim Kolar
      4. maptasks3.txt
        7 kB
        Radim Kolar
      5. maptasks4.txt
        7 kB
        Radim Kolar

        Activity

          People

          • Assignee:
            Unassigned
            Reporter:
            Radim Kolar
          • Votes:
            1 Vote for this issue
            Watchers:
            6 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development