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

        Allen Wittenauer made changes -
        Affects Version/s trunk [ 12320360 ]
        Radim Kolar made changes -
        Status Patch Available [ 10002 ] Resolved [ 5 ]
        Resolution Not A Problem [ 8 ]
        Radim Kolar made changes -
        Attachment maptasks4.txt [ 12554701 ]
        Radim Kolar made changes -
        Attachment maptasks3.txt [ 12554700 ]
        Radim Kolar made changes -
        Attachment maptasks2.txt [ 12554698 ]
        Radim Kolar made changes -
        Attachment maptasks.txt [ 12554696 ]
        Radim Kolar made changes -
        Status Reopened [ 4 ] Patch Available [ 10002 ]
        Harsh J made changes -
        Resolution Incomplete [ 4 ]
        Status Resolved [ 5 ] Reopened [ 4 ]
        Radim Kolar made changes -
        Status Patch Available [ 10002 ] Resolved [ 5 ]
        Resolution Incomplete [ 4 ]
        madhukara phatak made changes -
        Status Open [ 1 ] Patch Available [ 10002 ]
        Affects Version/s trunk [ 12320360 ]
        Affects Version/s 0.22.0 [ 12314184 ]
        madhukara phatak made changes -
        Field Original Value New Value
        Attachment MAPREDUCE-3968.patch [ 12528063 ]
        Radim Kolar created issue -

          People

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

            Dates

            • Created:
              Updated:
              Resolved:

              Development