Hadoop Map/Reduce
  1. Hadoop Map/Reduce
  2. MAPREDUCE-1938

Ability for having user's classes take precedence over the system classes for tasks' classpath

    Details

      Description

      It would be nice to have the ability in MapReduce to allow users to specify for their jobs alternate implementations of classes that are already defined in the MapReduce libraries. For example, an alternate implementation for CombineFileInputFormat.

      1. mapred-1938-3.patch
        8 kB
        Krishna Ramachandran
      2. mapred-1938-2.patch
        7 kB
        Krishna Ramachandran
      3. mapred-1938-1
        14 kB
        Krishna Ramachandran
      4. mr-1938-bp20.1.patch
        6 kB
        Devaraj Das
      5. mr-1938-bp20.patch
        5 kB
        Devaraj Das

        Issue Links

          Activity

          Devaraj Das created issue -
          Devaraj Das made changes -
          Field Original Value New Value
          Attachment mr-1938-bp20.patch [ 12449409 ]
          Devaraj Das made changes -
          Attachment mr-1938-bp20.1.patch [ 12449483 ]
          Krishna Ramachandran made changes -
          Attachment mapred-1938-1 [ 12452481 ]
          Krishna Ramachandran made changes -
          Attachment mapred-1938-2.patch [ 12452591 ]
          Krishna Ramachandran made changes -
          Status Open [ 1 ] Patch Available [ 10002 ]
          Amareshwari Sriramadasu made changes -
          Status Patch Available [ 10002 ] Open [ 1 ]
          Amareshwari Sriramadasu made changes -
          Assignee Krishna Ramachandran [ ramach ]
          Krishna Ramachandran made changes -
          Attachment mapred-1938-3.patch [ 12453856 ]
          Allen Wittenauer made changes -
          Link This issue relates to HADOOP-6942 [ HADOOP-6942 ]
          Eli Collins made changes -
          Priority Major [ 3 ] Blocker [ 1 ]
          Tom White made changes -
          Link This issue is related to MAPREDUCE-1700 [ MAPREDUCE-1700 ]
          Nigel Daley made changes -
          Fix Version/s 0.23.0 [ 12315570 ]
          Fix Version/s 0.22.0 [ 12314184 ]
          Arun C Murthy made changes -
          Status Open [ 1 ] Resolved [ 5 ]
          Fix Version/s 0.20.204.0 [ 12316318 ]
          Resolution Fixed [ 1 ]
          Arun C Murthy made changes -
          Status Resolved [ 5 ] Closed [ 6 ]
          Harsh J made changes -
          Fix Version/s 0.23.0 [ 12315570 ]
          Harsh J made changes -
          Fix Version/s 0.23.0 [ 12315570 ]
          Daniel Dai made changes -
          Link This issue blocks PIG-2484 [ PIG-2484 ]
          Harsh J made changes -
          Link This issue is duplicated by HADOOP-6942 [ HADOOP-6942 ]

            People

            • Assignee:
              Krishna Ramachandran
              Reporter:
              Devaraj Das
            • Votes:
              3 Vote for this issue
              Watchers:
              19 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:

                Development