Uploaded image for project: 'Hadoop Map/Reduce'
  1. Hadoop Map/Reduce
  2. MAPREDUCE-1242

Chain APIs error misleading

VotersWatch issueWatchersCreate sub-taskLinkCloneUpdate Comment AuthorReplace String in CommentUpdate Comment VisibilityDelete Comments
    XMLWordPrintableJSON

Details

    • Bug
    • Status: Closed
    • Trivial
    • Resolution: Fixed
    • 0.20.2
    • 0.23.0
    • None
    • None
    • Reviewed
    • Fix a misleading exception message in case the Chained Mappers have mismatch in input/output Key/Value pairs between them.

    Description

      Hi,
      I was using the Chain[Mapper/Reducer] APIs , and in Class Chain line 207 the error thrown :

      "The Mapper output key class does not match the previous Mapper input key class"

      Shouldn't this be "The Mapper input key class does not match the previous Mapper Output key class" ? Sort of misleads

      Attachments

        1. MAPREDUCE-1242.patch
          0.9 kB
          Harsh J
        2. MAPREDUCE-1242.r2.patch
          1 kB
          Harsh J

        Activity

          This comment will be Viewable by All Users Viewable by All Users
          Cancel

          People

            qwertymaniac Harsh J
            amogh Amogh Vasekar
            Votes:
            0 Vote for this issue
            Watchers:
            1 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Slack

                Issue deployment