Uploaded image for project: 'Hadoop Map/Reduce'
  1. Hadoop Map/Reduce
  2. MAPREDUCE-4591

Extend IFile format to include optional metadata

    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
    • None
    • nodemanager, task
    • None

    Description

      By including sections for per-segment and per-spill metadata, one can embed information useful to consumers (e.g., information on key ranges, sampling, etc.). These changes make IFiles ideal candidates for implementing checkpointing for tasks (MAPREDUCE-4589, MAPREDUCE-4590).

      Attachments

        Issue Links

          is part of

          New Feature - A new feature of the product, which has yet to be developed. MAPREDUCE-4584 Umbrella: Preemption and restart of MapReduce tasks

          • Major - Major loss of function.
          • Open

          Activity

            People

              Unassigned Unassigned
              cdouglas Christopher Douglas
              Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

                Created:
                Updated: