Hadoop Map/Reduce
  1. Hadoop Map/Reduce
  2. MAPREDUCE-4591

Extend IFile format to include optional metadata

    Details

    • Type: Improvement Improvement
    • Status: Open
    • Priority: Major Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: nodemanager, task
    • Labels:
      None
    • Target Version/s:

      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).

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            • Assignee:
              Unassigned
              Reporter:
              Chris Douglas
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              Dates

              • Created:
                Updated:

                Development