HBase
  1. HBase
  2. HBASE-4907 Port 89-fb changes to trunk
  3. HBASE-4914

Enhance MapReduce TableInputFormat to Support N-mappers per Region

    Details

    • Type: Sub-task Sub-task
    • Status: Open
    • Priority: Major Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Client, regionserver
    • Labels:
      None

      Description

      Current TableInputFormat based MR jobs create exactly one mapper per region where each mapper sets one Scan with appropriate start/stop row keys. This change allows jobs to be run with any number of mappers per region, so that when a mapper fails, there will be less data to be reprocessed.

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            • Assignee:
              Unassigned
              Reporter:
              Nicolas Spiegelberg
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              Dates

              • Created:
                Updated:

                Development