Uploaded image for project: 'Spark'
  1. Spark
  2. SPARK-9850 Adaptive execution in Spark
  3. SPARK-11733

Allow shuffle readers to request data from just one mapper

    XMLWordPrintableJSON

    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Incomplete
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Spark Core, SQL
    • Labels:

      Description

      This is needed to do broadcast joins. Right now the shuffle reader interface takes a range of reduce IDs but fetches from all maps.

        Attachments

          Activity

            People

            • Assignee:
              Unassigned
              Reporter:
              matei Matei Alexandru Zaharia
            • Votes:
              0 Vote for this issue
              Watchers:
              7 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: