Uploaded image for project: 'Spark'
  1. Spark
  2. SPARK-37063 SQL Adaptive Query Execution QA: Phase 2
  3. SPARK-38406

Improve perfermance of ShufflePartitionsUtil createSkewPartitionSpecs

Attach filesAttach ScreenshotVotersWatch issueWatchersLinkCloneUpdate Comment AuthorReplace String in CommentUpdate Comment VisibilityDelete Comments
    XMLWordPrintableJSON

Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 3.3.0
    • 3.3.0
    • SQL
    • None

    Description

      If shuffle is skewed with tens of thousands of map partitions and reduce partitions in AQE, the method `ShufflePartitionsUtil#createSkewPartitionSpecs` will be very slow. More unfortunately, it is running at driver side.

       

      Attachments

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

          People

            ulysses XiDuo You
            ulysses XiDuo You
            Votes:
            0 Vote for this issue
            Watchers:
            5 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Slack

                Issue deployment