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  1. Kylin
  2. KYLIN-5285

Performance optimization for sharby column

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • v4.0.1
    • v4.0.3
    • Query Engine
    • None

    Description

      使用了shardby,然后通过shardby裁剪到一个文件,该文件只有30多M(但这个cuboid下有17文件),结果查询的时候提交了17个task,只有一个有task在处理数据,其余都在空跑。

      Attachments

        1. screenshot-1.png
          73 kB
          Liu Zhao
        2. image-2022-10-28-20-42-15-822.png
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          Liu Zhao
        3. image-2022-10-28-20-42-01-694.png
          45 kB
          Liu Zhao
        4. image-2022-10-28-20-41-52-544.png
          20 kB
          Liu Zhao
        5. image-2022-10-28-20-41-37-702.png
          62 kB
          Liu Zhao
        6. image-2022-10-28-20-41-27-066.png
          391 kB
          Liu Zhao

        Activity

          People

            zhaoliu4 Liu Zhao
            zhaoliu4 Liu Zhao
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            Dates

              Created:
              Updated:
              Resolved: