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  1. MariaDB ColumnStore
  2. MCOL-5460

concurrent CTE operation excessive mutex

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Critical
    • Resolution: Cannot Reproduce
    • 23.02.1
    • N/A
    • installation
    • 2023-8, 2023-10, 2023-11, 2023-12, 2024-1, 2024-2, 2025-9

    Attachments

      1. Columnstore-CTE-Test-Results.zip
        8 kB
      2. CTE1-23_10_0.png
        CTE1-23_10_0.png
        127 kB
      3. CTE1-3-patches.png
        CTE1-3-patches.png
        104 kB
      4. CTE2-23_10_0.png
        CTE2-23_10_0.png
        135 kB
      5. CTE2-3-patches.png
        CTE2-3-patches.png
        120 kB
      6. CTE3-23_10_0.png
        CTE3-23_10_0.png
        99 kB
      7. CTE3-3-patches_2.png
        CTE3-3-patches_2.png
        104 kB
      8. CTE3-3-patches.png
        CTE3-3-patches.png
        97 kB
      9. screenshot-1.png
        screenshot-1.png
        174 kB
      10. screenshot-2.png
        screenshot-2.png
        182 kB
      11. screenshot-3.png
        screenshot-3.png
        202 kB
      12. screenshot-4.png
        screenshot-4.png
        196 kB

      Issue Links

        includes

        Bug - A problem which impairs or prevents the functions of the product. MCOL-5472 CPU wastes time in wait and sys b/c of urandom access in RowStorage.

        • Blocker - Blocks development and/or testing work, production could not run.
        • Closed

        New Feature - A new feature of the product, which has yet to be developed. MCOL-5473 Mutex lock contention doing VSS lookup loading a block

        • Major - Major loss of function.
        • Closed

        New Feature - A new feature of the product, which has yet to be developed. MCOL-5474 Mutex lock contention doing block cache lookup when loading a block

        • Major - Major loss of function.
        • Closed

        Bug - A problem which impairs or prevents the functions of the product. MCOL-5601 Config::makeConfig bottlenecks on a mutex contributing to CPU burned in sys

        • Major - Major loss of function.
        • Closed

        Activity

          People

            drrtuy Roman
            alexey.vorovich alexey vorovich (Inactive)
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            1 Vote for this issue
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            10 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

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