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  1. MariaDB Server
  2. MDEV-19749

MDL scalability regression after backup locks

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    Details

    • Type: Bug
    • Status: Open (View Workflow)
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 10.4
    • Fix Version/s: 10.6
    • Component/s: Locking
    • Labels:
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      Description

      In 7a9dfdd GLOBAL and COMMIT namespaces were combined into BACKUP, which doubled load on BACKUP lock mutex.

      Can be fixed by implementing something similar to MySQL WL#7306 "Improve MDL performance and scalability by implementing lock-free lock acquisition for DML".

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            Assignee:
            Unassigned
            Reporter:
            svoj Sergey Vojtovich
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              Dates

              Created:
              Updated: