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  1. MariaDB Server
  2. MDEV-22593

InnoDB: don't take trx_sys.mutex in ReadView::open()

Details

    Description

      This is something that wasn't addressed during the large trx_sys refactoring. Taking trx_sys.mutex is bad for 2 reasons:

      • it is not intended for synchronisation between purge and connection threads
      • it is a global mutex on a hot-path that can be avoided.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-29612 ReadViewBase::snapshot() misses an optimization

          • Major - Major loss of function.
          • Closed

          Activity

            Transition Time In Source Status Execution Times
            Sergey Vojtovich made transition -
            Open Confirmed
            		11s 1
            Sergey Vojtovich made transition -
            Confirmed In Review
            		1h 47m 1
            Marko Mäkelä made transition -
            In Review Stalled
            		8d 23h 43m 1
            Sergey Vojtovich made transition -
            Stalled Closed
            		1d 1h 31m 1

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              svoj Sergey Vojtovich
              svoj Sergey Vojtovich
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              Dates

                Created:
                Updated:
                Resolved:

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