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  1. MariaDB Server
  2. MDEV-22593

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

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      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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          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

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              svoj Sergey Vojtovich
              svoj Sergey Vojtovich
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