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  1. MariaDB Server
  2. MDEV-22680

InnoDB trx_sys improvements

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    • InnoDB trx_sys improvements

    Description

      This issue is created for tracking a few remaining/discovered issues after the big InnoDB trx_sys refactoring.

      The following don't yet have corresponding jira task:

      • decouple ReadView::m_low_limit_no - only used by purge, regular views should not have to snapshot it
      • optimise busy waiting in trx_sys_t::snapshot_ids() - it is quite high in profile already

      Attachments

        Issue Links

          is caused by

          Task - A task that needs to be done. MDEV-14638 Replace trx_sys_t::rw_trx_set with LF_HASH

          • Major - Major loss of function.
          • Closed

          Task - A task that needs to be done. MDEV-14756 Remove trx_sys_t::rw_trx_list

          • Major - Major loss of function.
          • Closed

          Task - A task that needs to be done. MDEV-15019 InnoDB: store ReadView on trx

          • Major - Major loss of function.
          • Closed

          Task - A task that needs to be done. MDEV-15059 Misc small InnoDB scalability fixes

          • Major - Major loss of function.
          • Closed

          Task - A task that needs to be done. MDEV-15104 Remove trx_sys_t::rw_trx_ids and trx_sys_t::serialisation_list

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-15246 InnoDB: Unknown error code 20: Required history data has been deleted

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

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            People

              marko Marko Mäkelä
              svoj Sergey Vojtovich
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              Dates

                Created:
                Updated:

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