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  1. MariaDB Server
  2. MDEV-6931

Page cleaner should do LRU flushing regardless of server activity

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    Description

      This is fix for upstream bug
      http://bugs.mysql.com/bug.php?id=71988
      http://bugs.mysql.com/bug.php?id=70500

      page_cleaner should work whether or not there is server activity.
      Its iterations become a noop when there is no work to do but we
      should not tie it to the server activity.

      The page_cleaner thread does spurious background flushing
      because of conditional sleep between iterations. The solution
      is not to make sleep dependent on server activity etc.

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          is part of

          Task - A task that needs to be done. MDEV-6039 WebScaleSQL patches

          • Major - Major loss of function.
          • Closed

          Activity

            jplindst Jan Lindström (Inactive) added a comment -

            revno: 4456
            committer: Jan Lindström <jplindst@mariadb.org>
            branch nick: 10.0-innodb
            timestamp: Fri 2014-10-24 18:58:04 +0300
            message:
            MDEV-6931: Page cleaner should do LRU flushing regardless of server activity

            Merge Facebook commit 926a077b14b73c14094de7fc7aa913241b801b4d
            authored by Inaam Rana from https://github.com/facebook/mysql-5.6.

            This is fix for upstream bugs
            http://bugs.mysql.com/bug.php?id=71988
            http://bugs.mysql.com/bug.php?id=70500

            page_cleaner should work whether or not there is server activity.
            Its iterations become a noop when there is no work to do but we
            should not tie it to the server activity.

            The page_cleaner thread does spurious background flushing
            because of conditional sleep between iterations. The solution
            is not to make sleep dependent on server activity etc.

            jplindst Jan Lindström (Inactive) added a comment - revno: 4456 committer: Jan Lindström <jplindst@mariadb.org> branch nick: 10.0-innodb timestamp: Fri 2014-10-24 18:58:04 +0300 message: MDEV-6931 : Page cleaner should do LRU flushing regardless of server activity Merge Facebook commit 926a077b14b73c14094de7fc7aa913241b801b4d authored by Inaam Rana from https://github.com/facebook/mysql-5.6 . This is fix for upstream bugs http://bugs.mysql.com/bug.php?id=71988 http://bugs.mysql.com/bug.php?id=70500 page_cleaner should work whether or not there is server activity. Its iterations become a noop when there is no work to do but we should not tie it to the server activity. The page_cleaner thread does spurious background flushing because of conditional sleep between iterations. The solution is not to make sleep dependent on server activity etc.

            People

              jplindst Jan Lindström (Inactive)
              jplindst Jan Lindström (Inactive)
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