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  1. MariaDB Server
  2. MDEV-6931

Page cleaner should do LRU flushing regardless of server activity

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

                • Major - Major loss of function.
                • Closed

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                  jplindst Jan Lindström 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.

                  Show
                  jplindst Jan Lindström 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.

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                    • Assignee:
                      jplindst Jan Lindström
                      Reporter:
                      jplindst Jan Lindström
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                        Updated:
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