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  1. MariaDB Server
  2. MDEV-17481

mariadb service won't shutdown when it's running and the OS datetime updated backwards

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    Description

      When I update the OS datetime *backwards* while `mariadb` is running, it causes `mariadb` to hang when I command it's service to stop.
      I've also noticed that this doesn't occur when I set the new OS datetime value to be grater than the current OS datetime, only backwards causes the hang.

      —

      Steps to reproduce: 

       
      		 
          sudo date --set="2018-10-04 20:00:00"
      		 
       
      		 
          sudo service mysql start
      		 
           * Starting MariaDB database server mysqld [ OK ]
      		 
       
      		 
          sudo service mysql stop
      		 
           * Stopping MariaDB database server mysqld [ OK ]
      		 
       
      		 
          sudo service mysql start
      		 
           * Starting MariaDB database server mysqld [ OK ]
      		 
       
      		 
          sudo date --set="2018-10-04 10:00:00"
      		 
       
      		 
          sudo service mysql stop
      		 
           * Stopping MariaDB database server mysqld

      > setting the date, starting the service, resetting the date -10 hours, stopping the service => hang

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          duplicates

          Bug - A problem which impairs or prevents the functions of the product. MDEV-20078 When setting back the system time while mysqld is running, shutdown will hang

          • Major - Major loss of function.
          • Closed
          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. MDEV-20598 Server slow to shutdown if system time goes backwards

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

          Bug - A problem which impairs or prevents the functions of the product. MDEV-22789 MariaDB fails to stop on OS shutdown

          • Major - Major loss of function.
          • Closed
          relates to

          Task - A task that needs to be done. MDEV-16526 Overhaul the InnoDB page flushing

          • Major - Major loss of function.
          • Closed

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              thiru Thirunarayanan Balathandayuthapani
              jossef Jossef Harush
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