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  1. MariaDB Server
  2. MDEV-26520

Make innodb_purge_threads settable without server restart

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      To enable better control of the InnoDB purge subsystem, it would be good if the maximum number of purge tasks were settable by the user while the server is running:

      SET GLOBAL innodb_purge_threads=1;
      # run a heavy workload
      # let the history be discarded faster while the server is less busy
      SET GLOBAL innodb_purge_threads=32;
      

      Independently of this, MDEV-16260 or MDEV-26356 may improve the way how the purge threads are scheduled. This task would only make the maximum number of concurrent purge tasks configurable.

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              wlad Vladislav Vaintroub
              marko Marko Mäkelä
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