MySQL Enterprise Thread Pool Thread Pool Installation as of MySQL 8.0.14 In MySQL 8.0.14 and higher, the thread pool monitoring tables are Performance Schema tables that are loaded and unloaded along with the thread pool plugin. The  INFORMATION_SCHEMA  versions of the tables are deprecated but still available; they are installed per the instructions in Thread Pool Installation Prior to MySQL 8.0.14. To enable thread pool capability, load the plugin by starting the server with the  --plugin-load-add option. To do this, put these lines in the server  my.cnf  file, adjusting the  .so  suffix for your platform as necessary: To verify plugin installation, examine the  INFORMATION_SCHEMA.PLUGINS  table or use the  SHOW PLUGINS  statement (see Section 5.6.2, “Obtaining Server Plugin Information” ). For example: To verify that the Performance Schema monitoring tables are available, examine the INFORMATION_SCHEMA.TABLES  table or use the  SHOW TABLES  statement. For example: If the server loads the thread pool plugin successfully, it sets the  thread_handling  system variable to loaded-dynamically . If the plugin fails to initialize, check the server error log for diagnostic messages. Prior to MySQL 8.0.14, the thread pool monitoring tables are plugins separate from the thread pool plugin and can be installed separately. To enable thread pool capability, load the plugins to be used by starting the server with the  --plugin- load-add  option. For example, if you name only the plugin library file, the server loads all plugins that it contains (that is, the thread pool plugin and all the  INFORMATION_SCHEMA  tables). To do this, put these lines in the server  my.cnf  file, adjusting the  .so  suffix for your platform as necessary: That is equivalent to loading all thread pool plugins by naming them individually: 1081 [mysqld] plugin-load-add=thread_pool.so mysql>  SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = ’performance_schema’ AND TABLE_NAME LIKE ’tp%’; +-----------------------+ | TABLE_NAME | +-----------------------+ | tp_thread_group_state | | tp_thread_group_stats | | tp_thread_state | +-----------------------+ Thread Pool Installation Prior to MySQL 8.0.14 mysql>  SELECT PLUGIN_NAME, PLUGIN_STATUS FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME LIKE ’thread%’; +-----------------------+---------------+ | PLUGIN_NAME | PLUGIN_STATUS | +-----------------------+---------------+ | thread_pool | ACTIVE | +-----------------------+---------------+ [mysqld] plugin-load-add=thread_pool.so