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# # MDEV-21966 Bind REPLICATION SLAVE ADMIN to a number of global system variables # SET @global=@@global.slave_parallel_workers; # Test that "SET slave_parallel_workers" is not allowed without REPLICATION SLAVE ADMIN or SUPER CREATE USER user1@localhost; GRANT ALL PRIVILEGES ON *.* TO user1@localhost; REVOKE REPLICATION SLAVE ADMIN, SUPER ON *.* FROM user1@localhost; connect user1,localhost,user1,,; connection user1; SET GLOBAL slave_parallel_workers=256; ERROR 42000: Access denied; you need (at least one of) the SUPER, REPLICATION SLAVE ADMIN privilege(s) for this operation SET slave_parallel_workers=256; ERROR HY000: Variable 'slave_parallel_workers' is a GLOBAL variable and should be set with SET GLOBAL SET SESSION slave_parallel_workers=256; ERROR HY000: Variable 'slave_parallel_workers' is a GLOBAL variable and should be set with SET GLOBAL disconnect user1; connection default; DROP USER user1@localhost; # Test that "SET slave_parallel_workers" is allowed with REPLICATION SLAVE ADMIN CREATE USER user1@localhost; GRANT REPLICATION SLAVE ADMIN ON *.* TO user1@localhost; connect user1,localhost,user1,,; connection user1; SET GLOBAL slave_parallel_workers=256; SET slave_parallel_workers=256; ERROR HY000: Variable 'slave_parallel_workers' is a GLOBAL variable and should be set with SET GLOBAL SET SESSION slave_parallel_workers=256; ERROR HY000: Variable 'slave_parallel_workers' is a GLOBAL variable and should be set with SET GLOBAL disconnect user1; connection default; DROP USER user1@localhost; # Test that "SET slave_parallel_workers" is allowed with SUPER CREATE USER user1@localhost; GRANT SUPER ON *.* TO user1@localhost; connect user1,localhost,user1,,; connection user1; SET GLOBAL slave_parallel_workers=256; SET slave_parallel_workers=256; ERROR HY000: Variable 'slave_parallel_workers' is a GLOBAL variable and should be set with SET GLOBAL SET SESSION slave_parallel_workers=256; ERROR HY000: Variable 'slave_parallel_workers' is a GLOBAL variable and should be set with SET GLOBAL disconnect user1; connection default; DROP USER user1@localhost; SET @@global.slave_parallel_workers=@global;