1select @@global.rpl_semi_sync_master_wait_point; 2@@global.rpl_semi_sync_master_wait_point 3AFTER_COMMIT 4SET @start_global_value = @@global.rpl_semi_sync_master_wait_point; 5select @@session.rpl_semi_sync_master_wait_point; 6ERROR HY000: Variable 'rpl_semi_sync_master_wait_point' is a GLOBAL variable 7show global variables like 'rpl_semi_sync_master_wait_point'; 8Variable_name Value 9rpl_semi_sync_master_wait_point AFTER_COMMIT 10show session variables like 'rpl_semi_sync_master_wait_point'; 11Variable_name Value 12rpl_semi_sync_master_wait_point AFTER_COMMIT 13select * from information_schema.global_variables where variable_name='rpl_semi_sync_master_wait_point'; 14VARIABLE_NAME VARIABLE_VALUE 15RPL_SEMI_SYNC_MASTER_WAIT_POINT AFTER_COMMIT 16select * from information_schema.session_variables where variable_name='rpl_semi_sync_master_wait_point'; 17VARIABLE_NAME VARIABLE_VALUE 18RPL_SEMI_SYNC_MASTER_WAIT_POINT AFTER_COMMIT 19set global rpl_semi_sync_master_wait_point=AFTER_SYNC; 20set session rpl_semi_sync_master_wait_point=AFTER_COMMIT; 21ERROR HY000: Variable 'rpl_semi_sync_master_wait_point' is a GLOBAL variable and should be set with SET GLOBAL 22select @@global.rpl_semi_sync_master_wait_point; 23@@global.rpl_semi_sync_master_wait_point 24AFTER_SYNC 25select @@session.rpl_semi_sync_master_wait_point; 26ERROR HY000: Variable 'rpl_semi_sync_master_wait_point' is a GLOBAL variable 27show global variables like 'rpl_semi_sync_master_wait_point'; 28Variable_name Value 29rpl_semi_sync_master_wait_point AFTER_SYNC 30show session variables like 'rpl_semi_sync_master_wait_point'; 31Variable_name Value 32rpl_semi_sync_master_wait_point AFTER_SYNC 33select * from information_schema.global_variables where variable_name='rpl_semi_sync_master_wait_point'; 34VARIABLE_NAME VARIABLE_VALUE 35RPL_SEMI_SYNC_MASTER_WAIT_POINT AFTER_SYNC 36select * from information_schema.session_variables where variable_name='rpl_semi_sync_master_wait_point'; 37VARIABLE_NAME VARIABLE_VALUE 38RPL_SEMI_SYNC_MASTER_WAIT_POINT AFTER_SYNC 39set global rpl_semi_sync_master_wait_point=1.1; 40ERROR 42000: Incorrect argument type to variable 'rpl_semi_sync_master_wait_point' 41set global rpl_semi_sync_master_wait_point=1e1; 42ERROR 42000: Incorrect argument type to variable 'rpl_semi_sync_master_wait_point' 43SET @@global.rpl_semi_sync_master_wait_point = @start_global_value; 44select @@global.rpl_semi_sync_master_wait_point; 45@@global.rpl_semi_sync_master_wait_point 46AFTER_COMMIT 47