SELECT @@GLOBAL.binlog_gtid_simple_recovery; @@GLOBAL.binlog_gtid_simple_recovery 0 SELECT COUNT(@@GLOBAL.binlog_gtid_simple_recovery); COUNT(@@GLOBAL.binlog_gtid_simple_recovery) 1 SELECT COUNT(@@binlog_gtid_simple_recovery); COUNT(@@binlog_gtid_simple_recovery) 1 SELECT @@SESSION.binlog_gtid_simple_recovery; ERROR HY000: Variable 'binlog_gtid_simple_recovery' is a GLOBAL variable SHOW GLOBAL VARIABLES LIKE 'binlog_gtid_simple_recovery'; Variable_name Value binlog_gtid_simple_recovery OFF SHOW SESSION VARIABLES LIKE 'binlog_gtid_simple_recovery'; Variable_name Value binlog_gtid_simple_recovery OFF SELECT * FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='binlog_gtid_simple_recovery'; VARIABLE_NAME VARIABLE_VALUE BINLOG_GTID_SIMPLE_RECOVERY OFF SELECT * FROM INFORMATION_SCHEMA.SESSION_VARIABLES WHERE VARIABLE_NAME='binlog_gtid_simple_recovery'; VARIABLE_NAME VARIABLE_VALUE BINLOG_GTID_SIMPLE_RECOVERY OFF SET GLOBAL binlog_gtid_simple_recovery=1; ERROR HY000: Variable 'binlog_gtid_simple_recovery' is a read only variable SET SESSION binlog_gtid_simple_recovery=1; ERROR HY000: Variable 'binlog_gtid_simple_recovery' is a read only variable