select @@global.ignore_builtin_innodb; @@global.ignore_builtin_innodb 0 select @@session.ignore_builtin_innodb; ERROR HY000: Variable 'ignore_builtin_innodb' is a GLOBAL variable show global variables like 'ignore_builtin_innodb'; Variable_name Value ignore_builtin_innodb OFF show session variables like 'ignore_builtin_innodb'; Variable_name Value ignore_builtin_innodb OFF select * from information_schema.global_variables where variable_name='ignore_builtin_innodb'; VARIABLE_NAME VARIABLE_VALUE IGNORE_BUILTIN_INNODB OFF select * from information_schema.session_variables where variable_name='ignore_builtin_innodb'; VARIABLE_NAME VARIABLE_VALUE IGNORE_BUILTIN_INNODB OFF set global ignore_builtin_innodb=1; ERROR HY000: Variable 'ignore_builtin_innodb' is a read only variable set session ignore_builtin_innodb=1; ERROR HY000: Variable 'ignore_builtin_innodb' is a read only variable