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