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