1select @@global.binlog_optimize_thread_scheduling;
2@@global.binlog_optimize_thread_scheduling
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4select @@session.binlog_optimize_thread_scheduling;
5ERROR HY000: Variable 'binlog_optimize_thread_scheduling' is a GLOBAL variable
6show global variables like 'binlog_optimize_thread_scheduling';
7Variable_name	Value
8binlog_optimize_thread_scheduling	ON
9show session variables like 'binlog_optimize_thread_scheduling';
10Variable_name	Value
11binlog_optimize_thread_scheduling	ON
12select * from information_schema.global_variables where variable_name='binlog_optimize_thread_scheduling';
13VARIABLE_NAME	VARIABLE_VALUE
14BINLOG_OPTIMIZE_THREAD_SCHEDULING	ON
15select * from information_schema.session_variables where variable_name='binlog_optimize_thread_scheduling';
16VARIABLE_NAME	VARIABLE_VALUE
17BINLOG_OPTIMIZE_THREAD_SCHEDULING	ON
18set global binlog_optimize_thread_scheduling=1;
19ERROR HY000: Variable 'binlog_optimize_thread_scheduling' is a read only variable
20set session binlog_optimize_thread_scheduling=1;
21ERROR HY000: Variable 'binlog_optimize_thread_scheduling' is a read only variable
22