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INSTALL PLUGIN rpl_semi_sync_slave SONAME 'semisync_slave.so';
select @@global.rpl_semi_sync_slave_enabled;
@@global.rpl_semi_sync_slave_enabled
0
SET @start_global_value = @@global.rpl_semi_sync_slave_enabled;
select @@global.rpl_semi_sync_slave_enabled in (0,1);
@@global.rpl_semi_sync_slave_enabled in (0,1)
1
select @@session.rpl_semi_sync_slave_enabled;
ERROR HY000: Variable 'rpl_semi_sync_slave_enabled' is a GLOBAL variable
show global variables like 'rpl_semi_sync_slave_enabled';
Variable_name Value
rpl_semi_sync_slave_enabled OFF
show session variables like 'rpl_semi_sync_slave_enabled';
Variable_name Value
rpl_semi_sync_slave_enabled OFF
select * from information_schema.global_variables where variable_name='rpl_semi_sync_slave_enabled';
VARIABLE_NAME VARIABLE_VALUE
RPL_SEMI_SYNC_SLAVE_ENABLED OFF
select * from information_schema.session_variables where variable_name='rpl_semi_sync_slave_enabled';
VARIABLE_NAME VARIABLE_VALUE
RPL_SEMI_SYNC_SLAVE_ENABLED OFF
set global rpl_semi_sync_slave_enabled=0;
set session rpl_semi_sync_slave_enabled=0;
ERROR HY000: Variable 'rpl_semi_sync_slave_enabled' is a GLOBAL variable and should be set with SET GLOBAL
select @@global.rpl_semi_sync_slave_enabled;
@@global.rpl_semi_sync_slave_enabled
0
select @@session.rpl_semi_sync_slave_enabled;
ERROR HY000: Variable 'rpl_semi_sync_slave_enabled' is a GLOBAL variable
show global variables like 'rpl_semi_sync_slave_enabled';
Variable_name Value
rpl_semi_sync_slave_enabled OFF
show session variables like 'rpl_semi_sync_slave_enabled';
Variable_name Value
rpl_semi_sync_slave_enabled OFF
select * from information_schema.global_variables where variable_name='rpl_semi_sync_slave_enabled';
VARIABLE_NAME VARIABLE_VALUE
RPL_SEMI_SYNC_SLAVE_ENABLED OFF
select * from information_schema.session_variables where variable_name='rpl_semi_sync_slave_enabled';
VARIABLE_NAME VARIABLE_VALUE
RPL_SEMI_SYNC_SLAVE_ENABLED OFF
set global rpl_semi_sync_slave_enabled=1;
set session rpl_semi_sync_slave_enabled=1;
ERROR HY000: Variable 'rpl_semi_sync_slave_enabled' is a GLOBAL variable and should be set with SET GLOBAL
select @@global.rpl_semi_sync_slave_enabled;
@@global.rpl_semi_sync_slave_enabled
1
select @@session.rpl_semi_sync_slave_enabled;
ERROR HY000: Variable 'rpl_semi_sync_slave_enabled' is a GLOBAL variable
show global variables like 'rpl_semi_sync_slave_enabled';
Variable_name Value
rpl_semi_sync_slave_enabled ON
show session variables like 'rpl_semi_sync_slave_enabled';
Variable_name Value
rpl_semi_sync_slave_enabled ON
select * from information_schema.global_variables where variable_name='rpl_semi_sync_slave_enabled';
VARIABLE_NAME VARIABLE_VALUE
RPL_SEMI_SYNC_SLAVE_ENABLED ON
select * from information_schema.session_variables where variable_name='rpl_semi_sync_slave_enabled';
VARIABLE_NAME VARIABLE_VALUE
RPL_SEMI_SYNC_SLAVE_ENABLED ON
set global rpl_semi_sync_slave_enabled=1.1;
ERROR 42000: Incorrect argument type to variable 'rpl_semi_sync_slave_enabled'
set global rpl_semi_sync_slave_enabled=1e1;
ERROR 42000: Incorrect argument type to variable 'rpl_semi_sync_slave_enabled'
set global rpl_semi_sync_slave_enabled="some text";
ERROR 42000: Variable 'rpl_semi_sync_slave_enabled' can't be set to the value of 'some text'
SET @@global.rpl_semi_sync_slave_enabled = @start_global_value;
select @@global.rpl_semi_sync_slave_enabled;
@@global.rpl_semi_sync_slave_enabled
0
UNINSTALL PLUGIN rpl_semi_sync_slave;
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