SET SESSION slave_parallel_mode= none;
ERROR HY000: Variable 'slave_parallel_mode' is a GLOBAL variable and should be set with SET GLOBAL
SELECT @@slave_parallel_mode;
@@slave_parallel_mode
minimal
SELECT @@m1.slave_parallel_mode;
@@m1.slave_parallel_mode
NULL
Warnings:
Warning	1617	There is no master connection 'm1'
Warning	1617	There is no master connection 'm1'
CHANGE MASTER TO master_host='127.0.0.1', master_port=3310, master_user='root';
SELECT @@``.slave_parallel_mode;
@@``.slave_parallel_mode
minimal
SELECT @@slave_parallel_mode;
@@slave_parallel_mode
minimal
Parallel_Mode = 'minimal'
SELECT @@m2.slave_parallel_mode;
@@m2.slave_parallel_mode
NULL
Warnings:
Warning	1617	There is no master connection 'm2'
Warning	1617	There is no master connection 'm2'
SET GLOBAL m2.slave_parallel_mode = none;
Warnings:
Warning	1617	There is no master connection 'm2'
CHANGE MASTER 'm1' TO master_host='127.0.0.1', master_port=3311, master_user='root';
SELECT @@m1.slave_parallel_mode;
@@m1.slave_parallel_mode
optimistic
Parallel_Mode = 'minimal'
SET GLOBAL m1.slave_parallel_mode= conservative;
Parallel_Mode = 'minimal'
SET default_master_connection= 'm1';
SELECT @@slave_parallel_mode;
@@slave_parallel_mode
conservative
SET GLOBAL slave_parallel_mode= aggressive;
SELECT @@slave_parallel_mode;
@@slave_parallel_mode
aggressive
Parallel_Mode = 'aggressive'
SET default_master_connection= '';
SELECT @@slave_parallel_mode;
@@slave_parallel_mode
minimal
RESET SLAVE ALL;
RESET SLAVE 'm1' ALL;