connection node_2;
connection node_1;
select @@slave_connections_needed_for_purge;
@@slave_connections_needed_for_purge
0
select VARIABLE_NAME, GLOBAL_VALUE, GLOBAL_VALUE_ORIGIN from information_schema.system_variables where variable_name="slave_connections_needed_for_purge";
VARIABLE_NAME	GLOBAL_VALUE	GLOBAL_VALUE_ORIGIN
SLAVE_CONNECTIONS_NEEDED_FOR_PURGE	0	AUTO
USE test;
CREATE TABLE t1(c1 INT PRIMARY KEY) ENGINE=INNODB;
INSERT INTO t1 VALUES (1), (2), (3), (4), (5);
SELECT * FROM t1;
c1
1
2
3
4
5

# On node_1
connection node_1;
SELECT * FROM test.t1;
c1
1
2
3
4
5

# On node_2
connection node_2;
SELECT * FROM test.t1;
c1
1
2
3
4
5
DROP TABLE t1;
disconnect node_2;
disconnect node_1;
# End of test