connect  slave1,127.0.0.1,root,,,$SERVER_MYPORT_3;
connect  master1,127.0.0.1,root,,,$SERVER_MYPORT_1;
connect  master2,127.0.0.1,root,,,$SERVER_MYPORT_2;
connection slave1;
CHANGE MASTER 'slave1' TO master_port=MYPORT_1, master_host='127.0.0.1', master_user='root', master_ssl_verify_server_cert=0, master_use_gtid=slave_pos;
CHANGE MASTER 'slave2' TO master_port=MYPORT_2, master_host='127.0.0.1', master_user='root', master_ssl_verify_server_cert=0, master_use_gtid=slave_pos;
set default_master_connection = 'slave1';
START SLAVE;
include/wait_for_slave_to_start.inc
set default_master_connection = 'slave2';
START SLAVE;
include/wait_for_slave_to_start.inc
set default_master_connection = '';
connection master1;
SET GLOBAL gtid_domain_id= 1;
SET SESSION gtid_domain_id= 1;
CREATE TABLE t3 (a INT PRIMARY KEY, b VARCHAR(10)) ENGINE=InnoDB;
CREATE TABLE t1 (a INT PRIMARY KEY, b VARCHAR(10));
INSERT INTO t1 VALUES (1, "initial");
INSERT INTO t3 VALUES (101, "initial 1");
include/save_master_gtid.inc
connection master2;
SET GLOBAL gtid_domain_id= 2;
SET SESSION gtid_domain_id= 2;
CREATE TABLE t2 (a INT PRIMARY KEY, b VARCHAR(10)) ENGINE=InnoDB;
INSERT INTO t2 VALUES (1, "initial");
connection slave1;
include/sync_with_master_gtid.inc
connection master2;
include/save_master_gtid.inc
connection slave1;
include/sync_with_master_gtid.inc
*** Add an innodb gtid_slave_pos table. It is not used yet as slaves are already running ***
SET sql_log_bin=0;
CREATE TABLE mysql.gtid_slave_pos_innodb LIKE mysql.gtid_slave_pos;
ALTER TABLE mysql.gtid_slave_pos_innodb ENGINE=InnoDB;
SET sql_log_bin=0;
connection master1;
INSERT INTO t3 VALUES (102, "secondary");
include/save_master_gtid.inc
connection slave1;
include/sync_with_master_gtid.inc
SELECT domain_id, max(seq_no) FROM mysql.gtid_slave_pos GROUP BY domain_id;
domain_id	max(seq_no)
1	5
2	2
SELECT domain_id, max(seq_no) FROM mysql.gtid_slave_pos_innodb GROUP BY domain_id;
domain_id	max(seq_no)
*** Restart one slave thread, the other keeps running. Now the new table is used ***
connection slave1;
set default_master_connection = 'slave1';
STOP SLAVE;
include/wait_for_slave_to_stop.inc
START SLAVE;
include/wait_for_slave_to_start.inc
connection master1;
INSERT INTO t1 VALUES (2, "followup");
include/save_master_gtid.inc
connection slave1;
include/sync_with_master_gtid.inc
connection master2;
INSERT INTO t2 VALUES (2, "secondary2");
include/save_master_gtid.inc
connection slave1;
include/sync_with_master_gtid.inc
SELECT domain_id, max(seq_no) FROM mysql.gtid_slave_pos GROUP BY domain_id;
domain_id	max(seq_no)
1	6
2	2
SELECT domain_id, max(seq_no) FROM mysql.gtid_slave_pos_innodb GROUP BY domain_id;
domain_id	max(seq_no)
2	3
*** Remove a gtid_slave_posXXX table, restart one slave ***
*** Get a warning that the change is not yet picked up ***
*** See that updates fail due to trying to use the missing table ***
connection slave1;
SET sql_log_bin=0;
DROP TABLE mysql.gtid_slave_pos_innodb;
SET sql_log_bin=1;
set default_master_connection = 'slave2';
STOP SLAVE;
include/wait_for_slave_to_stop.inc
START SLAVE;
include/wait_for_slave_to_start.inc
CALL mtr.add_suppression("The table mysql.gtid_slave_pos_innodb was removed.");
connection master2;
INSERT INTO t2 VALUES (3, "tertiary 2");
connection slave1;
include/wait_for_slave_sql_error.inc [errno=1942]
SELECT domain_id, max(seq_no) FROM mysql.gtid_slave_pos GROUP BY domain_id;
domain_id	max(seq_no)
1	6
2	2
*** Stop both slaves, see that the drop of mysql.gtid_slave_pos_innodb is now picked up ***
connection slave1;
set default_master_connection = 'slave1';
STOP SLAVE;
include/wait_for_slave_to_stop.inc
set default_master_connection = 'slave2';
include/wait_for_slave_sql_error.inc [errno=1942]
STOP SLAVE;
include/wait_for_slave_io_to_stop.inc
set default_master_connection = 'slave1';
START SLAVE;
include/wait_for_slave_to_start.inc
connection master1;
INSERT INTO t1 VALUES (3, "more stuff");
include/save_master_gtid.inc
connection slave1;
include/sync_with_master_gtid.inc
set default_master_connection = 'slave2';
START SLAVE;
include/wait_for_slave_to_start.inc
connection master2;
include/save_master_gtid.inc
connection slave1;
include/sync_with_master_gtid.inc
SELECT * FROM t1 ORDER BY a;
a	b
1	initial
2	followup
3	more stuff
SELECT * FROM t2 ORDER BY a;
a	b
1	initial
2	secondary2
3	tertiary 2
SELECT * FROM t3 ORDER BY a;
a	b
101	initial 1
102	secondary
SELECT domain_id, max(seq_no) FROM mysql.gtid_slave_pos GROUP BY domain_id;
domain_id	max(seq_no)
1	7
2	4
connection master1;
DROP TABLE t1;
DROP TABLE t3;
connection master2;
DROP TABLE t2;
connection slave1;
SET GLOBAL gtid_domain_id=0;
STOP ALL SLAVES;
Warnings:
Note	1938	SLAVE 'slave1' stopped
Note	1938	SLAVE 'slave2' stopped
include/reset_master_slave.inc
disconnect slave1;
connection master1;
SET GLOBAL gtid_domain_id=0;
include/reset_master_slave.inc
disconnect master1;
connection master2;
SET GLOBAL gtid_domain_id=0;
include/reset_master_slave.inc
disconnect master2;