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--source include/have_innodb.inc
--source include/have_log_bin.inc
--let $rpl_topology=1->2,1->3
--source include/rpl_init.inc
--connect (server_2b,127.0.0.1,root,,,$SERVER_MYPORT_2)
--connection server_2
SET @old_parallel_threads=@@GLOBAL.slave_parallel_threads;
SET @old_parallel_mode= @@GLOBAL.slave_parallel_mode;
SET @old_timeout= @@GLOBAL.lock_wait_timeout;
SET @old_innodb_timeout= @@GLOBAL.innodb_lock_wait_timeout;
--source include/stop_slave.inc
SET GLOBAL slave_parallel_threads=5;
set global slave_parallel_mode= aggressive;
# High timeout so we get replication sync error and test failure if the
# conflict handling is insufficient and lock wait timeout occurs.
SET GLOBAL lock_wait_timeout= 86400;
SET GLOBAL innodb_lock_wait_timeout= 86400;
SET STATEMENT sql_log_bin=0 FOR ALTER TABLE mysql.gtid_slave_pos ENGINE=InnoDB;
--source include/start_slave.inc
--connection server_1
CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1, 0), (2, 0), (3, 0), (4, 0), (5, 0), (6, 0), (7, 0), (8, 0);
--save_master_pos
--connection server_2
--sync_with_master
--source include/stop_slave.inc
# Test the following scenario:
#
# Transactions T1, T2 in domain 1, U1, U2 in domain 2.
# Wait cycle T1->U2->U1->T2->T1 as follows:
# T1 row lock wait on U2
# U2 wait_for_prior_commit on U1
# U1 row lock wait on T2
# T2 wait_for_prior_commit on T1
#
# Test that the wait cycle is broken correctly with deadlock kill.
--connection server_2b
# Temporarily block T1 and U1.
BEGIN;
SELECT * FROM t1 WHERE a=1 FOR UPDATE;
SELECT * FROM t1 WHERE a=5 FOR UPDATE;
--connection server_1
SET SESSION gtid_domain_id= 1;
# T1 in domain 1
BEGIN;
UPDATE t1 SET b=1 WHERE a=1;
UPDATE t1 SET b=1 WHERE a=7;
COMMIT;
# T2 in domain 1
UPDATE t1 SET b=2 WHERE a=3;
SET SESSION gtid_domain_id=2;
# U1 in domain 2
BEGIN;
UPDATE t1 SET b=3 WHERE a=5;
UPDATE t1 SET b=3 WHERE a=3;
COMMIT;
# U2 in domain 2
UPDATE t1 SET b=4 WHERE a=7;
SET SESSION gtid_domain_id= 0;
--source include/save_master_gtid.inc
--connection server_2
--source include/start_slave.inc
# Wait until T2, U2 are holding the row locks.
--let $wait_condition= SELECT COUNT(*)=2 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE state LIKE '%Waiting for prior transaction to commit%'
--source include/wait_condition.inc
# Then let T1, U1 continue to conflict on the row locks, and check that
# replication correctly handles the conflict.
--connection server_2b
ROLLBACK;
--connection server_2
--source include/sync_with_master_gtid.inc
# Allow either domain to "win" on the conflicting updates.
SELECT a, (
(a=1 AND b=1) OR
(a=3 AND (b=2 OR b=3)) OR
(a=5 AND b=3) OR
(a=7 AND (b=1 OR b=4)) OR
((a MOD 2)=0 AND b=0)) AS `ok`
FROM t1
ORDER BY a;
# Now try the same thing with multi-source replication.
# Make server_3 a second master
--connection server_3
--source include/sync_with_master_gtid.inc
--source include/stop_slave.inc
--connection server_2
--source include/stop_slave.inc
--replace_result $SERVER_MYPORT_3 MYPORT_3
eval CHANGE MASTER 'm2' to master_port=$SERVER_MYPORT_3 , master_host='127.0.0.1', master_user='root', master_use_gtid=slave_pos;
--connection server_1
SET SESSION gtid_domain_id= 1;
# T1 in domain 1
BEGIN;
UPDATE t1 SET b=11 WHERE a=1;
UPDATE t1 SET b=11 WHERE a=7;
COMMIT;
# T2 in domain 1
UPDATE t1 SET b=12 WHERE a=3;
SET SESSION gtid_domain_id= 1;
--connection server_3
SET SESSION gtid_domain_id=3;
# U1 in domain 3
BEGIN;
UPDATE t1 SET b=13 WHERE a=5;
UPDATE t1 SET b=13 WHERE a=3;
COMMIT;
# U2 in domain 3
UPDATE t1 SET b=14 WHERE a=7;
--source include/save_master_gtid.inc
--connection server_2b
# Temporarily block T1 and U1.
BEGIN;
SELECT * FROM t1 WHERE a=1 FOR UPDATE;
SELECT * FROM t1 WHERE a=5 FOR UPDATE;
START ALL SLAVES;
# Wait until T2, U2 are holding the row locks.
--let $wait_condition= SELECT COUNT(*)=2 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE state LIKE '%Waiting for prior transaction to commit%'
--source include/wait_condition.inc
--connection server_2b
ROLLBACK;
--connection server_1
--source include/save_master_gtid.inc
--connection server_2
--source include/sync_with_master_gtid.inc
--connection server_3
--source include/save_master_gtid.inc
--connection server_2
--source include/sync_with_master_gtid.inc
SELECT a, (
(a=1 AND b=11) OR
(a=3 AND (b=12 OR b=13)) OR
(a=5 AND b=13) OR
(a=7 AND (b=11 OR b=14)) OR
((a MOD 2)=0 AND b=0)) AS `ok`
FROM t1
ORDER BY a;
SET default_master_connection = 'm2';
--source include/stop_slave.inc
RESET SLAVE 'm2' ALL;
SET default_master_connection = '';
--connection server_3
--source include/start_slave.inc
# Cleanup
--disconnect server_2b
--connection server_1
DROP TABLE t1;
--connection server_2
--source include/stop_slave.inc
SET GLOBAL slave_parallel_threads=@old_parallel_threads;
set global slave_parallel_mode= @old_parallel_mode;
SET GLOBAL lock_wait_timeout= @old_timeout;
SET GLOBAL innodb_lock_wait_timeout= @old_innodb_timeout;
--source include/start_slave.inc
--source include/rpl_end.inc
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