EVOLUTION-MANAGER

Edit File: galera_mdl_race.result

CREATE TABLE t1 (f1 INTEGER PRIMARY KEY, f2 CHAR(1)) engine=innodb;
CREATE TABLE t2 (f1 INTEGER PRIMARY KEY, f2 CHAR(1)) engine=innodb;
INSERT INTO t1 VALUES (1, 'a');
INSERT INTO t1 VALUES (2, 'a');
connection node_1;
SET AUTOCOMMIT=ON;
START TRANSACTION;
UPDATE t1 SET f2 = 'b' WHERE f1 = 1;
connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1;
connection node_1a;
LOCK TABLE t2 WRITE;
connection node_1;
SET @@debug_dbug = "d,sync.wsrep_before_mdl_wait";
SELECT * FROM t2;;
connection node_1a;
SET @@debug_dbug = "d,sync.wsrep_after_BF_victim_lock";
connection node_2;
UPDATE t1 SET f2 = 'c' WHERE f1 = 1;
connection node_1a;
SET @@debug_dbug = "";
SET DEBUG_SYNC = "now SIGNAL signal.wsrep_before_mdl_wait";
SET DEBUG_SYNC = "now SIGNAL signal.wsrep_after_BF_victim_lock";
UNLOCK TABLES;
connection node_1;
ERROR 40001: Deadlock: wsrep aborted transaction
SELECT COUNT(*) = 1 FROM t1 WHERE f2 = 'a';
COUNT(*) = 1
1
SELECT COUNT(*) = 1 FROM t1 WHERE f2 = 'c';
COUNT(*) = 1
1
connection node_2;
SELECT COUNT(*) = 1 FROM t1 WHERE f2 = 'a';
COUNT(*) = 1
1
SELECT COUNT(*) = 1 FROM t1 WHERE f2 = 'c';
COUNT(*) = 1
1
DROP TABLE t1;
DROP TABLE t2;
connection node_1a;
SET DEBUG_SYNC = "RESET";