CREATE TABLE t (
`a` INT NOT NULL,
`b` INT NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=InnoDB;
SET GLOBAL innodb_limit_optimistic_insert_debug = 3;
INSERT INTO t VALUES(10, 0);
INSERT INTO t VALUES(20, 0);
INSERT INTO t VALUES(30, 0);
SET TRANSACTION ISOLATION LEVEL READ COMMITTED;
XA START '1';
REPLACE INTO t VALUES(10, 1);
REPLACE INTO t VALUES(20, 1);
SET DEBUG_SYNC= 'ib_after_row_insert SIGNAL inserted WAIT_FOR cont';
REPLACE INTO t VALUES(30, 1);
connect  con1,localhost,root;
SET TRANSACTION ISOLATION LEVEL READ COMMITTED;
XA START '2';
SET DEBUG_SYNC= 'now WAIT_FOR inserted';
INSERT INTO t VALUES(40, 2);
SET DEBUG_SYNC= 'now SIGNAL cont';
connection default;
XA END '1';
XA PREPARE '1';
connection default;
XA COMMIT '1';
connection con1;
XA END '2';
XA PREPARE '2';
XA COMMIT '2';
disconnect con1;
connection default;
SET DEBUG_SYNC= "RESET";
DROP TABLE t;