config root man

#
# BUG#19316315 CRASH RECOVERY FAILS AFTER ONLINE ADD INDEX
#
CREATE TABLE t1 (c1 INT PRIMARY KEY, c2 INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1,1), (2,2), (3,3), (4,4), (5,5);
SET DEBUG_SYNC = 'RESET';
SET DEBUG_SYNC = 'row_log_apply_after SIGNAL apply_after WAIT_FOR insert_after';
ALTER TABLE t1 ADD UNIQUE INDEX(c2);
SET DEBUG_SYNC = 'now WAIT_FOR apply_after';
INSERT INTO t1 VALUES(6, 6);
# Kill and restart
SELECT * FROM t1;
c1	c2
1	1
2	2
3	3
4	4
5	5
6	6
DROP TABLE t1;
CREATE TABLE parent (a INT PRIMARY KEY, b INT NOT NULL) ENGINE = InnoDB;
INSERT INTO parent VALUES(1,2),(2,2);
CREATE TABLE child (a INT PRIMARY KEY, b INT NOT NULL) ENGINE = InnoDB;
INSERT INTO child VALUES (10, 2);
SET DEBUG_SYNC = 'innodb_inplace_alter_table_enter SIGNAL start_create
WAIT_FOR go_ahead';
CREATE UNIQUE INDEX idx ON parent(b);;
SET DEBUG_SYNC = 'now WAIT_FOR start_create';
INSERT INTO parent VALUES(4, 2);
SET DEBUG_SYNC = 'now SIGNAL go_ahead';
ERROR 23000: Duplicate entry '2' for key 'idx'
SET DEBUG_SYNC = 'now SIGNAL conn_add_fk';
SET DEBUG_SYNC = 'now WAIT_FOR conn_add_fk';
ALTER TABLE child ADD CONSTRAINT cfx FOREIGN KEY (b) REFERENCES parent(b);
ERROR HY000: Cannot add foreign key constraint
DROP TABLE child;
DROP TABLE parent;