CREATE TABLE t1 (id INT AUTO_INCREMENT PRIMARY KEY)ENGINE=INNODB; # SETTING auto_increment_increment IN CONNECTION DEFAULT SET AUTO_INCREMENT_INCREMENT = 1; # MDEV-24348 InnoDB shutdown hang with innodb_flush_sync=0 SET GLOBAL innodb_flush_sync=OFF; # For the server to hang, we must have pages for temporary tables # (and the bug depended on MDEV-12227 not being fixed). CREATE TEMPORARY TABLE t (id SERIAL) ENGINE=InnoDB; SET debug_dbug= '+d,ib_log_flush_ahead'; INSERT INTO t1 VALUES(NULL); SELECT * FROM t1; id 1 SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `id` int(11) NOT NULL AUTO_INCREMENT, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci # restart # SETTING auto_increment_increment IN CONNECTION1 SET AUTO_INCREMENT_INCREMENT = 2; SET DEBUG_SYNC= 'ib_after_row_insert SIGNAL opened WAIT_FOR flushed1'; INSERT INTO t1 VALUES(NULL); connect con1, localhost, root,,; SET AUTO_INCREMENT_INCREMENT = 2; SET DEBUG_SYNC= 'now WAIT_FOR opened'; SET DEBUG_SYNC= 'ib_after_row_insert_step SIGNAL flushed1 WAIT_FOR opened1'; insert into t1 values(NULL); connection default; SELECT * FROM t1; id 1 3 SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `id` int(11) NOT NULL AUTO_INCREMENT, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci SET DEBUG_SYNC= 'now SIGNAL opened1'; connection con1; SELECT * FROM t1; id 1 3 5 SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `id` int(11) NOT NULL AUTO_INCREMENT, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci connection default; disconnect con1; DROP TABLE t1; CREATE TABLE t1(id INT AUTO_INCREMENT PRIMARY KEY)ENGINE=INNODB; # SETTING auto_increment_increment IN CONNECTION DEFAULT SET AUTO_INCREMENT_INCREMENT = 1; INSERT INTO t1 VALUES(NULL); SELECT * FROM t1; id 1 SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `id` int(11) NOT NULL AUTO_INCREMENT, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci SET DEBUG_SYNC = 'now SIGNAL flushed'; connect con1, localhost, root,,; # SETTING auto_increment_increment in connection1 SET AUTO_INCREMENT_INCREMENT = 2; SET DEBUG_SYNC= 'now WAIT_FOR flushed'; SET DEBUG_SYNC= 'ib_after_row_insert SIGNAL opened WAIT_FOR flushed1'; INSERT INTO t1 values(NULL); connection default; SET DEBUG_SYNC= 'now WAIT_FOR opened'; SET DEBUG_SYNC= 'ib_after_row_insert_step SIGNAL flushed1 WAIT_FOR opened1'; INSERT INTO t1 VALUES(NULL); connection con1; SELECT * FROM t1; id 1 3 SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `id` int(11) NOT NULL AUTO_INCREMENT, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci SET DEBUG_SYNC= 'now SIGNAL opened1'; disconnect con1; connection default; SELECT * FROM t1; id 1 3 5 SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `id` int(11) NOT NULL AUTO_INCREMENT, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci DROP TABLE t1; SET DEBUG_SYNC='RESET'; # # MDEV-33593: Auto increment deadlock error causes ASSERT in subsequent save point # CREATE TABLE t1(col1 INT PRIMARY KEY AUTO_INCREMENT, col2 INT) ENGINE=InnoDB; CREATE TABLE t2(col1 INT PRIMARY KEY) ENGINE=InnoDB; INSERT INTO t1(col2) values(100); connect con1, localhost, root,,; START TRANSACTION; # T1: Acquiring Row X lock on table t2 INSERT INTO t2 values(100); connect con2, localhost, root,,; START TRANSACTION; # T2: Wait for (T1) row lock on t2 after acquiring GAP Lock on t1 UPDATE t1 SET col2 = 20 where col1 = 10; SET DEBUG_SYNC='lock_wait_before_suspend SIGNAL t2_waiting'; INSERT INTO t2 values(100); connection default; SET DEBUG_SYNC='now WAIT_FOR t2_waiting'; # T3: Wait for (T2) II row Lock on t1 after acquiring Auto Increment Lock on t1 SET DEBUG_SYNC='lock_wait_before_suspend SIGNAL t3_waiting'; INSERT INTO t1(col2) SELECT col2 from t1; connection con1; SAVEPOINT s1; SET DEBUG_SYNC='now WAIT_FOR t3_waiting'; # T1: Wait for (T3) auto increment lock on t1 causing T1 -> T3 -> T2 -> T1 deadlock SET debug_dbug = '+d,innodb_deadlock_victim_self'; INSERT INTO t1(col2) VALUES(200); ERROR HY000: Failed to read auto-increment value from storage engine # The transaction should have been rolled back SELECT * FROM t1; col1 col2 1 100 SELECT * FROM t2; col1 # Release the previous savepoint using the same name SAVEPOINT s1; COMMIT; connection con2; COMMIT; connection default; COMMIT; disconnect con1; disconnect con2; # Cleanup SELECT * FROM t1; col1 col2 1 100 2 100 DROP TABLE t1; SELECT * FROM t2; col1 100 DROP TABLE t2; SET DEBUG_SYNC='RESET'; # # End of 10.5 tests #