^^&&^^

Edit File: autoinc_debug.test

--source include/have_innodb.inc
--source include/not_embedded.inc
--source include/have_debug.inc

# Two parallel connection with autoinc column after restart.

CREATE TABLE t1 (id INT AUTO_INCREMENT PRIMARY KEY)ENGINE=INNODB;

--echo # SETTING auto_increment_increment IN CONNECTION DEFAULT
SET AUTO_INCREMENT_INCREMENT = 1;
INSERT INTO t1 VALUES(NULL);
SELECT * FROM t1;
SHOW CREATE TABLE t1;

--source include/restart_mysqld.inc

--echo # SETTING auto_increment_increment IN CONNECTION1
SET AUTO_INCREMENT_INCREMENT = 2;

SET DEBUG_SYNC= 'ib_after_row_insert SIGNAL opened WAIT_FOR flushed1';

SEND 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';
send insert into t1 values(NULL);

--echo # CONNECTION default
connection default;
reap;
SELECT * FROM t1;
SHOW CREATE TABLE t1;
SET DEBUG_SYNC= 'now SIGNAL opened1';

--echo # CONNECTION con1
connection con1;
reap;
SELECT * FROM t1;
SHOW CREATE TABLE t1;
connection default;
disconnect con1;

DROP TABLE t1;

# Two parallel connection with autoinc column without restart.

CREATE TABLE t1(id INT AUTO_INCREMENT PRIMARY KEY)ENGINE=INNODB;

--echo # SETTING auto_increment_increment IN CONNECTION DEFAULT
SET AUTO_INCREMENT_INCREMENT = 1;
INSERT INTO t1 VALUES(NULL);
SELECT * FROM t1;
SHOW CREATE TABLE t1;
SET DEBUG_SYNC = 'now SIGNAL flushed';

connect(con1, localhost, root,,);

--echo # 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';

send INSERT INTO t1 values(NULL);

--echo # CONNECTION DEFAULT
connection default;

SET DEBUG_SYNC= 'now WAIT_FOR opened';
SET DEBUG_SYNC= 'ib_after_row_insert_step SIGNAL flushed1 WAIT_FOR opened1';

send INSERT INTO t1 VALUES(NULL);

--echo # CONNECTION con1
connection con1;
reap;
SELECT * FROM t1;
SHOW CREATE TABLE t1;
SET DEBUG_SYNC= 'now SIGNAL opened1';

--echo # CONNECTION default
connection default;
reap;
SELECT * FROM t1;
SHOW CREATE TABLE t1;
disconnect con1;
DROP TABLE t1;