config root man

SET @global_innodb_file_per_table_orig = @@global.innodb_file_per_table;
SET GLOBAL innodb_file_per_table = on;
CREATE TABLE t1 (c1 INT PRIMARY KEY, c2 INT NOT NULL, c3 TEXT NOT NULL)
ENGINE = InnoDB;
INSERT INTO t1 VALUES (1,1,''), (2,2,''), (3,3,''), (4,4,''), (5,5,'');
SET GLOBAL innodb_monitor_enable = module_ddl;
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE
subsystem = 'ddl' and name not in
('ddl_sort_file_alter_table','ddl_log_file_alter_table') and count > 0;
name	count
SET DEBUG_SYNC = 'RESET';
SET DEBUG_SYNC = 'write_row_noreplace SIGNAL have_handle WAIT_FOR go_ahead';
INSERT INTO t1 VALUES(1,2,3);
# Establish session con1 (user=root)
SET DEBUG_SYNC = 'now WAIT_FOR have_handle';
SET lock_wait_timeout = 1;
ALTER TABLE t1 ROW_FORMAT=REDUNDANT;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
SET DEBUG_SYNC = 'now SIGNAL go_ahead';
# session default
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE
subsystem = 'ddl' and name not in
('ddl_sort_file_alter_table','ddl_log_file_alter_table') and count > 0;
name	count
# session con1
SET SESSION DEBUG = '+d,innodb_OOM_prepare_inplace_alter';
ALTER TABLE t1 ROW_FORMAT=REDUNDANT, ALGORITHM=INPLACE, LOCK=NONE;
ERROR HY000: Out of memory; check if mysqld or some other process uses all available memory; if not, you may have to use 'ulimit' to allow mysqld to use more memory or you can add more swap space
SET SESSION DEBUG = '-d,innodb_OOM_prepare_inplace_alter';
SET SESSION DEBUG = '+d,innodb_OOM_inplace_alter';
ALTER TABLE t1 ROW_FORMAT=REDUNDANT, ALGORITHM=INPLACE, LOCK=NONE;
ERROR HY000: Out of memory; check if mysqld or some other process uses all available memory; if not, you may have to use 'ulimit' to allow mysqld to use more memory or you can add more swap space
SET SESSION DEBUG = '-d,innodb_OOM_inplace_alter';
ALTER TABLE t1 ROW_FORMAT=REDUNDANT, ALGORITHM=INPLACE, LOCK=NONE;
# session default
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL,
  `c2` int(11) NOT NULL,
  `c3` text NOT NULL,
  PRIMARY KEY (`c1`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=REDUNDANT
BEGIN;
INSERT INTO t1 VALUES(7,4,2);
# session con1
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL scanned WAIT_FOR insert_done';
ALTER TABLE t1 DROP PRIMARY KEY, ADD UNIQUE INDEX(c2);
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
# session default
COMMIT;
# session con1
ALTER TABLE t1 DROP PRIMARY KEY, ADD UNIQUE INDEX(c2);
ERROR 23000: Duplicate entry '4' for key 'c2'
# session default
DELETE FROM t1 WHERE c1 = 7;
# session con1
ALTER TABLE t1 DROP PRIMARY KEY, ADD UNIQUE INDEX(c2), ROW_FORMAT=COMPACT,
LOCK = SHARED, ALGORITHM = INPLACE;
ALTER TABLE t1 ADD UNIQUE INDEX(c2),
LOCK = EXCLUSIVE, ALGORITHM = INPLACE;
Warnings:
Warning	1831	Duplicate index 'c2_2' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL,
  `c2` int(11) NOT NULL,
  `c3` text NOT NULL,
  UNIQUE KEY `c2` (`c2`),
  UNIQUE KEY `c2_2` (`c2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT
ALTER TABLE t1 DROP INDEX c2, ALGORITHM = INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported. Reason: Dropping a primary key is not allowed without also adding a new primary key. Try ALGORITHM=COPY.
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL,
  `c2` int(11) NOT NULL,
  `c3` text NOT NULL,
  UNIQUE KEY `c2` (`c2`),
  UNIQUE KEY `c2_2` (`c2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT
ALTER TABLE t1 DROP INDEX c2, ADD PRIMARY KEY(c1);
# session default
SET DEBUG_SYNC = 'now WAIT_FOR scanned';
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE
subsystem = 'ddl' and name not in
('ddl_sort_file_alter_table','ddl_log_file_alter_table') and count > 0;
name	count
ddl_online_create_index	1
ddl_pending_alter_table	1
BEGIN;
INSERT INTO t1 VALUES(4,7,2);
SET DEBUG_SYNC = 'now SIGNAL insert_done';
# session con1
ERROR 23000: Duplicate entry '4' for key 'PRIMARY'
# session default
ROLLBACK;
# session con1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL,
  `c2` int(11) NOT NULL,
  `c3` text NOT NULL,
  UNIQUE KEY `c2` (`c2`),
  UNIQUE KEY `c2_2` (`c2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT
ALTER TABLE t1 DROP PRIMARY KEY, ADD UNIQUE INDEX(c2), ALGORITHM = INPLACE;
ERROR 42000: Can't DROP 'PRIMARY'; check that column/key exists
ALTER TABLE t1 DROP INDEX c2, ADD PRIMARY KEY(c1), ALGORITHM = INPLACE;
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE
subsystem = 'ddl' and name not in
('ddl_sort_file_alter_table','ddl_log_file_alter_table') and count > 0;
name	count
# session default
INSERT INTO t1 VALUES(6,3,1);
ERROR 23000: Duplicate entry '3' for key 'c2_2'
INSERT INTO t1 VALUES(7,4,2);
ERROR 23000: Duplicate entry '4' for key 'c2_2'
DROP INDEX c2_2 ON t1;
BEGIN;
INSERT INTO t1 VALUES(7,4,2);
ROLLBACK;
# session con1
KILL QUERY @id;
ERROR 70100: Query execution was interrupted
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL rebuilt WAIT_FOR kill_done';
ALTER TABLE t1 ROW_FORMAT=REDUNDANT;
# session default
SET DEBUG_SYNC = 'now WAIT_FOR rebuilt';
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE
subsystem = 'ddl' and name not in
('ddl_sort_file_alter_table','ddl_log_file_alter_table') and count > 0;
name	count
ddl_online_create_index	1
ddl_pending_alter_table	1
KILL QUERY @id;
SET DEBUG_SYNC = 'now SIGNAL kill_done';
# session con1
ERROR 70100: Query execution was interrupted
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE
subsystem = 'ddl' and name not in
('ddl_sort_file_alter_table','ddl_log_file_alter_table') and count > 0;
name	count
# session default
CHECK TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
INSERT INTO t1 SELECT  5 + c1, c2, c3 FROM t1;
INSERT INTO t1 SELECT 10 + c1, c2, c3 FROM t1;
INSERT INTO t1 SELECT 20 + c1, c2, c3 FROM t1;
INSERT INTO t1 SELECT 40 + c1, c2, c3 FROM t1;
EXPLAIN SELECT COUNT(*) FROM t1 WHERE c2 > 3;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	NULL	ALL	NULL	NULL	NULL	NULL	80	33.33	Using where
Warnings:
Note	1003	/* select#1 */ select count(0) AS `COUNT(*)` from `test`.`t1` where (`test`.`t1`.`c2` > 3)
ANALYZE TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
# session con1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL,
  `c2` int(11) NOT NULL,
  `c3` text NOT NULL,
  PRIMARY KEY (`c1`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL rebuilt2 WAIT_FOR dml2_done';
SET lock_wait_timeout = 10;
ALTER TABLE t1 ROW_FORMAT=COMPACT, ALGORITHM = INPLACE;
# session default
INSERT INTO t1 SELECT  80 + c1, c2, c3 FROM t1;
INSERT INTO t1 SELECT 160 + c1, c2, c3 FROM t1;
UPDATE t1 SET c2 = c2 + 1;
SET DEBUG_SYNC = 'now WAIT_FOR rebuilt2';
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE
subsystem = 'ddl' and name not in
('ddl_sort_file_alter_table','ddl_log_file_alter_table') and count > 0;
name	count
ddl_online_create_index	1
ddl_pending_alter_table	1
BEGIN;
DELETE FROM t1;
ROLLBACK;
UPDATE t1 SET c2 = c2 + 1;
BEGIN;
UPDATE t1 SET c2 = c2 + 1;
DELETE FROM t1;
ROLLBACK;
BEGIN;
DELETE FROM t1;
ROLLBACK;
UPDATE t1 SET c2 = c2 + 1;
BEGIN;
UPDATE t1 SET c2 = c2 + 1;
DELETE FROM t1;
ROLLBACK;
BEGIN;
DELETE FROM t1;
ROLLBACK;
UPDATE t1 SET c2 = c2 + 1;
BEGIN;
UPDATE t1 SET c2 = c2 + 1;
DELETE FROM t1;
ROLLBACK;
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE
subsystem = 'ddl' and name not in
('ddl_sort_file_alter_table','ddl_log_file_alter_table') and count > 0;
name	count
ddl_online_create_index	1
ddl_pending_alter_table	1
SET DEBUG_SYNC = 'now SIGNAL dml2_done';
# session con1
ERROR HY000: Creating index 'PRIMARY' required more than 'innodb_online_alter_log_max_size' bytes of modification log. Please try again.
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE
subsystem = 'ddl' and name not in
('ddl_sort_file_alter_table','ddl_log_file_alter_table') and count > 0;
name	count
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL rebuilt3 WAIT_FOR dml3_done';
ALTER TABLE t1 ADD PRIMARY KEY(c22f), CHANGE c2 c22f INT;
ERROR 42000: Multiple primary key defined
ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY(c22f), CHANGE c2 c22f INT;
ERROR 23000: Duplicate entry '5' for key 'PRIMARY'
ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY(c1,c22f,c4(5)),
CHANGE c2 c22f INT, CHANGE c3 c3 TEXT NULL, CHANGE c1 c1 INT AFTER c22f,
ADD COLUMN c4 VARCHAR(6) DEFAULT 'Online';
# session default
SET DEBUG_SYNC = 'now WAIT_FOR rebuilt3';
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE
subsystem = 'ddl' and name not in
('ddl_sort_file_alter_table','ddl_log_file_alter_table') and count > 0;
name	count
ddl_online_create_index	1
ddl_pending_alter_table	1
BEGIN;
INSERT INTO t1 SELECT 320 + c1, c2, c3 FROM t1 WHERE c1 > 240;
DELETE FROM t1 WHERE c1 > 320;
ROLLBACK;
BEGIN;
UPDATE t1 SET c2 = c2 + 1;
DELETE FROM t1;
ROLLBACK;
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE
subsystem = 'ddl' and name not in
('ddl_sort_file_alter_table','ddl_log_file_alter_table') and count > 0;
name	count
ddl_online_create_index	1
ddl_pending_alter_table	1
SET DEBUG_SYNC = 'now SIGNAL dml3_done';
# session con1
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE
subsystem = 'ddl' and name not in
('ddl_sort_file_alter_table','ddl_log_file_alter_table') and count > 0;
name	count
SELECT COUNT(c22f) FROM t1;
COUNT(c22f)
320
CHECK TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY c3p5(c3(5));
ERROR 23000: Duplicate entry '' for key 'PRIMARY'
UPDATE t1 SET c3 = NULL WHERE c3 = '';
SET lock_wait_timeout = 1;
ALTER TABLE t1 DROP COLUMN c22f, ADD PRIMARY KEY c3p5(c3(5));
ERROR 42000: Multiple primary key defined
ALTER TABLE t1 DROP COLUMN c22f, DROP PRIMARY KEY, ADD PRIMARY KEY c3p5(c3(5)),
ALGORITHM = INPLACE;
ERROR 22004: Invalid use of NULL value
ALTER TABLE t1 MODIFY c3 TEXT NOT NULL;
ERROR 22004: Invalid use of NULL value
UPDATE t1 SET c3=CONCAT(c1,REPEAT('foo',c1)) WHERE c3 IS NULL;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL c3p5_created0 WAIT_FOR ins_done0';
ALTER TABLE t1 MODIFY c3 TEXT NOT NULL, DROP COLUMN c22f,
ADD COLUMN c5 CHAR(5) DEFAULT 'tired' FIRST;
# session default
SET DEBUG_SYNC = 'now WAIT_FOR c3p5_created0';
BEGIN;
INSERT INTO t1 VALUES(347,33101,'Pikku kakkosen posti','YLETV2');
INSERT INTO t1 VALUES(33101,347,NULL,'');
SET DEBUG_SYNC = 'now SIGNAL ins_done0';
# session con1
ERROR 22004: Invalid use of NULL value
# session default
ROLLBACK;
# session con1
ALTER TABLE t1 MODIFY c3 TEXT NOT NULL;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL c3p5_created WAIT_FOR ins_done';
ALTER TABLE t1 DROP PRIMARY KEY, DROP COLUMN c22f,
ADD COLUMN c6 VARCHAR(1000) DEFAULT
'I love tracking down hard-to-reproduce bugs.',
ADD PRIMARY KEY c3p5(c3(5), c6(2));
# session default
SET DEBUG_SYNC = 'now WAIT_FOR c3p5_created';
SET DEBUG_SYNC = 'ib_after_row_insert SIGNAL ins_done WAIT_FOR ddl_timed_out';
INSERT INTO t1 VALUES(347,33101,NULL,'');
ERROR 23000: Column 'c3' cannot be null
INSERT INTO t1 VALUES(347,33101,'Pikku kakkosen posti','');
# session con1
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
SET DEBUG_SYNC = 'now SIGNAL ddl_timed_out';
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE
subsystem = 'ddl' and name not in
('ddl_sort_file_alter_table','ddl_log_file_alter_table') and count > 0;
name	count
# session default
SELECT COUNT(*) FROM t1;
COUNT(*)
321
ALTER TABLE t1 ROW_FORMAT=REDUNDANT;
SELECT * FROM t1 LIMIT 10;
c22f	c1	c3	c4
5	1	1foo	Online
6	2	2foofoo	Online
7	3	3foofoofoo	Online
8	4	4foofoofoofoo	Online
9	5	5foofoofoofoofoo	Online
5	6	6foofoofoofoofoofoo	Online
6	7	7foofoofoofoofoofoofoo	Online
7	8	8foofoofoofoofoofoofoofoo	Online
8	9	9foofoofoofoofoofoofoofoofoo	Online
9	10	10foofoofoofoofoofoofoofoofoofoo	Online
# session con1
ALTER TABLE t1 DISCARD TABLESPACE;
# session default
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c22f` int(11) NOT NULL,
  `c1` int(11) NOT NULL,
  `c3` text NOT NULL,
  `c4` varchar(6) NOT NULL DEFAULT 'Online',
  PRIMARY KEY (`c1`,`c22f`,`c4`(5))
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=REDUNDANT
DROP TABLE t1;
#
# Bug#18894337 ONLINE ALTER TABLE LOG APPLY FAILS TO SKIP LOCKING
#
# session con1
CREATE TABLE t1 (a SERIAL, c64 VARCHAR(64) UNIQUE) ENGINE=InnoDB;
INSERT INTO t1 VALUES(0, NULL);
SET DEBUG='+d,innodb_trx_duplicates';
SET DEBUG_SYNC='row_log_table_apply1_before SIGNAL t1_ddl WAIT_FOR t1_dml';
ALTER TABLE t1 ENGINE=InnoDB;
# session default
SET DEBUG_SYNC='now WAIT_FOR t1_ddl';
INSERT INTO t1 VALUES(0, NULL), (0, NULL);
SET DEBUG_SYNC='now SIGNAL t1_dml';
# session con1
# Disconnect session con1
# session default
DROP TABLE t1;
SET DEBUG_SYNC = 'RESET';
SET DEBUG = '';
SET GLOBAL innodb_monitor_disable = module_ddl;
SET GLOBAL DEBUG = '';
SET GLOBAL innodb_file_per_table = @global_innodb_file_per_table_orig;
SET GLOBAL innodb_monitor_enable  = default;
SET GLOBAL innodb_monitor_disable = default;