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SET GLOBAL innodb_file_per_table = 1;
SELECT @@innodb_file_per_table;
@@innodb_file_per_table
1
DROP DATABASE IF EXISTS testdb_wl6445;
CREATE DATABASE testdb_wl6445;
case # 1
SET GLOBAL innodb_file_per_table = 1;
USE testdb_wl6445;
CREATE TABLE t1 ( i int PRIMARY KEY , j blob) ENGINE = InnoDB;
INSERT INTO t1 VALUES (1,repeat('a',200)),(2,repeat('b',200)),(3,repeat('c',200));
SELECT i,LEFT(j,20) FROM t1 ORDER BY i;
i LEFT(j,20)
1 aaaaaaaaaaaaaaaaaaaa
2 bbbbbbbbbbbbbbbbbbbb
3 cccccccccccccccccccc
# restart: --innodb-read-only
USE testdb_wl6445;
SELECT i FROM t1 ORDER BY i;
i
1
2
3
INSERT INTO t1 VALUES (11,repeat('a',200)),(12,repeat('b',200)),(13,repeat('c',200));
ERROR HY000: Can't lock file (errno: 165 - Table is read only)
SELECT i,LEFT(j,20) FROM t1 ORDER BY i;
i LEFT(j,20)
1 aaaaaaaaaaaaaaaaaaaa
2 bbbbbbbbbbbbbbbbbbbb
3 cccccccccccccccccccc
INSERT INTO t1 VALUES (11,repeat('a',200)),(12,repeat('b',200)),(13,repeat('c',200));
ERROR HY000: Can't lock file (errno: 165 - Table is read only)
SELECT i,LEFT(j,20) FROM t1 ORDER BY i;
i LEFT(j,20)
1 aaaaaaaaaaaaaaaaaaaa
2 bbbbbbbbbbbbbbbbbbbb
3 cccccccccccccccccccc
CREATE TABLE t2 ( i int , j blob) ENGINE = Innodb;
ERROR HY000: InnoDB is in read only mode.
UPDATE t1 SET i = i+1;
ERROR HY000: Can't lock file (errno: 165 - Table is read only)
FLUSH STATUS;
FLUSH LOGS;
FLUSH TABLES t1;
FLUSH TABLES WITH READ LOCK;
UNLOCK TABLES;
# restart
DROP DATABASE testdb_wl6445;
case # 2
CREATE DATABASE testdb_wl6445;
USE testdb_wl6445;
CREATE TABLE t1 ( i int PRIMARY KEY , j blob) ENGINE = InnoDB;
INSERT INTO t1 VALUES (1,repeat('a',200)),(2,repeat('b',200)),(3,repeat('c',200));
SELECT i,LEFT(j,20) FROM t1 ORDER BY i;
i LEFT(j,20)
1 aaaaaaaaaaaaaaaaaaaa
2 bbbbbbbbbbbbbbbbbbbb
3 cccccccccccccccccccc
CREATE TABLE t2 ( i int PRIMARY KEY , j blob) ENGINE = InnoDB;
INSERT INTO t2 VALUES (1,repeat('a',200)),(2,repeat('b',200)),(3,repeat('c',200));
SELECT i,LEFT(j,20) FROM t2 ORDER BY i;
i LEFT(j,20)
1 aaaaaaaaaaaaaaaaaaaa
2 bbbbbbbbbbbbbbbbbbbb
3 cccccccccccccccccccc
SELECT i,LEFT(j,20) FROM t1 ORDER BY i;
i LEFT(j,20)
1 aaaaaaaaaaaaaaaaaaaa
2 bbbbbbbbbbbbbbbbbbbb
3 cccccccccccccccccccc
UPDATE t2 SET i = i + 10;
SELECT i,LEFT(j,20) FROM t2 ORDER BY i;
i LEFT(j,20)
11 aaaaaaaaaaaaaaaaaaaa
12 bbbbbbbbbbbbbbbbbbbb
13 cccccccccccccccccccc
DELETE FROM t2;
SELECT i,LEFT(j,20) FROM t2 ORDER BY i;
i LEFT(j,20)
# restart: --innodb-read-only
USE testdb_wl6445;
SELECT i FROM t1 ORDER BY i;
i
1
2
3
SELECT i FROM t2 ORDER BY i;
i
INSERT INTO t1 VALUES (11,repeat('a',200)),(12,repeat('b',200)),(13,repeat('c',200));
ERROR HY000: Can't lock file (errno: 165 - Table is read only)
SELECT i,LEFT(j,20) FROM t1 ORDER BY i;
i LEFT(j,20)
1 aaaaaaaaaaaaaaaaaaaa
2 bbbbbbbbbbbbbbbbbbbb
3 cccccccccccccccccccc
INSERT INTO t1 VALUES (11,repeat('a',200)),(12,repeat('b',200)),(13,repeat('c',200));
ERROR HY000: Can't lock file (errno: 165 - Table is read only)
SELECT i,LEFT(j,20) FROM t1 ORDER BY i;
i LEFT(j,20)
1 aaaaaaaaaaaaaaaaaaaa
2 bbbbbbbbbbbbbbbbbbbb
3 cccccccccccccccccccc
CREATE TABLE t2 ( i int , j blob) ENGINE = Innodb;
ERROR 42S01: Table 't2' already exists
CREATE TABLE t3 ( i int , j blob) ENGINE = Innodb;
ERROR HY000: InnoDB is in read only mode.
UPDATE t1 SET i = i+1;
ERROR HY000: Can't lock file (errno: 165 - Table is read only)
FLUSH STATUS;
FLUSH LOGS;
FLUSH TABLES t1,t2;
FLUSH TABLES WITH READ LOCK;
UNLOCK TABLES;
case # 3
# Try to restart the server without --innodb-read-only after removing
# write permissions of system tablespace. Server should not start.
# This confirms server is not automatically started in read-only mode.
# restart
DROP DATABASE testdb_wl6445;