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|
# Define old data locations
# restart: --innodb-directories=MYSQL_TMP_DIR/old/remote_dir
# Define and create new datadir folders
## create all kinds of tables including absolute paths
CREATE TABLESPACE ts1 ADD DATAFILE 'ts1.ibd' Engine=InnoDB;
CREATE TABLE tab1(c1 int, c2 varchar(10)) TABLESPACE=ts1;
INSERT INTO tab1 VALUES(1, 'VISH');
CREATE TABLE tab2(c1 int, c2 varchar(10)) Engine=InnoDB;
INSERT INTO tab2 VALUES(2, 'VISH');
CREATE INDEX ix1 ON tab1(c2) USING BTREE;
CREATE INDEX ix1 ON tab2(c2) ;
# Create a table with absolute path.
CREATE TABLE tab3(
empno INT, ename VARCHAR(30),sal NUMERIC(3))
ENGINE=InnoDB ROW_FORMAT=COMPRESSED
PARTITION by hash(empno) (
PARTITION P0 DATA DIRECTORY 'MYSQL_TMP_DIR/old/remote_dir',
PARTITION P1 DATA DIRECTORY 'MYSQL_TMP_DIR/old/remote_dir');
# Create a tablespace in a known location with absolute path.
CREATE TABLESPACE ts2 ADD DATAFILE 'MYSQL_TMP_DIR/old/remote_dir/ts2.ibd' Engine=InnoDB;
DROP TABLESPACE ts2;
# Create a tablespace in a known location with relative path.
CREATE TABLESPACE ts2 ADD DATAFILE '../data/ts2.ibd' Engine=InnoDB;
DROP TABLESPACE ts2;
# Try to create a tablespace in an unknown location.
CREATE TABLESPACE ts2 ADD DATAFILE '../ts2.ibd' Engine=InnoDB;
ERROR HY000: The DATAFILE location must be in a known directory.
SHOW WARNINGS;
Level Code Message
Error 3121 The DATAFILE location must be in a known directory.
Error 1528 Failed to create TABLESPACE ts2
Error 3121 Incorrect File Name '../ts2.ibd'.
CREATE INDEX ix1 ON tab3(ename) USING BTREE;
INSERT INTO tab3 VALUES (100,'VISWANATH',100);
INSERT INTO tab3 VALUES (300,'VISWANATH',100);
SHOW CREATE TABLE tab1;
Table Create Table
tab1 CREATE TABLE `tab1` (
`c1` int DEFAULT NULL,
`c2` varchar(10) DEFAULT NULL,
KEY `ix1` (`c2`) USING BTREE
) /*!50100 TABLESPACE `ts1` */ ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SHOW CREATE TABLE tab2;
Table Create Table
tab2 CREATE TABLE `tab2` (
`c1` int DEFAULT NULL,
`c2` varchar(10) DEFAULT NULL,
KEY `ix1` (`c2`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SHOW CREATE TABLE tab3;
Table Create Table
tab3 CREATE TABLE `tab3` (
`empno` int DEFAULT NULL,
`ename` varchar(30) DEFAULT NULL,
`sal` decimal(3,0) DEFAULT NULL,
KEY `ix1` (`ename`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci ROW_FORMAT=COMPRESSED
/*!50100 PARTITION BY HASH (`empno`)
(PARTITION P0 DATA DIRECTORY = 'MYSQL_TMP_DIR/old/remote_dir/' ENGINE = InnoDB,
PARTITION P1 DATA DIRECTORY = 'MYSQL_TMP_DIR/old/remote_dir/' ENGINE = InnoDB) */
CREATE UNDO TABLESPACE undo_003 ADD DATAFILE 'undo_003.ibu';
CREATE UNDO TABLESPACE undo_004 ADD DATAFILE 'undo_004.ibu';
SELECT file_name,file_type,tablespace_name FROM INFORMATION_SCHEMA.FILES WHERE file_type LIKE '%undo%';
FILE_NAME FILE_TYPE TABLESPACE_NAME
./undo_001 UNDO LOG innodb_undo_001
./undo_002 UNDO LOG innodb_undo_002
./undo_003.ibu UNDO LOG undo_003
./undo_004.ibu UNDO LOG undo_004
SELECT path FROM INFORMATION_SCHEMA.INNODB_DATAFILES WHERE path LIKE '%undo_0%' ORDER BY path;
PATH
./undo_001
./undo_002
undo_003.ibu
undo_004.ibu
## Stop DB server
# Copy whole --datadir files into new locations
# Copy remote *.ibd files into new remote location
# Remove the old datadir files and *.ibd files
# Start with --innodb-directories along with other initDB options
# Check new datadir
SELECT @@datadir;
@@datadir
NEW_DATADIR/
SELECT @@innodb_undo_directory;
@@innodb_undo_directory
MYSQL_TMP_DIR/new/undo_dir
SELECT @@innodb_data_home_dir;
@@innodb_data_home_dir
DATA_HOME_DIR/new/data_home_dir
SELECT @@innodb_log_group_home_dir;
@@innodb_log_group_home_dir
DATA_HOME_DIR/new/data_home_dir
SHOW CREATE TABLE tab3;
Table Create Table
tab3 CREATE TABLE `tab3` (
`empno` int DEFAULT NULL,
`ename` varchar(30) DEFAULT NULL,
`sal` decimal(3,0) DEFAULT NULL,
KEY `ix1` (`ename`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci ROW_FORMAT=COMPRESSED
/*!50100 PARTITION BY HASH (`empno`)
(PARTITION P0 DATA DIRECTORY = 'MYSQL_TMP_DIR/new/remote_dir' ENGINE = InnoDB,
PARTITION P1 DATA DIRECTORY = 'MYSQL_TMP_DIR/new/remote_dir' ENGINE = InnoDB) */
SELECT file_name,file_type,tablespace_name FROM INFORMATION_SCHEMA.FILES WHERE file_type LIKE '%undo%';
FILE_NAME FILE_TYPE TABLESPACE_NAME
MYSQL_TMP_DIR/new/undo_dir/undo_001 UNDO LOG innodb_undo_001
MYSQL_TMP_DIR/new/undo_dir/undo_002 UNDO LOG innodb_undo_002
MYSQL_TMP_DIR/new/undo_dir/undo_003.ibu UNDO LOG undo_003
MYSQL_TMP_DIR/new/remote_dir/undo_004.ibu UNDO LOG undo_004
SELECT path FROM INFORMATION_SCHEMA.INNODB_DATAFILES WHERE path LIKE '%undo_0%' ORDER BY path;
PATH
MYSQL_TMP_DIR/new/remote_dir/undo_004.ibu
MYSQL_TMP_DIR/new/undo_dir/undo_001
MYSQL_TMP_DIR/new/undo_dir/undo_002
MYSQL_TMP_DIR/new/undo_dir/undo_003.ibu
# Stop DB server
# Start with new --datadir only
# restart: --datadir=MYSQL_TMP_DIR/new/data --innodb_undo_directory=MYSQL_TMP_DIR/new/undo_dir --innodb_data_home_dir=MYSQL_TMP_DIR/new/data_home_dir --innodb_log_group_home_dir=MYSQL_TMP_DIR/new/data_home_dir --innodb-directories=MYSQL_TMP_DIR/new/remote_dir
# Check with new --datadir
SELECT @@datadir;
@@datadir
NEW_DATADIR/
SELECT @@innodb_undo_directory;
@@innodb_undo_directory
MYSQL_TMP_DIR/new/undo_dir
SELECT @@innodb_data_home_dir;
@@innodb_data_home_dir
DATA_HOME_DIR/new/data_home_dir
SELECT @@innodb_log_group_home_dir;
@@innodb_log_group_home_dir
DATA_HOME_DIR/new/data_home_dir
# Check the tables with SHOW
SHOW CREATE TABLE tab1;
Table Create Table
tab1 CREATE TABLE `tab1` (
`c1` int DEFAULT NULL,
`c2` varchar(10) DEFAULT NULL,
KEY `ix1` (`c2`) USING BTREE
) /*!50100 TABLESPACE `ts1` */ ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SHOW CREATE TABLE tab2;
Table Create Table
tab2 CREATE TABLE `tab2` (
`c1` int DEFAULT NULL,
`c2` varchar(10) DEFAULT NULL,
KEY `ix1` (`c2`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SHOW CREATE TABLE tab3;
Table Create Table
tab3 CREATE TABLE `tab3` (
`empno` int DEFAULT NULL,
`ename` varchar(30) DEFAULT NULL,
`sal` decimal(3,0) DEFAULT NULL,
KEY `ix1` (`ename`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci ROW_FORMAT=COMPRESSED
/*!50100 PARTITION BY HASH (`empno`)
(PARTITION P0 DATA DIRECTORY = 'MYSQL_TMP_DIR/new/remote_dir' ENGINE = InnoDB,
PARTITION P1 DATA DIRECTORY = 'MYSQL_TMP_DIR/new/remote_dir' ENGINE = InnoDB) */
SELECT file_name,file_type,tablespace_name FROM INFORMATION_SCHEMA.FILES WHERE file_type LIKE '%undo%';
FILE_NAME FILE_TYPE TABLESPACE_NAME
MYSQL_TMP_DIR/new/undo_dir/undo_001 UNDO LOG innodb_undo_001
MYSQL_TMP_DIR/new/undo_dir/undo_002 UNDO LOG innodb_undo_002
MYSQL_TMP_DIR/new/undo_dir/undo_003.ibu UNDO LOG undo_003
MYSQL_TMP_DIR/new/remote_dir/undo_004.ibu UNDO LOG undo_004
SELECT path FROM INFORMATION_SCHEMA.INNODB_DATAFILES WHERE path LIKE '%undo_0%' ORDER BY path;
PATH
MYSQL_TMP_DIR/new/remote_dir/undo_004.ibu
MYSQL_TMP_DIR/new/undo_dir/undo_001
MYSQL_TMP_DIR/new/undo_dir/undo_002
MYSQL_TMP_DIR/new/undo_dir/undo_003.ibu
ALTER UNDO TABLESPACE innodb_undo_001 SET INACTIVE;
ALTER UNDO TABLESPACE innodb_undo_002 SET INACTIVE;
# Check with DML & DDL operations
SELECT * FROM tab1;
c1 c2
1 VISH
SELECT * FROM tab2;
c1 c2
2 VISH
SELECT * FROM tab3;
empno ename sal
100 VISWANATH 100
300 VISWANATH 100
DELETE FROM tab1;
DELETE FROM tab2;
DELETE FROM tab3;
ALTER TABLE tab3 ADD COLUMN c3 VARCHAR(15);
INSERT INTO tab1 VALUES(1, 'VISH');
INSERT INTO tab2 VALUES(2, 'VISH');
INSERT INTO tab3 VALUES (100,'VISWANATH',100,'New Column');
INSERT INTO tab3 VALUES (300,'VISWANATH',100,'New Column');
SELECT * FROM tab1;
c1 c2
1 VISH
SELECT * FROM tab2;
c1 c2
2 VISH
SELECT * FROM tab3;
empno ename sal c3
100 VISWANATH 100 New Column
300 VISWANATH 100 New Column
SELECT name,space_type,state FROM INFORMATION_SCHEMA.INNODB_TABLESPACES WHERE space_type = 'Undo';
name space_type state
innodb_undo_001 Undo empty
innodb_undo_002 Undo empty
undo_003 Undo active
undo_004 Undo active
ALTER UNDO TABLESPACE innodb_undo_001 SET ACTIVE;
ALTER UNDO TABLESPACE innodb_undo_002 SET ACTIVE;
SELECT name,space_type,state FROM INFORMATION_SCHEMA.INNODB_TABLESPACES WHERE space_type = 'Undo';
name space_type state
innodb_undo_001 Undo active
innodb_undo_002 Undo active
undo_003 Undo active
undo_004 Undo active
# Creating general tablespace in known DIR location
CREATE TABLESPACE ts2 ADD DATAFILE 'DATA_HOME_DIR/new/data_home_dir/ts2.ibd' Engine=InnoDB;
CREATE TABLE tab4(c1 int, c2 varchar(10)) TABLESPACE=ts2;
SHOW CREATE TABLE tab4;
Table Create Table
tab4 CREATE TABLE `tab4` (
`c1` int DEFAULT NULL,
`c2` varchar(10) DEFAULT NULL
) /*!50100 TABLESPACE `ts2` */ ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
INSERT INTO tab4 VALUES(1, 'VISH');
# Creating general tablespace in known DIR location
CREATE TABLESPACE ts3 ADD DATAFILE 'MYSQL_TMP_DIR/new/remote_dir/ts3.ibd' Engine=InnoDB;
CREATE TABLE tab5(c1 int, c2 varchar(10)) TABLESPACE=ts3;
SHOW CREATE TABLE tab5;
Table Create Table
tab5 CREATE TABLE `tab5` (
`c1` int DEFAULT NULL,
`c2` varchar(10) DEFAULT NULL
) /*!50100 TABLESPACE `ts3` */ ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
INSERT INTO tab5 VALUES(1, 'VISH');
# Clean up new datadir
DROP TABLE tab1;
DROP TABLE tab2;
DROP TABLESPACE ts1;
# Stop DB server with new datadir
# Copy back --datadir and *.ibd files into old location
# Cleanup the new DATA DIRECTORY *.ibd files
# Test by providing the relative path
# Re-start with old --datadir with --innodb-directories as remote *.ibd files are existing.
# restart: --innodb-directories=MYSQL_TMP_DIR/old/remote_dir
# Check --datadir started with old
SELECT @@datadir;
@@datadir
OLD_DATADIR
SELECT file_name,file_type,tablespace_name FROM INFORMATION_SCHEMA.FILES WHERE file_type LIKE '%undo%';
FILE_NAME FILE_TYPE TABLESPACE_NAME
./undo_001 UNDO LOG innodb_undo_001
./undo_002 UNDO LOG innodb_undo_002
./undo_003.ibu UNDO LOG undo_003
./undo_004.ibu UNDO LOG undo_004
SELECT path FROM INFORMATION_SCHEMA.INNODB_DATAFILES WHERE path LIKE '%undo_0%' ORDER BY path;
PATH
./undo_001
./undo_002
./undo_003.ibu
./undo_004.ibu
SHOW CREATE TABLE tab3;
Table Create Table
tab3 CREATE TABLE `tab3` (
`empno` int DEFAULT NULL,
`ename` varchar(30) DEFAULT NULL,
`sal` decimal(3,0) DEFAULT NULL,
`c3` varchar(15) DEFAULT NULL,
KEY `ix1` (`ename`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci ROW_FORMAT=COMPRESSED
/*!50100 PARTITION BY HASH (`empno`)
(PARTITION P0 DATA DIRECTORY = 'MYSQL_TMP_DIR/old/remote_dir' ENGINE = InnoDB,
PARTITION P1 DATA DIRECTORY = 'MYSQL_TMP_DIR/old/remote_dir' ENGINE = InnoDB) */
SHOW CREATE TABLE tab4;
Table Create Table
tab4 CREATE TABLE `tab4` (
`c1` int DEFAULT NULL,
`c2` varchar(10) DEFAULT NULL
) /*!50100 TABLESPACE `ts2` */ ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SHOW CREATE TABLE tab5;
Table Create Table
tab5 CREATE TABLE `tab5` (
`c1` int DEFAULT NULL,
`c2` varchar(10) DEFAULT NULL
) /*!50100 TABLESPACE `ts3` */ ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
ALTER UNDO TABLESPACE undo_003 SET INACTIVE;
ALTER UNDO TABLESPACE undo_004 SET INACTIVE;
SELECT name,space_type,state FROM INFORMATION_SCHEMA.INNODB_TABLESPACES WHERE space_type = 'Undo';
name space_type state
innodb_undo_001 Undo active
innodb_undo_002 Undo active
undo_003 Undo empty
undo_004 Undo empty
SHOW VARIABLES LIKE '%directories%';
Variable_name Value
innodb_directories MYSQL_TMP_DIR/old/remote_dir
# Creating general tablespace in known DIR location (DATA DIRECTORY)
CREATE TABLESPACE ts4 ADD DATAFILE 'MYSQL_TMP_DIR/old/remote_dir/ts4.ibd' Engine=InnoDB;
CREATE TABLE tab6(c1 int, c2 varchar(10)) TABLESPACE=ts4;
INSERT INTO tab6 VALUES(1, 'VISH');
DELETE FROM tab3;
DELETE FROM tab4;
DELETE FROM tab5;
DELETE FROM tab6;
SELECT ENGINE, TABLESPACE_NAME FROM INFORMATION_SCHEMA.FILES ORDER BY TABLESPACE_NAME;
ENGINE TABLESPACE_NAME
InnoDB innodb_system
InnoDB innodb_temporary
InnoDB innodb_undo_001
InnoDB innodb_undo_002
InnoDB mtr/asserted_test_suppressions
InnoDB mtr/global_suppressions
InnoDB mtr/test_ignored_global_suppressions
InnoDB mtr/test_suppressions
InnoDB mysql
InnoDB sys/sys_config
InnoDB test/tab3#p#p0
InnoDB test/tab3#p#p1
InnoDB ts2
InnoDB ts3
InnoDB ts4
InnoDB undo_003
InnoDB undo_004
DROP TABLE tab3;
DROP TABLE tab4;
DROP TABLE tab5;
DROP TABLE tab6;
DROP TABLESPACE ts4;
DROP TABLESPACE ts3;
DROP TABLESPACE ts2;
DROP UNDO TABLESPACE undo_003;
DROP UNDO TABLESPACE undo_004;
# restart:
|
