mysql migration methodology in various examples

 

mysql migration methodology in various examples

mariadb official website Reference Description:

https://mariadb.com/kb/en/innodb-file-per-table-tablespaces/#copying-transportable-tablespaces

 

Demand Description: mysql migration between different data tables
Source database: 192.168.142.238 dbserver.tbl_name
target database: 192.168.142.239 db239.tbl_name

Step: 192.168 . 142 .238 lock table 
the root @ MariaDB0  18 is : 40 :   [ DbServer ] > the FLUSH TABLES tbl_name the FOR the EXPORT; 
Query the OK, 0 rows affected ( 0.047 sec) 

# data copy 
[ the root @ db238 DbServer ] LL tbl_name #. * 
- RW - RW - - 1203-Mar. 1 MySQL MySQL tbl_name.frm 13 is 17:23 
- RW - RW - - 41.94304 million MySQL MySQL-Mar. 1 17:24 13 is tbl_name.ibd 
[root@db238 dbserver]# cp tbl_name.ibd /tmp/
# 192.168.142.238解锁
root@MariaDB0 18:41:  [dbserver]> UNLOCK TABLES;
Query OK, 0 rows affected (0.041 sec)

第二步：192.168.142.239
root@MariaDB0 18:44:  [db239]> CREATE TABLE `tbl_name` (
  `uid` int(11) NOT NULL,
  `total` int(11) DEFAULT NULL,
  `rankTitle` varchar(50) DEFAULT NULL,
  `perct` decimal(3,1) DEFAULT NULL,
  PRIMARY KEY (`uid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

root@MariaDB0 18:44:  [db239]>  The ALTER  TABLE tbl_name the DISCARD TABLESPACE; 
# data from the source data to the destination server machine corresponding directory 
[ the root @ db238 tmp ] # SCP / tmp / tbl_name.ibd the root @ 192 . 168.142 . 239 : / Data / MySQL / Data / db239 / 
[ the root @ ES-VM-01 db239 ] # chown mysql.mysql tbl_name.ibd 
the root @ MariaDB0  18 is : 44 is :   [ db239 ] >   the ALTER  TABLE tbl_name IMPORT TABLESPACE; 
Query the OK, 0 rows affected, 1 warning (0.237 sec)

root@MariaDB0 18:46:  [db239]> select * from tbl_name limit 1;
+-----+-------+--------------------+-------+
| uid | total | rankTitle          | perct |
+-----+-------+--------------------+-------+
|   0 | 10000 | 宇宙好大学         |   1.0 |
+-----+-------+--------------------+-------+
1 row in set (0.002 sec)

root@MariaDB0 18:47:  [db239]>