MySQL 8.4 : Backup with mysqldump2025/01/31 |
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For Backup and Restore MySQL Data, it's possible to run with [mysqldump]. |
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| [1] | Run [mysqldump] to take dump data of MySQL. |
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# lock all tables and dump all data in MySQL # during dumping data, reading is also locked, so actually impossible to use Databases [root@www ~]# mysqldump --lock-all-tables --all-databases --events > mysql_dump.sql # dump all data without locking but with transaction # ensured data integrity by [--single-transaction] option [root@www ~]# mysqldump --single-transaction --all-databases --events > mysql_dump.sql # dump specific database [root@www ~]# mysqldump test_database --single-transaction --events > mysql_dump.sql |
| [2] | For restoring data from backup on another host, run like follows. Before restoring, transfer dump data to the target host with [rsync] or [scp] and so on. |
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# for all dumped data, simply import a file [root@node01 ~]# mysql < mysql_dump.sql # for dumped data with specific database, # create a empty database first with the same DB name and next, import a file [root@node01 ~]# mysql test_database < mysql_dump.sql |
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