CentOS 8
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MySQL 8.0 : Backup with mysqldump
2019/11/28
 
For Backup and Restore MySQL Data, it's possible to run with [mysqldump].
[1] Run [mysqldump] to take dump data of MySQL.
# lock all tables and dump all data in MySQL

# during dumping data, reading is also locked, so acutually impossible to use Databases

[root@www ~]#
mysqldump -u root -p --lock-all-tables --all-databases --events > mysql_dump.sql

Enter password:
# dump all data without locking but with transaction

# ensured data integrity by [--single-transaction] option

[root@www ~]#
mysqldump -u root -p --single-transaction --all-databases --events > mysql_dump.sql

Enter password:
# dump specific database

[root@www ~]#
mysqldump -u root -p test_database --single-transaction --events > mysql_dump.sql

Enter password:
[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.
# for all damped data, simply import a fileK

[root@node01 ~]#
mysql -u root -p < mysql_dump.sql

Enter password:
# for dumped data with specific database,

# create a empty database first with the same DB name and next, import a file

[root@localhost ~]#
mysql -u root -p test_database < mysql_dump.sql

Enter password:
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