mysql 備份恢復

物理備份

先關閉資料庫

[root@localhost ~]
# systemctl restart mysqld
[root@localhost ~]
# systemctl stop firewalld.service
[root@localhost ~]
# setenforce 0
[root@localhost ~]
# cd /usr/local/mysql/ '//進入資料儲存的位置'
[root@localhost mysql]
# tar jcvf /opt/mysql-$(date +%f).tar.xz /usr/local/mysql/data
[root@localhost mysql]
# cd /opt '//備份後的所在位置'
[root@localhost opt]
# ls
mysql-2020-08-24.tar.xz mysql-5.7.17 rh

邏輯備份

[root@localhost mysql]
# mysqldump -uroot -p school > /opt/school.sql
enter password:
[root@localhost mysql]
# cd /opt
[root@localhost opt]
# ls
mysql-2020-08-24.tar.xz mysql-5.7.17 rh school.sql

多庫備份

[root@localhost mysql]
# mysqldump -uroot -pcx199929 --databases school student > /opt/stusch.sql

所有資料庫的完整性備份

[root@localhost opt]
# mysqldump -uroot -pcx199929 --opt --all-databases > /opt/all.sql

備份某張表

[root@localhost opt]
# mysqldump -uroot -pcx199929 school student > /opt/schoolstu.sql

備份表結構

[root@localhost opt]
# mysqldump -uroot -pcx199929 -d school student > /opt/stu.sql

恢復

mysql> source /opt/school.sql;
或mysql -urro -pcx199929 school < /opt/school.sql

增量備份

'//開啟二進位制日誌'vim /etc/my.cnf log-bin=mysql-bin sysetmctl restart mysqld/ /重啟服務 cd / data /mysqldump -uroot -pcx199929 school > /opt/school.sql mysqladmin -uroot -pcx199929 flush-logs

mysqlbinlog --no-defaults --base64-output=decode-rows -v mysql-bin.000002 > /opt/bak.txt

斷點恢復

mysqlbinlog --no-defaults --stop-datetime='2010-8-25 11:28:18' /usr/local/mysql/ data /mysql-bin.000001 | mysql -u root -p mysqlbinlog --no-defaults -- start -datetime='2020-8-25 11:29:03' /usr/local/mysql/ data

/mysql-bin.000001 | mysql -u root -p

時間點恢復

mysqlbinlog --no-defaults --stop-position='571' /usr/local/mysql/ data /mysql-bin.000001 | mysql -u root -p mysqlbinlog --no-defaults --stop-position='679' /usr/local/mysql/ data

/mysql-bin.000001 | mysql -u root -p

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