mysql8.0.20配合binlog2sql的配置和简单备份恢复的步骤详解

时间:2021-05-23

第一步 安装

1.安装MySQL

2.安装Python3

[root@localhost /]#yum install python3

3.下载binlog2sql文件到本地(文件在百度云盘)

[root@localhost /]#mkdir tools[root@localhost /]#cd tools[root@localhost tools]# lltotal 317440-rw-r--r--. 1 root root 317440 Sep 21 23:55 binlog2sql.tar[root@localhost tools]#tar -xvf binlog2sql.tar[root@localhost tools]#cd binlog2sql[root@localhost binlog2sql]# lltotal 52drwxr-xr-x. 3 mysql mysql 91 Jun 13 08:14 binlog2sqldrwxr-xr-x. 2 mysql mysql 54 Jun 13 07:45 example-rw-r--r--. 1 mysql mysql 35141 Jun 13 07:45 LICENSE-rw-r--r--. 1 mysql mysql 9514 Jun 13 07:45 README.md-rw-r--r--. 1 mysql mysql 54 Jun 13 07:45 requirements.txtdrwxr-xr-x. 2 mysql mysql 37 Jun 13 07:45 tests

4.修改binlog2sql中的requirements.txt,把PyMySQL==0.7.11改为0.9.3,保存退出

[root@localhost binlog2sql]# vi requirements.txtPyMySQL==0.9.3wheel==0.29.0mysql-replication==0.13

5.安装和检查,确保是0.9.3 不然出错

[root@localhost binlog2sql]# pip3 install -r requirements.txt[root@localhost binlog2sql]# pip3 show pymysqlName: PyMySQLVersion: 0.9.3Summary: Pure Python MySQL DriverHome-page: https://github.com/PyMySQL/PyMySQL/Author: yutaka.matsubaraAuthor-email: yutaka.matsubara@gmail.comLicense: "MIT"Location: /usr/local/lib/python3.6/site-packagesRequires:

第二步 准备MySQL数据

1.配置文件最好加入安全目录secure-file-priv=/test,重启MySQL

[root@localhost /]# mkdir test[root@localhost /]# chown -R mysql.mysql test[root@localhost mysqldata]#vi my.cnfsecure-file-priv=/testbasedir=/application/mysqldatadir=/data/mysqlsocket=/data/mysqldata/mysql.socklog_error=/data/mysqldata/mysql8.0.errport=3306server_id=6secure-file-priv=/testautocommit=0 log_bin=/data/mysqldata/mysql-bin [root@localhost mysqldata]# systemctl start mysqld

注:每个人都配置文件路径都不一样

2.进入MySQL

Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 11Server version: 8.0.20 MySQL Community Server - GPLCopyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql> show master status\g;+------------------+----------+--------------+------------------+-------------------+| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |+------------------+----------+--------------+------------------+-------------------+| mysql-bin.000001 | 156 | | | |+------------------+----------+--------------+------------------+-------------------+mysql> create database csdn;mysql> use csdnmysql> insert into t1 values(1),(2),(3),(4),(5),(6),(7),(8);mysql> commit;mysql> update t1 set id=10 where id=1;mysql> delete from t1 where id=3;mysql> commit;

第三步 测试 进入binlog2sql目录下的binlog2sql下

[root@localhost binlog2sql]# pwd/tools/binlog2sql/binlog2sql[root@localhost binlog2sql]# lltotal 24-rwxr-xr-x. 1 mysql mysql 7747 Jun 13 07:45 binlog2sql.py-rwxr-xr-x. 1 mysql mysql 11581 Jun 13 07:45 binlog2sql_util.py-rw-r--r--. 1 mysql mysql 92 Jun 13 07:45 __init__.pydrwxr-xr-x. 2 mysql mysql 44 Jun 13 07:50 __pycache__

2.开始备份库下的表的操作
2.1 查看刚才数据库csdn下的操作

[root@localhost binlog2sql]# python3 binlog2sql.py -h 192.168.0.112 -P3306 -uroot -p123 -d csdn -t t1 --start-file='mysql-bin.000001'USE b'csdn';create database csdn;USE b'csdn';create table t1 (id int);INSERT INTO `csdn`.`t1`(`id`) VALUES (1); #start 609 end 807 time 2020-09-25 02:21:21INSERT INTO `csdn`.`t1`(`id`) VALUES (2); #start 609 end 807 time 2020-09-25 02:21:21INSERT INTO `csdn`.`t1`(`id`) VALUES (3); #start 609 end 807 time 2020-09-25 02:21:21INSERT INTO `csdn`.`t1`(`id`) VALUES (4); #start 609 end 807 time 2020-09-25 02:21:21INSERT INTO `csdn`.`t1`(`id`) VALUES (5); #start 609 end 807 time 2020-09-25 02:21:21INSERT INTO `csdn`.`t1`(`id`) VALUES (6); #start 609 end 807 time 2020-09-25 02:21:21INSERT INTO `csdn`.`t1`(`id`) VALUES (7); #start 609 end 807 time 2020-09-25 02:21:21INSERT INTO `csdn`.`t1`(`id`) VALUES (8); #start 609 end 807 time 2020-09-25 02:21:21UPDATE `csdn`.`t1` SET `id`=10 WHERE `id`=1 LIMIT 1; #start 917 end 1095 time 2020-09-25 02:21:39DELETE FROM `csdn`.`t1` WHERE `id`=3 LIMIT 1; #start 917 end 1183 time 2020-09-25 02:21:48

2.2备份数据库csdn下的操作

[root@localhost binlog2sql]# python3 binlog2sql.py -h 192.168.0.112 -P3306 -uroot -p123 -d csdn -t t1 --start-file='mysql-bin.000001' >/test/binlog2sql.sql

2.3 查看刚才备份的sql文件

[root@localhost binlog2sql]# cat /test/binlog2sql.sqlUSE b'csdn';create database csdn;USE b'csdn';create table t1 (id int);INSERT INTO `csdn`.`t1`(`id`) VALUES (1); #start 609 end 807 time 2020-09-25 02:21:21INSERT INTO `csdn`.`t1`(`id`) VALUES (2); #start 609 end 807 time 2020-09-25 02:21:21INSERT INTO `csdn`.`t1`(`id`) VALUES (3); #start 609 end 807 time 2020-09-25 02:21:21INSERT INTO `csdn`.`t1`(`id`) VALUES (4); #start 609 end 807 time 2020-09-25 02:21:21INSERT INTO `csdn`.`t1`(`id`) VALUES (5); #start 609 end 807 time 2020-09-25 02:21:21INSERT INTO `csdn`.`t1`(`id`) VALUES (6); #start 609 end 807 time 2020-09-25 02:21:21INSERT INTO `csdn`.`t1`(`id`) VALUES (7); #start 609 end 807 time 2020-09-25 02:21:21INSERT INTO `csdn`.`t1`(`id`) VALUES (8); #start 609 end 807 time 2020-09-25 02:21:21UPDATE `csdn`.`t1` SET `id`=10 WHERE `id`=1 LIMIT 1; #start 917 end 1095 time 2020-09-25 02:21:39DELETE FROM `csdn`.`t1` WHERE `id`=3 LIMIT 1; #start 917 end 1183 time 2020-09-25 02:21:48

3.单独查看删除语句

[root@localhost binlog2sql]# python3 binlog2sql.py -h 192.168.0.112 -P3306 -uroot -p123 -d csdn -t t1 --start-file='mysql-bin.000001' --sql-type=deleteUSE b'csdn';create database csdn;USE b'csdn';create table t1 (id int);DELETE FROM `csdn`.`t1` WHERE `id`=3 LIMIT 1; #start 917 end 1183 time 2020-09-25 02:21:48

4.把删除语句反转保存到sql文件中,并且查看

[root@localhost binlog2sql]# python3 binlog2sql.py -h 192.168.0.112 -P3306 -uroot -p123 -d csdn -t t1 --start-file='mysql-bin.000001' --sql-type=delete --start-position=917 --stop-position=1183 -B >/test/roll.sql[root@localhost binlog2sql]# cat /test/roll.sql INSERT INTO `csdn`.`t1`(`id`) VALUES (3); #start 917 end 1183 time 2020-09-25 02:21:48

5.进入MySQL,恢复被删除的数据

mysql> source /test/roll.sqlQuery OK, 1 row affected (0.00 sec)mysql> select * from t1;+------+| id |+------+| 10 || 2 || 4 || 5 || 6 || 7 || 8 || 3 |+------+8 rows in set (0.00 sec)

总结

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