Mysql 使用binlog日志 通过时间点或位置点的恢复

1. 开启 mysql binlog 日志功能 vim /etc/my.cnf 添加下面内容

log-bin=/localmnt/backup/mysqlbinlog/mysql-bin

2. 重启mysql

systemctl restart mysqld

3. 全量备份mysql

mysqldump -u root -pxxx database_name | gzip > /localmnt/database_name.sql.gz

4. 如果数据被删除了，首先通过全量备份导入数据

mysql -uroot -pxxx  database_name  < /localmnt/database_name.sql

5. 通过查询 binlog 日志，找出需要恢复的时间点

mysqlbinlog binlog_files | more  

通过时间点恢复

mysqlbinlog --stop-position="102" --start-position="367" mysql-bin.000001 | mysql -uroot -pxxx database_name
mysqlbinlog --start-datetime="2018-04-20 10:01:00" --stop-datetime="2005-04-21 10:01:00" mysql-bin.000001 | mysql -u root -pxxx   database_name

6. 重置binlog日志

mysql> reset master;
Query OK, 0 rows affected (0.01 sec)

mysql> show master status;
+------------------+----------+--------------+------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000001 |      106 |              |                  |
+------------------+----------+--------------+------------------+