Mysql 主从复制重新同步

--主机阻断写操作

mysql> FLUSH TABLES WITH READ LOCK;
Query OK, 0 rows affected (0.00 sec)

mysql> SHOW MASTER STATUS;
+------------------+----------+--------------+------------------+-------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000011 |  6397236 | djjz         | mysql            |                   |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)

--新建一个窗口导出主机数据库
[root@ecs-c21e ~]# mysqldump -u mysqld -p --opt -R djjz>djjz20190708.sql

--解锁刚才的主机窗口
mysql>UNLOCK TABLES;
Query OK, 0 rows affected (0.00 sec)

--将数据文件复制到从机

--从机操作
mysql> drop database djjz;

mysql> create database djjz;

[root@ecs-c21e ~]# mysql -u mysqld -p djjz<djjz20190708.sql

mysql>stop slave;

mysql>reset slave;

mysql>CHANGE MASTER TO MASTER_HOST='192.168.1.7',
MASTER_USER='mysqld',
MASTER_PASSWORD='123456',
MASTER_LOG_FILE='mysql-bin.000011',
MASTER_LOG_POS=6397236;

mysql>start slave;

mysql>show slave status\G
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原文链接：https://blog.csdn.net/u013008898/article/details/95045764