mysql主从同步失败的解决方法

1.首先，在从服务器中停止复制线程;

MariaDB [(none)]> STOP SLAVE;
Query OK, 0 rows affected (17.48 sec)

2.从服务器复制线程停止后，在从服务器上重置SLAVE信息;

MariaDB [(none)]> RESET SLAVE;
Query OK, 0 rows affected (0.01 sec)

3.SLAVE信息重置后，重新配置正确的CHANGE MASTER TO信息;

MariaDB [(none)]> CHANGE MASTER TO 
MASTER_HOST='192.168.73.110',MASTER_USER='repluser',MASTER_PASSWORD='centos',MASTER_PORT=3306,MASTER_LOG_FILE='mysql- 
bin.000003',MASTER_LOG_POS=245;
Query OK, 0 rows affected (0.01 sec)

4.最后，CHANGE MASTER TO信息配置好后，重新启动线程即可；

MariaDB [(none)]> START SLAVE;
Query OK, 0 rows affected (0.00 sec)