[mysql] [主从同步错误] Last_IO_Errno: 2061

[mysql] [主从同步错误] Last_IO_Errno: 2061

Last_IO_Errno: 2061

Last_IO_Error: error connecting to master 'root@192.168.0.10:3306' - retry-time: 60 retries: 1 message: Authentication plugin 'caching_sha2_password' reported error: Authentication requires secure connection.

1.问题现象

启动slave，查看slave状态，发现报错。

有个错误IO线程在连接中, 还有一个问题就是：

Last_IO_Errno: 2061
Last_IO_Error: error connecting to master 'root@192.168.0.10:3306' - retry-time: 60 retries: 1 message: Authentication plugin 'caching_sha2_password' reported error: Authentication requires secure connection.

2.原因

加密方式和解密方式不一致，修改密码加密规则.进入mysql控制台

ALTER USER 'model_slave'@'%' IDENTIFIED WITH mysql_native_password BY 'slave123';
FLUSH PRIVILEGES;

重启slave。

3.这时抛出了另一个问题

Last_IO_Errno: 13117
Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server ids; these ids must be different for replication to work (or the --replicate-same-server-id option must be used on slave but this does not always make sense; please check the manual before using it).

4.解决方法：重启mysql服务

service mysql restart

5.进入mysql，重启slave

mysql -u root -p
start slave
show slave statusG;

成功！