[mysql] [主從同步錯誤] 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.問題現象

啟動slave，查看slave狀態，發現報錯。

有個錯誤IO線程在連接中, 還有一個問題就是：

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，修改密碼加密規則.進入mysql控制台

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

重啟slave。

3.這時拋出了另一個問題

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.解決方法：重啟mysql服務

service mysql restart

5.進入mysql，重啟slave

mysql -u root -p
start slave
show slave status\G;

成功！