mysql8.0.21搭建集群 检查节点状态 Access denied for user 'root'@'db88' (using password: YES) (MySQL Error 1045)

在CentOS7.2环境搭建最新版mysql8.0.21集群，共三个节点，231.86，231.87，231.88，在231.88上mysql shell创建集群，添加另外两个节点时，报：
MySQL db88:3306 ssl JS > cluster.checkInstanceState('root@db86:3306');

ERROR: Unable to connect to the target instance 'db86:3306'. Please verify the connection settings, make sure the instance is available and try again.

Cluster.checkInstanceState: Could not open connection to 'db86:3306': Access denied for user 'root'@'db88' (using password: YES) (MySQL Error 1045)

但退出mysql shell ,用mysql -h 10.1.228.21 -uroot -p'AAaa0000' 就能远程登陆成功，求解决。。。。。。

https://blog.csdn.net/wbw1985/article/details/85054882