增加xpack安全认证后日志一直打印 elastic 用户认证失败

两个节点，增加安全认证后，各自访问 9200 端口，需要输入用户名、密码，访问kibana也可以输入用户密码，登录进去，
但是为什么控制台老打印这个 info
[2020-12-09T16:49:56,670][INFO ][o.e.x.s.a.AuthenticationService] [node-141] Authentication of [elastic] was terminated by realm [reserved] - failed to authenticate user [elastic]
 
不知是何缘故，求解答