Mycat创建表ERROR 3009 java.lang.NullPointerException

Mycat创建表ERROR3009java.lang.NullPointerException

问题描述：

配置完Mycat正常启动，创建表
mycat报错：

ERROR 3009 (HY000): java.lang.NullPointerException

查看日志/logs/mycat.log

ERROR [Timer1] (io.mycat.backend.jdbc.JDBCHeartbeat.heartbeat(JDBCHeartbeat.java:123)) - JDBCHeartBeat error
java.sql.SQLException: null,  message from server: "Host 'Master' is not allowed to connect to this MySQL server"

MySQL拒绝远程连接

解决方案：

给用户授权

#登录MySQL
mysql -u root -p

#登录mysql数据库
use mysql;

update user Host set = '%' where User = 'root';
flush privileges;