初始化報該錯CDH 初始化資料庫 報錯ERROR Exception when creating/dropping database with user ‘root’ and jdbc url ‘jdbc:mysql://localhost/?useUnicode=true&characterEncoding=UTF-8’，原因是沒有該使用者，無法建立。

初始化命令格式：

解決方法：進到mysql資料庫裡新增建立使用者，格式如下
grant all privileges on . to ‘root’@‘localhost’ identified by ‘123456’ with grant option;

grant all privileges on . to ‘root’@‘hadoop1’ identified by ‘123456’ with grant option;

grant all privileges on . to ‘root’@‘127.0.0.1’ identified by ‘123456’ with grant option;

grant all privileges on . to ‘root’@’%’ identified by ‘123456’ with grant option;

grant all privileges on . to ‘scm’@‘localhost’ identified by ‘scm’ with grant option;

grant all privileges on . to ‘scm’@‘hadoop1’ identified by ‘scm’ with grant option;

grant all privileges on . to ‘scm’@‘127.0.0.1’ identified by ‘scm’ with grant option;

grant all privileges on . to ‘scm’@’%’ identified by ‘scm’ with grant option;

PS。如果資料庫裡有cm和scm表，需要先刪除在重新初始化。