ERROR 1396 (HY000): Operation CREATE USER failed for

mysql> CREATE USER 'newUser'@'localhost' IDENTIFIED BY 'gitlab!@#';
ERROR 1396 (HY000): Operation CREATE USER failed for 'gitlab'@'localhost'

mysql> FLUSH PRIVILEGES;  这里执行这个命令并不能解决问题
Query OK, 0 rows affected (0.00 sec )

下面仍然报错
mysql> CREATE USER 'newUser'@'localhost' IDENTIFIED BY 'gitlab!@#';
ERROR 1396 (HY000): Operation CREATE USER failed for 'gitlab'@'localhost'

使用 drop user 才可以解决这个问题:

mysql> drop user newUser@localhost;
Query OK, 0 rows affected (0.05 sec)

mysql> CREATE USER 'newUser'@'localhost' IDENTIFIED BY 'gitlab!@#';
Query OK, 0 rows affected (0.00 sec)