The error information is as follows:

[root@localhost ~]# mysql -u root -p
Enter password:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

Cause of the problem.

There are empty users in the database

 

Solution:

1 Disable mysql service: # service mysql stop

2 Enter the command: # mysqld_safe –user=mysql –skip-grant-tables –skip-networking &

3 Login to the database: # mysql -u root mysql

4 mysql> use mysql;

5 mysql> select user,host,password from user;

6 Delete the empty user from the above query: mysql> delete from user where user=”;

7 Quit the database: mysql> quit

8 Start mysql service: # service mysql start

9 Log back in: # service mysql start # mysql -u root -p