[#MDEV-9729] strange mariadb server auth behavior

I have build a rpm from mariadb tarball. When I install it from cent os 7.I encount the following strange behavior ：

MariaDB [(none)]> show grants for lcs;

+----------------------------------------------------------------------------------------------------+

| Grants for lcs@%                                                                                   |

+----------------------------------------------------------------------------------------------------+

| GRANT USAGE ON *.* TO 'lcs'@'%' IDENTIFIED BY PASSWORD '*C2ECDF0BCD9219C43E8C4781BF515F8F9429EA82' |

| GRANT ALL PRIVILEGES ON `lcsdb`.* TO 'lcs'@'%'                                                     |

+----------------------------------------------------------------------------------------------------+

2 rows in set (0.00 sec)

MariaDB [(none)]> quit

Bye

[root@localhost code]# /usr/local/mysql/bin/mysql -ulcs

Welcome to the MariaDB monitor.  Commands end with ; or \g.

Your MariaDB connection id is 542

Server version: 10.1.12-MariaDB Source distribution

Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]>

[root@localhost code]# /usr/local/mysql/bin/mysql -ulcs  -plcs

ERROR 1045 (28000): Access denied for user 'lcs'@'localhost' (using password: YES)

So I have create a user with a password,but I can login without it,moreover,if I try to login with the correct pwd,it fails.

If I delete the mariadb data dir(/var/lib/mysql) and reinstall the rpm,then everything is normal.

[MDEV-9729] strange mariadb server auth behavior Created: 2016-03-15 Updated: 2016-04-14 Resolved: 2016-04-14
Status:	Closed
Project:	MariaDB Server
Component/s:	Authentication and Privilege System
Affects Version/s:	10.1.12
Fix Version/s:	N/A