Openstack內的keystone用不上任何指令

Openstack安裝完成後裝上了keystone, 但指令像用不上, 例如show tables, 只出現->

OS : Ubuntu 14.04

root@controller:~# mysql -uroot -p123
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 36
Server version: 5.5.63-MariaDB-1ubuntu0.14.04.1 (Ubuntu)

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

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

MariaDB [(none)]> use keystone
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
MariaDB [keystone]> show tables
->
->

https://jingyan.baidu.com/article/4d58d5411b6bd59dd4e9c019.html