nova 数据库中删除虚机
Database changed MariaDB [nova]> SET FOREIGN_KEY_CHECKS=0; Query OK, 0 rows affected (0.000 sec) MariaDB [nova]> delete from instances; Query OK, 75 rows affected (0.007 sec) MariaDB [nova]> SET FOREIGN_KEY_CHECKS=1; Query OK, 0 rows affected (0.000 sec)