nova list +--------------------------------------+----------------+--------+------------+-------------+----------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+----------------+--------+------------+-------------+----------+ | 0a42509e-7559-4f9d-ae13-c23a3d177fc0 | demo-instance1 | BUILD | scheduling | NOSTATE | | +--------------------------------------+----------------+--------+------------+-------------+----------+ 为什么power状态是NOSTATE,官方文档的状态是running,有没有影响,有的话怎么解决