Updating power_state in the DB to match the hypervisor
报错信息如下:2017-10-0222:42:02.94480378INFOnova.compute.manager[req-347dcc06-13cb-4ced-a10d-b21bf4427430-----][instance:ec21b955-8d9c-4c42-ab33-ce5d32d6ba61]During_sync_instance_power_statetheDBpower_state