Please refer to " Using Systemd in DevStack "
Power off the server on weekends, restart the server early Monday morning, log in to the dashboard, and find that the nova status is down.
分别在controller执行
sudo su - stack
cd devstack
nova service-list
显示：
±-------------------------------------±---------------±-----------±---------±--------±------±---------------------------±----------------±------------+
| Id | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason | Forced down |
±-------------------------------------±---------------±-----------±---------±--------±------±---------------------------±----------------±------------+
| 4a6cdce9-a33d-494e-9ad5-2c84a36d33cd | nova-scheduler | controller | internal | enabled | up | 2020-08-10T04:03:04.000000 | - | False |
| db04fa3c-918f-4fc5-a63d-d937fc18d965 | nova-conductor | controller | internal | enabled | down | 2020-08-10T03:30:43.000000 | - | False |
| c2a12129-5332-4d2f-95f6-14be69d62301 | nova-conductor | controller | internal | enabled | down | 2020-08-10T03:30:43.000000 | - | False |
| 9c593d2b-c118-4e44-8fd6-bc9ff7fff16b | nova-compute | controller| nova | enabled | down | 2020-08-10T03:30:41.000000 | - | False |
| 05636616-f2a1-4507-8795-abeff73ec786 | nova-compute | computer | nova | enabled | down | 2020-08-10T04:02:46.000000 | - | False |
±-------------------------------------±---------------±-----------±---------±--------±------±---------------------------±----------------±------------+
sudo systemctl restart devstack@*
By the way, if the prompt after executing nova service-list:
You must provide a user name/id (via --os-username, --os-user-id, env[OS_USERNAME] or env[OS_USER_ID]) or an auth token (via --os-token).
Please execute: source /opt/stack/devstack/openrc admin admin
nova service-list
±-------------------------------------±---------------±-----------±---------±--------±------±---------------------------±----------------±------------+
| Id | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason | Forced down |
±-------------------------------------±---------------±-----------±---------±--------±------±---------------------------±----------------±------------+
| 4a6cdce9-a33d-494e-9ad5-2c84a36d33cd | nova-scheduler | controller | internal | enabled | up | 2020-08-10T04:04:06.000000 | - | False |
| db04fa3c-918f-4fc5-a63d-d937fc18d965 | nova-conductor | controller | internal | enabled | up | 2020-08-10T04:04:05.000000 | - | False |
| c2a12129-5332-4d2f-95f6-14be69d62301 | nova-conductor | controller | internal | enabled | up | 2020-08-10T04:04:05.000000 | - | False |
| 9c593d2b-c118-4e44-8fd6-bc9ff7fff16b | nova-compute | controller | nova | enabled | up | 2020-08-10T04:04:03.000000 | - | False |
| 05636616-f2a1-4507-8795-abeff73ec786 | nova-compute | computer | nova | enabled | down | 2020-08-10T04:02:46.000000 | - | False |
±-------------------------------------±---------------±-----------±---------±--------±------±---------------------------±----------------±------------+
Execute on the computer:
sudo systemctl restart devstack@*
在controller：
nova service-list
±-------------------------------------±---------------±-----------±---------±--------±------±---------------------------±----------------±------------+
| Id | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason | Forced down |
±-------------------------------------±---------------±-----------±---------±--------±------±---------------------------±----------------±------------+
| 4a6cdce9-a33d-494e-9ad5-2c84a36d33cd | nova-scheduler | controller | internal | enabled | up | 2020-08-10T04:05:57.000000 | - | False |
| db04fa3c-918f-4fc5-a63d-d937fc18d965 | nova-conductor |controller | internal | enabled | up | 2020-08-10T04:05:55.000000 | - | False |
| c2a12129-5332-4d2f-95f6-14be69d62301 | nova-conductor | controller | internal | enabled | up | 2020-08-10T04:05:55.000000 | - | False |
| 9c593d2b-c118-4e44-8fd6-bc9ff7fff16b | nova-compute | controller| nova | enabled | up | 2020-08-10T04:05:54.000000 | - | False |
| 05636616-f2a1-4507-8795-abeff73ec786 | nova-compute | computer | nova | enabled | up | 2020-08-10T04:05:58.000000 | - | False |
±-------------------------------------±---------------±-----------±---------±--------±------±---------------------------±----------------±------------+
Looking at the dashboard, the service is restored