In this case it looks like a result of a slow node:
2019-11-05 23:12:57.389624 | ubuntu-bionic | 2019-11-05 23:10:12,022 INFO [nova.scheduler.host_manager] Received an update from an unknown host 'host2'. Re-created its InstanceList.
2019-11-05 23:12:57.391354 | ubuntu-bionic | File "nova/compute/api.py", line 2662, in _get_instance_from_cell
2019-11-05 23:12:57.391405 | ubuntu-bionic | "info is not available.") % cell_uuid)
2019-11-05 23:12:57.391514 | ubuntu-bionic | NovaException: Cell 3d90ac16-9173-4df8-8ef9-1d713ccd8a98 is not responding and hence instance info is not available.
2019-11-05 23:12:57.391704 | ubuntu-bionic | 2019-11-05 23:11:23,418 INFO [nova.api.openstack.wsgi] HTTP exception thrown: Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
I just noticed this in a nova functional job as well:
https:/ /zuul.opendev. org/t/openstack /build/ 63001bbd58c244c ea70c995f1ebf61 fb/log/ job-output. txt#3092
In this case it looks like a result of a slow node:
2019-11-05 23:12:57.389624 | ubuntu-bionic | 2019-11-05 23:10:12,022 INFO [nova.scheduler .host_manager] Received an update from an unknown host 'host2'. Re-created its InstanceList.
2019-11-05 23:12:57.389814 | ubuntu-bionic | 2019-11-05 23:10:12,569 INFO [nova.api. openstack. requestlog] 127.0.0.1 "GET /v2.1/6f70656e7 37461636b203420 65766572/ servers/ 9ceb2e4d- 9bb3-425b- 9454-b171221d6c 93" status: 200 len: 2019 microversion: 2.15 time: 0.048796
2019-11-05 23:12:57.389957 | ubuntu-bionic | 2019-11-05 23:11:23,400 WARNING [oslo.service. loopingcall] Function 'nova.servicegr oup.drivers. db.DbDriver. _report_ state' run outlasted interval by 59.77 sec
2019-11-05 23:12:57.390092 | ubuntu-bionic | 2019-11-05 23:11:23,414 WARNING [nova.context] Timed out waiting for response from cell 3d90ac16- 9173-4df8- 8ef9-1d713ccd8a 98
2019-11-05 23:12:57.390189 | ubuntu-bionic | 2019-11-05 23:11:23,415 ERROR [nova.api. openstack. wsgi] Unexpected exception in API method
2019-11-05 23:12:57.390236 | ubuntu-bionic | Traceback (most recent call last):
2019-11-05 23:12:57.390299 | ubuntu-bionic | File "nova/api/ openstack/ wsgi.py" , line 671, in wrapped
2019-11-05 23:12:57.390340 | ubuntu-bionic | return f(*args, **kwargs)
2019-11-05 23:12:57.390406 | ubuntu-bionic | File "nova/api/ validation/ __init_ _.py", line 110, in wrapper
2019-11-05 23:12:57.390450 | ubuntu-bionic | return func(*args, **kwargs)
2019-11-05 23:12:57.390515 | ubuntu-bionic | File "nova/api/ validation/ __init_ _.py", line 110, in wrapper
2019-11-05 23:12:57.390559 | ubuntu-bionic | return func(*args, **kwargs)
2019-11-05 23:12:57.390625 | ubuntu-bionic | File "nova/api/ validation/ __init_ _.py", line 110, in wrapper
2019-11-05 23:12:57.390668 | ubuntu-bionic | return func(*args, **kwargs)
2019-11-05 23:12:57.390734 | ubuntu-bionic | File "nova/api/ validation/ __init_ _.py", line 110, in wrapper
2019-11-05 23:12:57.390778 | ubuntu-bionic | return func(*args, **kwargs)
2019-11-05 23:12:57.390850 | ubuntu-bionic | File "nova/api/ openstack/ compute/ evacuate. py", line 85, in _evacuate
2019-11-05 23:12:57.390918 | ubuntu-bionic | instance = common. get_instance( self.compute_ api, context, id)
2019-11-05 23:12:57.390986 | ubuntu-bionic | File "nova/api/ openstack/ common. py", line 472, in get_instance
2019-11-05 23:12:57.391035 | ubuntu-bionic | cell_down_ support= cell_down_ support)
2019-11-05 23:12:57.391104 | ubuntu-bionic | File "nova/compute/ api.py" , line 2722, in get
2019-11-05 23:12:57.391173 | ubuntu-bionic | expected_attrs, cell_down_ support= cell_down_ support)
2019-11-05 23:12:57.391236 | ubuntu-bionic | File "nova/compute/ api.py" , line 2669, in _get_instance
2019-11-05 23:12:57.391284 | ubuntu-bionic | expected_attrs, cell_down_support)
2019-11-05 23:12:57.391354 | ubuntu-bionic | File "nova/compute/ api.py" , line 2662, in _get_instance_ from_cell
2019-11-05 23:12:57.391405 | ubuntu-bionic | "info is not available.") % cell_uuid)
2019-11-05 23:12:57.391514 | ubuntu-bionic | NovaException: Cell 3d90ac16- 9173-4df8- 8ef9-1d713ccd8a 98 is not responding and hence instance info is not available.
2019-11-05 23:12:57.391704 | ubuntu-bionic | 2019-11-05 23:11:23,418 INFO [nova.api. openstack. wsgi] HTTP exception thrown: Unexpected API Error. Please report this at http:// bugs.launchpad. net/nova/ and attach the Nova API log if possible.
2019-11-05 23:12:57.391769 | ubuntu-bionic | <class 'nova.exception .NovaException' >