Public bug reported:

Description
===========
I have try to resize instaces but it show Unexpected error
As I check from log nova import requests library from python version 3.7 but we 
use python 3.6

Environment
===========
CentOS 8.2.2004
novepackage: openstack-nova-api 20.4.0-1.el8
openstack-repo: centos-openstack-train (from official guide)
python-version: 3.6

Steps to reproduce
==================
openstack server resize --flavor <flavor-id> <instance-id>

Logs & Configs
==============
nova-api.log (https://pastebin.com/raw/uPFApnHB)

2020-09-18 12:21:58.524 1034587 DEBUG nova.api.openstack.wsgi 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Action: 'action', calling 
method: <bound method ServersController._action_resize of 
<nova.api.openstack.compute.servers.ServersController object at 
0x7f029893bac8>>, body: {"resize": {"flavorRef": 
"b453b4d8-63ca-4399-b94f-12a7d755ec63"}} _process_stack 
/usr/local/lib/python3.6/site-packages/nova/api/openstack/wsgi.py:520
2020-09-18 12:21:58.526 1034587 DEBUG nova.compute.api 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] [instance: 
eadb92d2-cddd-4330-a57f-37087c390701] Fetching instance by UUID get 
/usr/local/lib/python3.6/site-packages/nova/compute/api.py:2647
2020-09-18 12:21:58.532 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
2020-09-18 12:21:58.532 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
2020-09-18 12:21:58.533 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
2020-09-18 12:21:58.533 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
2020-09-18 12:21:58.676 1034588 DEBUG nova.api.openstack.wsgi 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Calling method '<bound 
method ServersController.detail of 
<nova.api.openstack.compute.servers.ServersController object at 
0x7f02989c9a58>>' _process_stack 
/usr/local/lib/python3.6/site-packages/nova/api/openstack/wsgi.py:523
2020-09-18 12:21:58.683 1034588 DEBUG nova.compute.api 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Searching by: 
{'changes-since': datetime.datetime(2020, 9, 18, 5, 16, 57, 836544, 
tzinfo=<FixedOffset '+00:00' datetime.timedelta(0)>)} get_all 
/usr/local/lib/python3.6/site-packages/nova/compute/api.py:2688
2020-09-18 12:21:58.697 1034588 DEBUG oslo_db.sqlalchemy.engines 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] MySQL server mode set to 
STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
 _check_effective_sql_mode 
/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py:307
2020-09-18 12:21:58.709 1034588 DEBUG nova.context 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Found 2 cells: 
00000000-0000-0000-0000-000000000000(cell0),2b40c006-7fc9-4310-a3ce-b3e09caef49e(cell1)
 load_cells /usr/local/lib/python3.6/site-packages/nova/context.py:466
2020-09-18 12:21:58.713 1034588 DEBUG oslo_concurrency.lockutils 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Lock 
"00000000-0000-0000-0000-000000000000" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
2020-09-18 12:21:58.714 1034588 DEBUG oslo_concurrency.lockutils 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Lock 
"00000000-0000-0000-0000-000000000000" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.001s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
2020-09-18 12:21:58.715 1034588 DEBUG oslo_concurrency.lockutils 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
2020-09-18 12:21:58.717 1034588 DEBUG oslo_concurrency.lockutils 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.002s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
2020-09-18 12:21:58.730 1034588 DEBUG oslo_db.sqlalchemy.engines 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] MySQL server mode set to 
STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
 _check_effective_sql_mode 
/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py:307
2020-09-18 12:21:58.779 1034588 DEBUG oslo_db.sqlalchemy.engines 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] MySQL server mode set to 
STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
 _check_effective_sql_mode 
/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py:307
2020-09-18 12:21:58.815 1034588 INFO nova.osapi_compute.wsgi.server 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] 10.10.61.21 "GET 
/v2.1/servers/detail?all_tenants=True&changes-since=2020-09-18T05%3A16%3A57.836544%2B00%3A00
 HTTP/1.1" status: 200 len: 413 time: 0.9357138
2020-09-18 12:21:59.194 1034587 DEBUG nova.compute.api 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] [instance: 
eadb92d2-cddd-4330-a57f-37087c390701] Old instance type 2vCPU-4G-30G, new 
instance type 16vCPU-AVX-16G-40G resize 
/usr/local/lib/python3.6/site-packages/nova/compute/api.py:3686
2020-09-18 12:21:59.199 1034587 DEBUG nova.context 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Found 2 cells: 
00000000-0000-0000-0000-000000000000(cell0),2b40c006-7fc9-4310-a3ce-b3e09caef49e(cell1)
 load_cells /usr/local/lib/python3.6/site-packages/nova/context.py:466
2020-09-18 12:21:59.200 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"00000000-0000-0000-0000-000000000000" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
2020-09-18 12:21:59.201 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"00000000-0000-0000-0000-000000000000" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.001s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
2020-09-18 12:21:59.202 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
2020-09-18 12:21:59.202 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
2020-09-18 12:21:59.219 1034587 DEBUG oslo_db.sqlalchemy.engines 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] MySQL server mode set to 
STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
 _check_effective_sql_mode 
/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py:307
2020-09-18 12:21:59.238 1034587 DEBUG nova.quota 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Getting quotas for project 
5c73d5ad91a84ffeb257a19560f09d17. Resources: {'ram', 'cores'} _get_quotas 
/usr/local/lib/python3.6/site-packages/nova/quota.py:390
2020-09-18 12:21:59.242 1034587 DEBUG nova.quota 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Getting quotas for user 
ed6cc4cad89a4eac96e582434c89d795 and project 5c73d5ad91a84ffeb257a19560f09d17. 
Resources: {'ram', 'cores'} _get_quotas 
/usr/local/lib/python3.6/site-packages/nova/quota.py:382
2020-09-18 12:21:59.258 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Flavor limits 0:0:0 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:337
2020-09-18 12:21:59.259 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Image limits 0:0:0 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:341
2020-09-18 12:21:59.259 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Flavor pref 0:0:0 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:377
2020-09-18 12:21:59.259 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Image pref 0:0:0 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:381
2020-09-18 12:21:59.260 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Chose sockets=0, cores=0, 
threads=0; limits were sockets=65536, cores=65536, threads=65536 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:421
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Unexpected exception in API 
method: ImportError: cannot import name 'universaldetector' from 
'requests.packages.chardet' 
(/usr/local/lib/python3.7/dist-packages/requests/packages/chardet/__init__.py)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi Traceback (most 
recent call last):
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/api/openstack/wsgi.py", line 671, 
in wrapped
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
f(*args, **kwargs)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/api/validation/__init__.py", line 
110, in wrapper
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
func(*args, **kwargs)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/api/openstack/compute/servers.py", 
line 1044, in _action_resize
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
self._resize(req, id, flavor_ref, **kwargs)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/api/openstack/compute/servers.py", 
line 963, in _resize
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
self.compute_api.resize(context, instance, flavor_id, **kwargs)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/compute/api.py", line 225, in inner
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
function(self, context, instance, *args, **kwargs)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/compute/api.py", line 152, in inner
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
f(self, context, instance, *args, **kw)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/compute/api.py", line 215, in 
wrapped
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
function(self, context, instance, *args, **kwargs)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/compute/api.py", line 3772, in 
resize
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
request_spec=request_spec)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/conductor/api.py", line 96, in 
resize_instance
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
request_spec=request_spec, host_list=host_list)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/conductor/rpcapi.py", line 340, in 
migrate_server
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
cctxt.call(context, 'migrate_server', **kw)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/lib/python3.6/site-packages/oslo_messaging/rpc/client.py", line 181, in 
call
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
transport_options=self.transport_options)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/lib/python3.6/site-packages/oslo_messaging/transport.py", line 129, in 
_send
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
transport_options=transport_options)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/lib/python3.6/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 
646, in send
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
transport_options=transport_options)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/lib/python3.6/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 
636, in _send
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     raise result
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi ImportError: 
cannot import name 'universaldetector' from 'requests.packages.chardet' 
(/usr/local/lib/python3.7/dist-packages/requests/packages/chardet/__init__.py)
2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi
2020-09-18 12:22:00.113 1034587 INFO nova.api.openstack.wsgi 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] HTTP exception thrown: 
Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and 
attach the Nova API log if possible.
<class 'ImportError'>
2020-09-18 12:22:00.115 1034587 DEBUG nova.api.openstack.wsgi 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Returning 500 to user: 
Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and 
attach the Nova API log if possible.
<class 'ImportError'> __call__ 
/usr/local/lib/python3.6/site-packages/nova/api/openstack/wsgi.py:941
2020-09-18 12:22:00.116 1034587 INFO nova.osapi_compute.wsgi.server 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] 10.10.61.101 "POST 
/v2.1/servers/eadb92d2-cddd-4330-a57f-37087c390701/action HTTP/1.1" status: 500 
len: 618 time: 1.5959389

** Affects: nova
     Importance: Undecided
         Status: New

** Description changed:

  Description
  ===========
  I have try to resize instaces but it show Unexpected error
  As I check from log nova import requests library from python version 3.7 but 
we use python 3.6
  
  Environment
  ===========
  CentOS 8.2.2004
  novepackage: openstack-nova-api 20.4.0-1.el8
  openstack-repo: centos-openstack-train (from official guide)
  python-version: 3.6
  
  Steps to reproduce
  ==================
  openstack server resize --flavor <flavor-id> <instance-id>
  
  Logs & Configs
  ==============
- nova-api.log
+ nova-api.log (https://pastebin.com/raw/uPFApnHB)
  
  2020-09-18 12:21:58.524 1034587 DEBUG nova.api.openstack.wsgi 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Action: 'action', calling 
method: <bound method ServersController._action_resize of 
<nova.api.openstack.compute.servers.ServersController object at 
0x7f029893bac8>>, body: {"resize": {"flavorRef": 
"b453b4d8-63ca-4399-b94f-12a7d755ec63"}} _process_stack 
/usr/local/lib/python3.6/site-packages/nova/api/openstack/wsgi.py:520
  2020-09-18 12:21:58.526 1034587 DEBUG nova.compute.api 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] [instance: 
eadb92d2-cddd-4330-a57f-37087c390701] Fetching instance by UUID get 
/usr/local/lib/python3.6/site-packages/nova/compute/api.py:2647
  2020-09-18 12:21:58.532 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
  2020-09-18 12:21:58.532 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
  2020-09-18 12:21:58.533 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
  2020-09-18 12:21:58.533 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
  2020-09-18 12:21:58.676 1034588 DEBUG nova.api.openstack.wsgi 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Calling method '<bound 
method ServersController.detail of 
<nova.api.openstack.compute.servers.ServersController object at 
0x7f02989c9a58>>' _process_stack 
/usr/local/lib/python3.6/site-packages/nova/api/openstack/wsgi.py:523
  2020-09-18 12:21:58.683 1034588 DEBUG nova.compute.api 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Searching by: 
{'changes-since': datetime.datetime(2020, 9, 18, 5, 16, 57, 836544, 
tzinfo=<FixedOffset '+00:00' datetime.timedelta(0)>)} get_all 
/usr/local/lib/python3.6/site-packages/nova/compute/api.py:2688
  2020-09-18 12:21:58.697 1034588 DEBUG oslo_db.sqlalchemy.engines 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] MySQL server mode set to 
STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
 _check_effective_sql_mode 
/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py:307
  2020-09-18 12:21:58.709 1034588 DEBUG nova.context 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Found 2 cells: 
00000000-0000-0000-0000-000000000000(cell0),2b40c006-7fc9-4310-a3ce-b3e09caef49e(cell1)
 load_cells /usr/local/lib/python3.6/site-packages/nova/context.py:466
  2020-09-18 12:21:58.713 1034588 DEBUG oslo_concurrency.lockutils 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Lock 
"00000000-0000-0000-0000-000000000000" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
  2020-09-18 12:21:58.714 1034588 DEBUG oslo_concurrency.lockutils 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Lock 
"00000000-0000-0000-0000-000000000000" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.001s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
  2020-09-18 12:21:58.715 1034588 DEBUG oslo_concurrency.lockutils 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
  2020-09-18 12:21:58.717 1034588 DEBUG oslo_concurrency.lockutils 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.002s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
  2020-09-18 12:21:58.730 1034588 DEBUG oslo_db.sqlalchemy.engines 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] MySQL server mode set to 
STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
 _check_effective_sql_mode 
/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py:307
  2020-09-18 12:21:58.779 1034588 DEBUG oslo_db.sqlalchemy.engines 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] MySQL server mode set to 
STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
 _check_effective_sql_mode 
/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py:307
  2020-09-18 12:21:58.815 1034588 INFO nova.osapi_compute.wsgi.server 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] 10.10.61.21 "GET 
/v2.1/servers/detail?all_tenants=True&changes-since=2020-09-18T05%3A16%3A57.836544%2B00%3A00
 HTTP/1.1" status: 200 len: 413 time: 0.9357138
  2020-09-18 12:21:59.194 1034587 DEBUG nova.compute.api 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] [instance: 
eadb92d2-cddd-4330-a57f-37087c390701] Old instance type 2vCPU-4G-30G, new 
instance type 16vCPU-AVX-16G-40G resize 
/usr/local/lib/python3.6/site-packages/nova/compute/api.py:3686
  2020-09-18 12:21:59.199 1034587 DEBUG nova.context 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Found 2 cells: 
00000000-0000-0000-0000-000000000000(cell0),2b40c006-7fc9-4310-a3ce-b3e09caef49e(cell1)
 load_cells /usr/local/lib/python3.6/site-packages/nova/context.py:466
  2020-09-18 12:21:59.200 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"00000000-0000-0000-0000-000000000000" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
  2020-09-18 12:21:59.201 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"00000000-0000-0000-0000-000000000000" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.001s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
  2020-09-18 12:21:59.202 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
  2020-09-18 12:21:59.202 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
  2020-09-18 12:21:59.219 1034587 DEBUG oslo_db.sqlalchemy.engines 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] MySQL server mode set to 
STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
 _check_effective_sql_mode 
/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py:307
  2020-09-18 12:21:59.238 1034587 DEBUG nova.quota 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Getting quotas for project 
5c73d5ad91a84ffeb257a19560f09d17. Resources: {'ram', 'cores'} _get_quotas 
/usr/local/lib/python3.6/site-packages/nova/quota.py:390
  2020-09-18 12:21:59.242 1034587 DEBUG nova.quota 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Getting quotas for user 
ed6cc4cad89a4eac96e582434c89d795 and project 5c73d5ad91a84ffeb257a19560f09d17. 
Resources: {'ram', 'cores'} _get_quotas 
/usr/local/lib/python3.6/site-packages/nova/quota.py:382
  2020-09-18 12:21:59.258 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Flavor limits 0:0:0 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:337
  2020-09-18 12:21:59.259 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Image limits 0:0:0 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:341
  2020-09-18 12:21:59.259 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Flavor pref 0:0:0 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:377
  2020-09-18 12:21:59.259 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Image pref 0:0:0 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:381
  2020-09-18 12:21:59.260 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Chose sockets=0, cores=0, 
threads=0; limits were sockets=65536, cores=65536, threads=65536 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:421
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Unexpected exception in API 
method: ImportError: cannot import name 'universaldetector' from 
'requests.packages.chardet' 
(/usr/local/lib/python3.7/dist-packages/requests/packages/chardet/__init__.py)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi Traceback (most 
recent call last):
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/api/openstack/wsgi.py", line 671, 
in wrapped
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
f(*args, **kwargs)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/api/validation/__init__.py", line 
110, in wrapper
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
func(*args, **kwargs)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/api/openstack/compute/servers.py", 
line 1044, in _action_resize
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
self._resize(req, id, flavor_ref, **kwargs)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/api/openstack/compute/servers.py", 
line 963, in _resize
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
self.compute_api.resize(context, instance, flavor_id, **kwargs)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/compute/api.py", line 225, in inner
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
function(self, context, instance, *args, **kwargs)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/compute/api.py", line 152, in inner
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
f(self, context, instance, *args, **kw)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/compute/api.py", line 215, in 
wrapped
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
function(self, context, instance, *args, **kwargs)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/compute/api.py", line 3772, in 
resize
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
request_spec=request_spec)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/conductor/api.py", line 96, in 
resize_instance
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
request_spec=request_spec, host_list=host_list)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/conductor/rpcapi.py", line 340, in 
migrate_server
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
cctxt.call(context, 'migrate_server', **kw)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/lib/python3.6/site-packages/oslo_messaging/rpc/client.py", line 181, in 
call
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
transport_options=self.transport_options)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/lib/python3.6/site-packages/oslo_messaging/transport.py", line 129, in 
_send
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
transport_options=transport_options)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/lib/python3.6/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 
646, in send
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
transport_options=transport_options)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/lib/python3.6/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 
636, in _send
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     raise result
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi ImportError: 
cannot import name 'universaldetector' from 'requests.packages.chardet' 
(/usr/local/lib/python3.7/dist-packages/requests/packages/chardet/__init__.py)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi
  2020-09-18 12:22:00.113 1034587 INFO nova.api.openstack.wsgi 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] HTTP exception thrown: 
Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and 
attach the Nova API log if possible.
  <class 'ImportError'>
  2020-09-18 12:22:00.115 1034587 DEBUG nova.api.openstack.wsgi 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Returning 500 to user: 
Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and 
attach the Nova API log if possible.
  <class 'ImportError'> __call__ 
/usr/local/lib/python3.6/site-packages/nova/api/openstack/wsgi.py:941
  2020-09-18 12:22:00.116 1034587 INFO nova.osapi_compute.wsgi.server 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] 10.10.61.101 "POST 
/v2.1/servers/eadb92d2-cddd-4330-a57f-37087c390701/action HTTP/1.1" status: 500 
len: 618 time: 1.5959389

-- 
You received this bug notification because you are a member of Yahoo!
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https://bugs.launchpad.net/bugs/1896175

Title:
  nova crash on resize instance

Status in OpenStack Compute (nova):
  New

Bug description:
  Description
  ===========
  I have try to resize instaces but it show Unexpected error
  As I check from log nova import requests library from python version 3.7 but 
we use python 3.6

  Environment
  ===========
  CentOS 8.2.2004
  novepackage: openstack-nova-api 20.4.0-1.el8
  openstack-repo: centos-openstack-train (from official guide)
  python-version: 3.6

  Steps to reproduce
  ==================
  openstack server resize --flavor <flavor-id> <instance-id>

  Logs & Configs
  ==============
  nova-api.log (https://pastebin.com/raw/uPFApnHB)

  2020-09-18 12:21:58.524 1034587 DEBUG nova.api.openstack.wsgi 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Action: 'action', calling 
method: <bound method ServersController._action_resize of 
<nova.api.openstack.compute.servers.ServersController object at 
0x7f029893bac8>>, body: {"resize": {"flavorRef": 
"b453b4d8-63ca-4399-b94f-12a7d755ec63"}} _process_stack 
/usr/local/lib/python3.6/site-packages/nova/api/openstack/wsgi.py:520
  2020-09-18 12:21:58.526 1034587 DEBUG nova.compute.api 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] [instance: 
eadb92d2-cddd-4330-a57f-37087c390701] Fetching instance by UUID get 
/usr/local/lib/python3.6/site-packages/nova/compute/api.py:2647
  2020-09-18 12:21:58.532 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
  2020-09-18 12:21:58.532 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
  2020-09-18 12:21:58.533 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
  2020-09-18 12:21:58.533 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
  2020-09-18 12:21:58.676 1034588 DEBUG nova.api.openstack.wsgi 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Calling method '<bound 
method ServersController.detail of 
<nova.api.openstack.compute.servers.ServersController object at 
0x7f02989c9a58>>' _process_stack 
/usr/local/lib/python3.6/site-packages/nova/api/openstack/wsgi.py:523
  2020-09-18 12:21:58.683 1034588 DEBUG nova.compute.api 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Searching by: 
{'changes-since': datetime.datetime(2020, 9, 18, 5, 16, 57, 836544, 
tzinfo=<FixedOffset '+00:00' datetime.timedelta(0)>)} get_all 
/usr/local/lib/python3.6/site-packages/nova/compute/api.py:2688
  2020-09-18 12:21:58.697 1034588 DEBUG oslo_db.sqlalchemy.engines 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] MySQL server mode set to 
STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
 _check_effective_sql_mode 
/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py:307
  2020-09-18 12:21:58.709 1034588 DEBUG nova.context 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Found 2 cells: 
00000000-0000-0000-0000-000000000000(cell0),2b40c006-7fc9-4310-a3ce-b3e09caef49e(cell1)
 load_cells /usr/local/lib/python3.6/site-packages/nova/context.py:466
  2020-09-18 12:21:58.713 1034588 DEBUG oslo_concurrency.lockutils 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Lock 
"00000000-0000-0000-0000-000000000000" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
  2020-09-18 12:21:58.714 1034588 DEBUG oslo_concurrency.lockutils 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Lock 
"00000000-0000-0000-0000-000000000000" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.001s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
  2020-09-18 12:21:58.715 1034588 DEBUG oslo_concurrency.lockutils 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
  2020-09-18 12:21:58.717 1034588 DEBUG oslo_concurrency.lockutils 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.002s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
  2020-09-18 12:21:58.730 1034588 DEBUG oslo_db.sqlalchemy.engines 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] MySQL server mode set to 
STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
 _check_effective_sql_mode 
/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py:307
  2020-09-18 12:21:58.779 1034588 DEBUG oslo_db.sqlalchemy.engines 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] MySQL server mode set to 
STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
 _check_effective_sql_mode 
/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py:307
  2020-09-18 12:21:58.815 1034588 INFO nova.osapi_compute.wsgi.server 
[req-b13db621-c393-4dff-a281-e5cb2b481765 34fc286937cb4ca08e8d60dace2e71c1 
624396dc175f40f39058ae1788488783 - default default] 10.10.61.21 "GET 
/v2.1/servers/detail?all_tenants=True&changes-since=2020-09-18T05%3A16%3A57.836544%2B00%3A00
 HTTP/1.1" status: 200 len: 413 time: 0.9357138
  2020-09-18 12:21:59.194 1034587 DEBUG nova.compute.api 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] [instance: 
eadb92d2-cddd-4330-a57f-37087c390701] Old instance type 2vCPU-4G-30G, new 
instance type 16vCPU-AVX-16G-40G resize 
/usr/local/lib/python3.6/site-packages/nova/compute/api.py:3686
  2020-09-18 12:21:59.199 1034587 DEBUG nova.context 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Found 2 cells: 
00000000-0000-0000-0000-000000000000(cell0),2b40c006-7fc9-4310-a3ce-b3e09caef49e(cell1)
 load_cells /usr/local/lib/python3.6/site-packages/nova/context.py:466
  2020-09-18 12:21:59.200 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"00000000-0000-0000-0000-000000000000" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
  2020-09-18 12:21:59.201 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"00000000-0000-0000-0000-000000000000" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.001s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
  2020-09-18 12:21:59.202 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" acquired by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: waited 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:327
  2020-09-18 12:21:59.202 1034587 DEBUG oslo_concurrency.lockutils 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Lock 
"2b40c006-7fc9-4310-a3ce-b3e09caef49e" released by 
"nova.context.set_target_cell.<locals>.get_or_set_cached_cell_and_set_connections"
 :: held 0.000s inner 
/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py:339
  2020-09-18 12:21:59.219 1034587 DEBUG oslo_db.sqlalchemy.engines 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] MySQL server mode set to 
STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
 _check_effective_sql_mode 
/usr/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py:307
  2020-09-18 12:21:59.238 1034587 DEBUG nova.quota 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Getting quotas for project 
5c73d5ad91a84ffeb257a19560f09d17. Resources: {'ram', 'cores'} _get_quotas 
/usr/local/lib/python3.6/site-packages/nova/quota.py:390
  2020-09-18 12:21:59.242 1034587 DEBUG nova.quota 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Getting quotas for user 
ed6cc4cad89a4eac96e582434c89d795 and project 5c73d5ad91a84ffeb257a19560f09d17. 
Resources: {'ram', 'cores'} _get_quotas 
/usr/local/lib/python3.6/site-packages/nova/quota.py:382
  2020-09-18 12:21:59.258 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Flavor limits 0:0:0 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:337
  2020-09-18 12:21:59.259 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Image limits 0:0:0 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:341
  2020-09-18 12:21:59.259 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Flavor pref 0:0:0 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:377
  2020-09-18 12:21:59.259 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Image pref 0:0:0 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:381
  2020-09-18 12:21:59.260 1034587 DEBUG nova.virt.hardware 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Chose sockets=0, cores=0, 
threads=0; limits were sockets=65536, cores=65536, threads=65536 
get_cpu_topology_constraints 
/usr/local/lib/python3.6/site-packages/nova/virt/hardware.py:421
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Unexpected exception in API 
method: ImportError: cannot import name 'universaldetector' from 
'requests.packages.chardet' 
(/usr/local/lib/python3.7/dist-packages/requests/packages/chardet/__init__.py)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi Traceback (most 
recent call last):
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/api/openstack/wsgi.py", line 671, 
in wrapped
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
f(*args, **kwargs)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/api/validation/__init__.py", line 
110, in wrapper
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
func(*args, **kwargs)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/api/openstack/compute/servers.py", 
line 1044, in _action_resize
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
self._resize(req, id, flavor_ref, **kwargs)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/api/openstack/compute/servers.py", 
line 963, in _resize
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
self.compute_api.resize(context, instance, flavor_id, **kwargs)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/compute/api.py", line 225, in inner
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
function(self, context, instance, *args, **kwargs)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/compute/api.py", line 152, in inner
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
f(self, context, instance, *args, **kw)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/compute/api.py", line 215, in 
wrapped
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
function(self, context, instance, *args, **kwargs)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/compute/api.py", line 3772, in 
resize
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
request_spec=request_spec)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/conductor/api.py", line 96, in 
resize_instance
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
request_spec=request_spec, host_list=host_list)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/local/lib/python3.6/site-packages/nova/conductor/rpcapi.py", line 340, in 
migrate_server
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     return 
cctxt.call(context, 'migrate_server', **kw)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/lib/python3.6/site-packages/oslo_messaging/rpc/client.py", line 181, in 
call
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
transport_options=self.transport_options)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/lib/python3.6/site-packages/oslo_messaging/transport.py", line 129, in 
_send
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
transport_options=transport_options)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/lib/python3.6/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 
646, in send
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     
transport_options=transport_options)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi   File 
"/usr/lib/python3.6/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 
636, in _send
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi     raise result
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi ImportError: 
cannot import name 'universaldetector' from 'requests.packages.chardet' 
(/usr/local/lib/python3.7/dist-packages/requests/packages/chardet/__init__.py)
  2020-09-18 12:22:00.108 1034587 ERROR nova.api.openstack.wsgi
  2020-09-18 12:22:00.113 1034587 INFO nova.api.openstack.wsgi 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] HTTP exception thrown: 
Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and 
attach the Nova API log if possible.
  <class 'ImportError'>
  2020-09-18 12:22:00.115 1034587 DEBUG nova.api.openstack.wsgi 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] Returning 500 to user: 
Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and 
attach the Nova API log if possible.
  <class 'ImportError'> __call__ 
/usr/local/lib/python3.6/site-packages/nova/api/openstack/wsgi.py:941
  2020-09-18 12:22:00.116 1034587 INFO nova.osapi_compute.wsgi.server 
[req-f5a1119b-62d5-4b29-9c3a-bd9cbba20251 ed6cc4cad89a4eac96e582434c89d795 
5c73d5ad91a84ffeb257a19560f09d17 - default default] 10.10.61.101 "POST 
/v2.1/servers/eadb92d2-cddd-4330-a57f-37087c390701/action HTTP/1.1" status: 500 
len: 618 time: 1.5959389

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