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[Bug 1862177] [NEW] Fullstack tests failing due to problem with connection to the fake placement service

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Slawek Kaplonski <1862177@xxxxxxxxxxxxxxxxxx>
Date: Thu, 06 Feb 2020 14:22:56 -0000
Reply-to: Bug 1862177 <1862177@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

Tests like
neutron.tests.fullstack.test_agent_bandwidth_report.TestPlacementBandwidthReport.test_configurations_are_synced_towards_placement(NIC
Switch agent) are failing from time to time due to problem with
connection from neutron-server to the fake placement service.

Example of such error
https://storage.bhs.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_f66/703143/3/check
/neutron-fullstack/f667c93/testr_results.html

Error in neutron-server:

2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client [req-29a0f974-e549-4784-924e-0ee82cc8c910 - - - - -] Connection Error appeared: requests.exceptions.ConnectionError: HTTPConnectionPool(host='127.0.0.1', port=8081): Max retries exceeded with url: /placement/resource_providers?name=ubuntu-bionic-ovh-bhs1-0014319701 (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fc0d34cb5c0>: Failed to establish a new connection: [Errno 111] ECONNREFUSED',))
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client Traceback (most recent call last):
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/connection.py", line 157, in _new_conn
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     (self._dns_host, self.port), self.timeout, **extra_kw
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/util/connection.py", line 84, in create_connection
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     raise err
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/util/connection.py", line 74, in create_connection
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     sock.connect(sa)
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/eventlet/greenio/base.py", line 267, in connect
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     socket_checkerr(fd)
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/eventlet/greenio/base.py", line 51, in socket_checkerr
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     raise socket.error(err, errno.errorcode[err])
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client ConnectionRefusedError: [Errno 111] ECONNREFUSED
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client 
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client During handling of the above exception, another exception occurred:
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client 
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client Traceback (most recent call last):
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/connectionpool.py", line 672, in urlopen
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     chunked=chunked,
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/connectionpool.py", line 387, in _make_request
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     conn.request(method, url, **httplib_request_kw)
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/usr/lib/python3.6/http/client.py", line 1254, in request
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     self._send_request(method, url, body, headers, encode_chunked)
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/usr/lib/python3.6/http/client.py", line 1300, in _send_request
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     self.endheaders(body, encode_chunked=encode_chunked)
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/usr/lib/python3.6/http/client.py", line 1249, in endheaders
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     self._send_output(message_body, encode_chunked=encode_chunked)
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/usr/lib/python3.6/http/client.py", line 1036, in _send_output
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     self.send(msg)
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/usr/lib/python3.6/http/client.py", line 974, in send
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     self.connect()
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/connection.py", line 184, in connect
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     conn = self._new_conn()
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/connection.py", line 169, in _new_conn
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     self, "Failed to establish a new connection: %s" % e
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x7fc0d34cb5c0>: Failed to establish a new connection: [Errno 111] ECONNREFUSED
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client 
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client During handling of the above exception, another exception occurred:
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client 
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client Traceback (most recent call last):
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/requests/adapters.py", line 449, in send
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     timeout=timeout
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/connectionpool.py", line 720, in urlopen
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/util/retry.py", line 436, in increment
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     raise MaxRetryError(_pool, url, error or ResponseError(cause))
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='127.0.0.1', port=8081): Max retries exceeded with url: /placement/resource_providers?name=ubuntu-bionic-ovh-bhs1-0014319701 (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fc0d34cb5c0>: Failed to establish a new connection: [Errno 111] ECONNREFUSED',))
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client 
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client During handling of the above exception, another exception occurred:
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client 
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client Traceback (most recent call last):
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/neutron_lib/placement/client.py", line 114, in request
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     **kwargs)
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/requests/api.py", line 60, in request
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     return session.request(method=method, url=url, **kwargs)
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/requests/sessions.py", line 533, in request
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     resp = self.send(prep, **send_kwargs)
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/requests/sessions.py", line 646, in send
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     r = adapter.send(request, **kwargs)
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/requests/adapters.py", line 516, in send
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     raise ConnectionError(e, request=request)
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client requests.exceptions.ConnectionError: HTTPConnectionPool(host='127.0.0.1', port=8081): Max retries exceeded with url: /placement/resource_providers?name=ubuntu-bionic-ovh-bhs1-0014319701 (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fc0d34cb5c0>: Failed to establish a new connection: [Errno 111] ECONNREFUSED',))
2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client

** Affects: neutron
     Importance: High
     Assignee: Bence Romsics (bence-romsics)
         Status: Confirmed


** Tags: fullstack gate-failure

** Tags removed: fulls
** Tags added: fullstack gate-failure

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/1862177

Title:
  Fullstack tests failing due to problem with connection to the fake
  placement service

Status in neutron:
  Confirmed

Bug description:
  Tests like
  neutron.tests.fullstack.test_agent_bandwidth_report.TestPlacementBandwidthReport.test_configurations_are_synced_towards_placement(NIC
  Switch agent) are failing from time to time due to problem with
  connection from neutron-server to the fake placement service.

  Example of such error
  https://storage.bhs.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_f66/703143/3/check
  /neutron-fullstack/f667c93/testr_results.html

  Error in neutron-server:

  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client [req-29a0f974-e549-4784-924e-0ee82cc8c910 - - - - -] Connection Error appeared: requests.exceptions.ConnectionError: HTTPConnectionPool(host='127.0.0.1', port=8081): Max retries exceeded with url: /placement/resource_providers?name=ubuntu-bionic-ovh-bhs1-0014319701 (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fc0d34cb5c0>: Failed to establish a new connection: [Errno 111] ECONNREFUSED',))
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client Traceback (most recent call last):
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/connection.py", line 157, in _new_conn
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     (self._dns_host, self.port), self.timeout, **extra_kw
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/util/connection.py", line 84, in create_connection
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     raise err
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/util/connection.py", line 74, in create_connection
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     sock.connect(sa)
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/eventlet/greenio/base.py", line 267, in connect
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     socket_checkerr(fd)
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/eventlet/greenio/base.py", line 51, in socket_checkerr
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     raise socket.error(err, errno.errorcode[err])
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client ConnectionRefusedError: [Errno 111] ECONNREFUSED
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client 
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client During handling of the above exception, another exception occurred:
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client 
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client Traceback (most recent call last):
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/connectionpool.py", line 672, in urlopen
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     chunked=chunked,
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/connectionpool.py", line 387, in _make_request
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     conn.request(method, url, **httplib_request_kw)
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/usr/lib/python3.6/http/client.py", line 1254, in request
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     self._send_request(method, url, body, headers, encode_chunked)
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/usr/lib/python3.6/http/client.py", line 1300, in _send_request
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     self.endheaders(body, encode_chunked=encode_chunked)
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/usr/lib/python3.6/http/client.py", line 1249, in endheaders
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     self._send_output(message_body, encode_chunked=encode_chunked)
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/usr/lib/python3.6/http/client.py", line 1036, in _send_output
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     self.send(msg)
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/usr/lib/python3.6/http/client.py", line 974, in send
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     self.connect()
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/connection.py", line 184, in connect
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     conn = self._new_conn()
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/connection.py", line 169, in _new_conn
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     self, "Failed to establish a new connection: %s" % e
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x7fc0d34cb5c0>: Failed to establish a new connection: [Errno 111] ECONNREFUSED
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client 
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client During handling of the above exception, another exception occurred:
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client 
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client Traceback (most recent call last):
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/requests/adapters.py", line 449, in send
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     timeout=timeout
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/connectionpool.py", line 720, in urlopen
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/urllib3/util/retry.py", line 436, in increment
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     raise MaxRetryError(_pool, url, error or ResponseError(cause))
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='127.0.0.1', port=8081): Max retries exceeded with url: /placement/resource_providers?name=ubuntu-bionic-ovh-bhs1-0014319701 (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fc0d34cb5c0>: Failed to establish a new connection: [Errno 111] ECONNREFUSED',))
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client 
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client During handling of the above exception, another exception occurred:
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client 
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client Traceback (most recent call last):
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/neutron_lib/placement/client.py", line 114, in request
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     **kwargs)
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/requests/api.py", line 60, in request
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     return session.request(method=method, url=url, **kwargs)
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/requests/sessions.py", line 533, in request
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     resp = self.send(prep, **send_kwargs)
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/requests/sessions.py", line 646, in send
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     r = adapter.send(request, **kwargs)
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client   File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack/lib/python3.6/site-packages/requests/adapters.py", line 516, in send
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client     raise ConnectionError(e, request=request)
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client requests.exceptions.ConnectionError: HTTPConnectionPool(host='127.0.0.1', port=8081): Max retries exceeded with url: /placement/resource_providers?name=ubuntu-bionic-ovh-bhs1-0014319701 (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fc0d34cb5c0>: Failed to establish a new connection: [Errno 111] ECONNREFUSED',))
  2020-02-04 12:09:41.164 29846 ERROR neutron_lib.placement.client

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Follow ups

[Bug 1862177] Re: Fullstack tests failing due to problem with connection to the fake placement service
From: Slawek Kaplonski, 2023-01-17