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[Bug 1747063] [NEW] TestProviderOperations.test_get_allocation_candidates randomly fails AssertionError because of hash seed

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Matt Riedemann <mriedem.os@xxxxxxxxx>
Date: Fri, 02 Feb 2018 19:21:39 -0000
Reply-to: Bug 1747063 <1747063@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

Seen here:

http://logs.openstack.org/89/532689/6/gate/openstack-tox-py35/825fbb9
/job-output.txt.gz#_2018-02-02_17_02_50_361819

2018-02-02 17:02:50.361819 | ubuntu-xenial | nova.tests.unit.scheduler.client.test_report.TestProviderOperations.test_get_allocation_candidates
2018-02-02 17:02:50.361939 | ubuntu-xenial | --------------------------------------------------------------------------------------------------
2018-02-02 17:02:50.361957 | ubuntu-xenial |
2018-02-02 17:02:50.361998 | ubuntu-xenial | Captured pythonlogging:
2018-02-02 17:02:50.362069 | ubuntu-xenial | ~~~~~~~~~~~~~~~~~~~~~~~
2018-02-02 17:02:50.362259 | ubuntu-xenial |     b'2018-02-02 17:00:28,797 WARNING [oslo_config.cfg] Config option key_manager.api_class  is deprecated. Use option key_manager.backend instead.'
2018-02-02 17:02:50.362423 | ubuntu-xenial |     b"2018-02-02 17:00:28,811 WARNING [nova.scheduler.utils] Only (required) traits are supported. Received 'preferred' for key traitNone."
2018-02-02 17:02:50.362478 | ubuntu-xenial |     b''
2018-02-02 17:02:50.362502 | ubuntu-xenial |
2018-02-02 17:02:50.362546 | ubuntu-xenial | Captured traceback:
2018-02-02 17:02:50.362584 | ubuntu-xenial | ~~~~~~~~~~~~~~~~~~~
2018-02-02 17:02:50.362643 | ubuntu-xenial |     b'Traceback (most recent call last):'
2018-02-02 17:02:50.362821 | ubuntu-xenial |     b'  File "/home/zuul/src/git.openstack.org/openstack/nova/nova/tests/unit/scheduler/client/test_report.py", line 1512, in test_get_allocation_candidates'
2018-02-02 17:02:50.362919 | ubuntu-xenial |     b"    expected_url, raise_exc=False, microversion='1.17')"
2018-02-02 17:02:50.363092 | ubuntu-xenial |     b'  File "/home/zuul/src/git.openstack.org/openstack/nova/.tox/py35/lib/python3.5/site-packages/mock/mock.py", line 948, in assert_called_once_with'
2018-02-02 17:02:50.363179 | ubuntu-xenial |     b'    return self.assert_called_with(*args, **kwargs)'
2018-02-02 17:02:50.363368 | ubuntu-xenial |     b'  File "/home/zuul/src/git.openstack.org/openstack/nova/.tox/py35/lib/python3.5/site-packages/mock/mock.py", line 937, in assert_called_with'
2018-02-02 17:02:50.363461 | ubuntu-xenial |     b'    six.raise_from(AssertionError(_error_message(cause)), cause)'
2018-02-02 17:02:50.363536 | ubuntu-xenial |     b'  File "<string>", line 3, in raise_from'
2018-02-02 17:02:50.363742 | ubuntu-xenial |     b"AssertionError: Expected call: get('/allocation_candidates?resources=MEMORY_MB%3A1024%2CVCPU%3A1&required=CUSTOM_TRAIT1&limit=1000', microversion='1.17', raise_exc=False)"
2018-02-02 17:02:50.363922 | ubuntu-xenial |     b"Actual call: get('/allocation_candidates?resources=MEMORY_MB%3A1024%2CVCPU%3A1&limit=1000&required=CUSTOM_TRAIT1', microversion='1.17', raise_exc=False)"
2018-02-02 17:02:50.363947 | ubuntu-xenial |     b''

It's failing because we're getting random results of the entries in the
query string params.

** Affects: nova
     Importance: High
         Status: Triaged


** Tags: placement testing

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https://bugs.launchpad.net/bugs/1747063

Title:
  TestProviderOperations.test_get_allocation_candidates randomly fails
  AssertionError because of hash seed

Status in OpenStack Compute (nova):
  Triaged

Bug description:
  Seen here:

  http://logs.openstack.org/89/532689/6/gate/openstack-tox-py35/825fbb9
  /job-output.txt.gz#_2018-02-02_17_02_50_361819

  2018-02-02 17:02:50.361819 | ubuntu-xenial | nova.tests.unit.scheduler.client.test_report.TestProviderOperations.test_get_allocation_candidates
  2018-02-02 17:02:50.361939 | ubuntu-xenial | --------------------------------------------------------------------------------------------------
  2018-02-02 17:02:50.361957 | ubuntu-xenial |
  2018-02-02 17:02:50.361998 | ubuntu-xenial | Captured pythonlogging:
  2018-02-02 17:02:50.362069 | ubuntu-xenial | ~~~~~~~~~~~~~~~~~~~~~~~
  2018-02-02 17:02:50.362259 | ubuntu-xenial |     b'2018-02-02 17:00:28,797 WARNING [oslo_config.cfg] Config option key_manager.api_class  is deprecated. Use option key_manager.backend instead.'
  2018-02-02 17:02:50.362423 | ubuntu-xenial |     b"2018-02-02 17:00:28,811 WARNING [nova.scheduler.utils] Only (required) traits are supported. Received 'preferred' for key traitNone."
  2018-02-02 17:02:50.362478 | ubuntu-xenial |     b''
  2018-02-02 17:02:50.362502 | ubuntu-xenial |
  2018-02-02 17:02:50.362546 | ubuntu-xenial | Captured traceback:
  2018-02-02 17:02:50.362584 | ubuntu-xenial | ~~~~~~~~~~~~~~~~~~~
  2018-02-02 17:02:50.362643 | ubuntu-xenial |     b'Traceback (most recent call last):'
  2018-02-02 17:02:50.362821 | ubuntu-xenial |     b'  File "/home/zuul/src/git.openstack.org/openstack/nova/nova/tests/unit/scheduler/client/test_report.py", line 1512, in test_get_allocation_candidates'
  2018-02-02 17:02:50.362919 | ubuntu-xenial |     b"    expected_url, raise_exc=False, microversion='1.17')"
  2018-02-02 17:02:50.363092 | ubuntu-xenial |     b'  File "/home/zuul/src/git.openstack.org/openstack/nova/.tox/py35/lib/python3.5/site-packages/mock/mock.py", line 948, in assert_called_once_with'
  2018-02-02 17:02:50.363179 | ubuntu-xenial |     b'    return self.assert_called_with(*args, **kwargs)'
  2018-02-02 17:02:50.363368 | ubuntu-xenial |     b'  File "/home/zuul/src/git.openstack.org/openstack/nova/.tox/py35/lib/python3.5/site-packages/mock/mock.py", line 937, in assert_called_with'
  2018-02-02 17:02:50.363461 | ubuntu-xenial |     b'    six.raise_from(AssertionError(_error_message(cause)), cause)'
  2018-02-02 17:02:50.363536 | ubuntu-xenial |     b'  File "<string>", line 3, in raise_from'
  2018-02-02 17:02:50.363742 | ubuntu-xenial |     b"AssertionError: Expected call: get('/allocation_candidates?resources=MEMORY_MB%3A1024%2CVCPU%3A1&required=CUSTOM_TRAIT1&limit=1000', microversion='1.17', raise_exc=False)"
  2018-02-02 17:02:50.363922 | ubuntu-xenial |     b"Actual call: get('/allocation_candidates?resources=MEMORY_MB%3A1024%2CVCPU%3A1&limit=1000&required=CUSTOM_TRAIT1', microversion='1.17', raise_exc=False)"
  2018-02-02 17:02:50.363947 | ubuntu-xenial |     b''

  It's failing because we're getting random results of the entries in
  the query string params.

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