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[Bug 1545177] [NEW] nova_object.changes compare intermittently fails in py34 unit tests

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Matt Riedemann <mriedem@xxxxxxxxxx>
Date: Fri, 12 Feb 2016 21:57:15 -0000
Reply-to: Bug 1545177 <1545177@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

Seen here:

http://logs.openstack.org/81/270981/3/check/gate-nova-
python34/dfbe2a4/console.html#_2016-02-11_23_31_38_797

2016-02-11 23:31:38.797 | nova.tests.unit.compute.test_compute.ComputeAPITestCase.test_create_with_numa_topology
2016-02-11 23:31:38.798 | --------------------------------------------------------------------------------------
2016-02-11 23:31:38.798 | 
2016-02-11 23:31:38.798 | Captured traceback:
2016-02-11 23:31:38.798 | ~~~~~~~~~~~~~~~~~~~
2016-02-11 23:31:38.798 |     b'Traceback (most recent call last):'
2016-02-11 23:31:38.798 |     b'  File "/home/jenkins/workspace/gate-nova-python34/.tox/py34/lib/python3.4/site-packages/mock/mock.py", line 1305, in patched'
2016-02-11 23:31:38.798 |     b'    return func(*args, **keywargs)'
2016-02-11 23:31:38.798 |     b'  File "/home/jenkins/workspace/gate-nova-python34/nova/tests/unit/compute/test_compute.py", line 7656, in test_create_with_numa_topology'
2016-02-11 23:31:38.799 |     b'    instances[0].numa_topology.cells[0].obj_to_primitive())'
2016-02-11 23:31:38.799 |     b'  File "/home/jenkins/workspace/gate-nova-python34/.tox/py34/lib/python3.4/site-packages/testtools/testcase.py", line 362, in assertEqual'
2016-02-11 23:31:38.799 |     b'    self.assertThat(observed, matcher, message)'
2016-02-11 23:31:38.799 |     b'  File "/home/jenkins/workspace/gate-nova-python34/.tox/py34/lib/python3.4/site-packages/testtools/testcase.py", line 447, in assertThat'
2016-02-11 23:31:38.799 |     b'    raise mismatch_error'
2016-02-11 23:31:38.799 |     b'testtools.matchers._impl.MismatchError: !=:'
2016-02-11 23:31:38.799 |     b"reference = {'nova_object.changes': ['memory', 'cpuset', 'id'],"
2016-02-11 23:31:38.799 |     b" 'nova_object.data': {'cpu_pinning_raw': None,"
2016-02-11 23:31:38.799 |     b"                      'cpu_policy': None,"
2016-02-11 23:31:38.800 |     b"                      'cpu_thread_policy': None,"
2016-02-11 23:31:38.800 |     b"                      'cpu_topology': None,"
2016-02-11 23:31:38.800 |     b"                      'cpuset': (1, 2),"
2016-02-11 23:31:38.800 |     b"                      'id': 0,"
2016-02-11 23:31:38.800 |     b"                      'memory': 512,"
2016-02-11 23:31:38.800 |     b"                      'pagesize': None},"
2016-02-11 23:31:38.800 |     b" 'nova_object.name': 'InstanceNUMACell',"
2016-02-11 23:31:38.800 |     b" 'nova_object.namespace': 'nova',"
2016-02-11 23:31:38.800 |     b" 'nova_object.version': '1.3'}"
2016-02-11 23:31:38.801 |     b"actual    = {'nova_object.changes': ['id', 'memory', 'cpuset'],"
2016-02-11 23:31:38.801 |     b" 'nova_object.data': {'cpu_pinning_raw': None,"
2016-02-11 23:31:38.801 |     b"                      'cpu_policy': None,"
2016-02-11 23:31:38.801 |     b"                      'cpu_thread_policy': None,"
2016-02-11 23:31:38.801 |     b"                      'cpu_topology': None,"
2016-02-11 23:31:38.801 |     b"                      'cpuset': (1, 2),"
2016-02-11 23:31:38.801 |     b"                      'id': 0,"
2016-02-11 23:31:38.801 |     b"                      'memory': 512,"
2016-02-11 23:31:38.802 |     b"                      'pagesize': None},"
2016-02-11 23:31:38.802 |     b" 'nova_object.name': 'InstanceNUMACell',"
2016-02-11 23:31:38.802 |     b" 'nova_object.namespace': 'nova',"
2016-02-11 23:31:38.802 |     b" 'nova_object.version': '1.3'}"
2016-02-11 23:31:38.802 |     b''
2016-02-11 23:31:38.802 |     b''

The nova_object.changes are a set which aren't sorted so we get
intermittent results on the py34 job.

Dan Smith has a patch for this here:
https://review.openstack.org/#/c/279242/

** Affects: nova
     Importance: Medium
     Assignee: Dan Smith (danms)
         Status: In Progress


** Tags: testing

** Changed in: nova
       Status: New => In Progress

** Changed in: nova
   Importance: Undecided => Medium

** Changed in: nova
     Assignee: (unassigned) => Dan Smith (danms)

** Tags added: testing

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https://bugs.launchpad.net/bugs/1545177

Title:
  nova_object.changes compare intermittently fails in py34 unit tests

Status in OpenStack Compute (nova):
  In Progress

Bug description:
  Seen here:

  http://logs.openstack.org/81/270981/3/check/gate-nova-
  python34/dfbe2a4/console.html#_2016-02-11_23_31_38_797

  2016-02-11 23:31:38.797 | nova.tests.unit.compute.test_compute.ComputeAPITestCase.test_create_with_numa_topology
  2016-02-11 23:31:38.798 | --------------------------------------------------------------------------------------
  2016-02-11 23:31:38.798 | 
  2016-02-11 23:31:38.798 | Captured traceback:
  2016-02-11 23:31:38.798 | ~~~~~~~~~~~~~~~~~~~
  2016-02-11 23:31:38.798 |     b'Traceback (most recent call last):'
  2016-02-11 23:31:38.798 |     b'  File "/home/jenkins/workspace/gate-nova-python34/.tox/py34/lib/python3.4/site-packages/mock/mock.py", line 1305, in patched'
  2016-02-11 23:31:38.798 |     b'    return func(*args, **keywargs)'
  2016-02-11 23:31:38.798 |     b'  File "/home/jenkins/workspace/gate-nova-python34/nova/tests/unit/compute/test_compute.py", line 7656, in test_create_with_numa_topology'
  2016-02-11 23:31:38.799 |     b'    instances[0].numa_topology.cells[0].obj_to_primitive())'
  2016-02-11 23:31:38.799 |     b'  File "/home/jenkins/workspace/gate-nova-python34/.tox/py34/lib/python3.4/site-packages/testtools/testcase.py", line 362, in assertEqual'
  2016-02-11 23:31:38.799 |     b'    self.assertThat(observed, matcher, message)'
  2016-02-11 23:31:38.799 |     b'  File "/home/jenkins/workspace/gate-nova-python34/.tox/py34/lib/python3.4/site-packages/testtools/testcase.py", line 447, in assertThat'
  2016-02-11 23:31:38.799 |     b'    raise mismatch_error'
  2016-02-11 23:31:38.799 |     b'testtools.matchers._impl.MismatchError: !=:'
  2016-02-11 23:31:38.799 |     b"reference = {'nova_object.changes': ['memory', 'cpuset', 'id'],"
  2016-02-11 23:31:38.799 |     b" 'nova_object.data': {'cpu_pinning_raw': None,"
  2016-02-11 23:31:38.799 |     b"                      'cpu_policy': None,"
  2016-02-11 23:31:38.800 |     b"                      'cpu_thread_policy': None,"
  2016-02-11 23:31:38.800 |     b"                      'cpu_topology': None,"
  2016-02-11 23:31:38.800 |     b"                      'cpuset': (1, 2),"
  2016-02-11 23:31:38.800 |     b"                      'id': 0,"
  2016-02-11 23:31:38.800 |     b"                      'memory': 512,"
  2016-02-11 23:31:38.800 |     b"                      'pagesize': None},"
  2016-02-11 23:31:38.800 |     b" 'nova_object.name': 'InstanceNUMACell',"
  2016-02-11 23:31:38.800 |     b" 'nova_object.namespace': 'nova',"
  2016-02-11 23:31:38.800 |     b" 'nova_object.version': '1.3'}"
  2016-02-11 23:31:38.801 |     b"actual    = {'nova_object.changes': ['id', 'memory', 'cpuset'],"
  2016-02-11 23:31:38.801 |     b" 'nova_object.data': {'cpu_pinning_raw': None,"
  2016-02-11 23:31:38.801 |     b"                      'cpu_policy': None,"
  2016-02-11 23:31:38.801 |     b"                      'cpu_thread_policy': None,"
  2016-02-11 23:31:38.801 |     b"                      'cpu_topology': None,"
  2016-02-11 23:31:38.801 |     b"                      'cpuset': (1, 2),"
  2016-02-11 23:31:38.801 |     b"                      'id': 0,"
  2016-02-11 23:31:38.801 |     b"                      'memory': 512,"
  2016-02-11 23:31:38.802 |     b"                      'pagesize': None},"
  2016-02-11 23:31:38.802 |     b" 'nova_object.name': 'InstanceNUMACell',"
  2016-02-11 23:31:38.802 |     b" 'nova_object.namespace': 'nova',"
  2016-02-11 23:31:38.802 |     b" 'nova_object.version': '1.3'}"
  2016-02-11 23:31:38.802 |     b''
  2016-02-11 23:31:38.802 |     b''

  The nova_object.changes are a set which aren't sorted so we get
  intermittent results on the py34 job.

  Dan Smith has a patch for this here:
  https://review.openstack.org/#/c/279242/

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Follow ups

[Bug 1545177] Re: nova_object.changes compare intermittently fails in py34 unit tests
From: OpenStack Infra, 2016-02-21