yahoo-eng-team team mailing list archive

[Balazs Gibizer <balazs.gibizer@xxxxxxxxxxxx>]

Public bug reported:

The functional test test_driver_spawn_fail_when_unshelving_instance fluctuates at the following place:
Captured traceback:
2017-10-04 17:29:33.464455 | ~~~~~~~~~~~~~~~~~~~
2017-10-04 17:29:33.464483 |     b'Traceback (most recent call last):'
2017-10-04 17:29:33.464577 |     b'  File "/home/jenkins/workspace/gate-nova-tox-functional-py35-ubuntu-xenial/nova/tests/functional/test_servers.py", line 2664, in test_driver_spawn_fail_when_unshelving_instance'
2017-10-04 17:29:33.464618 |     b"    {'vcpus': 0, 'ram': 0, 'disk': 0}, usages)"
2017-10-04 17:29:33.464695 |     b'  File "/home/jenkins/workspace/gate-nova-tox-functional-py35-ubuntu-xenial/nova/tests/functional/test_servers.py", line 1117, in assertFlavorMatchesAllocation'
2017-10-04 17:29:33.464733 |     b"    self.assertEqual(flavor['vcpus'], allocation['VCPU'])"
2017-10-04 17:29:33.464816 |     b'  File "/home/jenkins/workspace/gate-nova-tox-functional-py35-ubuntu-xenial/.tox/functional-py35/lib/python3.5/site-packages/testtools/testcase.py", line 411, in assertEqual'
2017-10-04 17:29:33.464849 |     b'    self.assertThat(observed, matcher, message)'
2017-10-04 17:29:33.464931 |     b'  File "/home/jenkins/workspace/gate-nova-tox-functional-py35-ubuntu-xenial/.tox/functional-py35/lib/python3.5/site-packages/testtools/testcase.py", line 498, in assertThat'
2017-10-04 17:29:33.464953 |     b'    raise mismatch_error'
2017-10-04 17:29:33.464985 |     b'testtools.matchers._impl.MismatchError: 0 != 1'
2017-10-04 17:29:33.464998 |     b''
2017-10-04 17:29:33.465008 |

It is because the test waits for the instance state to be set to
SHELVED_OFFLOADED and then asserts that the allocation of the instance
is deleted in Placement. But the compute/manager set the instance state
_before_ it deletes that allocation so the test is racy.

[1]
http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22in%20test_driver_spawn_fail_when_unshelving_instance%5C%22

** Affects: nova
     Importance: Undecided
     Assignee: Balazs Gibizer (balazs-gibizer)
         Status: New


** Tags: testing

** Changed in: nova
     Assignee: (unassigned) => Balazs Gibizer (balazs-gibizer)

** Description changed:

  The functional test test_driver_spawn_fail_when_unshelving_instance fluctuates at the following place:
  Captured traceback:
  2017-10-04 17:29:33.464455 | ~~~~~~~~~~~~~~~~~~~
  2017-10-04 17:29:33.464483 |     b'Traceback (most recent call last):'
  2017-10-04 17:29:33.464577 |     b'  File "/home/jenkins/workspace/gate-nova-tox-functional-py35-ubuntu-xenial/nova/tests/functional/test_servers.py", line 2664, in test_driver_spawn_fail_when_unshelving_instance'
  2017-10-04 17:29:33.464618 |     b"    {'vcpus': 0, 'ram': 0, 'disk': 0}, usages)"
  2017-10-04 17:29:33.464695 |     b'  File "/home/jenkins/workspace/gate-nova-tox-functional-py35-ubuntu-xenial/nova/tests/functional/test_servers.py", line 1117, in assertFlavorMatchesAllocation'
  2017-10-04 17:29:33.464733 |     b"    self.assertEqual(flavor['vcpus'], allocation['VCPU'])"
  2017-10-04 17:29:33.464816 |     b'  File "/home/jenkins/workspace/gate-nova-tox-functional-py35-ubuntu-xenial/.tox/functional-py35/lib/python3.5/site-packages/testtools/testcase.py", line 411, in assertEqual'
  2017-10-04 17:29:33.464849 |     b'    self.assertThat(observed, matcher, message)'
  2017-10-04 17:29:33.464931 |     b'  File "/home/jenkins/workspace/gate-nova-tox-functional-py35-ubuntu-xenial/.tox/functional-py35/lib/python3.5/site-packages/testtools/testcase.py", line 498, in assertThat'
  2017-10-04 17:29:33.464953 |     b'    raise mismatch_error'
  2017-10-04 17:29:33.464985 |     b'testtools.matchers._impl.MismatchError: 0 != 1'
  2017-10-04 17:29:33.464998 |     b''
  2017-10-04 17:29:33.465008 |
  
  It is because the test waits for the instance state to be set to
- SHELVED_OFFLOADED but and then asserts that the allocation of the
- instance is deleted in Placement. But the compute/manager set the
- instance state _before_ it deletes that allocation so the test is racy.
+ SHELVED_OFFLOADED and then asserts that the allocation of the instance
+ is deleted in Placement. But the compute/manager set the instance state
+ _before_ it deletes that allocation so the test is racy.
  
- 
- [1] http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22in%20test_driver_spawn_fail_when_unshelving_instance%5C%22
+ [1]
+ http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22in%20test_driver_spawn_fail_when_unshelving_instance%5C%22

** Tags added: testing

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1721514

Title:
  test_driver_spawn_fail_when_unshelving_instance fluctuates

Status in OpenStack Compute (nova):
  New

Bug description:
  The functional test test_driver_spawn_fail_when_unshelving_instance fluctuates at the following place:
  Captured traceback:
  2017-10-04 17:29:33.464455 | ~~~~~~~~~~~~~~~~~~~
  2017-10-04 17:29:33.464483 |     b'Traceback (most recent call last):'
  2017-10-04 17:29:33.464577 |     b'  File "/home/jenkins/workspace/gate-nova-tox-functional-py35-ubuntu-xenial/nova/tests/functional/test_servers.py", line 2664, in test_driver_spawn_fail_when_unshelving_instance'
  2017-10-04 17:29:33.464618 |     b"    {'vcpus': 0, 'ram': 0, 'disk': 0}, usages)"
  2017-10-04 17:29:33.464695 |     b'  File "/home/jenkins/workspace/gate-nova-tox-functional-py35-ubuntu-xenial/nova/tests/functional/test_servers.py", line 1117, in assertFlavorMatchesAllocation'
  2017-10-04 17:29:33.464733 |     b"    self.assertEqual(flavor['vcpus'], allocation['VCPU'])"
  2017-10-04 17:29:33.464816 |     b'  File "/home/jenkins/workspace/gate-nova-tox-functional-py35-ubuntu-xenial/.tox/functional-py35/lib/python3.5/site-packages/testtools/testcase.py", line 411, in assertEqual'
  2017-10-04 17:29:33.464849 |     b'    self.assertThat(observed, matcher, message)'
  2017-10-04 17:29:33.464931 |     b'  File "/home/jenkins/workspace/gate-nova-tox-functional-py35-ubuntu-xenial/.tox/functional-py35/lib/python3.5/site-packages/testtools/testcase.py", line 498, in assertThat'
  2017-10-04 17:29:33.464953 |     b'    raise mismatch_error'
  2017-10-04 17:29:33.464985 |     b'testtools.matchers._impl.MismatchError: 0 != 1'
  2017-10-04 17:29:33.464998 |     b''
  2017-10-04 17:29:33.465008 |

  It is because the test waits for the instance state to be set to
  SHELVED_OFFLOADED and then asserts that the allocation of the instance
  is deleted in Placement. But the compute/manager set the instance
  state _before_ it deletes that allocation so the test is racy.

  [1]
  http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22in%20test_driver_spawn_fail_when_unshelving_instance%5C%22

To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1721514/+subscriptions