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[Balazs Gibizer <balazs.gibizer@xxxxxxxx>]

Public bug reported:

Patch I1233fbbaebd1750f572432bf74759b94408a17e3 merged yesterday adds a
test case test_boot_from_volume_10_servers_255_volumes_2_images that
fails intermittently:


2019-10-10 16:42:33.007873 | ubuntu-bionic |

2019-10-10 16:42:33.007931 | ubuntu-bionic | Captured traceback:

2019-10-10 16:42:33.007985 | ubuntu-bionic | ~~~~~~~~~~~~~~~~~~~

2019-10-10 16:42:33.008067 | ubuntu-bionic |     Traceback (most recent
call last):

2019-10-10 16:42:33.008264 | ubuntu-bionic |       File
"nova/tests/functional/test_boot_from_volume.py", line 229, in
test_boot_from_volume_10_servers_255_volumes_2_images

2019-10-10 16:42:33.008365 | ubuntu-bionic |         self.assertEqual(3,
mock_image_get.call_count)

2019-10-10 16:42:33.008598 | ubuntu-bionic |       File
"/home/zuul/src/opendev.org/openstack/nova/.tox/functional/local/lib/python2.7
/site-packages/testtools/testcase.py", line 411, in assertEqual

2019-10-10 16:42:33.008737 | ubuntu-bionic |
self.assertThat(observed, matcher, message)

2019-10-10 16:42:33.008971 | ubuntu-bionic |       File
"/home/zuul/src/opendev.org/openstack/nova/.tox/functional/local/lib/python2.7
/site-packages/testtools/testcase.py", line 498, in assertThat

2019-10-10 16:42:33.009036 | ubuntu-bionic |         raise
mismatch_error

2019-10-10 16:42:33.009130 | ubuntu-bionic |
testtools.matchers._impl.MismatchError: 3 != 4


I see 4 independent hits in logstash:

http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22testtools.matchers._impl.MismatchError%3A%203%20!%3D%204%5C%22%20AND%20project%3A%5C%22openstack%2Fnova%5C%22

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: testing

** Tags added: testing

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https://bugs.launchpad.net/bugs/1847766

Title:
  test_boot_from_volume_10_servers_255_volumes_2_images fails
  intermittently

Status in OpenStack Compute (nova):
  New

Bug description:
  Patch I1233fbbaebd1750f572432bf74759b94408a17e3 merged yesterday adds
  a test case test_boot_from_volume_10_servers_255_volumes_2_images that
  fails intermittently:

  
  2019-10-10 16:42:33.007873 | ubuntu-bionic |

  2019-10-10 16:42:33.007931 | ubuntu-bionic | Captured traceback:

  2019-10-10 16:42:33.007985 | ubuntu-bionic | ~~~~~~~~~~~~~~~~~~~

  2019-10-10 16:42:33.008067 | ubuntu-bionic |     Traceback (most
  recent call last):

  2019-10-10 16:42:33.008264 | ubuntu-bionic |       File
  "nova/tests/functional/test_boot_from_volume.py", line 229, in
  test_boot_from_volume_10_servers_255_volumes_2_images

  2019-10-10 16:42:33.008365 | ubuntu-bionic |
  self.assertEqual(3, mock_image_get.call_count)

  2019-10-10 16:42:33.008598 | ubuntu-bionic |       File
  "/home/zuul/src/opendev.org/openstack/nova/.tox/functional/local/lib/python2.7
  /site-packages/testtools/testcase.py", line 411, in assertEqual

  2019-10-10 16:42:33.008737 | ubuntu-bionic |
  self.assertThat(observed, matcher, message)

  2019-10-10 16:42:33.008971 | ubuntu-bionic |       File
  "/home/zuul/src/opendev.org/openstack/nova/.tox/functional/local/lib/python2.7
  /site-packages/testtools/testcase.py", line 498, in assertThat

  2019-10-10 16:42:33.009036 | ubuntu-bionic |         raise
  mismatch_error

  2019-10-10 16:42:33.009130 | ubuntu-bionic |
  testtools.matchers._impl.MismatchError: 3 != 4

  
  I see 4 independent hits in logstash:

  http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22testtools.matchers._impl.MismatchError%3A%203%20!%3D%204%5C%22%20AND%20project%3A%5C%22openstack%2Fnova%5C%22

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