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[Bence Romsics <bence.romsics@xxxxxxxxx>]

Public bug reported:

Seemingly starting from the 1st of April
neutron.tests.functional.agent.ovn.metadata.test_metadata_agent.TestMetadataAgent.test_agent_registration_at_chassis_create_event
fails randomly in the gate with the error message:

2020-04-06 08:55:57.302891 | controller | ==============================
2020-04-06 08:55:57.302931 | controller | Failed 1 tests - output below:
2020-04-06 08:55:57.302953 | controller | ==============================
2020-04-06 08:55:57.302972 | controller |
2020-04-06 08:55:57.302992 | controller | neutron.tests.functional.agent.ovn.metadata.test_metadata_agent.TestMetadataAgent.test_agent_registration_at_chassis_create_event
2020-04-06 08:55:57.303012 | controller | ---------------------------------------------------------------------------------------------------------------------------------
2020-04-06 08:55:57.303030 | controller |
2020-04-06 08:55:57.303050 | controller | Captured traceback:
2020-04-06 08:55:57.303069 | controller | ~~~~~~~~~~~~~~~~~~~
2020-04-06 08:55:57.303088 | controller |     Traceback (most recent call last):
2020-04-06 08:55:57.303107 | controller |
2020-04-06 08:55:57.303126 | controller |       File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/base.py", line 182, in func
2020-04-06 08:55:57.303145 | controller |     return f(self, *args, **kwargs)
2020-04-06 08:55:57.303164 | controller |
2020-04-06 08:55:57.303184 | controller |       File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/functional/agent/ovn/metadata/test_metadata_agent.py", line 220, in test_agent_registration_at_chassis_create_event
2020-04-06 08:55:57.303203 | controller |     chassis.external_ids)
2020-04-06 08:55:57.303223 | controller |
2020-04-06 08:55:57.303242 | controller |       File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-functional/lib/python3.6/site-packages/testtools/testcase.py", line 421, in assertIn
2020-04-06 08:55:57.303261 | controller |     self.assertThat(haystack, Contains(needle), message)
2020-04-06 08:55:57.303281 | controller |
2020-04-06 08:55:57.303300 | controller |       File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-functional/lib/python3.6/site-packages/testtools/testcase.py", line 502, in assertThat
2020-04-06 08:55:57.303319 | controller |     raise mismatch_error
2020-04-06 08:55:57.303338 | controller |
2020-04-06 08:55:57.303357 | controller |     testtools.matchers._impl.MismatchError: 'neutron:ovn-metadata-id' not in {'ovn-bridge-mappings': ''}

Example log:
https://99f8d9af3210ff587b09-7ad1a719016265adf2ccc36ef6645b87.ssl.cf2.rackcdn.com/702247/7/gate
/neutron-functional/f42992a/job-output.txt

Logstash:
http://logstash.openstack.org/#/dashboard/file/logstash.json?query=message:%5C%22neutron
:ovn-metadata-id%5C%22%20AND%20message:%5C%22ovn-bridge-
mappings%5C%22%20AND%20voting:1&from=864000s

** Affects: neutron
     Importance: Undecided
         Status: New


** Tags: gate-failure ovn

** Tags added: ovn

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https://bugs.launchpad.net/bugs/1871340

Title:
  neutron.tests.functional.agent.ovn.metadata.test_metadata_agent.TestMetadataAgent.test_agent_registration_at_chassis_create_event
  fails randomly

Status in neutron:
  New

Bug description:
  Seemingly starting from the 1st of April
  neutron.tests.functional.agent.ovn.metadata.test_metadata_agent.TestMetadataAgent.test_agent_registration_at_chassis_create_event
  fails randomly in the gate with the error message:

  2020-04-06 08:55:57.302891 | controller | ==============================
  2020-04-06 08:55:57.302931 | controller | Failed 1 tests - output below:
  2020-04-06 08:55:57.302953 | controller | ==============================
  2020-04-06 08:55:57.302972 | controller |
  2020-04-06 08:55:57.302992 | controller | neutron.tests.functional.agent.ovn.metadata.test_metadata_agent.TestMetadataAgent.test_agent_registration_at_chassis_create_event
  2020-04-06 08:55:57.303012 | controller | ---------------------------------------------------------------------------------------------------------------------------------
  2020-04-06 08:55:57.303030 | controller |
  2020-04-06 08:55:57.303050 | controller | Captured traceback:
  2020-04-06 08:55:57.303069 | controller | ~~~~~~~~~~~~~~~~~~~
  2020-04-06 08:55:57.303088 | controller |     Traceback (most recent call last):
  2020-04-06 08:55:57.303107 | controller |
  2020-04-06 08:55:57.303126 | controller |       File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/base.py", line 182, in func
  2020-04-06 08:55:57.303145 | controller |     return f(self, *args, **kwargs)
  2020-04-06 08:55:57.303164 | controller |
  2020-04-06 08:55:57.303184 | controller |       File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/functional/agent/ovn/metadata/test_metadata_agent.py", line 220, in test_agent_registration_at_chassis_create_event
  2020-04-06 08:55:57.303203 | controller |     chassis.external_ids)
  2020-04-06 08:55:57.303223 | controller |
  2020-04-06 08:55:57.303242 | controller |       File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-functional/lib/python3.6/site-packages/testtools/testcase.py", line 421, in assertIn
  2020-04-06 08:55:57.303261 | controller |     self.assertThat(haystack, Contains(needle), message)
  2020-04-06 08:55:57.303281 | controller |
  2020-04-06 08:55:57.303300 | controller |       File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-functional/lib/python3.6/site-packages/testtools/testcase.py", line 502, in assertThat
  2020-04-06 08:55:57.303319 | controller |     raise mismatch_error
  2020-04-06 08:55:57.303338 | controller |
  2020-04-06 08:55:57.303357 | controller |     testtools.matchers._impl.MismatchError: 'neutron:ovn-metadata-id' not in {'ovn-bridge-mappings': ''}

  Example log:
  https://99f8d9af3210ff587b09-7ad1a719016265adf2ccc36ef6645b87.ssl.cf2.rackcdn.com/702247/7/gate
  /neutron-functional/f42992a/job-output.txt

  Logstash:
  http://logstash.openstack.org/#/dashboard/file/logstash.json?query=message:%5C%22neutron
  :ovn-metadata-id%5C%22%20AND%20message:%5C%22ovn-bridge-
  mappings%5C%22%20AND%20voting:1&from=864000s

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