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[Slawek Kaplonski <1911643@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Test neutron.tests.fullstack.test_qos.TestMinBwQoSOvs.test_min_bw_qos_port_removed fails often recently.
Example of failure: https://storage.bhs.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_18a/740569/2/check/neutron-fullstack-with-uwsgi/18a1d60/testr_results.html

Logstash query:
http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%20%5C%22line%20739%2C%20in%20test_min_bw_qos_port_removed%5C%22

Stacktrace:

Traceback (most recent call last):
  File "/home/zuul/src/opendev.org/openstack/neutron/neutron/common/utils.py", line 704, in wait_until_true
    eventlet.sleep(sleep)
  File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack-gate/lib/python3.8/site-packages/eventlet/greenthread.py", line 36, in sleep
    hub.switch()
  File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack-gate/lib/python3.8/site-packages/eventlet/hubs/hub.py", line 313, in switch
    return self.greenlet.switch()
eventlet.timeout.Timeout: 60 seconds

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/base.py", line 182, in func
    return f(self, *args, **kwargs)
  File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/test_qos.py", line 739, in test_min_bw_qos_port_removed
    self._wait_for_min_bw_rule_removed(vm_qos, self.direction)
  File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/test_qos.py", line 623, in _wait_for_min_bw_rule_removed
    self._wait_for_min_bw_rule_applied(vm, None, direction)
  File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/test_qos.py", line 674, in _wait_for_min_bw_rule_applied
    utils.wait_until_true(
  File "/home/zuul/src/opendev.org/openstack/neutron/neutron/common/utils.py", line 709, in wait_until_true
    raise WaitTimeout(_("Timed out after %d seconds") % timeout)
neutron.common.utils.WaitTimeout: Timed out after 60 seconds

** Affects: neutron
     Importance: Critical
         Status: Confirmed


** Tags: fullstack gate-failure qos

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https://bugs.launchpad.net/bugs/1911643

Title:
  Fullstack test
  neutron.tests.fullstack.test_qos.TestMinBwQoSOvs.test_min_bw_qos_port_removed
  fails often

Status in neutron:
  Confirmed

Bug description:
  Test neutron.tests.fullstack.test_qos.TestMinBwQoSOvs.test_min_bw_qos_port_removed fails often recently.
  Example of failure: https://storage.bhs.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_18a/740569/2/check/neutron-fullstack-with-uwsgi/18a1d60/testr_results.html

  Logstash query:
  http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%20%5C%22line%20739%2C%20in%20test_min_bw_qos_port_removed%5C%22

  Stacktrace:

  Traceback (most recent call last):
    File "/home/zuul/src/opendev.org/openstack/neutron/neutron/common/utils.py", line 704, in wait_until_true
      eventlet.sleep(sleep)
    File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack-gate/lib/python3.8/site-packages/eventlet/greenthread.py", line 36, in sleep
      hub.switch()
    File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack-gate/lib/python3.8/site-packages/eventlet/hubs/hub.py", line 313, in switch
      return self.greenlet.switch()
  eventlet.timeout.Timeout: 60 seconds

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/base.py", line 182, in func
      return f(self, *args, **kwargs)
    File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/test_qos.py", line 739, in test_min_bw_qos_port_removed
      self._wait_for_min_bw_rule_removed(vm_qos, self.direction)
    File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/test_qos.py", line 623, in _wait_for_min_bw_rule_removed
      self._wait_for_min_bw_rule_applied(vm, None, direction)
    File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/test_qos.py", line 674, in _wait_for_min_bw_rule_applied
      utils.wait_until_true(
    File "/home/zuul/src/opendev.org/openstack/neutron/neutron/common/utils.py", line 709, in wait_until_true
      raise WaitTimeout(_("Timed out after %d seconds") % timeout)
  neutron.common.utils.WaitTimeout: Timed out after 60 seconds

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