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[Slawek Kaplonski <1737892@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

It looks that this test fails every time with same reason:

2017-12-13 05:29:35.846 | Captured traceback:
2017-12-13 05:29:35.848 | ~~~~~~~~~~~~~~~~~~~
2017-12-13 05:29:35.850 |     Traceback (most recent call last):
2017-12-13 05:29:35.852 |       File "neutron/tests/base.py", line 132, in func
2017-12-13 05:29:35.854 |         return f(self, *args, **kwargs)
2017-12-13 05:29:35.856 |       File "neutron/tests/fullstack/test_qos.py", line 237, in test_bw_limit_qos_port_removed
2017-12-13 05:29:35.858 |         self._wait_for_bw_rule_removed(vm, self.direction)
2017-12-13 05:29:35.860 |       File "neutron/tests/fullstack/test_qos.py", line 121, in _wait_for_bw_rule_removed
2017-12-13 05:29:35.862 |         self._wait_for_bw_rule_applied(vm, None, None, direction)
2017-12-13 05:29:35.864 |       File "neutron/tests/fullstack/test_qos.py", line 219, in _wait_for_bw_rule_applied
2017-12-13 05:29:35.866 |         lambda: vm.bridge.get_ingress_bw_limit_for_port(
2017-12-13 05:29:35.868 |       File "neutron/common/utils.py", line 632, in wait_until_true
2017-12-13 05:35:14.907 |         raise WaitTimeout("Timed out after %d seconds" % timeout)
2017-12-13 05:35:14.909 |     neutron.common.utils.WaitTimeout: Timed out after 60 seconds

Example fail: http://logs.openstack.org/73/519573/12/check/legacy-
neutron-dsvm-fullstack/f27cbf9/logs/devstack-gate-
post_test_hook.txt#_2017-12-13_05_29_35_842

It failed 16 times in 24h between 9:00 12.12.2017 and 9:00 13.12.2017:
http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22neutron.tests.fullstack.test_qos.TestBwLimitQoSOvs.test_bw_limit_qos_port_removed%5C%22%20AND%20message%3A%5C%22FAILED%5C%22

** Affects: neutron
     Importance: High
         Status: Confirmed


** Tags: fullstack gate-failure qos

** Changed in: neutron
       Status: New => Confirmed

** Changed in: neutron
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1737892

Title:
  Fullstack test
  test_qos.TestBwLimitQoSOvs.test_bw_limit_qos_port_removed failing many
  times

Status in neutron:
  Confirmed

Bug description:
  It looks that this test fails every time with same reason:

  2017-12-13 05:29:35.846 | Captured traceback:
  2017-12-13 05:29:35.848 | ~~~~~~~~~~~~~~~~~~~
  2017-12-13 05:29:35.850 |     Traceback (most recent call last):
  2017-12-13 05:29:35.852 |       File "neutron/tests/base.py", line 132, in func
  2017-12-13 05:29:35.854 |         return f(self, *args, **kwargs)
  2017-12-13 05:29:35.856 |       File "neutron/tests/fullstack/test_qos.py", line 237, in test_bw_limit_qos_port_removed
  2017-12-13 05:29:35.858 |         self._wait_for_bw_rule_removed(vm, self.direction)
  2017-12-13 05:29:35.860 |       File "neutron/tests/fullstack/test_qos.py", line 121, in _wait_for_bw_rule_removed
  2017-12-13 05:29:35.862 |         self._wait_for_bw_rule_applied(vm, None, None, direction)
  2017-12-13 05:29:35.864 |       File "neutron/tests/fullstack/test_qos.py", line 219, in _wait_for_bw_rule_applied
  2017-12-13 05:29:35.866 |         lambda: vm.bridge.get_ingress_bw_limit_for_port(
  2017-12-13 05:29:35.868 |       File "neutron/common/utils.py", line 632, in wait_until_true
  2017-12-13 05:35:14.907 |         raise WaitTimeout("Timed out after %d seconds" % timeout)
  2017-12-13 05:35:14.909 |     neutron.common.utils.WaitTimeout: Timed out after 60 seconds

  Example fail: http://logs.openstack.org/73/519573/12/check/legacy-
  neutron-dsvm-fullstack/f27cbf9/logs/devstack-gate-
  post_test_hook.txt#_2017-12-13_05_29_35_842

  It failed 16 times in 24h between 9:00 12.12.2017 and 9:00 13.12.2017:
  http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22neutron.tests.fullstack.test_qos.TestBwLimitQoSOvs.test_bw_limit_qos_port_removed%5C%22%20AND%20message%3A%5C%22FAILED%5C%22

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