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[Slawek Kaplonski <1886956@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Test
neutron.tests.functional.test_server.TestWsgiServer.test_restart_wsgi_on_sighup_multiple_workers
is failing from time to time.

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

Failure example:
https://f7a63aeb9edd557a2176-4740624f0848c8c3257f704064a4516f.ssl.cf2.rackcdn.com/736026/4/gate
/neutron-functional/d7d5c47/testr_results.html

ft1.1: neutron.tests.functional.test_server.TestWsgiServer.test_restart_wsgi_on_sighup_multiple_workerstesttools.testresult.real._StringException: 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-functional/lib/python3.6/site-packages/eventlet/greenthread.py", line 36, in sleep
    hub.switch()
  File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-functional/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 298, in switch
    return self.greenlet.switch()
eventlet.timeout.Timeout: 5 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/functional/test_server.py", line 237, in test_restart_wsgi_on_sighup_multiple_workers
    workers=2)
  File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/functional/test_server.py", line 163, in _test_restart_service_on_sighup
    utils.wait_until_true(condition, timeout=5, sleep=1)
  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 5 seconds

** Affects: neutron
     Importance: High
     Assignee: Slawek Kaplonski (slaweq)
         Status: Confirmed


** Tags: functional-tests gate-failure

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https://bugs.launchpad.net/bugs/1886956

Title:
  Functional test test_restart_wsgi_on_sighup_multiple_workers is
  failing sometimes

Status in neutron:
  Confirmed

Bug description:
  Test
  neutron.tests.functional.test_server.TestWsgiServer.test_restart_wsgi_on_sighup_multiple_workers
  is failing from time to time.

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

  Failure example:
  https://f7a63aeb9edd557a2176-4740624f0848c8c3257f704064a4516f.ssl.cf2.rackcdn.com/736026/4/gate
  /neutron-functional/d7d5c47/testr_results.html

  ft1.1: neutron.tests.functional.test_server.TestWsgiServer.test_restart_wsgi_on_sighup_multiple_workerstesttools.testresult.real._StringException: 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-functional/lib/python3.6/site-packages/eventlet/greenthread.py", line 36, in sleep
      hub.switch()
    File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-functional/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 298, in switch
      return self.greenlet.switch()
  eventlet.timeout.Timeout: 5 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/functional/test_server.py", line 237, in test_restart_wsgi_on_sighup_multiple_workers
      workers=2)
    File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/functional/test_server.py", line 163, in _test_restart_service_on_sighup
      utils.wait_until_true(condition, timeout=5, sleep=1)
    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 5 seconds

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