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[Bug 1426397] [NEW] tempest.scenario.test_network_v6.TestGettingAddress.test_slaac_from_os intermittently fails with MismatchError

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Public bug reported:

http://logs.openstack.org/63/155863/1/gate/gate-tempest-dsvm-neutron-
full/7d13276/console.html#_2015-02-26_20_24_10_382

2015-02-26 20:24:10.382 | tempest.scenario.test_network_v6.TestGettingAddress.test_slaac_from_os[compute,network]
2015-02-26 20:24:10.382 | ---------------------------------------------------------------------------------------
2015-02-26 20:24:10.382 | 
2015-02-26 20:24:10.382 | Captured traceback:
2015-02-26 20:24:10.383 | ~~~~~~~~~~~~~~~~~~~
2015-02-26 20:24:10.383 |     Traceback (most recent call last):
2015-02-26 20:24:10.383 |       File "tempest/test.py", line 109, in wrapper
2015-02-26 20:24:10.383 |         return f(self, *func_args, **func_kwargs)
2015-02-26 20:24:10.383 |       File "tempest/scenario/test_network_v6.py", line 147, in test_slaac_from_os
2015-02-26 20:24:10.383 |         self._prepare_and_test(address6_mode='slaac')
2015-02-26 20:24:10.383 |       File "tempest/scenario/test_network_v6.py", line 128, in _prepare_and_test
2015-02-26 20:24:10.383 |         self.assertIn(srv2['accessIPv6'], result)
2015-02-26 20:24:10.383 |       File "/opt/stack/new/tempest/.tox/full/local/lib/python2.7/site-packages/testtools/testcase.py", line 354, in assertIn
2015-02-26 20:24:10.383 |         self.assertThat(haystack, Contains(needle), message)
2015-02-26 20:24:10.383 |       File "/opt/stack/new/tempest/.tox/full/local/lib/python2.7/site-packages/testtools/testcase.py", line 433, in assertThat
2015-02-26 20:24:10.384 |         raise mismatch_error
2015-02-26 20:24:10.384 |     MismatchError: u'2003::f816:3eff:fec2:f2a4' not in '1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue \n    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\n    inet 127.0.0.1/8 scope host lo\n    inet6 ::1/128 scope host \n       valid_lft forever preferred_lft forever\n2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000\n    link/ether fa:16:3e:c2:f2:a4 brd ff:ff:ff:ff:ff:ff\n    inet 10.100.0.4/28 brd 10.100.0.15 scope global eth0\n    inet6 fe80::f816:3eff:fec2:f2a4/64 scope link \n       valid_lft forever preferred_lft forever\n'
2015-02-26 20:24:10.384 |     Traceback (most recent call last):
2015-02-26 20:24:10.384 |     _StringException: Empty attachments:
2015-02-26 20:24:10.384 |       stderr
2015-02-26 20:24:10.384 |       stdout

Looks like this started around 2/25:

http://logstash.openstack.org/#eyJzZWFyY2giOiJtZXNzYWdlOlwiTWlzbWF0Y2hFcnJvclwiIEFORCBtZXNzYWdlOlwiOjpcIiBBTkQgbWVzc2FnZTpcIm5vdCBpblwiIEFORCBtZXNzYWdlOlwiaW5ldDZcIiBBTkQgbWVzc2FnZTpcInNjb3BlIGxpbmtcIiBBTkQgbWVzc2FnZTpcInZhbGlkX2xmdCBmb3JldmVyIHByZWZlcnJlZF9sZnQgZm9yZXZlclwiIiwiZmllbGRzIjpbXSwib2Zmc2V0IjowLCJ0aW1lZnJhbWUiOiI2MDQ4MDAiLCJncmFwaG1vZGUiOiJjb3VudCIsInRpbWUiOnsidXNlcl9pbnRlcnZhbCI6MH0sInN0YW1wIjoxNDI1MDQ4MDgyOTk3fQ==

** Affects: neutron
     Importance: Undecided
     Assignee: Henry Gessau (gessau)
         Status: New

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https://bugs.launchpad.net/bugs/1426397

Title:
  tempest.scenario.test_network_v6.TestGettingAddress.test_slaac_from_os
  intermittently fails with MismatchError

Status in OpenStack Neutron (virtual network service):
  New

Bug description:
  http://logs.openstack.org/63/155863/1/gate/gate-tempest-dsvm-neutron-
  full/7d13276/console.html#_2015-02-26_20_24_10_382

  2015-02-26 20:24:10.382 | tempest.scenario.test_network_v6.TestGettingAddress.test_slaac_from_os[compute,network]
  2015-02-26 20:24:10.382 | ---------------------------------------------------------------------------------------
  2015-02-26 20:24:10.382 | 
  2015-02-26 20:24:10.382 | Captured traceback:
  2015-02-26 20:24:10.383 | ~~~~~~~~~~~~~~~~~~~
  2015-02-26 20:24:10.383 |     Traceback (most recent call last):
  2015-02-26 20:24:10.383 |       File "tempest/test.py", line 109, in wrapper
  2015-02-26 20:24:10.383 |         return f(self, *func_args, **func_kwargs)
  2015-02-26 20:24:10.383 |       File "tempest/scenario/test_network_v6.py", line 147, in test_slaac_from_os
  2015-02-26 20:24:10.383 |         self._prepare_and_test(address6_mode='slaac')
  2015-02-26 20:24:10.383 |       File "tempest/scenario/test_network_v6.py", line 128, in _prepare_and_test
  2015-02-26 20:24:10.383 |         self.assertIn(srv2['accessIPv6'], result)
  2015-02-26 20:24:10.383 |       File "/opt/stack/new/tempest/.tox/full/local/lib/python2.7/site-packages/testtools/testcase.py", line 354, in assertIn
  2015-02-26 20:24:10.383 |         self.assertThat(haystack, Contains(needle), message)
  2015-02-26 20:24:10.383 |       File "/opt/stack/new/tempest/.tox/full/local/lib/python2.7/site-packages/testtools/testcase.py", line 433, in assertThat
  2015-02-26 20:24:10.384 |         raise mismatch_error
  2015-02-26 20:24:10.384 |     MismatchError: u'2003::f816:3eff:fec2:f2a4' not in '1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue \n    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\n    inet 127.0.0.1/8 scope host lo\n    inet6 ::1/128 scope host \n       valid_lft forever preferred_lft forever\n2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000\n    link/ether fa:16:3e:c2:f2:a4 brd ff:ff:ff:ff:ff:ff\n    inet 10.100.0.4/28 brd 10.100.0.15 scope global eth0\n    inet6 fe80::f816:3eff:fec2:f2a4/64 scope link \n       valid_lft forever preferred_lft forever\n'
  2015-02-26 20:24:10.384 |     Traceback (most recent call last):
  2015-02-26 20:24:10.384 |     _StringException: Empty attachments:
  2015-02-26 20:24:10.384 |       stderr
  2015-02-26 20:24:10.384 |       stdout

  Looks like this started around 2/25:

  http://logstash.openstack.org/#eyJzZWFyY2giOiJtZXNzYWdlOlwiTWlzbWF0Y2hFcnJvclwiIEFORCBtZXNzYWdlOlwiOjpcIiBBTkQgbWVzc2FnZTpcIm5vdCBpblwiIEFORCBtZXNzYWdlOlwiaW5ldDZcIiBBTkQgbWVzc2FnZTpcInNjb3BlIGxpbmtcIiBBTkQgbWVzc2FnZTpcInZhbGlkX2xmdCBmb3JldmVyIHByZWZlcnJlZF9sZnQgZm9yZXZlclwiIiwiZmllbGRzIjpbXSwib2Zmc2V0IjowLCJ0aW1lZnJhbWUiOiI2MDQ4MDAiLCJncmFwaG1vZGUiOiJjb3VudCIsInRpbWUiOnsidXNlcl9pbnRlcnZhbCI6MH0sInN0YW1wIjoxNDI1MDQ4MDgyOTk3fQ==

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