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[Matt Riedemann <mriedem.os@xxxxxxxxx>]

Yes this job is using OVS. We start unplugging the vif here:

http://logs.openstack.org/93/462293/3/gate/gate-heat-dsvm-functional-
convg-mysql-lbaasv2-non-apache-ubuntu-
xenial/ea8c446/logs/screen-n-cpu.txt.gz?level=DEBUG#_Jun_06_05_25_10_121414

Then we start detaching the interface device from the guest here:

http://logs.openstack.org/93/462293/3/gate/gate-heat-dsvm-functional-
convg-mysql-lbaasv2-non-apache-ubuntu-
xenial/ea8c446/logs/screen-n-cpu.txt.gz?level=DEBUG#_Jun_06_05_25_10_249230

Then that fails eventually because the guest is gone:

http://logs.openstack.org/93/462293/3/gate/gate-heat-dsvm-functional-
convg-mysql-lbaasv2-non-apache-ubuntu-
xenial/ea8c446/logs/screen-n-cpu.txt.gz?level=DEBUG#_Jun_06_05_25_27_345226

You can see the instance being terminated at the same time:

http://logs.openstack.org/93/462293/3/gate/gate-heat-dsvm-functional-
convg-mysql-lbaasv2-non-apache-ubuntu-
xenial/ea8c446/logs/screen-n-cpu.txt.gz?level=DEBUG#_Jun_06_05_25_22_366871

So you get an ugly stacktrace in the logs but it should cause things to
fail, unless the test is expecting something it shouldn't.

** Changed in: nova
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1585858

Title:
  InterfaceDetachFailed: resources.server: Failed to detach interface

Status in heat:
  Triaged
Status in OpenStack Compute (nova):
  Invalid

Bug description:
  It seems the number of attempts to detach interfaces in not enough in
  some cases.

  heat_integrationtests.functional.test_create_update.UpdateStackTest.test_stack_update_with_replacing_userdata
  2016-05-25 10:37:16.151 | 2016-05-25 10:37:16.020 | -------------------------------------------------------------------------------------------------------------
  2016-05-25 10:37:16.151 | 2016-05-25 10:37:16.022 | 
  2016-05-25 10:37:16.152 | 2016-05-25 10:37:16.025 | Captured traceback:
  2016-05-25 10:37:16.152 | 2016-05-25 10:37:16.031 | ~~~~~~~~~~~~~~~~~~~
  2016-05-25 10:37:16.152 | 2016-05-25 10:37:16.034 |     Traceback (most recent call last):
  2016-05-25 10:37:16.152 | 2016-05-25 10:37:16.038 |       File "/opt/stack/new/heat/heat_integrationtests/functional/test_create_update.py", line 534, in test_stack_update_with_replacing_userdata
  2016-05-25 10:37:16.152 | 2016-05-25 10:37:16.040 |         parameters=parms_updated)
  2016-05-25 10:37:16.153 | 2016-05-25 10:37:16.044 |       File "/opt/stack/new/heat/heat_integrationtests/common/test.py", line 402, in update_stack
  2016-05-25 10:37:16.153 | 2016-05-25 10:37:16.046 |         self._wait_for_stack_status(**kwargs)
  2016-05-25 10:37:16.153 | 2016-05-25 10:37:16.048 |       File "/opt/stack/new/heat/heat_integrationtests/common/test.py", line 334, in _wait_for_stack_status
  2016-05-25 10:37:16.153 | 2016-05-25 10:37:16.051 |         fail_regexp):
  2016-05-25 10:37:16.153 | 2016-05-25 10:37:16.054 |       File "/opt/stack/new/heat/heat_integrationtests/common/test.py", line 295, in _verify_status
  2016-05-25 10:37:16.153 | 2016-05-25 10:37:16.056 |         stack_status_reason=stack.stack_status_reason)
  2016-05-25 10:37:16.154 | 2016-05-25 10:37:16.058 |     heat_integrationtests.common.exceptions.StackBuildErrorException: Stack UpdateStackTest-2129656241/3c284793-623d-47bd-901a-6d71e75bdbca is in UPDATE_FAILED status due to 'InterfaceDetachFailed: resources.server: Failed to detach interface (bdbc4a8c-114b-42c0-a49a-a27311f5f2e2) from server (259f3fff-6e38-4722-9a51-7c7166d78812)'

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