Breaks down functional test 'test_download_image_raises_service_unavailable' on gate-glance-python27 job.

[Alexey Galkin]

Breaks down functional test 'test_download_image_raises_service_unavailable' on gate-glance-python27 job.
I think it's a "floating" bug.

http://logs.openstack.org/58/238358/8/check/gate-glance-python27/0c54ead/testr_results.html.gz

ft1.783: glance.tests.functional.v2.test_images.TestImages.test_download_image_raises_service_unavailable_StringException: Traceback (most recent call last):
  File "glance/tests/functional/v2/test_images.py", line 864, in test_download_image_raises_service_unavailable
    self.assertEqual(503, response.status_code)
  File "/home/jenkins/workspace/gate-glance-python27/.tox/py27/local/lib/python2.7/site-packages/testtools/testcase.py", line 350, in assertEqual
    self.assertThat(observed, matcher, message)
  File "/home/jenkins/workspace/gate-glance-python27/.tox/py27/local/lib/python2.7/site-packages/testtools/testcase.py", line 435, in assertThat
    raise mismatch_error
testtools.matchers._impl.MismatchError: 503 != 500

[Kairat Kushaev (kkushaev)]

I notices this has failed on stable/liberty:
https://review.openstack.org/#/c/238358/

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/240900

[OpenStack Infra (hudson-openstack)]

Change abandoned by Glance Bot (<email address hidden>) on branch: master
Review: https://review.openstack.org/240900

[Cyril Roelandt (cyril-roelandt)]

Python2.7 is long gone, and we have not noticed this failure recently, I'll close this bug. Feel free to reopen if needed.