oslo.db 4.13.2 breaks gate

[gordon chung]

see: https://review.openstack.org/#/c/366362/

2016-09-06 19:31:01.909129 | Captured traceback:
2016-09-06 19:31:01.909141 | ~~~~~~~~~~~~~~~~~~~
2016-09-06 19:31:01.909169 | Traceback (most recent call last):
2016-09-06 19:31:01.909215 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/gabbi/case.py", line 93, in wrapper
2016-09-06 19:31:01.909229 | func(self)
2016-09-06 19:31:01.909272 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/gabbi/case.py", line 140, in test_request
2016-09-06 19:31:01.909288 | self._run_test()
2016-09-06 19:31:01.909332 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/gabbi/case.py", line 398, in _run_test
2016-09-06 19:31:01.909345 | redirect=test['redirects'])
2016-09-06 19:31:01.909388 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/gabbi/case.py", line 334, in _run_request
2016-09-06 19:31:01.909399 | exc.traceback)
2016-09-06 19:31:01.909443 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/wsgi_intercept/__init__.py", line 428, in makefile
2016-09-06 19:31:01.909464 | app_result = self.app(environ, start_response)
2016-09-06 19:31:01.909506 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/paste/urlmap.py", line 216, in __call__
2016-09-06 19:31:01.909521 | return app(environ, start_response)
2016-09-06 19:31:01.909563 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/webob/dec.py", line 130, in __call__
2016-09-06 19:31:01.909581 | resp = self.call_func(req, *args, **self.kwargs)
2016-09-06 19:31:01.909622 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/webob/dec.py", line 195, in call_func
2016-09-06 19:31:01.909638 | return self.func(req, *args, **kwargs)
2016-09-06 19:31:01.909682 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/oslo_middleware/base.py", line 126, in __call__
2016-09-06 19:31:01.909699 | response = req.get_response(self.application)
2016-09-06 19:31:01.909741 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/webob/request.py", line 1299, in send
2016-09-06 19:31:01.909756 | application, catch_exc_info=False)
2016-09-06 19:31:01.909800 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/webob/request.py", line 1263, in call_application
2016-09-06 19:31:01.909819 | app_iter = application(self.environ, start_response)
2016-09-06 19:31:01.909860 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/webob/exc.py", line 1162, in __call__
2016-09-06 19:31:01.909878 | return self.application(environ, start_response)
2016-09-06 19:31:01.909895 | File "gnocchi/rest/app.py", line 68, in __call__
2016-09-06 19:31:01.909912 | return self.app(environ, start_response)
2016-09-06 19:31:01.909957 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/pecan/middleware/recursive.py", line 56, in __call__
2016-09-06 19:31:01.909975 | return self.application(environ, start_response)
2016-09-06 19:31:01.910016 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/pecan/core.py", line 835, in __call__
2016-09-06 19:31:01.910036 | return super(Pecan, self).__call__(environ, start_response)
2016-09-06 19:31:01.910078 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/pecan/core.py", line 678, in __call__
2016-09-06 19:31:01.910097 | self.invoke_controller(controller, args, kwargs, state)
2016-09-06 19:31:01.910141 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/pecan/core.py", line 569, in invoke_controller
2016-09-06 19:31:01.910159 | result = controller(*args, **kwargs)
2016-09-06 19:31:01.910178 | File "gnocchi/rest/__init__.py", line 976, in get_all
2016-09-06 19:31:01.910189 | **pagination_opts
2016-09-06 19:31:01.910230 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/oslo_db/api.py", line 151, in wrapper
2016-09-06 19:31:01.910262 | ectxt.value = e.inner_exc
2016-09-06 19:31:01.910310 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2016-09-06 19:31:01.910323 | self.force_reraise()
2016-09-06 19:31:01.910369 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
2016-09-06 19:31:01.910387 | six.reraise(self.type_, self.value, self.tb)
2016-09-06 19:31:01.910430 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/oslo_db/api.py", line 139, in wrapper
2016-09-06 19:31:01.910443 | return f(*args, **kwargs)
2016-09-06 19:31:01.910465 | File "gnocchi/indexer/sqlalchemy.py", line 900, in list_resources
2016-09-06 19:31:01.910477 | sort_dirs=sort_dirs)
2016-09-06 19:31:01.910524 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/oslo_db/sqlalchemy/utils.py", line 164, in paginate_query
2016-09-06 19:31:01.910545 | if _stable_sorting_order(model, sort_keys) is False:
2016-09-06 19:31:01.910595 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/oslo_db/sqlalchemy/utils.py", line 120, in _stable_sorting_order
2016-09-06 19:31:01.910612 | keys = _get_unique_keys(model)
2016-09-06 19:31:01.910671 | File "/home/jenkins/workspace/gate-gnocchi-tox-db-py27-mysql-ubuntu-xenial/.tox/py27-mysql/local/lib/python2.7/site-packages/oslo_db/sqlalchemy/utils.py", line 88, in _get_unique_keys
2016-09-06 19:31:01.910682 | info = table.info
2016-09-06 19:31:01.910700 | AttributeError: 'Join' object has no attribute 'info'

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/366411

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/366411
Committed: https://git.openstack.org/cgit/openstack/gnocchi/commit/?id=b2d64d26acd0f525ef45721f3a07b269eec48e3d
Submitter: Jenkins
Branch: master

commit b2d64d26acd0f525ef45721f3a07b269eec48e3d
Author: gord chung <email address hidden>
Date: Tue Sep 6 22:49:31 2016 +0000

    block oslo.db 4.13.2

    it's broken.

    Change-Id: I06989336f90ae74f38a23276eda4ed688b5a51bd
    Partial-Bug: #1620848

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/2.1
Review: https://review.openstack.org/367463

[OpenStack Infra (hudson-openstack)]

Change abandoned by Julien Danjou (<email address hidden>) on branch: stable/2.1
Review: https://review.openstack.org/367463