Comment 14 for bug 1707160

In the last failure, it's not neutron API but nova API that times out:

http://logs.openstack.org/99/489699/1/check/gate-grenade-dsvm-ironic-ubuntu-xenial/2e8b6fa/logs/testr_results.html.gz

The relevant log messages for the Nova API request start at:

http://logs.openstack.org/99/489699/1/check/gate-grenade-dsvm-ironic-ubuntu-xenial/2e8b6fa/logs/new/screen-n-api.txt.gz#_2017-08-02_17_40_21_213

2017-08-02 17:40:21.149 30615 DEBUG nova.osapi_compute.wsgi.server [req-84752f96-9ca4-43dd-86ed-64620eb7d8ca - -] (30615) accepted ('10.0.1.169', 52578) server /usr/local/lib/python2.7/dist-packages/eventlet/wsgi.py:883
2017-08-02 17:40:21.213 30615 DEBUG nova.api.openstack.wsgi [req-04a0710f-c696-415e-a2a7-1381bf0174b1 tempest-TestServerBasicOps-512068857 tempest-TestServerBasicOps-512068857] Action: 'create', calling method: <function version_select at 0x7f90a183bc08>, body: {"security_group": {"name": "tempest-TestServerBasicOps-722492525", "description": "tempest-TestServerBasicOps-722492525 description"}} _process_stack /opt/stack/new/nova/nova/api/openstack/wsgi.py:609
2017-08-02 17:40:21.619 30615 INFO nova.osapi_compute.wsgi.server [req-04a0710f-c696-415e-a2a7-1381bf0174b1 tempest-TestServerBasicOps-512068857 tempest-TestServerBasicOps-512068857] 10.0.1.169 "POST /v2.1/os-security-groups HTTP/1.1" status: 200 len: 637 time: 0.4696331
2017-08-02 17:40:21.623 30615 DEBUG nova.osapi_compute.wsgi.server [req-84752f96-9ca4-43dd-86ed-64620eb7d8ca - -] (30615) accepted ('10.0.1.169', 52582) server /usr/local/lib/python2.7/dist-packages/eventlet/wsgi.py:883
2017-08-02 17:40:21.651 30615 DEBUG nova.api.openstack.wsgi [req-983ceec8-1c1e-4d6e-b560-9f4aa358bf6a tempest-TestServerBasicOps-512068857 tempest-TestServerBasicOps-512068857] Action: 'create', calling method: <function version_select at 0x7f90a183b140>, body: {"security_group_rule": {"from_port": 22, "to_port": 22, "ip_protocol": "tcp", "cidr": "0.0.0.0/0", "parent_group_id": "1da383d4-6d09-451b-8e87-1d708803ae02"}} _process_stack /opt/stack/new/nova/nova/api/openstack/wsgi.py:609

There seems to be no completion for the request.