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[Numan Siddique <nusiddiq@xxxxxxxxxx>]

** Summary changed:

- tempest.api.network.test_dhcp_ipv6.NetworksTestDHCPv6.* tempest tests are failing repeatedly in the gate
+ tempest.api.network.test_dhcp_ipv6.NetworksTestDHCPv6.* tempest tests are failing repeatedly in the gate for networking-ovn

** Also affects: neutron
   Importance: Undecided
       Status: New

** Changed in: neutron
     Assignee: (unassigned) => Numan Siddique (numansiddique)

** No longer affects: neutron

** Also affects: neutron
   Importance: Undecided
       Status: New

** Changed in: neutron
     Assignee: (unassigned) => Numan Siddique (numansiddique)

** Changed in: neutron
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1550278

Title:
  tempest.api.network.test_dhcp_ipv6.NetworksTestDHCPv6.* tempest tests
  are failing repeatedly in the gate for networking-ovn

Status in networking-ovn:
  In Progress
Status in neutron:
  In Progress

Bug description:
  We are seeing a lot of tempest failures for the tests tempest.api.network.test_dhcp_ipv6.NetworksTestDHCPv6.* 
  with the below error.

  Either we should fix the error or at least disable these tests
  temporarily.

  
  t156.9: tempest.api.network.test_dhcp_ipv6.NetworksTestDHCPv6.test_dhcpv6_stateless_no_ra[id-ae2f4a5d-03ff-4c42-a3b0-ce2fcb7ea832]_StringException: Empty attachments:
    stderr
    stdout

  pythonlogging:'': {{{
  2016-02-26 07:29:46,168 4673 INFO     [tempest.lib.common.rest_client] Request (NetworksTestDHCPv6:test_dhcpv6_stateless_no_ra): 404 POST http://127.0.0.1:9696/v2.0/subnets 0.370s
  2016-02-26 07:29:46,169 4673 DEBUG    [tempest.lib.common.rest_client] Request - Headers: {'Content-Type': 'application/json', 'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}
          Body: {"subnet": {"cidr": "2003::/64", "ip_version": 6, "network_id": "4c7de56a-b059-4239-a5a0-94a53ba4929c", "gateway_ip": "2003::1", "ipv6_address_mode": "slaac"}}
      Response - Headers: {'content-length': '132', 'status': '404', 'date': 'Fri, 26 Feb 2016 07:29:46 GMT', 'connection': 'close', 'content-type': 'application/json; charset=UTF-8', 'x-openstack-request-id': 'req-e21f771f-1a16-452a-9429-8a01f0409ae3'}
          Body: {"NeutronError": {"message": "Port 598c23eb-1ae4-4010-a263-39f86240fd86 could not be found.", "type": "PortNotFound", "detail": ""}}
  2016-02-26 07:29:46,196 4673 INFO     [tempest.lib.common.rest_client] Request (NetworksTestDHCPv6:tearDown): 200 GET http://127.0.0.1:9696/v2.0/ports 0.024s
  2016-02-26 07:29:46,197 4673 DEBUG    [tempest.lib.common.rest_client] Request - Headers: {'Content-Type': 'application/json', 'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}
          Body: None
      Response - Headers: {'content-location': 'http://127.0.0.1:9696/v2.0/ports', 'content-length': '13', 'status': '200', 'date': 'Fri, 26 Feb 2016 07:29:46 GMT', 'connection': 'close', 'content-type': 'application/json; charset=UTF-8', 'x-openstack-request-id': 'req-f0966c23-c72f-4a6f-b113-5d88a6dd5912'}
          Body: {"ports": []}
  2016-02-26 07:29:46,250 4673 INFO     [tempest.lib.common.rest_client] Request (NetworksTestDHCPv6:tearDown): 200 GET http://127.0.0.1:9696/v2.0/subnets 0.052s
  2016-02-26 07:29:46,251 4673 DEBUG    [tempest.lib.common.rest_client] Request - Headers: {'Content-Type': 'application/json', 'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}
          Body: None
      Response - Headers: {'content-location': 'http://127.0.0.1:9696/v2.0/subnets', 'content-length': '457', 'status': '200', 'date': 'Fri, 26 Feb 2016 07:29:46 GMT', 'connection': 'close', 'content-type': 'application/json; charset=UTF-8', 'x-openstack-request-id': 'req-3b29ba53-9ae0-4c0f-8c18-ec12db7a6bde'}
          Body: {"subnets": [{"name": "", "enable_dhcp": true, "network_id": "4c7de56a-b059-4239-a5a0-94a53ba4929c", "tenant_id": "631f9cb1391d41b6aba109afe06bc51b", "dns_nameservers": [], "gateway_ip": "2003::1", "ipv6_ra_mode": null, "allocation_pools": [{"start": "2003::2", "end": "2003::ffff:ffff:ffff:ffff"}], "host_routes": [], "ip_version": 6, "ipv6_address_mode": "slaac", "cidr": "2003::/64", "id": "6bc2602c-2584-44cc-a6cd-b8af444f6403", "subnetpool_id": null}]}
  2016-02-26 07:29:46,293 4673 INFO     [tempest.lib.common.rest_client] Request (NetworksTestDHCPv6:tearDown): 200 GET http://127.0.0.1:9696/v2.0/routers 0.041s
  2016-02-26 07:29:46,293 4673 DEBUG    [tempest.lib.common.rest_client] Request - Headers: {'Content-Type': 'application/json', 'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}
          Body: None
      Response - Headers: {'content-location': 'http://127.0.0.1:9696/v2.0/routers', 'content-length': '15', 'status': '200', 'date': 'Fri, 26 Feb 2016 07:29:46 GMT', 'connection': 'close', 'content-type': 'application/json; charset=UTF-8', 'x-openstack-request-id': 'req-2b883ce9-b10f-4a49-a854-450c341f9cd9'}
          Body: {"routers": []}
  }}}

  Traceback (most recent call last):
    File "tempest/api/network/test_dhcp_ipv6.py", line 129, in test_dhcpv6_stateless_no_ra
      real_ip, eui_ip = self._get_ips_from_subnet(**kwargs)
    File "tempest/api/network/test_dhcp_ipv6.py", line 91, in _get_ips_from_subnet
      subnet = self.create_subnet(self.network, **kwargs)
    File "tempest/api/network/base.py", line 196, in create_subnet
      **kwargs)
    File "tempest/lib/services/network/subnets_client.py", line 21, in create_subnet
      return self.create_resource(uri, post_data)
    File "tempest/lib/services/network/base.py", line 60, in create_resource
      resp, body = self.post(req_uri, req_post_data)
    File "tempest/lib/common/rest_client.py", line 259, in post
      return self.request('POST', url, extra_headers, headers, body)
    File "tempest/lib/common/rest_client.py", line 642, in request
      resp, resp_body)
    File "tempest/lib/common/rest_client.py", line 695, in _error_checker
      raise exceptions.NotFound(resp_body, resp=resp)
  tempest.lib.exceptions.NotFound: Object not found
  Details: {u'message': u'Port 598c23eb-1ae4-4010-a263-39f86240fd86 could not be found.', u'detail': u'', u'type': u'PortNotFound'}

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