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[Bug 1605336] Re: Neutron loadbalancer VIP port fails to create

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Kiall Mac Innes <1605336@xxxxxxxxxxxxxxxxxx>
Date: Fri, 22 Jul 2016 15:26:18 -0000
Reply-to: Bug 1605336 <1605336@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
The stack trace indicates this is a Neutron issue, likely cause by enabling Designate/DNS integration, but still within Neutron / before Designate is called. I've added an affects Neutron.
 

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

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https://bugs.launchpad.net/bugs/1605336

Title:
  Neutron loadbalancer VIP port fails to create

Status in Designate:
  New
Status in OpenStack Neutron LBaaS Integration:
  New
Status in neutron:
  New

Bug description:
  When trying to create a Loadbalancer (v1) VIP with the command:

      neutron lb-vip-create --address 10.97.0.254 --name vip-97 \
          --protocol-port 22 --protocol TCP --subnet-id subnet-97 hapool-97

  Where subnet-97 is a subnet to tenant-97, which have 'dns_domain' set
  to an existing domain. The domain works - creating an instance +
  floating IP on that will register the set dns_name in the domain.

  However, the lb-vip-create will fail with

      Request Failed: internal server error while processing your request.
      Neutron server returns request_ids: ['req-ee6a68f1-ed8a-4f22-9dea-646fb97ff795']

  and the log will say:

      ==> /var/log/neutron/neutron-server.log <==
      2016-07-21 18:08:54.940 7926 INFO neutron.wsgi [req-cc53af04-89fc-482c-8a4f-0a3f5cc2e614 4b0e25c70d2b4ad6ba4c50250f2f0b0b 04ee0e71babe4fd7aa16c3f64a8fca89 - - -] 10.0.4.1 - - [21/Jul/2016 18:08:54] "GET /v2.0/lb/pools.json?fields=id&name=hapool-97 HTTP/1.1" 200 257 0.070421
      2016-07-21 18:08:55.027 7926 INFO neutron.wsgi [req-e95bbb13-c38e-4cdf-afc5-9bba3351b8ff 4b0e25c70d2b4ad6ba4c50250f2f0b0b 04ee0e71babe4fd7aa16c3f64a8fca89 - - -] 10.0.4.1 - - [21/Jul/2016 18:08:55] "GET /v2.0/subnets.json?fields=id&name=subnet-97 HTTP/1.1" 200 259 0.081731
      2016-07-21 18:08:55.037 7926 INFO neutron.quota [req-ee6a68f1-ed8a-4f22-9dea-646fb97ff795 4b0e25c70d2b4ad6ba4c50250f2f0b0b 04ee0e71babe4fd7aa16c3f64a8fca89 - - -] Loaded quota_driver: <neutron.db.quota.driver.DbQuotaDriver object at 0x7f37d17c4f90>.
      2016-07-21 18:08:55.494 7926 INFO neutron.plugins.ml2.managers [req-ee6a68f1-ed8a-4f22-9dea-646fb97ff795 4b0e25c70d2b4ad6ba4c50250f2f0b0b 04ee0e71babe4fd7aa16c3f64a8fca89 - - -] Extension driver 'dns' failed in process_create_port
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource [req-ee6a68f1-ed8a-4f22-9dea-646fb97ff795 4b0e25c70d2b4ad6ba4c50250f2f0b0b 04ee0e71babe4fd7aa16c3f64a8fca89 - - -] create failed
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource Traceback (most recent call last):
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron/api/v2/resource.py", line 84, in resource
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     result = method(request=request, **args)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron/api/v2/base.py", line 410, in create
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     return self._create(request, body, **kwargs)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/oslo_db/api.py", line 148, in wrapper
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     ectxt.value = e.inner_exc
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 221, in __exit__
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     self.force_reraise()
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 197, in force_reraise
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     six.reraise(self.type_, self.value, self.tb)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/oslo_db/api.py", line 138, in wrapper
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     return f(*args, **kwargs)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron/api/v2/base.py", line 521, in _create
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     obj = do_create(body)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron/api/v2/base.py", line 503, in do_create
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     request.context, reservation.reservation_id)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 221, in __exit__
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     self.force_reraise()
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 197, in force_reraise
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     six.reraise(self.type_, self.value, self.tb)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron/api/v2/base.py", line 496, in do_create
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     return obj_creator(request.context, **kwargs)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron_lbaas/services/loadbalancer/plugin.py", line 147, in create_vip
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     v = super(LoadBalancerPlugin, self).create_vip(context, vip)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron_lbaas/db/loadbalancer/loadbalancer_db.py", line 404, in create_vip
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     context.session.flush()
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 221, in __exit__
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     self.force_reraise()
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 197, in force_reraise
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     six.reraise(self.type_, self.value, self.tb)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron_lbaas/db/loadbalancer/loadbalancer_db.py", line 399, in create_vip
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     context, vip_db, v['subnet_id'], v.get('address'))
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron_lbaas/db/loadbalancer/loadbalancer_db.py", line 346, in _create_port_for_vip
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     port = self._core_plugin.create_port(context, {'port': port_data})
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/plugin.py", line 1096, in create_port
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     result, mech_context = self._create_port_db(context, port)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/plugin.py", line 1068, in _create_port_db
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     self.extension_manager.process_create_port(context, attrs, result)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/managers.py", line 858, in process_create_port
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     data, result)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/managers.py", line 833, in _call_on_ext_drivers
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     {'name': driver.name, 'method': method_name})
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 221, in __exit__
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     self.force_reraise()
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 197, in force_reraise
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     six.reraise(self.type_, self.value, self.tb)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/managers.py", line 828, in _call_on_ext_drivers
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     getattr(driver.obj, method_name)(plugin_context, data, result)
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/extensions/dns_integration.py", line 78, in process_create_port
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource     if not request_data[dns.DNSNAME]:
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource KeyError: 'dns_name'
      2016-07-21 18:08:55.719 7926 ERROR neutron.api.v2.resource
      2016-07-21 18:08:55.728 7926 INFO neutron.wsgi [req-ee6a68f1-ed8a-4f22-9dea-646fb97ff795 4b0e25c70d2b4ad6ba4c50250f2f0b0b 04ee0e71babe4fd7aa16c3f64a8fca89 - - -] 10.0.4.1 - - [21/Jul/2016 18:08:55] "POST /v2.0/lb/vips.json HTTP/1.1" 500 368 0.695096

  I'm somewhat unsure if this a problem with Designate or Neutron (the
  log DO say Neutron), but on the other hand, this worked just fine
  before I added Designate to the mix.. Feel free to reassign to
  Neutron.

  This is Neutron v4.2.0 and Designate v2.1.0 on Debian GNU/Linux
  Sid/Unstable - Mitaka.

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