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[Bug 1891309] Re: Designate integration - internal server error in Neutron

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: OpenStack Infra <1891309@xxxxxxxxxxxxxxxxxx>
Date: Wed, 05 May 2021 02:09:52 -0000
Reply-to: Bug 1891309 <1891309@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Reviewed:  https://review.opendev.org/c/openstack/neutron/+/746910
Committed: https://opendev.org/openstack/neutron/commit/ca1c6fd69bda5f392712a8a966bf4f9b85ecb57a
Submitter: "Zuul (22348)"
Branch:    master

commit ca1c6fd69bda5f392712a8a966bf4f9b85ecb57a
Author: Jens Harbott <j.harbott@xxxxxxxx>
Date:   Wed Aug 19 14:39:35 2020 +0200

    designate: allow PTR zone creation to fail
    
    When multiple PTR records are created at the same time, Neutron may try
    to create the same zone multiple times, resulting in a conflict. Ignore
    the resulting error instead and try to create the record anyway.
    
    Change-Id: I59b0f99463ab00743f19016a890561916df900ed
    Closes-Bug: 1891309


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1891309

Title:
  Designate integration - internal server error in Neutron

Status in neutron:
  Fix Released

Bug description:
  I found in the neutron-tempest-plugin-designate-scenario job that test
  neutron_tempest_plugin.scenario.test_dns_integration.DNSIntegrationTests.test_fip
  failed due to internal server error in Neutron server.

  Failed job: https://fc098855e3982674115d-
  9f073b45b43178f46f80f0c5ee75fe29.ssl.cf5.rackcdn.com/640258/26/check
  /neutron-tempest-plugin-designate-scenario/db9e07e/testr_results.html

  In neutron server logs I can see:

  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource [None req-b440f68b-a3e2-4da5-8e2a-dfbb1331855b tempest-DNSIntegrationTests-1379368462 tempest-DNSIntegrationTests-1379368462] create failed: No details.: designateclient.exceptions.Conflict: Duplicate Zone
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource Traceback (most recent call last):
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/opt/stack/neutron/neutron/services/externaldns/drivers/designate/driver.py", line 124, in create_record_set
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     [recordset_name])
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/designateclient/v2/recordsets.py", line 46, in create
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     name, zone_info = self._canonicalize_record_name(zone, name)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/designateclient/v2/recordsets.py", line 30, in _canonicalize_record_name
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     zone_info = self.client.zones.get(zone)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/designateclient/v2/zones.py", line 54, in get
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     zone = v2_utils.resolve_by_name(self.list, zone)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/designateclient/v2/utils.py", line 40, in resolve_by_name
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     raise exceptions.NotFound("Name %s didn't resolve" % name)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource designateclient.exceptions.NotFound: Name 5.24.172.in-addr.arpa. didn't resolve
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource 
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource During handling of the above exception, another exception occurred:
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource 
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource Traceback (most recent call last):
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/opt/stack/neutron/neutron/api/v2/resource.py", line 98, in resource
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     result = method(request=request, **args)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/opt/stack/neutron/neutron/api/v2/base.py", line 437, in create
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     return self._create(request, body, **kwargs)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/neutron_lib/db/api.py", line 139, in wrapped
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     setattr(e, '_RETRY_EXCEEDED', True)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     self.force_reraise()
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     six.reraise(self.type_, self.value, self.tb)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/six.py", line 703, in reraise
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     raise value
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/neutron_lib/db/api.py", line 135, in wrapped
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     return f(*args, **kwargs)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_db/api.py", line 154, in wrapper
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     ectxt.value = e.inner_exc
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     self.force_reraise()
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     six.reraise(self.type_, self.value, self.tb)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/six.py", line 703, in reraise
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     raise value
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_db/api.py", line 142, in wrapper
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     return f(*args, **kwargs)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/neutron_lib/db/api.py", line 183, in wrapped
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     LOG.debug("Retry wrapper got retriable exception: %s", e)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     self.force_reraise()
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     six.reraise(self.type_, self.value, self.tb)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/six.py", line 703, in reraise
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     raise value
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/neutron_lib/db/api.py", line 179, in wrapped
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     return f(*dup_args, **dup_kwargs)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/opt/stack/neutron/neutron/api/v2/base.py", line 556, in _create
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     obj = do_create(body)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/opt/stack/neutron/neutron/api/v2/base.py", line 538, in do_create
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     request.context, reservation.reservation_id)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     self.force_reraise()
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     six.reraise(self.type_, self.value, self.tb)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/six.py", line 703, in reraise
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     raise value
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/opt/stack/neutron/neutron/api/v2/base.py", line 531, in do_create
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     return obj_creator(request.context, **kwargs)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/opt/stack/neutron/neutron/services/l3_router/l3_router_plugin.py", line 185, in create_floatingip
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     initial_status=n_const.FLOATINGIP_STATUS_DOWN)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/neutron_lib/db/api.py", line 233, in wrapped
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     return method(*args, **kwargs)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/neutron_lib/db/api.py", line 139, in wrapped
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     setattr(e, '_RETRY_EXCEEDED', True)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     self.force_reraise()
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     six.reraise(self.type_, self.value, self.tb)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/six.py", line 703, in reraise
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     raise value
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/neutron_lib/db/api.py", line 135, in wrapped
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     return f(*args, **kwargs)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_db/api.py", line 154, in wrapper
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     ectxt.value = e.inner_exc
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     self.force_reraise()
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     six.reraise(self.type_, self.value, self.tb)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/six.py", line 703, in reraise
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     raise value
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_db/api.py", line 142, in wrapper
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     return f(*args, **kwargs)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/neutron_lib/db/api.py", line 183, in wrapped
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     LOG.debug("Retry wrapper got retriable exception: %s", e)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     self.force_reraise()
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     six.reraise(self.type_, self.value, self.tb)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/six.py", line 703, in reraise
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     raise value
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/neutron_lib/db/api.py", line 179, in wrapped
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     return f(*dup_args, **dup_kwargs)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/opt/stack/neutron/neutron/db/l3_dvr_db.py", line 1141, in create_floatingip
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     context, floatingip, initial_status)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/opt/stack/neutron/neutron/db/l3_db.py", line 1377, in _create_floatingip
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     dns_data)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/opt/stack/neutron/neutron/db/dns_db.py", line 117, in _process_dns_floatingip_create_postcommit
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     [floatingip_data['floating_ip_address']])
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/opt/stack/neutron/neutron/db/dns_db.py", line 247, in _add_ips_to_external_dns_service
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     ips)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/opt/stack/neutron/neutron/services/externaldns/drivers/designate/driver.py", line 128, in create_record_set
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     description=in_addr_zone_description)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/designateclient/v2/zones.py", line 46, in create
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     return self._post('/zones', data=data)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/designateclient/client.py", line 58, in _post
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     resp, body = self.client.session.post(url, **kwargs)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/keystoneauth1/adapter.py", line 401, in post
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     return self.request(url, 'POST', **kwargs)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource   File "/usr/local/lib/python3.6/dist-packages/designateclient/v2/client.py", line 97, in request
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource     raise exceptions.Conflict(**response_payload)
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource designateclient.exceptions.Conflict: Duplicate Zone
  Aug 10 08:16:57.234512 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: ERROR neutron.api.v2.resource 
  Aug 10 08:16:57.245005 ubuntu-bionic-rax-iad-0019178926 neutron-server[12604]: INFO neutron.wsgi [None req-b440f68b-a3e2-4da5-8e2a-dfbb1331855b tempest-DNSIntegrationTests-1379368462 tempest-DNSIntegrationTests-1379368462] 10.209.97.155 "POST /v2.0/floatingips HTTP/1.1" status: 500  len: 363 time: 3.5691445

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References

[Bug 1891309] [NEW] Designate integration - internal server error in Neutron
From: Slawek Kaplonski, 2020-08-12