Designate tooz error

**Bug Report**

What happened: I have recently deployed designate and in kibana can extensively find this WARNING:
Failed to start Coordinator:: tooz.ToozError: Can not start a driver which has not been stopped
2020-04-11 14:36:05.366 22 ERROR designate.coordination Traceback (most recent call last):
2020-04-11 14:36:05.366 22 ERROR designate.coordination File "/var/lib/kolla/venv/lib/python3.6/site-packages/designate/coordination.py", line 77, in start
2020-04-11 14:36:05.366 22 ERROR designate.coordination self._coordinator.start()
2020-04-11 14:36:05.366 22 ERROR designate.coordination File "/var/lib/kolla/venv/lib/python3.6/site-packages/tooz/coordination.py", line 690, in start

What you expected to happen: Have Designate working as designed.

How to reproduce it (minimal and precise): Use the normal train release and deploy with kolla-ansible. create a default pool and assign it to designate-sink.conf.

**Environment**:
(venv) root@compute-1:/home/kolla-ansible_setup# sh diag.sh
##### System Identification #####
PRETTY_NAME="Ubuntu 18.04.4 LTS"
VERSION_ID="18.04"
##### Docker Version #####
Docker version 19.03.8, build afacb8b7f0
##### Docker Info #####
Client:
 Debug Mode: false

Server:
 Containers: 104
  Running: 99
  Paused: 0
  Stopped: 5
 Images: 283
 Server Version: 19.03.8
 Storage Driver: overlay2
  Backing Filesystem: <unknown>
  Supports d_type: true
  Native Overlay Diff: true
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Plugins:
  Volume: local
  Network: bridge host ipvlan kuryr macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 7ad184331fa3e55e52b890ea95e65ba581ae3429
 runc version: dc9208a3303feef5b3839f4323d9beb36df0a9dd
 init version: fec3683
 Security Options:
  apparmor
  seccomp
   Profile: default
 Kernel Version: 4.15.0-91-generic
 Operating System: Ubuntu 18.04.4 LTS
 OSType: linux
 Architecture: x86_64
 CPUs: 16
 Total Memory: 125.7GiB
 Name: compute-1
 ID: QMPD:TNCC:PZXR:4LG7:PXSZ:QIMB:N5Y4:ZX7G:PWN7:JVKK:M6JV:T6CG
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Cluster Store: etcd://172.22.0.1:2379
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false

WARNING: API is accessible on http://172.22.0.1:2375 without encryption.
         Access to the remote API is equivalent to root access on the host. Refer
         to the 'Docker daemon attack surface' section in the documentation for
         more information: https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface
WARNING: No swap limit support
##### Ansible Version #####
ansible 2.9.6
  config file = /home/kolla-ansible_setup/ansible.cfg
  configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /root/venv/lib/python3.6/site-packages/ansible
  executable location = /root/venv/bin/ansible
  python version = 3.6.9 (default, Nov 7 2019, 10:44:02) [GCC 8.3.0]
##### List installed packages, including editables #####
Package Version
---------------------- ----------
alembic 1.4.2
ansible 2.9.6
appdirs 1.4.3
attrs 19.3.0
Babel 2.8.0
bcrypt 3.1.7
cachetools 4.1.0
certifi 2020.4.5.1
cffi 1.14.0
chardet 3.0.4
click 7.1.1
cliff 3.1.0
cliff-tablib 2.0
cmd2 0.8.9
colorama 0.4.3
cryptography 2.9
debtcollector 2.0.1
decorator 4.4.2
distlib 0.3.0
docker 4.2.0
dogpile.cache 0.9.0
entrypoints 0.3
extras 1.0.0
fasteners 0.15
filelock 3.0.12
fixtures 3.0.0
flake8 3.7.9
futurist 2.1.1
gitdb 4.0.2
gitdb2 4.0.2
GitPython 3.1.0
google-auth 1.13.1
idna 2.9
importlib-metadata 1.6.0
importlib-resources 1.4.0
iso8601 0.1.12
Jinja2 2.11.1
jmespath 0.9.5
jsonpatch 1.25
jsonpath-rw 1.4.0
jsonpath-rw-ext 1.2.2
jsonpickle 1.3
jsonpointer 2.0
jsonschema 3.2.0
keystoneauth1 4.0.0
kolla 9.0.1
kolla-ansible 9.0.1
kolla-cli 9.0.0
linecache2 1.0.0
Mako 1.1.2
MarkupSafe 1.1.1
mccabe 0.6.1
monotonic 1.5
msgpack 1.0.0
munch 2.5.0
murano-pkg-check 0.3.0
netaddr 0.7.19
netifaces 0.10.9
networkx 2.4
oauthlib 3.1.0
openstacksdk 0.46.0
os-client-config 2.1.0
os-service-types 1.7.0
osc-lib 2.0.0
oslo.concurrency 4.0.2
oslo.config 8.0.2
oslo.context 3.0.2
oslo.db 8.1.0
oslo.i18n 4.0.1
oslo.log 4.1.1
oslo.serialization 3.1.1
oslo.utils 4.1.1
osprofiler 3.1.0
packaging 20.3
pankoclient 1.0.1
paramiko 2.7.1
pbr 5.4.5
pip 20.0.2
pip-review 1.1.0
pkg-resources 0.0.0
ply 3.11
prettytable 0.7.2
pyasn1 0.4.8
pyasn1-modules 0.2.8
pycodestyle 2.5.0
pycparser 2.20
pyflakes 2.2.0
pyghmi 1.5.13
pyinotify 0.9.6
PyNaCl 1.3.0
pyOpenSSL 19.1.0
pyparsing 2.4.7
pyperclip 1.8.0
pyrsistent 0.16.0
python-barbicanclient 4.10.0
python-cinderclient 7.0.0
python-dateutil 2.8.1
python-designateclient 4.0.0
python-editor 1.0.4
python-glanceclient 3.1.0
python-heatclient 2.0.0
python-keystoneclient 3.22.0
python-magnumclient 3.0.0
python-mimeparse 1.6.0
python-mistralclient 4.0.1
python-neutronclient 7.1.1
python-novaclient 16.0.0
python-octaviaclient 2.0.1
python-openstackclient 5.2.0
python-subunit 1.4.0
python-swiftclient 3.9.0
python-troveclient 3.3.1
python-zunclient 4.0.0
pytz 2019.3
PyYAML 5.3.1
requests 2.23.0
requests-oauthlib 1.3.0
requestsexceptions 1.4.0
rfc3986 1.4.0
rsa 4.0
semantic-version 2.8.4
setuptools 46.1.3
simplejson 3.17.0
six 1.14.0
smmap 3.0.1
SQLAlchemy 1.3.16
sqlalchemy-migrate 0.13.0
sqlparse 0.3.1
stevedore 1.32.0
tablib 1.1.0
Tempita 0.5.2
testresources 2.0.1
testscenarios 0.5.0
testtools 2.4.0
traceback2 1.4.0
ujson 2.0.3
unittest2 1.1.0
urllib3 1.25.8
virtualenv 20.0.17
warlock 1.3.3
wcwidth 0.1.9
WebOb 1.8.6
websocket-client 0.57.0
wheel 0.34.2
wrapt 1.12.1
yaql 1.1.3
zipp 3.1.0
##### Globals.yml file #####
kolla_base_distro: "ubuntu"
kolla_install_type: "source"
openstack_release: "train"
enable_openstack_core: "yes"
enable_glance: "{{ enable_openstack_core | bool }}"
enable_haproxy: "yes"
enable_keepalived: "{{ enable_haproxy | bool }}"
enable_keystone: "{{ enable_openstack_core | bool }}"
enable_mariadb: "yes"
enable_memcached: "yes"
enable_neutron: "{{ enable_openstack_core | bool }}"
enable_nova: "{{ enable_openstack_core | bool }}"
enable_rabbitmq: "{{ 'yes' if om_rpc_transport == 'rabbit' or om_notify_transport == 'rabbit' else 'no' }}"
enable_barbican: "yes"
enable_ceilometer: "yes"
enable_central_logging: "yes"
enable_ceph: "no"
enable_chrony: "yes"
enable_cinder: "yes"
enable_cinder_backup: "yes"
enable_cloudkitty: "yes"
enable_designate: "yes"
enable_destroy_images: "yes"
enable_elasticsearch: "{{ 'yes' if enable_central_logging | bool or enable_osprofiler | bool or enable_skydive | bool or enable_monasca | bool else 'no' }}"
enable_elasticsearch_curator: "yes"
enable_etcd: "yes"
enable_fluentd: "yes"
enable_gnocchi: "yes"
enable_grafana: "yes"
enable_heat: "{{ enable_openstack_core | bool }}"
enable_horizon: "{{ enable_openstack_core | bool }}"
enable_horizon_cloudkitty: "{{ enable_cloudkitty | bool }}"
enable_horizon_designate: "{{ enable_designate | bool }}"
enable_horizon_heat: "{{ enable_heat | bool }}"
enable_horizon_ironic: "{{ enable_ironic | bool }}"
enable_horizon_magnum: "{{ enable_magnum | bool }}"
enable_horizon_mistral: "{{ enable_mistral | bool }}"
enable_horizon_neutron_vpnaas: "{{ enable_neutron_vpnaas | bool }}"
enable_horizon_octavia: "{{ enable_octavia | bool }}"
enable_horizon_trove: "{{ enable_trove | bool }}"
enable_horizon_zun: "{{ enable_zun | bool }}"
enable_influxdb: "{{ enable_monasca | bool or (enable_cloudkitty | bool and cloudkitty_storage_backend == 'influxdb') }}"
enable_ironic: "yes"
enable_ironic_neutron_agent: "{{ enable_neutron | bool and enable_ironic | bool }}"
enable_ironic_pxe_uefi: "yes"
enable_kibana: "{{ 'yes' if enable_central_logging | bool or enable_monasca | bool else 'no' }}"
enable_kuryr: "yes"
enable_magnum: "yes"
enable_manila_backend_cephfs_native: "yes"
enable_mariabackup: "yes"
enable_mistral: "yes"
enable_neutron_vpnaas: "yes"
enable_neutron_qos: "yes"
enable_neutron_provider_networks: "yes"
enable_neutron_segments: "yes"
enable_neutron_sfc: "yes"
enable_neutron_metering: "yes"
enable_neutron_port_forwarding: "yes"
enable_nova_serialconsole_proxy: "yes"
enable_nova_ssh: "yes"
enable_octavia: "yes"
enable_openvswitch: "{{ enable_neutron | bool and neutron_plugin_agent != 'linuxbridge' }}"
enable_osprofiler: "yes"
enable_panko: "yes"
enable_placement: "{{ enable_nova | bool or enable_zun | bool }}"
enable_skydive: "yes"
enable_trove: "yes"
enable_trove_singletenant: "yes"
enable_zun: "yes"
enable_ceph_rgw_keystone: "yes"