Dear All,

We did a minor upgrade on our OpenStack environment Newton HA cluster from 14.2.12 to 14.2.16 using the following link.

The upgrade was successful and we tested creation of VM's and it was also successful we were able to ssh into the VM's.

Then we rebooted the controllers one by one. But after that we can create the VM's but it is not getting IP from dhcp agent.

In the openvswitch-agent.log we are getting 'OVS transaction timeout'. Any help is much appreciated.

2019-04-09 17:25:29.063 3504 INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] port_unbound(): net_uuid None not managed by VLAN manager
2019-04-09 17:25:29.088 3504 INFO neutron.agent.common.ovs_lib [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] Port 04275c8a-2d12-477b-b435-f6483d418e93 not present in bridge br-int
2019-04-09 17:25:29.089 3504 INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] port_unbound(): net_uuid None not managed by VLAN manager
2019-04-09 17:25:29.198 3504 INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] port_unbound(): net_uuid None not managed by VLAN manager
2019-04-09 17:25:29.228 3504 INFO neutron.agent.common.ovs_lib [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] Port 5c25b580-9dcb-4930-a2fe-9cab951114dd not present in bridge br-int
2019-04-09 17:25:29.228 3504 INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] port_unbound(): net_uuid None not managed by VLAN manager
2019-04-09 17:25:29.229 3504 INFO neutron.agent.securitygroups_rpc [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] Remove device filter for [u'63cb0c6a-6e82-41a8-ad46-511ee84579ad', u'9764e98a-bb32-4d37-9460-5a546f351e5a', u'2c075f29-156c-4787-b40f-434c437164e4', u'f00de46f-301a-4789-add1-a8239ee6c859', u'e26c1806-8041-4ce2-aea0-74ca469add67', u'9fa17447-d25d-441b-9983-b81e43c6e6d2', u'3ef24ce6-19b5-47c8-9510-767e64d33e9f', u'c2d37add-65a0-4fc9-914c-2382af70b1ca', u'a8b7c7aa-a5d0-47b3-a944-7b6c4428eda8', u'bf6f7608-0573-43f7-822a-878d7708d985', u'046670cd-77dd-4ce8-bb4b-f1489264375b', u'b7aefa18-d768-47a8-bb5f-6b1e838deaeb', u'04275c8a-2d12-477b-b435-f6483d418e93', u'124eb5e6-2b8a-44a9-aa8b-f6d9bc87f13f', u'5c25b580-9dcb-4930-a2fe-9cab951114dd']
2019-04-09 17:27:09.740 3504 INFO neutron.agent.securitygroups_rpc [req-5984df4b-c30f-403c-8e87-86c4ccf50a9f - - - - -] Provider rule updated
2019-04-09 17:27:41.961 3504 INFO neutron.agent.securitygroups_rpc [req-67c36a44-f778-48f0-b7ae-0a5244ff95c1 - - - - -] Provider rule updated
2019-04-09 17:28:28.334 3504 INFO neutron.agent.securitygroups_rpc [req-aeffc24f-a354-412e-b458-950c1d4b52ef - - - - -] Provider rule updated
2019-04-09 17:28:46.276 3504 INFO neutron.agent.securitygroups_rpc [req-2dd51325-40c4-4ff0-a384-bccbe3ca0bfc - - - - -] Provider rule updated
2019-04-09 17:28:46.278 3504 INFO neutron.agent.securitygroups_rpc [req-6d48bfd9-0230-4a82-a477-d9e4171db519 - - - - -] Provider rule updated
2019-04-09 17:30:32.695 3504 INFO neutron.agent.securitygroups_rpc [req-01b9b7a8-84a4-42cc-aebb-db846eb2b8f0 - - - - -] Provider rule updated
2019-04-09 17:30:54.288 3504 INFO neutron.agent.securitygroups_rpc [req-de1755bd-0e21-4b75-9fde-db422ee9a79a - - - - -] Provider rule updated
2019-04-09 17:32:12.377 3504 INFO neutron.agent.securitygroups_rpc [req-26bc4547-edb7-4092-b4f4-6465c29dfbe4 - - - - -] Provider rule updated
2019-04-09 17:32:21.444 3504 WARNING neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] Device 0d535260-dd98-4027-a2ba-4c5412d4eab0 not defined on plugin or binding failed
2019-04-09 17:32:21.461 3504 INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] Port d3baa557-a367-4a6d-8d58-7183df4243a6 updated. Details: {u'profile': {}, u'network_qos_policy_id': None, u'qos_policy_id': None, u'allowed_address_pairs': [], u'admin_state_up': True, u'network_id': u'680c9bdd-9cea-4059-8c8c-2928dd0ee48f', u'segmentation_id': 65606, u'device_owner': u'network:router_ha_interface', u'physical_network': None, u'mac_address': u'fa:16:3e:b3:9a:60', u'device': u'd3baa557-a367-4a6d-8d58-7183df4243a6', u'port_security_enabled': False, u'port_id': u'd3baa557-a367-4a6d-8d58-7183df4243a6', u'fixed_ips': [{u'subnet_id': u'5b49f8e5-991d-4ecd-a584-df605063aecb', u'ip_address': u'169.254.192.9'}], u'network_type': u'vxlan'}
2019-04-09 17:32:21.461 3504 INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] Assigning 1 as local vlan for net-id=680c9bdd-9cea-4059-8c8c-2928dd0ee48f
2019-04-09 17:32:35.477 3504 INFO oslo_messaging._drivers.amqpdriver [-] No calling threads waiting for msg_id : a9314d944ff8486abf909d4cc271f9a0
2019-04-09 17:32:39.016 3504 INFO neutron.agent.securitygroups_rpc [req-51453b2c-b454-45bd-b7f8-c78560437016 - - - - -] Provider rule updated
2019-04-09 17:32:54.141 3504 ERROR neutron.plugins.ml2.drivers.openvswitch.agent.openflow.native.ofswitch [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] Switch connection timeout
2019-04-09 17:32:57.964 3504 INFO neutron.plugins.ml2.drivers.openvswitch.agent.openflow.native.ovs_bridge [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] Bridge br-tun changed its datapath-ID from 6a740a5da349 to 00006a740a5da349
2019-04-09 17:32:58.015 3504 INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] Port 0d8dc3c9-c115-45f8-bbb2-cc715b7c1079 updated. Details: {u'profile': {}, u'network_qos_policy_id': None, u'qos_policy_id': None, u'allowed_address_pairs': [], u'admin_state_up': True, u'network_id': u'4ffb2c28-f9f1-4a25-82a0-df7f7a002434', u'segmentation_id': 625, u'device_owner': u'network:router_gateway', u'physical_network': u'outbound1', u'mac_address': u'fa:16:3e:aa:d7:56', u'device': u'0d8dc3c9-c115-45f8-bbb2-cc715b7c1079', u'port_security_enabled': False, u'port_id': u'0d8dc3c9-c115-45f8-bbb2-cc715b7c1079', u'fixed_ips': [{u'subnet_id': u'764f08fc-1979-402c-b93c-834d7148a8a5', u'ip_address': u'10.97.179.34'}], u'network_type': u'vlan'}
2019-04-09 17:32:58.016 3504 INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] Assigning 2 as local vlan for net-id=4ffb2c28-f9f1-4a25-82a0-df7f7a002434
2019-04-09 17:32:58.030 3504 INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] Port 1239fa6c-265a-4f16-ab00-c86fe40545d9 updated. Details: {u'profile': {}, u'network_qos_policy_id': None, u'qos_policy_id': None, u'allowed_address_pairs': [], u'admin_state_up': True, u'network_id': u'4ffb2c28-f9f1-4a25-82a0-df7f7a002434', u'segmentation_id': 625, u'device_owner': u'network:router_gateway', u'physical_network': u'outbound1', u'mac_address': u'fa:16:3e:4d:73:46', u'device': u'1239fa6c-265a-4f16-ab00-c86fe40545d9', u'port_security_enabled': False, u'port_id': u'1239fa6c-265a-4f16-ab00-c86fe40545d9', u'fixed_ips': [{u'subnet_id': u'764f08fc-1979-402c-b93c-834d7148a8a5', u'ip_address': u'10.97.179.99'}], u'network_type': u'vlan'}
2019-04-09 17:33:13.289 3504 ERROR neutron.agent.ovsdb.impl_idl [req-04b10d7a-3f2c-4eda-8d86-c36f994323d9 - - - - -] Traceback (most recent call last):
  File "/openstack/venvs/neutron-14.2.16/lib/python2.7/site-packages/neutron/agent/ovsdb/native/connection.py", line 117, in run
    txn.results.put(txn.do_commit())
  File "/openstack/venvs/neutron-14.2.16/lib/python2.7/site-packages/neutron/agent/ovsdb/impl_idl.py", line 91, in do_commit
    raise RuntimeError(_("OVS transaction timed out"))
RuntimeError: OVS transaction timed out

--