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RuntimeError: OVS transaction timed out - After minor upgrade


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.

https://docs.openstack.org/openstack-ansible/newton/upgrade-guide/minor-upgrade.html

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



-- 

With kind regards,
Yedhu Sastri
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