Hi,

I wonder if anybody come across that same situation as me at all.
Puthi

From: puthi@live.com
To: rdo-list@redhat.com
Subject: Openstack Juno Live Migration --block-migrate failed "ValueError: A NetworkModel is required here"
Date: Thu, 14 Jan 2016 18:20:50 +0700

Hi,

Openstack Juno's Live Migration, I've been trying to get live-migration to work on this version but i keep getting the same error as below.
I wonder if anybody can point me to the right direction to where to debug the problem. Or if anybody come across this problem before please share some ideas.
I google around for a few days already but so far I haven't got any luck.

Note: the same nova, neutron and libvirt configuration work on Icehouse and Liberty on a different cluster, as i tested.

Thanks
Puthi

Nova Version tested: 2014.2.3 and 2014.2.4
Nova Error Log
============
2016-01-14 17:34:08.818 6173 ERROR oslo.messaging.rpc.dispatcher [req-54581412-a194-40d5-9208-b1bf6d04f8d8 ] Exception during message handling: A NetworkModel is required here
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher Traceback (most recent call last):
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line 134, in _dispatch_and_reply
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     incoming.message))
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line 177, in _dispatch
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     return self._do_dispatch(endpoint, method, ctxt, args)
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line 123, in _do_dispatch
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     result = getattr(endpoint, method)(ctxt, **new_args)
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/exception.py", line 88, in wrapped
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     payload)
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 82, in __exit__
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/exception.py", line 71, in wrapped
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     return f(self, context, *args, **kw)
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 335, in decorated_function
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     kwargs['instance'], e, sys.exc_info())
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 82, in __exit__
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 323, in decorated_function
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     return function(self, context, *args, **kwargs)
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4978, in live_migration
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     expected_attrs=expected)
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/objects/instance.py", line 300, in _from_db_object
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     db_inst['info_cache'])
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/objects/instance_info_cache.py", line 45, in _from_db_object
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     info_cache[field] = db_obj[field]
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/objects/base.py", line 474, in __setitem__
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     setattr(self, name, value)
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/objects/base.py", line 75, in setter
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     field_value = field.coerce(self, name, value)
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/objects/fields.py", line 189, in coerce
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     return self._type.coerce(obj, attr, value)
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/objects/fields.py", line 516, in coerce
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher     raise ValueError(_('A NetworkModel is required here'))
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher ValueError: A NetworkModel is required here
2016-01-14 17:34:08.818 6173 TRACE oslo.messaging.rpc.dispatcher


Nova Config
===========================
[DEFAULT]
rpc_backend = qpid
qpid_hostname = management-host
auth_strategy = keystone
my_ip = 10.201.171.244
vnc_enabled = True
novncproxy_host=0.0.0.0
novncproxy_port=6080
novncproxy_base_url=http://management-host:6080/vnc_auto.html
network_api_class = nova.network.neutronv2.api.API
linuxnet_interface_driver = nova.network.linux_net.LinuxOVSInterfaceDriver
firewall_driver = nova.virt.firewall.NoopFirewallDriver
vncserver_listen=0.0.0.0
vncserver_proxyclient_address=10.201.171.244
[baremetal]
[cells]
[cinder]
[conductor]
[database]
connection = mysql://nova:novadbpassword@db-host/nova
[ephemeral_storage_encryption]
[glance]
host = glance-host
port = 9292
api_servers=$host:$port
[hyperv]
[image_file_url]
[ironic]
[keymgr]
[keystone_authtoken]
auth_uri = http://management-host:5000/v2.0
identity_uri = http://management-host:35357
admin_user = nova
admin_tenant_name = service
admin_password = nova2014agprod2
[libvirt]
live_migration_flag=VIR_MIGRATE_UNDEFINE_SOURCE, VIR_MIGRATE_PEER2PEER, VIR_MIGRATE_LIVE #, VIR_MIGRATE_TUNNELLED
block_migration_flag=VIR_MIGRATE_UNDEFINE_SOURCE, VIR_MIGRATE_PEER2PEER, VIR_MIGRATE_NON_SHARED_INC, VIR_MIGRATE_LIVE
[matchmaker_redis]
[matchmaker_ring]
[metrics]
[neutron]
url = http://management-host:9696
admin_username = neutron
admin_password = neutronpassword
admin_tenant_name = service
admin_auth_url = http://management-host:35357/v2.0
auth_strategy = keystone
[osapi_v3]
[rdp]
[serial_console]
[spice]
[ssl]
[trusted_computing]
[upgrade_levels]
compute=icehouse
conductor=icehouse
[vmware]
[xenserver]
[zookeeper]




Neutron Config
============
[DEFAULT]
auth_strategy = keystone
rpc_backend = neutron.openstack.common.rpc.impl_qpid
qpid_hostname = management-host
core_plugin = ml2
service_plugins = router
dhcp_lease_duration = 604800
dhcp_agents_per_network = 3
[matchmaker_redis]
[matchmaker_ring]
[quotas]
[agent]
[keystone_authtoken]
auth_uri = http://management-host:5000
identity_uri = http://management-host:35357
admin_tenant_name = service
admin_user = neutron
admin_password = neutronpassword
auth_host = management-host
auth_protocol = http
auth_port = 35357
[database]
[service_providers]
service_provider=LOADBALANCER:Haproxy:neutron.services.loadbalancer.drivers.haproxy.plugin_driver.HaproxyOnHostPluginDriver:default
service_provider=VPN:openswan:neutron.services.vpn.service_drivers.ipsec.IPsecVPNDriver:default


Neutron Plugin
============
[ml2]
type_drivers = local,flat
mechanism_drivers = openvswitch
[ml2_type_flat]
flat_networks = physnet3
[ml2_type_vlan]
[ml2_type_gre]
tunnel_id_ranges = 1:1000
[ml2_type_vxlan]
[securitygroup]
firewall_driver = neutron.agent.firewall.NoopFirewallDriver
enable_security_group = False
[ovs]
enable_tunneling = False
local_ip = 10.201.171.244
network_vlan_ranges = physnet3
bridge_mappings = physnet3:br-bond0


Libvirt Config
===========

/etc/sysconfig/libvirtd

Uncomment

LIBVIRTD_ARGS="--listen"


/etc/libvirt/libvirtd.conf

 listen_tls = 0

listen_tcp = 1

auth_tcp = “none”