[Rdo-list] Openstack Juno Live Migration --block-migrate failed "ValueError: A NetworkModel is required here"

Ignacio Bravo ibravo at ltgfederal.com
Thu Jan 14 14:02:57 UTC 2016 

Two things that I would test:
Check etc hosts file to see that you have one entry for controller with the node ip
You can also ping controller to see if it resolves correctly
Restart nova service to ensure it is reading the latest configuration file

-
Ignacio Bravo
LTG federal


> On Jan 14, 2016, at 8:20 AM, Gabriele Guaglianone <gabriele.guaglianone at gmail.com> wrote:
> 
> Hi all,
> I'm trying to poupulate the compute dbs on controller node, but I'm getting this error, I can't figure out why 'cause I'm able to login :
> 
> [root at controller nova]# su -s /bin/sh -c "nova-manage db sync" nova
> Command failed, please check log for more info
> [root at controller nova]# more /var/log/nova/nova-manage.log
> 2016-01-14 13:11:15.269 4286 CRITICAL nova [-] OperationalError: (_mysql_exceptions.OperationalError) (1045, "Access denied for user 'nova'@'localhost' (using password: YES)")
> 2016-01-14 13:11:15.269 4286 ERROR nova Traceback (most recent call last):
> 2016-01-14 13:11:15.269 4286 ERROR nova   File "/usr/bin/nova-manage", line 10, in <module>
> 2016-01-14 13:11:15.269 4286 ERROR nova     sys.exit(main())
> 
> but :
> 
> [root at controller nova]# mysql -u nova -p 
> Enter password: r00tme
> Welcome to the MariaDB monitor.  Commands end with ; or \g.
> Your MariaDB connection id is 12
> Server version: 5.5.44-MariaDB MariaDB Server
> 
> Copyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.
> 
> Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
> 
> MariaDB [(none)]> 
> 
> 
> connection string in nova.conf file is 
> 
> connection=mysql://nova:r00tme@controller/nova
> 
> Any suggestions ?
> 
> Cheers
> 
> Gabriele
> 
> 
> 
> 2016-01-14 11:20 GMT+00:00 Soputhi Sea <puthi at live.com>:
>> 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”
>> 
>> 
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