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[Roberto Sassu <roberto.sassu@xxxxxxxxx>]

Hi everyone

I have a controller node with Ubuntu 12.04 LTS and a compute node with
Fedora 16. I installed in both nodes the same version of Nova
(2012.1.3), but I'm unable to deploy a VM on the compute node.
The error message is:

----
2012-09-28 15:23:16 ERROR nova.rpc.amqp 
[req-44675879-a976-4920-b5a7-b03d93eefc70 
9343fcd95205427ca6632c69976e9b9a 9971204f5b554be181e9eaa878f7682a] 
Exception during message handling
2012-09-28 15:23:16 TRACE nova.rpc.amqp Traceback (most recent call last):
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib/python2.7/site-packages/nova/rpc/amqp.py", line 253, in 
_process_data
2012-09-28 15:23:16 TRACE nova.rpc.amqp     rval = 
node_func(context=ctxt, **node_args)
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib/python2.7/site-packages/nova/exception.py", line 114, in wrapped
2012-09-28 15:23:16 TRACE nova.rpc.amqp     return f(*args, **kw)
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 185, in 
decorated_function
2012-09-28 15:23:16 TRACE nova.rpc.amqp     sys.exc_info())
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib64/python2.7/contextlib.py", line 24, in __exit__
2012-09-28 15:23:16 TRACE nova.rpc.amqp     self.gen.next()
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 179, in 
decorated_function
2012-09-28 15:23:16 TRACE nova.rpc.amqp     return function(self, 
context, instance_uuid, *args, **kwargs)
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 678, in 
run_instance
2012-09-28 15:23:16 TRACE nova.rpc.amqp     do_run_instance()
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib/python2.7/site-packages/nova/utils.py", line 946, in inner
2012-09-28 15:23:16 TRACE nova.rpc.amqp     retval = f(*args, **kwargs)
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 677, in 
do_run_instance
2012-09-28 15:23:16 TRACE nova.rpc.amqp     self._run_instance(context, 
instance_uuid, **kwargs)
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 478, in 
_run_instance
2012-09-28 15:23:16 TRACE nova.rpc.amqp 
self._set_instance_error_state(context, instance_uuid)
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib64/python2.7/contextlib.py", line 24, in __exit__
2012-09-28 15:23:16 TRACE nova.rpc.amqp     self.gen.next()
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 447, in 
_run_instance
2012-09-28 15:23:16 TRACE nova.rpc.amqp     image_meta = 
self._check_image_size(context, instance)
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 525, in 
_check_image_size
2012-09-28 15:23:16 TRACE nova.rpc.amqp     image_meta = 
_get_image_meta(context, instance['image_ref'])
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 192, in 
_get_image_meta
2012-09-28 15:23:16 TRACE nova.rpc.amqp     return 
image_service.show(context, image_id)
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib/python2.7/site-packages/nova/image/glance.py", line 241, in show
2012-09-28 15:23:16 TRACE nova.rpc.amqp 
_reraise_translated_image_exception(image_id)
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib/python2.7/site-packages/nova/image/glance.py", line 476, in 
_reraise_translated_image_exception
2012-09-28 15:23:16 TRACE nova.rpc.amqp     new_exc = 
_translate_image_exception(image_id, exc_type, exc_value)
2012-09-28 15:23:16 TRACE nova.rpc.amqp   File 
"/usr/lib/python2.7/site-packages/nova/image/glance.py", line 488, in 
_translate_image_exception
2012-09-28 15:23:16 TRACE nova.rpc.amqp     if exc_type in 
(glance_exception.Forbidden,
2012-09-28 15:23:16 TRACE nova.rpc.amqp AttributeError: 'module' object 
has no attribute 'Forbidden'
----


and the nova.conf file of the compute node is:


[DEFAULT]
dhcpbridge_flagfile=/etc/nova/nova.conf
dhcpbridge=/usr/bin/nova-dhcpbridge
logdir=/var/log/nova
state_path=/var/lib/nova
lock_path=/var/lock/nova
force_dhcp_release=true
iscsi_helper=tgtadm
libvirt_use_virtio_for_bridges=true
connection_type=libvirt
root_helper=sudo nova-rootwrap
verbose=true
ec2_private_dns_show_ip=true
auth_strategy=keystone
network_manager=nova.network.manager.FlatDHCPManager
fixed_range=192.168.100.0/24
public_interface=em1
flat_interface=p1p1
flat_network_bridge=br100
my_ip=compute-node
vncserver_listen=compute-node
vncserver_proxyclient_address=compute-node
libvirt_type=kvm
auth_strategy = keystone
image_service=nova.image.glance.GlanceImageService
sql_connection=mysql://[...]@controller-node/nova
glance_api_servers=controller-node:9292
iscsi_ip_prefix=controller-node
rabbit_host=controller-node
vpn_client_template = /usr/share/nova/client.ovpn.template
credentials_template = /usr/share/nova/novarc.template
firewall_driver = nova.virt.libvirt.firewall.IptablesFirewallDriver
injected_network_template = /usr/share/nova/interfaces.template
libvirt_xml_template = /usr/share/nova/libvirt.xml.template


For the controller node, I only removed the last five lines and
set the correct IP in my_ip, vncserver_listen and
vncserver_proxyclient_address.

If I deploy the VM in the controller or in another compute node
with Ubuntu, the operation succeeds.

Do you have an idea why the deploy fails in the node with Fedora?

Thanks

Roberto Sassu