openstack team mailing list archive

[Jason Kölker <jkoelker@xxxxxxxxxxxxx>]

On Tue, 2012-02-28 at 11:52 +0100, Jérôme Gallard wrote:
> Hi all,
> 
> I use the trunk version of Nova, Quantum (with the OVS plugin) and Melange.
> I created networks, everything seems to be right.
> 
> I have two questions :
> - the first VM I boot takes always a wrong IP address (for instance
> 172.16.0.0). However, when I boot a second VM, this one takes a good
> IP (for instance 172.16.0.2). Do you know why this can happened ?

The default melange policy allows assignment of the network address and
synthesise a gateway address (if it is not specified). It will not hand
out the gateway address. The "fix" is to create an ip policy that
restricts the octect 0. I think the syntax is something like

`melange policy create -t {tennant} name={block_name}
desc={policy_name}` (This should return the policy_id for the next
command)

`melange unusable_ip_octet create -t {tennant} policy_id={policy_id}
octect=0`

`melange ip_block update -t {tennant} id={block_id}
policy_id={policy_id}`


> - I have an error regarding an fixed IP not found. Effectively, when I
> check the nova database, the fixed_ip table is empty but as I am using
> quantum and melange and their tables seems to be nicely filled. Do you
> have an idea about this issue ?
> This is a copy/paste of the error:
> 2012-02-28 10:45:53 DEBUG nova.rpc.common [-] received
> {u'_context_roles': [u'admin'], u'_context_request_id':
> u'req-461788a6-3570-4fa9-8620-6705eb69243c', u│··
> '_context_read_deleted': u'no', u'args': {u'address': u'172.16.0.2'},
> u'_context_auth_token': None, u'_context_strategy': u'noauth',
> u'_context_is_admin': Tr│··
> ue, u'_context_project_id': None, u'_context_timestamp':
> u'2012-02-28T09:45:53.484445', u'_context_user_id': None, u'method':
> u'lease_fixed_ip', u'_context_r│··
> emote_address': None} from (pid=8844) _safe_log
> /usr/local/src/nova/nova/rpc/common.py:144 │··
> 2012-02-28 10:45:53 DEBUG nova.rpc.common
> [req-461788a6-3570-4fa9-8620-6705eb69243c None None] unpacked context:
> {'request_id': u'req-461788a6-3570-4fa9-8620│··
> -6705eb69243c', 'user_id': None, 'roles': [u'admin'], 'timestamp':
> '2012-02-28T09:45:53.484445', 'is_admin': True, 'auth_token': None,
> 'project_id': None, 'r│··
> emote_address': None, 'read_deleted': u'no', 'strategy': u'noauth'}
> from (pid=8844) unpack_context
> /usr/local/src/nova/nova/rpc/amqp.py:187 │··
> 2012-02-28 10:45:53 DEBUG nova.network.manager
> [req-461788a6-3570-4fa9-8620-6705eb69243c None None] Leased IP
> |172.16.0.2| from (pid=8844) lease_fixed_ip
> /us│··r/local/src/nova/nova/network/manager.py:1186 │··
> 2012-02-28 10:45:53 ERROR nova.rpc.common [-] Exception during message
> handling │··(nova.rpc.common): TRACE: Traceback (most recent call
> last): │··
> (nova.rpc.common): TRACE: File "/usr/local/src/nova/nova/rpc/amqp.py",
> line 250, in _process_data │··(nova.rpc.common): TRACE: rval =
> node_func(context=ctxt, **node_args) │··(nova.rpc.common): TRACE: File
> "/usr/local/src/nova/nova/network/manager.py", line 1187, in
> lease_fixed_ip │··(nova.rpc.common): TRACE: fixed_ip =
> self.db.fixed_ip_get_by_address(context, address) │··
> (nova.rpc.common): TRACE: File "/usr/local/src/nova/nova/db/api.py",
> line 473, in fixed_ip_get_by_address │··(nova.rpc.common): TRACE:
> return IMPL.fixed_ip_get_by_address(context, address)
> │··(nova.rpc.common): TRACE: File
> "/usr/local/src/nova/nova/db/sqlalchemy/api.py", line 119, in wrapper
> │··
> (nova.rpc.common): TRACE: return f(*args, **kwargs)
> │··(nova.rpc.common): TRACE: File
> "/usr/local/src/nova/nova/db/sqlalchemy/api.py", line 1131, in
> fixed_ip_get_by_address │··
> (nova.rpc.common): TRACE: raise
> exception.FixedIpNotFoundForAddress(address=address) │··
> (nova.rpc.common): TRACE: FixedIpNotFoundForAddress: Fixed ip not
> found for address 172.16.0.2. │··
> (nova.rpc.common): TRACE:

You need to create your networks through nova-manage, otherwise the nova
tables don't get filled in. The next release we are axing the nova
tables as it was just a crutch to get it "usable".

Happy Hacking!

7-11