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Message #08143
Re: [Netstack] Can't associate floating IP
Hi,
I tested it with Quantum and I confirm the field 'host' in the 'network'
table stays empty.
Someone filled a bug for that ?
Doude.
On Tue, Feb 28, 2012 at 8:06 AM, Vishvananda Ishaya
<vishvananda@xxxxxxxxx>wrote:
> ...
> At least that is the case for nova-network without quantum. I don't know
> if using Quantum leads to a different result.
>
> Vish
>
> On Feb 27, 2012, at 9:49 PM, Yapeng Wu wrote:
>
> Hello, Brad,
>
> I read your reply to Darragph's email:
> "Another thing to check .. when I run devstack by default my network
> doesn't get associated with a host [host is NULL in the database].
> Make sure the host for that network is set to the hostname of the
> compute node."
>
> I found that when I use "nova-manage network create" CLI command, the host
> is NULL in the database as well.
> Is this a bug? Where would this "host" field get updated?
>
> Thanks,
> Yapeng
>
>
>
> On Feb 27, 2012, at 04:02 PM, Yapeng Wu <yapengwu@xxxxxx> wrote:
>
> Hello, Darragh,
>
> I...
>
>
>
> 2) For the second problem: command line issue, I found that it was due to
> the code in nova/network/manager.py, line 435 to 452:
>
> if network['multi_host']:
> instance = self.db.instance_get(context, fixed_ip['instance_id'])
> host = instance['host']
> else:
> host = network['host']
>
> interface = floating_ip['interface']
> if host == self.host:
> # i'm the correct host
> self._associate_floating_ip(context, floating_address,
> fixed_address, interface)
> else:
> # send to correct host
> rpc.cast(context,
> self.db.queue_get_for(context, FLAGS.network_topic, host),
> {'method': '_associate_floating_ip',
> 'args': {'floating_address': floating_address,
> 'fixed_address': fixed_address,
> 'interface': interface}})
>
>
> The "host" should be self.host in this case, but not. So it calls
> rpc.cast. I thought host is read from the database by the 'instance_id'? I
> am not sure. If I "hacked" the code by calling self._associate_floating_ip
> directly, associate floating ip works.
>
> Maybe someone familiar with nova-network code could help us on this.
>
> Yapeng
>
>
>
> On Feb 27, 2012, at 12:18 PM, Dan Wendlandt <dan@xxxxxxxxxx> wrote:
>
> Hi Darragh,
>
> Thanks for the detailed write-up. Would be great if you could take this
> content and create a bug on launchpad. We'll look into this.
>
> On a related note. The check in stack.sh to avoid creating a floating IP
> pool if quantum is enabled is no longer valid, now that Quantum Manager
> does (or at least intends to :P ) support floating IPs. But rather than
> remove it, it may be good to just change to the check to avoid creating
> floating IPs if melange is enabled, as Quantum Manager's current floating
> IP support requires using the traditional Nova IPAM, not Melange.
>
> Dan
>
>
> On Mon, Feb 27, 2012 at 6:38 AM, Darragh OReilly <
> darragh.oreilly@xxxxxxxxx> wrote:
>
>>
>>
>> When I try to associate a floating IP from the dash I get:
>> Error: Error associating Floating IP: Associate floating ip failed (HTTP
>> 500)
>>
>> >From the command line I don't get any errors or exceptions on any of the
>> screens after nova add-floating-ip, but the association does not happen.
>> Are these steps right?
>>
>> thanks Darragh
>>
>>
>> u1@u1110srv:~/devstack$ cat localrc
>> LOGFILE=stacklog
>> MYSQL_PASSWORD=nova
>> RABBIT_PASSWORD=nova
>> SERVICE_TOKEN=nova
>> ADMIN_PASSWORD=nova
>> SWIFT_HASH=nova
>>
>> ENABLED_SERVICES="g-api,g-reg,key,n-api,n-cpu,n-net,n-sch,n-vnc,horizon,mysql,rabbit,openstackx,n-vol,q-svc,q-agt,swift,quantum"
>> Q_PLUGIN=openvswitch
>>
>> After running stack.sh have:
>>
>> u1@u1110srv:~/devstack$ nova-manage network list
>> id IPv4 IPv6 start address
>> DNS1 DNS2 VlanID project
>> uuid
>> 2012-02-27 13:38:04 DEBUG nova.utils
>> [req-7b6febc7-c8cd-49e5-ac48-5707c70d8bb5 None None] backend <module
>> 'nova.db.sqlalchemy.api' from '/opt/stack/nova/nova/db/sqlalchemy/api.pyc'>
>> from (pid=4776) __get_backend /opt/stack/nova/nova/utils.py:603
>> 1 10.0.0.0/24 None 10.0.0.2
>> 8.8.4.4 None None None
>> 20cda3a7-f4a8-4b3c-b399-4dd624cb7a40
>>
>>
>> u1@u1110srv:~/devstack$ TENANT=
>> u1@u1110srv:~/devstack$ USERNAME=
>> u1@u1110srv:~/devstack$ . openrc
>> u1@u1110srv:~/devstack$
>>
>> u1@u1110srv:~/devstack$ nova boot --flavor 6 --image
>> 21b0573e-8dd6-4b42-9c01-4c8684b0b080 guest1
>>
>>
>> u1@u1110srv:~/devstack$ nova show guest1
>>
>> +-------------------+----------------------------------------------------------+
>> | Property |
>> Value |
>>
>> +-------------------+----------------------------------------------------------+
>> | OS-DCF:diskConfig |
>> MANUAL |
>> | accessIPv4
>> | |
>> | accessIPv6
>> | |
>> | config_drive
>> | |
>> | created |
>> 2012-02-27T13:49:00Z |
>> | flavor |
>> micro |
>> | hostId |
>> 372f92b8889526d07feaa81ec5ab9bb80228350db4cfa563c15baf6f |
>> | id |
>> 3d931521-9ea2-4344-ad52-13faf4172e96 |
>> | image |
>> cirros-0.3.0-x86_64-blank |
>> | key_name
>> | |
>> | metadata |
>> {} |
>> | name |
>> guest1 |
>> | private network |
>> 10.0.0.2 |
>> | progress |
>> None |
>> | status |
>> ACTIVE |
>> | tenant_id |
>> 5b5a2c42b5874058962c6f543ee91c72 |
>> | updated |
>> 2012-02-27T13:49:30Z |
>> | user_id |
>> demo |
>>
>> +-------------------+----------------------------------------------------------+
>>
>>
>> u1@u1110srv:~/devstack$ ssh cirros@10.0.0.2
>> The authenticity of host '10.0.0.2 (10.0.0.2)' can't be established.
>> RSA key fingerprint is ed:b0:be:78:26:23:2a:8d:81:22:84:84:f0:6c:ec:3c.
>> Are you sure you want to continue connecting (yes/no)? yes
>> Warning: Permanently added '10.0.0.2' (RSA) to the list of known hosts.
>> cirros@10.0.0.2's password:
>> $ ping www.openstack.org
>> PING www.openstack.org (98.129.229.144): 56 data bytes
>> 64 bytes from 98.129.229.144: seq=1 ttl=61 time=182.020 ms
>> 64 bytes from 98.129.229.144: seq=2 ttl=61 time=182.166 ms
>> ^C
>> --- www.openstack.org ping statistics ---
>> 3 packets transmitted, 2 packets received, 33% packet loss
>> round-trip min/avg/max = 182.020/182.093/182.166 ms
>> $ Connection to 10.0.0.2 closed.
>> u1@u1110srv:~/devstack$
>>
>>
>> stack.sh is not creating any floating range with quantum enabled:
>>
>> if is_service_enabled q-svc; then
>> echo "Not creating floating IPs (not supported by QuantumManager)"
>> else
>> # create some floating ips
>> $NOVA_DIR/bin/nova-manage floating create $FLOATING_RANGE
>>
>> # create a second pool
>> $NOVA_DIR/bin/nova-manage floating create
>> --ip_range=$TEST_FLOATING_RANGE --pool=$TEST_FLOATING_POOL
>> fi
>>
>>
>> u1@u1110srv:~/devstack$ nova-manage floating create --ip_range=
>> 172.241.1.0/24 --interface=eth2
>>
>> u1@u1110srv:~/devstack$ nova-manage floating list 2>/dev/null | head -3
>> None 172.241.1.1 None nova eth2
>> None 172.241.1.2 None nova eth2
>> None 172.241.1.3 None nova eth2
>>
>> u1@u1110srv:~/devstack$ nova floating-ip-create
>> +-------------+-------------+----------+------+
>> | Ip | Instance Id | Fixed Ip | Pool |
>> +-------------+-------------+----------+------+
>> | 172.241.1.1 | None | None | nova |
>> +-------------+-------------+----------+------+
>>
>> u1@u1110srv:~/devstack$ nova add-floating-ip guest1 172.241.1.1
>> u1@u1110srv:~/devstack$ echo $?
>> 0
>> u1@u1110srv:~/devstack$ nova floating-ip-list
>> +-------------+-------------+----------+------+
>> | Ip | Instance Id | Fixed Ip | Pool |
>> +-------------+-------------+----------+------+
>> | 172.241.1.1 | None | None | nova |
>> +-------------+-------------+----------+------+
>>
>> u1@u1110srv:~/devstack$ ip link show dev eth2
>> 2: eth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
>> link/ether 08:00:27:1a:5c:69 brd ff:ff:ff:ff:ff:ff
>>
>> u1@u1110srv:~/devstack$ sudo iptables -t nat -vnL | grep -i float
>> Chain nova-api-float-snat (1 references)
>> 81 4863 nova-api-float-snat all -- * * 0.0.0.0/0
>> 0.0.0.0/0
>> Chain nova-compute-float-snat (1 references)
>> 82 4947 nova-compute-float-snat all -- * * 0.0.0.0/0
>> 0.0.0.0/0
>> Chain nova-manage-float-snat (1 references)
>> 81 4863 nova-manage-float-snat all -- * * 0.0.0.0/0
>> 0.0.0.0/0
>> Chain nova-network-float-snat (1 references)
>> 82 4947 nova-network-float-snat all -- * * 0.0.0.0/0
>> 0.0.0.0/0
>>
>>
>> --
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>>
>>
>
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Dan Wendlandt
> Nicira Networks: www.nicira.com
> twitter: danwendlandt
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
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>
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