[Openstack] [devstack/quantum] Configuration issue

Gary Kotton gkotton at redhat.com
Tue May 15 07:11:08 UTC 2012


Hi,
Thanks. The Quantum DB is empty. The script for devstack ensures that it 
is clean prior to running.
Thanks
Gary

On 05/15/2012 09:46 AM, Edgar Magana (eperdomo) wrote:
> BTW. I also restart the network service to be sure that any previous
> configuration is completely removed.
>
> Edgar
>
> -----Original Message-----
> From: openstack-bounces+eperdomo=cisco.com at lists.launchpad.net
> [mailto:openstack-bounces+eperdomo=cisco.com at lists.launchpad.net] On
> Behalf Of Gary Kotton
> Sent: Monday, May 14, 2012 11:01 PM
> To: openstack at lists.launchpad.net
> Subject: [Openstack] [devstack/quantum] Configuration issue
>
> Hi,
> This morning I encountered a problem (which did not happen a few days
> ago :)). When devstack is launched, with quantum configured, the gateway
>
> and bridge devices are created. This causes problems with quantum.
>
> For example when devstack is up and running prior to deploying an
> instance we have:
>
> brq744ec2f4-c0 Link encap:Ethernet  HWaddr fa:16:3e:03:a6:55
>             inet addr:10.0.0.1  Bcast:0.0.0.0  Mask:255.255.255.0
>             UP BROADCAST MULTICAST  MTU:1500  Metric:1
>             RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>             TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>             collisions:0 txqueuelen:0
>             RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
>
> gw-744ec2f4-c0 Link encap:Ethernet  HWaddr fa:16:3e:03:a6:55
>             inet addr:10.0.0.1  Bcast:10.0.0.255  Mask:255.255.255.0
>             UP BROADCAST MULTICAST  MTU:1500  Metric:1
>             RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>             TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>             collisions:0 txqueuelen:500
>             RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
>
> When an instance is deployed the following happens:
>
> 2012-05-15 01:59:18 DEBUG nova.utils
> [req-4d50ed10-46e1-406c-9074-dc45da860365
> df07eec326434b25800f3ebc17202fb3 2cafe0be4d7740098a89be39ffd1b72e]
> Running cmd (subprocess): sudo /usr/local/bin/nova-rootwrap ip address
> add 10.0.0.1/24 dev brq744ec2f4-c0 from (pid=4234) execute
> /opt/stack/nova/nova/utils.py:178
> 2012-05-15 01:59:18 DEBUG nova.utils
> [req-4d50ed10-46e1-406c-9074-dc45da860365
> df07eec326434b25800f3ebc17202fb3 2cafe0be4d7740098a89be39ffd1b72e]
> Result was 254 from (pid=4234) execute /opt/stack/nova/nova/utils.py:194
> 2012-05-15 01:59:18 ERROR nova.rpc.amqp
> [req-4d50ed10-46e1-406c-9074-dc45da860365
> df07eec326434b25800f3ebc17202fb3 2cafe0be4d7740098a89be39ffd1b72e]
> Exception during message handling
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp Traceback (most recent call
> last):
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp   File
> "/opt/stack/nova/nova/rpc/amqp.py", line 263, in _process_data
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp     rval =
> node_func(context=ctxt, **node_args)
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp   File
> "/opt/stack/nova/nova/network/quantum/manager.py", line 390, in
> allocate_for_instance
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp     network, vif_rec,
> network['net_tenant_id'])
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp   File
> "/opt/stack/nova/nova/utils.py", line 880, in inner
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp     retval = f(*args, **kwargs)
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp   File
> "/opt/stack/nova/nova/network/quantum/manager.py", line 501, in
> enable_dhcp
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp
> self.l3driver.initialize_gateway(network_ref)
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp   File
> "/opt/stack/nova/nova/network/l3.py", line 98, in initialize_gateway
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp
> gateway=(network_ref['gateway'] is not None))
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp   File
> "/opt/stack/nova/nova/network/linux_net.py", line 900, in plug
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp     return
> _get_interface_driver().plug(network, mac_address, gateway)
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp   File
> "/opt/stack/nova/nova/network/linux_net.py", line 1160, in plug
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp     run_as_root=True)
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp   File
> "/opt/stack/nova/nova/utils.py", line 201, in execute
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp     cmd=' '.join(cmd))
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp ProcessExecutionError:
> Unexpected error while running command.
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp Command: sudo
> /usr/local/bin/nova-rootwrap ip address add 10.0.0.1/24 dev
> brq744ec2f4-c0
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp Exit code: 254
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp Stdout: ''
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp Stderr: 'RTNETLINK answers: File
>
> exists\n'
> 2012-05-15 01:59:18 TRACE nova.rpc.amqp
> 2012-05-15 01:59:18 ERROR nova.rpc.common
> [req-4d50ed10-46e1-406c-9074-dc45da860365
> df07eec326434b25800f3ebc17202fb3 2cafe0be4d7740098a89be39ffd1b72e]
> Returning exception Unexpected error while running command.
> Command: sudo /usr/local/bin/nova-rootwrap ip address add 10.0.0.1/24
> dev brq744ec2f4-c0
> Exit code: 254
> Stdout: ''
> Stderr: 'RTNETLINK answers: File exists\n' to caller
> 2012-05-15 01:59:18 ERROR nova.rpc.common
> [req-4d50ed10-46e1-406c-9074-dc45da860365
> df07eec326434b25800f3ebc17202fb3 2cafe0be4d7740098a89be39ffd1b72e]
> ['Traceback (most recent call last):\n', '  File
> "/opt/stack/nova/nova/rpc/amqp.py", line 263, in _process_data\n    rval
>
> = node_func(context=ctxt, **node_args)\n', '  File
> "/opt/stack/nova/nova/network/quantum/manager.py", line 390, in
> allocate_for_instance\n    network, vif_rec,
> network[\'net_tenant_id\'])\n', '  File "/opt/stack/nova/nova/utils.py",
>
> line 880, in inner\n    retval = f(*args, **kwargs)\n', '  File
> "/opt/stack/nova/nova/network/quantum/manager.py", line 501, in
> enable_dhcp\n    self.l3driver.initialize_gateway(network_ref)\n', '
> File "/opt/stack/nova/nova/network/l3.py", line 98, in
> initialize_gateway\n    gateway=(network_ref[\'gateway\'] is not
> None))\n', '  File "/opt/stack/nova/nova/network/linux_net.py", line
> 900, in plug\n    return _get_interface_driver().plug(network,
> mac_address, gateway)\n', '  File
> "/opt/stack/nova/nova/network/linux_net.py", line 1160, in plug\n
> run_as_root=True)\n', '  File "/opt/stack/nova/nova/utils.py", line 201,
>
> in execute\n    cmd=\' \'.join(cmd))\n', "ProcessExecutionError:
> Unexpected error while running command.\nCommand: sudo
> /usr/local/bin/nova-rootwrap ip address add 10.0.0.1/24 dev
> brq744ec2f4-c0\nExit code: 254\nStdout: ''\nStderr: 'RTNETLINK answers:
> File exists\\n'\n"]
>
>
> My guess is that this can be solved with the nova configuration. Sadly I
>
> am not too familiar with these. Any help would be great.
> Thanks
> Gary
>
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