[Rdo-list] instance can't connect to neutron

Thu Aug 21 11:22:57 UTC 2014

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

The issue is irrelevant, the error message is generic when Nova fails
to connect to Neutron. Have you checked that your Controller is able
to reach Network node?

On 20/08/14 18:04, Xin Zhao wrote:
> Revisiting this issue, I see there is a bug report 
> https://bugs.launchpad.net/nova/+bug/1251784, which is supposed to
> be fixed. Is the fix not in the RDO rpms, or do I misconfigure
> anything? Any suggestions where to debug it?
> 
> Thanks, Xin
> 
> On 8/11/2014 2:21 PM, Zhao, Xin wrote:
>> Hello,
>> 
>> I am setting up a 3-node icehouse testbed on RHEL6.5, using RDO,
>> the testbed has one controller node, one network node and one
>> compute node. I use ML2 plugin, with OVS mechanism and VLAN
>> type.
>> 
>> When I start an instance, it fails. On the compute node nova.log
>> file, there is the following error messages:
>> 
>> 
>> 2014-08-11 17:05:44.234 25860 WARNING nova.compute.manager [-] 
>> [instance: fdaba1ab-728b-4352-89b1-57f302496a07] Instance failed 
>> network setup (attempt 1 of 3) 2014-08-11 17:05:45.240 25860
>> WARNING nova.compute.manager [-] [instance:
>> fdaba1ab-728b-4352-89b1-57f302496a07] Instance failed network
>> setup (attempt 2 of 3) 2014-08-11 17:05:47.254 25860 ERROR
>> nova.compute.manager [-] Instance failed network setup after 3
>> attempt(s) 2014-08-11 17:05:47.254 25860 TRACE
>> nova.compute.manager Traceback (most recent call last): 
>> 2014-08-11 17:05:47.254 25860 TRACE nova.compute.manager   File 
>> "/usr/lib/python2.6/site-packages/nova/compute/manager.py", line
>> 1504, in _allocate_network_async 2014-08-11 17:05:47.254 25860
>> TRACE nova.compute.manager dhcp_options=dhcp_options) 2014-08-11
>> 17:05:47.254 25860 TRACE nova.compute.manager   File 
>> "/usr/lib/python2.6/site-packages/nova/network/neutronv2/api.py",
>> line 259, in allocate_for_instance 2014-08-11 17:05:47.254 25860
>> TRACE nova.compute.manager net_ids) 2014-08-11 17:05:47.254 25860
>> TRACE nova.compute.manager   File 
>> "/usr/lib/python2.6/site-packages/nova/network/neutronv2/api.py",
>> line 128, in _get_available_networks 2014-08-11 17:05:47.254
>> 25860 TRACE nova.compute.manager     nets = 
>> neutron.list_networks(**search_opts).get('networks', []) 
>> 2014-08-11 17:05:47.254 25860 TRACE nova.compute.manager   File 
>> "/usr/lib/python2.6/site-packages/neutronclient/v2_0/client.py",
>> line 111, in with_params 2014-08-11 17:05:47.254 25860 TRACE
>> nova.compute.manager     ret = self.function(instance, *args,
>> **kwargs) 2014-08-11 17:05:47.254 25860 TRACE
>> nova.compute.manager   File 
>> "/usr/lib/python2.6/site-packages/neutronclient/v2_0/client.py",
>> line 333, in list_networks 2014-08-11 17:05:47.254 25860 TRACE
>> nova.compute.manager **_params) 2014-08-11 17:05:47.254 25860
>> TRACE nova.compute.manager   File 
>> "/usr/lib/python2.6/site-packages/neutronclient/v2_0/client.py",
>> line 1250, in list 2014-08-11 17:05:47.254 25860 TRACE
>> nova.compute.manager     for r in self._pagination(collection,
>> path, **params): 2014-08-11 17:05:47.254 25860 TRACE
>> nova.compute.manager   File 
>> "/usr/lib/python2.6/site-packages/neutronclient/v2_0/client.py",
>> line 1263, in _pagination 2014-08-11 17:05:47.254 25860 TRACE
>> nova.compute.manager     res = self.get(path, params=params) 
>> 2014-08-11 17:05:47.254 25860 TRACE nova.compute.manager   File 
>> "/usr/lib/python2.6/site-packages/neutronclient/v2_0/client.py",
>> line 1236, in get 2014-08-11 17:05:47.254 25860 TRACE
>> nova.compute.manager headers=headers, params=params) 2014-08-11
>> 17:05:47.254 25860 TRACE nova.compute.manager   File 
>> "/usr/lib/python2.6/site-packages/neutronclient/v2_0/client.py",
>> line 1228, in retry_request 2014-08-11 17:05:47.254 25860 TRACE
>> nova.compute.manager     raise 
>> exceptions.ConnectionFailed(reason=_("Maximum attempts
>> reached")) 2014-08-11 17:05:47.254 25860 TRACE
>> nova.compute.manager ConnectionFailed: Connection to neutron
>> failed: Maximum attempts reached 2014-08-11 17:05:47.254 25860
>> TRACE nova.compute.manager 2014-08-11 17:05:49.069 25860 WARNING
>> nova.virt.disk.vfs.guestfs 
>> [req-a534fed9-ebea-4a61-8064-ff3d3db2e6ea 
>> f6bd9769708b4fbe971a616143c6959f
>> eea3753cf3ce471ba60c434e7382750c] Failed to close augeas
>> aug_close: do_aug_close: you must call 'aug-init' first to
>> initialize Augeas 2014-08-11 17:05:49.222 25860 ERROR
>> nova.compute.manager [req-a534fed9-ebea-4a61-8064-ff3d3db2e6ea 
>> f6bd9769708b4fbe971a616143c6959f
>> eea3753cf3ce471ba60c434e7382750c] [instance:
>> fdaba1ab-728b-4352-89b1-57f302496a07] Instance failed to spawn
>> 
>> On the controller node and network node, I don't see much errors
>> from the neutron services log files. I can connect to the
>> (standalone) DB from the network node, using the
>> username/password inside the neutron.conf file.
>> 
>> Here are the relevant rpms on the compute node:
>> 
>> openstack-utils-2014.1-3.el6.noarch 
>> openstack-neutron-openvswitch-2014.1.1-8.el6.noarch 
>> openstack-neutron-ml2-2014.1.1-8.el6.noarch 
>> openstack-nova-compute-2014.1.1-3.el6.noarch 
>> openstack-neutron-2014.1.1-8.el6.noarch 
>> openstack-nova-common-2014.1.1-3.el6.noarch 
>> openstack-selinux-0.1.3-2.el6ost.noarch 
>> python-neutronclient-2.3.4-1.el6.noarch 
>> python-neutron-2014.1.1-8.el6.noarch
>> 
>> Any idea what went wrong?
>> 
>> Thanks a lot, Xin
>> 
>> 
>> _______________________________________________ Rdo-list mailing
>> list Rdo-list at redhat.com 
>> https://www.redhat.com/mailman/listinfo/rdo-list
> 
> _______________________________________________ Rdo-list mailing
> list Rdo-list at redhat.com 
> https://www.redhat.com/mailman/listinfo/rdo-list
-----BEGIN PGP SIGNATURE-----
Version: GnuPG/MacGPG2 v2.0.22 (Darwin)

iQEcBAEBCgAGBQJT9daRAAoJEC5aWaUY1u5720IIAMPAuKx9V6qFQjpu6gebeLQe
x8epuN1GLUcO/i3PzH3sCOJfbR4jcD1KkqMlNsHDXSQN4zSb6XU78JShLok0iAeC
Dj0dJR0eGcuqd4SWJH7toXayM4t3tcBFLV8dSICyYCBQSxmM1C8f/iNVd7cjNTsK
Jtm2qr6Pa3lDF8q0/rSqr428a1AzJ1Jp/kDJbe4yATCNdtrzAHjia2DB1wPZOrad
TxH4z6VGyOYDZJNoE965Gxu6Bdm79fJloUkIygWEiLMSS4CJJ7MJrhs0OG9TwCJt
TcQm9ds1EF4wYEK+m4MCR8UL49PnzLePqoE7odRFNcB38HURH2opkofNiO+qdlE=
=uVLT
-----END PGP SIGNATURE-----