[Rdo-list] Trying out Neutron Quickstart running into issues with netns (l2 agent and dhcp agent)

[Terry Wilson]

----- Original Message -----
> On 08/05/2013 04:27 AM, Thomas Graf wrote:
> > On 08/04/2013 05:47 PM, Kashyap Chamarthy wrote:
> >>>> 2013-08-04 09:08:05  WARNING [quantum.openstack.common.loopingcall]
> >>>> task run outlasted interval by 56.853869 sec
> >>>> 2013-08-04 09:08:06     INFO [quantum.agent.dhcp_agent]
> >>>> Synchronizing state
> >>>> 2013-08-04 09:32:34    ERROR [quantum.agent.dhcp_agent] Unable to
> >>>> enable dhcp.
> >>>> Traceback (most recent call last):
> >>>>    File
> >>>> "/usr/lib/python2.6/site-packages/quantum/agent/dhcp_agent.py", line
> >>>> 131, in call_driver
> >>>>      getattr(driver, action)()
> >>>>    File
> >>>> "/usr/lib/python2.6/site-packages/quantum/agent/linux/dhcp.py", line
> >>>> 124, in enable
> >>>>      reuse_existing=True)
> >>>>    File
> >>>> "/usr/lib/python2.6/site-packages/quantum/agent/dhcp_agent.py", line
> >>>> 554, in setup
> >>>>      namespace=namespace)
> >>>>    File
> >>>> "/usr/lib/python2.6/site-packages/quantum/agent/linux/interface.py",
> >>>> line 181, in plug
> >>>>      ns_dev.link.set_address(mac_address)
> >>>>    File
> >>>> "/usr/lib/python2.6/site-packages/quantum/agent/linux/ip_lib.py",
> >>>> line 180, in set_address
> >>>>      self._as_root('set', self.name, 'address', mac_address)
> >>>>    File
> >>>> "/usr/lib/python2.6/site-packages/quantum/agent/linux/ip_lib.py",
> >>>> line 167, in _as_root
> >>>>      kwargs.get('use_root_namespace', False))
> >>>>    File
> >>>> "/usr/lib/python2.6/site-packages/quantum/agent/linux/ip_lib.py",
> >>>> line 47, in _as_root
> >>>>      namespace)
> >>>>    File
> >>>> "/usr/lib/python2.6/site-packages/quantum/agent/linux/ip_lib.py",
> >>>> line 58, in _execute
> >>>>      root_helper=root_helper)
> >>>>    File
> >>>> "/usr/lib/python2.6/site-packages/quantum/agent/linux/utils.py",
> >>>> line 61, in execute
> >>>>      raise RuntimeError(m)
> >>>> RuntimeError:
> >>>> Command: ['sudo', 'quantum-rootwrap', '/etc/quantum/rootwrap.conf',
> >>>> 'ip', 'link', 'set', 'tap07d8cc77-fc', 'address', 'fa:16:3e:da:66:28']
> >>>> Exit code: 2
> >>>> Stdout: ''
> >>>> Stderr: 'RTNETLINK answers: Device or resource busy\n'
> > 
> > Quantum attempts to change the MAC address while the link is up. The
> > live MAC address change feature is not supported in the openstack
> > kernel at this point.
> > 
> > We can attempt a backport of the feature to the openstack kernel and
> > enable it for tap and veth devices or we modify quantum to bring down
> > the interface before changing the mac address and bring it up again
> > afterwards.
> 
> Thanks Thomas.  Or perhaps we need a fix to Quantum itself to create the
> link with the proper MAC address to begin with rather than changing it
> in a second step?
> 
> With the above error, I wonder if the Quantum Quickstart ever fully
> worked at all on either RHOS or RDO Grizzly?
> 
> Terry, how did you work around the above issue when testing on RHOS?

I didn't run into this issue when testing on RHOS or RDO. For me, on my test VMs, everything comes up properly on both systems (launching vm's, getting addresses, connecting vial floating ip, etc. just works)--although I haven't tested RHOS with the latest changes because the build was just done this morning.

Terry