I can confirm Ian Wells' suspicion that the problem is related to
scheduling. If there is an error interacting with Neutron during
scheduling, the vm will be rescheduled but a port that was created
before the scheduling failure will persist. Nova needs to be updated to
remove or reuse the port in question.
screen-n-sch.log:2013-12-18 10:00:27.458 ERROR nova.scheduler.filter_scheduler
[req-2e3e4274-8348-471a-b9cb-69d0fd8f4180 demo demo] [instance:
45d132e7-bf85-4c18-b751-738767e49eb5] Error from last host: precise-devstack
(node precise-devstack): Traceback (most recent call last):
File "/opt/stack/nova/nova/compute/manager.py", line 1058, in _build_instance
set_access_ip=set_access_ip)
File "/opt/stack/nova/nova/compute/manager.py", line 1462, in _spawn
LOG.exception(_('Instance failed to spawn'), instance=instance)
File "/opt/stack/nova/nova/openstack/common/excutils.py", line 68, in __exit__
six.reraise(self.type_, self.value, self.tb)
File "/opt/stack/nova/nova/compute/manager.py", line 1459, in _spawn
block_device_info)
File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 2168, in spawn
admin_pass=admin_password)
File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 2529, in
_create_image
content=files, extra_md=extra_md, network_info=network_info)
File "/opt/stack/nova/nova/api/metadata/base.py", line 165, in __init__
ec2utils.get_ip_info_for_instance_from_nw_info(network_info)
File "/opt/stack/nova/nova/api/ec2/ec2utils.py", line 149, in
get_ip_info_for_instance_from_nw_info
fixed_ips = nw_info.fixed_ips()
File "/opt/stack/nova/nova/network/model.py", line 368, in _sync_wrapper
self.wait()
File "/opt/stack/nova/nova/network/model.py", line 400, in wait
self[:] = self._gt.wait()
File "/usr/local/lib/python2.7/dist-packages/eventlet/greenthread.py", line
168, in wait
return self._exit_event.wait()
File "/usr/local/lib/python2.7/dist-packages/eventlet/event.py", line 120, in
wait
current.throw(*self._exc)
File "/usr/local/lib/python2.7/dist-packages/eventlet/greenthread.py", line
194, in main
result = function(*args, **kwargs)
File "/opt/stack/nova/nova/compute/manager.py", line 1243, in
_allocate_network_async
dhcp_options=dhcp_options)
File "/opt/stack/nova/nova/network/neutronv2/api.py", line 352, in
allocate_for_instance
LOG.exception(msg, port_id)
File "/opt/stack/nova/nova/openstack/common/excutils.py", line 68, in __exit__
six.reraise(self.type_, self.value, self.tb)
File "/opt/stack/nova/nova/network/neutronv2/api.py", line 329, in
allocate_for_instance
security_group_ids, available_macs, dhcp_opts))
File "/opt/stack/nova/nova/network/neutronv2/api.py", line 180, in
_create_port
port_id = port_client.create_port(port_req_body)['port']['id']
File "/opt/stack/python-neutronclient/neutronclient/v2_0/client.py", line
112, in with_params
ret = self.function(instance, *args, **kwargs)
File "/opt/stack/python-neutronclient/neutronclient/v2_0/client.py", line
317, in create_port
return self.post(self.ports_path, body=body)
File "/opt/stack/python-neutronclient/neutronclient/v2_0/client.py", line
1242, in post
headers=headers, params=params)
File "/opt/stack/python-neutronclient/neutronclient/v2_0/client.py", line
1157, in do_request
resp, replybody = self.httpclient.do_request(action, method, body=body)
File "/opt/stack/python-neutronclient/neutronclient/client.py", line 192, in
do_request
**kwargs)
File "/opt/stack/python-neutronclient/neutronclient/client.py", line 154, in
_cs_request
raise exceptions.ConnectionFailed(reason=e)
ConnectionFailed: Connection to neutron failed: timed out
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https://bugs.launchpad.net/bugs/1160442
Title:
when boot many vms with quantum, nova sometimes allocates two quantum
ports rather than one
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