Someone should look into this bug.VM spawn failing due to this

2014-09-23 05:15:09.974 5897 ERROR nova.compute.manager [req-5a9a7595-e37b-44fb-aa67-85a16fb90b57 4aa1c9b2265f427fa3a56dbd25706bcf fe88547b4886406aac0330e855a72a15] [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e] Instance failed to spawn
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e] Traceback (most recent call last):
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib/python2.6/site-packages/nova/compute/manager.py", line 1410, in _spawn
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     block_device_info)
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib/python2.6/site-packages/nova/virt/libvirt/driver.py", line 2071, in spawn
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     block_device_info, context=context)
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib/python2.6/site-packages/nova/virt/libvirt/driver.py", line 3222, in _create_domain_and_network
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     self.plug_vifs(instance, network_info)
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib/python2.6/site-packages/nova/virt/libvirt/driver.py", line 748, in plug_vifs
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     self.vif_driver.plug(instance, vif)
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib/python2.6/site-packages/nova_contrail_vif/contrailvif.py", line 128, in plug
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     **kwargs)
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib/python2.6/site-packages/contrail_vrouter_api/vrouter_api.py", line 123, in add_port
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     result = self._client.AddPort([data])
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib/python2.6/site-packages/contrail_vrouter_api/gen_py/instance_service/InstanceService.py", line 150, in AddPort
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     result = self._client.AddPort([data])
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib/python2.6/site-packages/contrail_vrouter_api/gen_py/instance_service/InstanceService.py", line 150, in AddPort
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     return self.recv_AddPort()
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib/python2.6/site-packages/contrail_vrouter_api/gen_py/instance_service/InstanceService.py", line 161, in recv_AddPort
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     (fname, mtype, rseqid) = self._iprot.readMessageBegin()
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib64/python2.6/site-packages/thrift/protocol/TBinaryProtocol.py", line 126, in readMessageBegin
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     sz = self.readI32()
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib64/python2.6/site-packages/thrift/protocol/TBinaryProtocol.py", line 206, in readI32
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     buff = self.trans.readAll(4)
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib64/python2.6/site-packages/thrift/transport/TTransport.py", line 58, in readAll
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     chunk = self.read(sz - have)
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib64/python2.6/site-packages/thrift/transport/TTransport.py", line 271, in read
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     self.readFrame()
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib64/python2.6/site-packages/thrift/transport/TTransport.py", line 275, in readFrame
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     buff = self.__trans.readAll(4)
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib64/python2.6/site-packages/thrift/transport/TTransport.py", line 58, in readAll
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     chunk = self.read(sz - have)
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib64/python2.6/site-packages/thrift/transport/TSocket.py", line 103, in read
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     buff = self.handle.recv(sz)
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib/python2.6/site-packages/eventlet/greenio.py", line 238, in recv
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     timeout_exc=socket.timeout("timed out"))
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib/python2.6/site-packages/eventlet/hubs/__init__.py", line 117, in trampoline
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     listener = hub.add(hub.READ, fileno, current.switch)
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib/python2.6/site-packages/eventlet/hubs/epolls.py", line 48, in add
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     listener = BaseHub.add(self, evtype, fileno, cb)
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]   File "/usr/lib/python2.6/site-packages/eventlet/hubs/hub.py", line 126, in add
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]     evtype, fileno, evtype))
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e] RuntimeError: Second simultaneous read on fileno 9 detected.  Unless you really know what you're doing, make sure that only one greenthread can read any particular socket.  Consider using a pools.Pool. If you do know what you're doing and want to disable this error, call eventlet.debug.hub_multiple_reader_prevention(False)
2014-09-23 05:15:09.974 5897 TRACE nova.compute.manager [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e]
2014-09-23 05:15:14.321 5897 ERROR nova.virt.libvirt.driver [-] [instance: 3d9284a7-4144-4ad6-b1cb-afd5c38bd44e] During wait destroy, instance disappeared.