Open Stack

> I upgraded release OpenStack from Kilo to Mitaka.
>But now I can't start any Instance. At the compute node nova daemons said:
> 2016-04-20 12:40:15.395 226509 ERROR oslo_messaging.rpc.dispatcher [req-86e4ab2e-229a-438d-87d2-d9ce9f749dbc 79401c3a746740ef826762ca9eaeb207 3029462986ac400ca2c2c6ac4c9af5a7 - - -] Exception during message handling: Timed out waiting for a reply to message ID cb754491dfb14d8793ca6ee05ae420c9

This indicates something is not responding to a RPC call (via rabbitmq)



> snip
> 2016-04-20 12:40:15.395 226509 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/nova/network/api.py", line 385, in _get_instance_nw_info
> 2016-04-20 12:40:15.395 226509 ERROR oslo_messaging.rpc.dispatcher nw_info = self.network_rpcapi.get_instance_nw_info(context, **args)
> 2016-04-20 12:40:15.395 226509 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/nova/network/rpcapi.py", line 209, in get_instance_nw_info

This suggests it has something to do with nova doing a call to Neutron.
Have you checked if Neutron is working properly and can connect to the neutron-agent?

Cheers,
Robert van Leeuwen

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