Yes. Should be resolved with the update then. That is good news.
On Apr 5, 2012 6:35 PM, "David Lawson" <email address hidden> wrote:

> I'm assuming you meant /usr/lib/python2.7/dist-packages/nova/utils.py,
> if so it doesn't have a GreenFileLock class.  I assume that means we
> need to update and this will be resolved.
>
> --
> You received this bug notification because you are subscribed to
> OpenStack Compute (nova).
> https://bugs.launchpad.net/bugs/973609
>
> Title:
>  Instances go to error state with RPC timeout
>
> Status in OpenStack Compute (Nova):
>  Incomplete
>
> Bug description:
>  We've been seeing a trend of people being unable to start instances,
>  investigation yields the following tracebacks in the nova-compute.log
>  on the relevant compute nodes:
>
>  2012-04-04 14:21:10 ERROR nova.compute.manager [-] [instance:
> d86678fb-2a29-4b4e-84b4-c1cb2d81a6e2] Instance failed network setup
>  (nova.compute.manager): TRACE: Traceback (most recent call last):
>  (nova.compute.manager): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 559, in
> _allocate_network
>  (nova.compute.manager): TRACE:     requested_networks=requested_networks)
>  (nova.compute.manager): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/network/api.py", line 170, in
> allocate_for_instance
>  (nova.compute.manager): TRACE:     'args': args})
>  (nova.compute.manager): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/__init__.py", line 68, in call
>  (nova.compute.manager): TRACE:     return _get_impl().call(context,
> topic, msg, timeout)
>  (nova.compute.manager): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 674, in call
>  (nova.compute.manager): TRACE:     return rpc_amqp.call(context, topic,
> msg, timeout, Connection.pool)
>  (nova.compute.manager): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/amqp.py", line 338, in call
>  (nova.compute.manager): TRACE:     rv = list(rv)
>  (nova.compute.manager): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/amqp.py", line 299, in __iter__
>  (nova.compute.manager): TRACE:     self._iterator.next()
>  (nova.compute.manager): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 572, in
> iterconsume
>  (nova.compute.manager): TRACE:     yield self.ensure(_error_callback,
> _consume)
>  (nova.compute.manager): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 503, in
> ensure
>  (nova.compute.manager): TRACE:     error_callback(e)
>  (nova.compute.manager): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 553, in
> _error_callback
>  (nova.compute.manager): TRACE:     raise rpc_common.Timeout()
>  (nova.compute.manager): TRACE: Timeout: Timeout while waiting on RPC
> response.
>  (nova.compute.manager): TRACE:
>  2012-04-04 14:21:10 ERROR nova.rpc.amqp [-] Exception during message
> handling
>  (nova.rpc.amqp): TRACE: Traceback (most recent call last):
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/amqp.py", line 252, in
> _process_data
>  (nova.rpc.amqp): TRACE:     rval = node_func(context=ctxt, **node_args)
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/exception.py", line 114, in wrapped
>  (nova.rpc.amqp): TRACE:     return f(*args, **kw)
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 177, in
> decorated_function
>  (nova.rpc.amqp): TRACE:     sys.exc_info())
>  (nova.rpc.amqp): TRACE:   File "/usr/lib/python2.7/contextlib.py", line
> 24, in __exit__
>  (nova.rpc.amqp): TRACE:     self.gen.next()
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 171, in
> decorated_function
>  (nova.rpc.amqp): TRACE:     return function(self, context, instance_uuid,
> *args, **kwargs)
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 648, in
> run_instance
>  (nova.rpc.amqp): TRACE:     self._run_instance(context, instance_uuid,
> **kwargs)
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 451, in
> _run_instance
>  (nova.rpc.amqp): TRACE:     self._set_instance_error_state(context,
> instance_uuid)
>  (nova.rpc.amqp): TRACE:   File "/usr/lib/python2.7/contextlib.py", line
> 24, in __exit__
>  (nova.rpc.amqp): TRACE:     self.gen.next()
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 424, in
> _run_instance
>  (nova.rpc.amqp): TRACE:     requested_networks)
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 559, in
> _allocate_network
>  (nova.rpc.amqp): TRACE:     requested_networks=requested_networks)
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/network/api.py", line 170, in
> allocate_for_instance
>  (nova.rpc.amqp): TRACE:     'args': args})
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/__init__.py", line 68, in call
>  (nova.rpc.amqp): TRACE:     return _get_impl().call(context, topic, msg,
> timeout)
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 674, in call
>  (nova.rpc.amqp): TRACE:     return rpc_amqp.call(context, topic, msg,
> timeout, Connection.pool)
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/amqp.py", line 338, in call
>  (nova.rpc.amqp): TRACE:     rv = list(rv)
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/amqp.py", line 299, in __iter__
>  (nova.rpc.amqp): TRACE:     self._iterator.next()
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 572, in
> iterconsume
>  (nova.rpc.amqp): TRACE:     yield self.ensure(_error_callback, _consume)
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 503, in
> ensure
>  (nova.rpc.amqp): TRACE:     error_callback(e)
>  (nova.rpc.amqp): TRACE:   File
> "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 553, in
> _error_callback
>  (nova.rpc.amqp): TRACE:     raise rpc_common.Timeout()
>  (nova.rpc.amqp): TRACE: Timeout: Timeout while waiting on RPC response.
>  (nova.rpc.amqp): TRACE:
>
>  Then the instance is destroyed because it couldn't come up cleanly.
>  Restarting nova-network on the network manager, then nova-compute on
>  the compute node seems to fix this for a time, but it recurs after a
>  few hours.  Is there further debugging information we can provide?  I
>  haven't found log messages that appear related in nova-network or the
>  rabbitmq logs.
>
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>