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Hello all,

I've run into a series of frustrating problems trying to get images to
attach correctly to running instances.  The current issue is that
after running a "nova volume-attach ..." command, I get the following
in compute.log on the compute host:

  2012-06-21 12:32:03 ERROR nova.rpc.impl_qpid
    [req-a4720bff-afa5-48a3-a01c-d6697d53e835 22bb8e502d3944ad953e72fc77879c2f
    76e2726cacca4be0bde6d8840f88c136] Timed out waiting for RPC response: None

...followed by a page or two of tracebacks from nova.rpc.impl_qpid and
nova.compute.manager, which seem to buried so far inside decorators
and RPC calls that I have a hard time figuring out what is actually
happening.  It *looks* like an Exception inside of attach_volume(),
which is a good sign, I guess.

I've posted the complete traceback here: https://gist.github.com/2966898

There is a nova-volume service running (on the compute host, because this is
where the disk space was available):

  Binary           Host                                 Zone             Status     State Updated_At
  nova-network     os-controller.int.seas.harvard.edu   nova             disabled   XXX   2012-06-21 14:01:41
  nova-cert        os-controller.int.seas.harvard.edu   nova             enabled    :-)   2012-06-21 16:35:22
  nova-scheduler   os-controller.int.seas.harvard.edu   nova             enabled    :-)   2012-06-21 16:35:22
  nova-consoleauth os-controller.int.seas.harvard.edu   nova             enabled    :-)   2012-06-21 16:35:22
  nova-compute     os-host.int.seas.harvard.edu         nova             enabled    :-)   2012-06-21 16:35:22
  nova-volume      os-host.int.seas.harvard.edu         nova             enabled    :-)   2012-06-21 16:35:15
  nova-console     os-controller.int.seas.harvard.edu   nova             enabled    :-)   2012-06-21 16:35:16
  nova-network     os-host.int.seas.harvard.edu         nova             enabled    :-)   2012-06-21 16:35:17

Creating volumes works just fine.

-- 
Lars Kellogg-Stedman <lars at seas.harvard.edu>       |
Senior Technologist                                | http://ac.seas.harvard.edu/
Academic Computing                                 | http://code.seas.harvard.edu/
Harvard School of Engineering and Applied Sciences |