Open Stack

The message indicates that more than one network has been found, and so Nova refuses to create a VM as it has no idea which one you want connected.
(Previously it used to connect them all, but as the order was arbitrary and not all images support multiple NICs this wasn’t as helpful as you might think).

To remove this error you need to clean up any networks you don’t need and/or change the test to be specific as to the network used.

            Gavin


From: Robert Parrott [mailto:parrott at g.harvard.edu]
Sent: Tuesday, December 03, 2013 1:23 PM
To: openstack at lists.openstack.org
Subject: [Openstack] Tempest tests failing


Hi All,

I’m using tempest to validate a deployed cluster, and while we have most things ironed out, I’m seeing a good number (20% or so) of the compute tests fail with the same error:

    BadRequest: Bad request

    Details: {'message': 'Multiple possible networks found, use a Network ID to be more specific.', 'code': '400’}

The tests that report this error are quite varied, and many of the tests involved don’t actually attempt to exercise the network.  Looking through the the bugs in launchpad that refer to this error, there is some speculation that this is really a bug/feature of the testing suite, but it’s far from definitive.

Does anyone have a handle on why this is occurring, and what we can do to remove the errors, be it testing environment setup, or if this is a bug of nova itself? I’m noticing that the testing process itself creates many objects in the OpenStack database, networks and otherwise, and doesn’t seem to remove them after a test completes successfully or not; is that the issue?

Thanks for any insight you can provide,

Rob

—
See my availability here:

  https://www.google.com/calendar/embed?src=parrott@g.harvard.edu&mode=week

Robert E. Parrott, Ph.D.
Senior Architect
Office of the CTO: Innovation and Architecture
Harvard University
Holyoke Center 760
1350 Massachusetts Ave.
Cambridge, MA 02138
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