[Openstack] [Openstack-operators] [openstack] Unable to launch an instance

Amit Kumar ebiibe82 at gmail.com
Wed Mar 1 14:12:31 UTC 2017

Thanks you all for your responses.

Problem is resolved at my end with the help of folks in #openstack-ansible
chat room. Problem was in my yml configuration file where a non-existent
interface was specified.


On Wed, Mar 1, 2017 at 12:24 AM, Kris G. Lindgren <klindgren at godaddy.com>

> You should look at the compute node and the scheduler for actual error
> logs as said below.
>  But one things I see is that you are using qcow2 images, but have disk in
> your flavor set to zero.  Seems like the problem is that your image is
> larger than the virtual disk that you are creating via your flavor.  Does
> booting a VM using a default flavor work?
> ___________________________________________________________________
> Kris Lindgren
> Senior Linux Systems Engineer
> GoDaddy
> On 2/28/17, 11:26 AM, "Mikhail Medvedev" <mihailmed at gmail.com> wrote:
>     On Tue, Feb 28, 2017 at 11:49 AM, Amit Kumar <ebiibe82 at gmail.com>
> wrote:
>     > Hi All,
>     >
>     > I have installed Openstack Newton using Openstack-Ansible. While
> creating an
>     > instance, it is failing with following error:
>     >
>     > MessageNo valid host was found. There are not enough hosts
>     The "not enough hosts" could be due to any number of reasons. To know
>     exactly why, check your /var/log/nova/nova-scheduler.log on
>     controller. The error means that nova scheduler was not able to find
>     any suitable hosts to boot the VM. It could be for example because you
>     are using a flavor that does not fit, or because your compute node
>     appears dead to controller. In any case, nova scheduler log should
>     make it a bit clearer.
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