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No valid host was found. There are not enough hosts available.

I've been following the docs for liberty release, and got stuck when trying to launch a private instance on a private network. Launching a public instance on a public network runs fine! I can even lauch 2 or 3 instances, but whenever I try to launch a private instance I get this error:

No valid host was found. There are not enough hosts available.

This happens either using the web interface (Horizon) or the linux terminal. Already ran

nova-manage service describe_resource compute

which returned this:

HOST                              PROJECT     cpu mem(mb)     hdd
compute         (total)                         2    2001      35
compute         (used_now)                      1    1024       1
compute         (used_max)                      1     512       1

Since it is a cirros image with tiny flavor (512MB) seems there are enough resources. What should I do to resolve this issue? I'm testing openstack on VMs with virtualbox.

No valid host was found. There are not enough hosts available.

I've been following the docs for liberty release, and got stuck when trying to launch a private instance on a private network. Launching a public instance on a public network runs fine! I can even lauch 2 or 3 instances, but whenever I try to launch a private instance I get this error:

No valid host was found. There are not enough hosts available.

This happens either using the web interface (Horizon) or the linux terminal. Already ran

nova-manage service describe_resource compute

which returned this:

HOST                              PROJECT     cpu mem(mb)     hdd
compute         (total)                         2    2001      35
compute         (used_now)                      1    1024       1
compute         (used_max)                      1     512       1

Since it is a cirros image with tiny flavor (512MB) seems there are enough resources. What should I do to resolve this issue? I'm testing openstack on VMs with virtualbox.


Update 1:

By public instance, I actually meant "Launch an instance on the public network", as this link: http://docs.openstack.org/liberty/install-guide-ubuntu/launch-instance-public.html

Similar idea goes to private instance: That actually means "Launch an instance on a private network", as this link: http://docs.openstack.org/liberty/install-guide-ubuntu/launch-instance-private.html