Ask Your Question

Openstack Instance creation problem

asked 2018-04-25 08:37:05 -0500

almisouri gravatar image


I'm facing a problem when lanching a new openstack instance it shows me this error message:

Error: Failed to perform requested operation on instance "ub15_flavor", the instance has an error status: Please try again later [Error: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance f2b706fc-2619-4f15-8c07-5c216b4cc336.].

Note: I'm using Centos 7 - Openstack queens in Vmware workstation. I have tried with cirros minimal (512M Ram) and tried also with Centos and Ubuntu.

edit retag flag offensive close merge delete


Look for more information in the Nova log files.

Bernd Bausch gravatar imageBernd Bausch ( 2018-04-29 16:39:48 -0500 )edit

this is my nova-compute file:

ERROR nova.compute.manager [req-c7e4...20ce4e9c3 cecfc - default default] Instance failed network setup after 1 attempt(s): PortBindingFailed: Binding failed for port 1571

almisouri gravatar imagealmisouri ( 2018-04-30 12:16:53 -0500 )edit

And my neutron server log is:

neutron.plugins.ml2.managers [req-e7bcf65c-ee81-fff aaa- default default] Failed to bind port -a98d-b4fe6bb4ab5a on host localhost.localdomain for vnic_type normal usin

almisouri gravatar imagealmisouri ( 2018-04-30 12:17:34 -0500 )edit

There is something wrong with your network configuration. Check other Neutron log files. Binding is done by the mechanism driver, so the most promising place is the agent’s log on that compute node.

Bernd Bausch gravatar imageBernd Bausch ( 2018-04-30 17:26:26 -0500 )edit

1 answer

Sort by » oldest newest most voted

answered 2019-02-25 17:28:13 -0500

hossein-b gravatar image (beisner) : in an all-in-one deployment, the tenant/project network is behind a neutron router (NAT). In order to access them from the host, or outside the host, a floating ip address range would need to be defined, and a floating ip address would need to be assigned to the instance. It sounds like you are wanting to launch instances in the deployed cloud, and have those instances wired with L2 access to your local network (as well as L3 addresses from your local network). That can be done, but that is not the scenario provided by the “openstack with novalxd” conjure-up spell. Assuming this is an all-in-one development/test style deployment, the following long-form procedure doc should be helpful. (

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Get to know Ask OpenStack

Resources for moderators

Question Tools


Asked: 2018-04-25 08:37:05 -0500

Seen: 4,930 times

Last updated: Apr 25 '18