Nova cannot create network

asked 2014-04-29 12:14:52 -0600

leonardo gravatar image

updated 2014-04-30 02:13:32 -0600

Hello All,

I followed all the steps of installing openstack on Debian Wheezy using this documentation. I am trying to setup the legacy network scenario where I have two nodes (one acting as controller and the latter acting as compute node). I have successfully setup Keystone, Image service and Nova controller. However, when the time comes to create the network by using legacy nova-network scenario, the following happens (i am just pasting the highlight of the logs);

2014-04-29 18:59:59.295 4844 DEBUG nova.api.openstack.compute.contrib.os_networks [req-54fef079-4796-4b5c-851f-0960d6a2e323 3f31b75b621d42849e6f90983120ac81 2188d77d01974be99f0390a273dff8e3] Creating network with label demo-net create /usr/lib/python2.7/dist-packages/nova/api/openstack/compute/contrib/

2014-04-29 18:59:59.308 4844 INFO oslo.messaging._drivers.impl_rabbit [-] Connected to AMQP server on localhost:5672

2014-04-29 18:59:59.324 4844 INFO oslo.messaging._drivers.impl_rabbit [-] Connected to AMQP server on localhost:5672

2014-04-29 19:00:59.385 4844 TRACE nova.api.openstack MessagingTimeout: Timed out waiting for a reply to message ID 38c920b0890341069d85556bd28f07a0

2014-04-29 19:00:59.385 4844 TRACE nova.api.openstack 

2014-04-29 19:00:59.389 4844 INFO nova.api.openstack [req-54fef079-4796-4b5c-851f-0960d6a2e323 3f31b75b621d42849e6f90983120ac81 2188d77d01974be99f0390a273dff8e3] returned with HTTP 500

2014-04-29 19:00:59.390 4844 DEBUG nova.api.openstack.wsgi [req-54fef079-4796-4b5c-851f-0960d6a2e323 3f31b75b621d42849e6f90983120ac81 2188d77d01974be99f0390a273dff8e3] Returning 500 to user: The server has either erred or is incapable of performing the requested operation. __call__ /usr/lib/python2.7/dist-packages/nova/api/openstack/

2014-04-29 19:00:59.390 4844 INFO nova.osapi_compute.wsgi.server [req-54fef079-4796-4b5c-851f-0960d6a2e323 3f31b75b621d42849e6f90983120ac81 2188d77d01974be99f0390a273dff8e3] "POST /v2/2188d77d01974be99f0390a273dff8e3/os-networks HTTP/1.1" status: 500 len: 335 time: 60.7838590

I am using the following command;

nova network-create demo-net --bridge br100 --multi-host T   --fixed-range-v4

Following is the output to make sure OpenStack has been setup correctly as per the guide till this point;

**# keystone user-list<br>**
|                id                |  name | enabled |     email      |
| 3f31b75b621d42849e6f90983120ac81 | admin |   True  | root@localhost |

**# glance image-list<br>**
| ID                                   | Name                | Disk Format | Container Format | Size     | Status |
| 88dfb568-92b5-4112-9eba-a36a39f3641b | cirros-0.3.2-x86_64 | qcow2       | bare             | 13167616 | active |

**#nova image-list<br>**
| ID                                   | Name                | Status | Server |
| 88dfb568-92b5-4112-9eba-a36a39f3641b | cirros-0.3.2-x86_64 | ACTIVE |        |

**#  nova network-create demo-net --bridge br100 --multi-host T --fixed-range-v4
ERROR: The server has either erred or is incapable of performing the requested operation. (HTTP 500) (Request-ID: req-2acbaa01-b401-43d4-8360-9d58cf12ae05)**

My hosts file is correctly setup as the guide suggests. What I have done so far;

1) Rebooted the controller
2) restarted RabbitMQ multiple times
3) Checked/Resetted the rabbitMQ passord (log tells it is connected)

Following is the rabbitMQ config from nova.conf;

**# RABBITMQ #**
rabbit_host = localhost
rabbit_userid = guest
rabbit_password = guest
**# The messaging module to use, defaults to kombu (works for rabbit).
**# You can also use qpid: nova.rpc.impl_qpid****
rpc_backend = nova.openstack.common.rpc.impl_kombu

Neutron is not setup since I intend to use legacy network. Any hints?

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answered 2014-04-30 02:08:00 -0600

leonardo gravatar image


So I finally managed to run the command. The solution is quite simple. My compute node was not fully setup and it also needs to be setup as well if we intend to run the Nova legacy network. Hope it helps anyone who might run into a similar situation.

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Can you provide more info on what you missed or needed to repair to fix this issue please ?

TheKid-89 gravatar imageTheKid-89 ( 2014-08-04 02:40:15 -0600 )edit

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Asked: 2014-04-29 12:14:52 -0600

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Last updated: Apr 30 '14