Ubuntu
nova package

nova [-] Could not find driver for connection_type None

Bug #1076353 reported by Eduardo Patrocinio
24
This bug affects 5 people
Affects Status Importance Assigned to Milestone
nova (Ubuntu)
Won't Fix
Undecided
Unassigned

Bug Description

Linux Version: Ubuntu 12.10 server

user@openstack:/var/log/nova$ nova-manage version
2012.2 (2012.2-LOCALBRANCH:LOCALREVISION)

Getting the following error in nova-volume.log:

2012-11-07 02:11:59 WARNING nova.common.deprecated [-] Deprecated Config: Specifying virt driver via connection_type is deprecated. Use compute_driver=classname instead.
2012-11-07 02:11:59 CRITICAL nova [-] Could not find driver for connection_type None

root@openstack:/etc/nova# grep -e connection_type -e compute_driver /etc/nova/*
/etc/nova/nova.conf:connection_type=libvirt
/etc/nova/nova.conf:compute_driver=libvirt.LibvirtDriver

The problem persists even if I comment the connection_type line.

Tags: nova-volume
Revision history for this message
Crue Jones (cruejones) wrote :

issue goes away if you add 'connection_type' back in to nova.conf even though it clearly states that it is deprecated and 'compute_driver' should be used instead.

Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in nova (Ubuntu):
status: New → Confirmed
Revision history for this message
whynotlinux (whynotlinux1) wrote :

hello to all

I have exactly the same bug

trace :

INFO nova.compute.manager [-] Loading compute driver 'nova.virt.connection.get_connection'
2012-11-15 11:18:34 WARNING nova.common.deprecated [-] Deprecated Config: Specifying virt driver via connection_type is deprecated. Use compute_driver=classname instead.
2012-11-15 11:18:34 CRITICAL nova [-] Could not find driver for connection_type None
2012-11-15 11:18:34 TRACE nova Traceback (most recent call last):
2012-11-15 11:18:34 TRACE nova File "/usr/bin/nova-compute", line 46, in <module>
2012-11-15 11:18:34 TRACE nova server = service.Service.create(binary='nova-compute')
2012-11-15 11:18:34 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/service.py", line 492, in create
2012-11-15 11:18:34 TRACE nova periodic_fuzzy_delay=periodic_fuzzy_delay)
2012-11-15 11:18:34 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/service.py", line 387, in __init__
2012-11-15 11:18:34 TRACE nova self.manager = manager_class(host=self.host, *args, **kwargs)
2012-11-15 11:18:34 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 228, in __init__
2012-11-15 11:18:34 TRACE nova importutils.import_object_ns('nova.virt', compute_driver),
2012-11-15 11:18:34 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/openstack/common/importutils.py", line 53, in import_object_ns
2012-11-15 11:18:34 TRACE nova return import_class(import_str)(*args, **kwargs)
2012-11-15 11:18:34 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/virt/connection.py", line 76, in get_connection
2012-11-15 11:18:34 TRACE nova raise exception.VirtDriverNotFound(name=FLAGS.connection_type)
2012-11-15 11:18:34 TRACE nova VirtDriverNotFound: Could not find driver for connection_type None
2012-11-15 11:18:34 TRACE nova

thank you for your help

Revision history for this message
Chuck Short (zulcss) wrote :

connection_type is invalid, i think you want libvirt_type.

Changed in nova (Ubuntu):
status: Confirmed → Won't Fix
Revision history for this message
Gui Maluf Balzana (guimalufb) wrote :

The only way to work for me is directly on the CLI type

# nova-compute --connection_type=libvirt

Even if I put connection_type inside /etc/nova/nova.conf does not work!

Revision history for this message
Thomas Leonard (tal-it-innovation) wrote :

What are the possible values for this option? The example file from the installation documentation doesn't have connection_type or libvirt_type:

http://docs.openstack.org/folsom/basic-install/content/basic-install_controller.html

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