OpenStack Compute (nova)

Nova Class not found error

Asked by Anbalagan

Hi

I am seeing the following error in my testbed which has got latest Nova and Glance,.
Using the nova flag
--FLAGS.image_service=nova.image.local.LocalImageService

I have posted in nova but still waiting for response, can anyone of you help me in this regard

2011-09-28 10:46:32,124 DEBUG nova.utils [-] Inner Exception: No module named xattr from (pid=6637)
import_class /usr/local/lib/python2.7/dist-packages/nova-2011.3-py2.7.egg/nova/utils.py:65
2011-09-28 10:46:32,135 CRITICAL nova [-] Class Client could not be found
(nova): TRACE: Traceback (most recent call last):
(nova): TRACE: File "/usr/local/bin/nova-compute", line 5, in <module>
(nova): TRACE: pkg_resources.run_script('nova==2011.3', 'nova-compute')
(nova): TRACE: File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 467, in run_script
(nova): TRACE: self.require(requires)[0].run_script(script_name, ns)
(nova): TRACE: File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 1200, in run_script
(nova): TRACE: execfile(script_filename, namespace, namespace)
(nova): TRACE: File "/usr/local/lib/python2.7/dist-packages/nova-2011.3-py2.7.egg/EGG-INFO/scripts/nova-compute", line 47, in <module>
(nova): TRACE: server = service.Service.create(binary='nova-compute')
(nova): TRACE: File "/usr/local/lib/python2.7/dist-packages/nova-2011.3-py2.7.egg/nova/service.py", line 216, in create
(nova): TRACE: report_interval, periodic_interval)
(nova): TRACE: File "/usr/local/lib/python2.7/dist-packages/nova-2011.3-py2.7.egg/nova/service.py", line 125, in __init__
(nova): TRACE: manager_class = utils.import_class(self.manager_class_name)
(nova): TRACE: File "/usr/local/lib/python2.7/dist-packages/nova-2011.3-py2.7.egg/nova/utils.py", line 62, in import_class
(nova): TRACE: __import__(mod_str)
(nova): TRACE: File "/usr/local/lib/python2.7/dist-packages/nova-2011.3-py2.7.egg/nova/compute/__init__.py", line 19, in <module>
(nova): TRACE: from nova.compute.api import API
(nova): TRACE: File "/usr/local/lib/python2.7/dist-packages/nova-2011.3-py2.7.egg/nova/compute/api.py", line 29, in <module>
(nova): TRACE: import nova.image
(nova): TRACE: File "/usr/local/lib/python2.7/dist-packages/nova-2011.3-py2.7.egg/nova/image/__init__.py", line 22, in <module>
(nova): TRACE: from nova.image import glance
(nova): TRACE: File "/usr/local/lib/python2.7/dist-packages/nova-2011.3-py2.7.egg/nova/image/glance.py", line 43, in <module>
(nova): TRACE: GlanceClient = utils.import_class('glance.client.Client')
(nova): TRACE: File "/usr/local/lib/python2.7/dist-packages/nova-2011.3-py2.7.egg/nova/utils.py", line 66, in import_class
(nova): TRACE: raise exception.ClassNotFound(class_name=class_str)
(nova): TRACE: ClassNotFound: Class Client could not be found
(nova): TRACE:

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Dan Prince (dan-prince) said : 		#1

Hi Anbalagan,

The local image service no longer exists:

https://bugs.launchpad.net/nova/+bug/723947

The default image service is now:

  nova.image.glance.GlanceImageService

Can you try this option for image_service instead. Also make sure to set glance_api_servers as well if glance is running on a separate server.

Hope this helps.

Revision history for this message
Anbalagan (anbalagan123) said : 		#2

Hi

I tried Local and glance options seperately. Still I am getting the same errors.
This is the nova image release on 9/26 , so suspecting something wrong in this release.
Does anyone installed this image and it is working without any errors. ?

root@ubuntushow:/etc/nova# cat nova.conf.glance
--dhcpbridge_flagfile=/etc/nova/nova.conf
--dhcpbridge=/usr/bin/nova-dhcpbridge
--logdir=/var/log/nova
--state_path=/var/lib/nova
--lock_path=/var/lock/nova
--verbose
--s3_host=10.37.39.57
--rabbit_host=10.37.39.57
--cc_host=10.37.39.57
--ec2_url=http://10.37.39.57:9773/services/Cloud
--fixed_range=192.168.1.0/24
--network_size=256
--FAKE_subdomain=ec2
--routing_source_ip=10.37.39.57
--verbose
--sql_connection=mysql://root:root@10.37.39.57/nova
--network_manager=nova.network.manager.FlatManager
--glance_host=10.37.39.57
--glance_api_servers=10.37.39.57:9774
--image_service=nova.image.glance.GlanceImageService

Revision history for this message
Sateesh (sateesh-chodapuneedi) said : 		#3

Are you getting the same error still?
Can you paste the error, otherwise?

>> --glance_api_servers=10.37.39.57:9774
Also I think you need to provide port 9292 for glance api servers.
Like, --glance_api_servers=10.37.39.57:9292

Can you help with this problem?

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