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Re: [Nova] Unable to start nova-api

To: Trinath Somanchi <trinath.somanchi@xxxxxxxxx>
From: Unmesh Gurjar <unmesh.gurjar@xxxxxxxxx>
Date: Tue, 5 Feb 2013 15:47:41 +0530
Cc: "openstack@xxxxxxxxxxxxxxxxxxx" <openstack@xxxxxxxxxxxxxxxxxxx>
In-reply-to: <CAH8HgmYv3x093Dyi_-t99LSrp0GcVOGVQNuN8tfXAydqWLAKFg@mail.gmail.com>
Trinath,

You probably have a wrong config setting. Please check the value of
'network_api_class' in your nova.conf and confirm that the module with the
specified class exists.

The default value of this parameter is "nova.network.api.API", so you
should expect class 'API' in nova/network/api.py of your Nova codebase.

Regards,
Unmesh.

On Tue, Feb 5, 2013 at 3:23 PM, Trinath Somanchi <trinath.somanchi@xxxxxxxxx
> wrote:

> Hi-
>
>
>
> When I start the nova-api  service, I’m getting this error:
>
>
>
> Can anyone help me troubleshoot the issue
>
>
>
> root@NewFolsomController:/etc/nova# nova-api
> --flagfile=/etc/nova/nova.conf
>
> 2013-02-05 12:29:29 DEBUG nova.utils [-] Inner Exception: No module named
> api from (pid=19874) import_class
> /usr/lib/python2.7/dist-packages/nova/utils.py:78
>
> 2013-02-05 12:29:29 CRITICAL nova [-] Class API could not be found: No
> module named api
>
> 2013-02-05 12:29:29 TRACE nova Traceback (most recent call last):
>
> 2013-02-05 12:29:29 TRACE nova   File "/usr/bin/nova-api", line 51, in
> <module>
>
> 2013-02-05 12:29:29 TRACE nova     servers.append(service.WSGIService(api))
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/nova/service.py", line 326, in __init__
>
> 2013-02-05 12:29:29 TRACE nova     self.app = self.loader.load_app(name)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/nova/wsgi.py", line 388, in load_app
>
> 2013-02-05 12:29:29 TRACE nova     return deploy.loadapp("config:%s" %
> self.config_path, name=name)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 247, in
> loadapp
>
> 2013-02-05 12:29:29 TRACE nova     return loadobj(APP, uri, name=name,
> **kw)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 272, in
> loadobj
>
> 2013-02-05 12:29:29 TRACE nova     return context.create()
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 710, in
> create
>
> 2013-02-05 12:29:29 TRACE nova     return self.object_type.invoke(self)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 144, in
> invoke
>
> 2013-02-05 12:29:29 TRACE nova     **context.local_conf)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/deploy/util.py", line 56, in
> fix_call
>
> 2013-02-05 12:29:29 TRACE nova     val = callable(*args, **kw)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/urlmap.py", line 25, in
> urlmap_factory
>
> 2013-02-05 12:29:29 TRACE nova     app = loader.get_app(app_name,
> global_conf=global_conf)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 350, in
> get_app
>
> 2013-02-05 12:29:29 TRACE nova     name=name,
> global_conf=global_conf).create()
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 710, in
> create
>
> 2013-02-05 12:29:29 TRACE nova     return self.object_type.invoke(self)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 144, in
> invoke
>
> 2013-02-05 12:29:29 TRACE nova     **context.local_conf)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/deploy/util.py", line 56, in
> fix_call
>
> 2013-02-05 12:29:29 TRACE nova     val = callable(*args, **kw)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/nova/api/auth.py", line 48, in
> pipeline_factory
>
> 2013-02-05 12:29:29 TRACE nova     filters = [loader.get_filter(n) for n
> in pipeline[:-1]]
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 354, in
> get_filter
>
> 2013-02-05 12:29:29 TRACE nova     name=name,
> global_conf=global_conf).create()
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 366, in
> filter_context
>
> 2013-02-05 12:29:29 TRACE nova     FILTER, name=name,
> global_conf=global_conf)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 458, in
> get_context
>
> 2013-02-05 12:29:29 TRACE nova     section)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 517, in
> _context_from_explicit
>
> 2013-02-05 12:29:29 TRACE nova     value = import_string(found_expr)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 22, in
> import_string
>
> 2013-02-05 12:29:29 TRACE nova     return
> pkg_resources.EntryPoint.parse("x=" + s).load(False)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 1989, in load
>
> 2013-02-05 12:29:29 TRACE nova     entry = __import__(self.module_name,
> globals(),globals(), ['__name__'])
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/nova/api/ec2/__init__.py", line 30, in
> <module>
>
> 2013-02-05 12:29:29 TRACE nova     from nova.api.ec2 import apirequest
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/nova/api/ec2/apirequest.py", line 27, in
> <module>
>
> 2013-02-05 12:29:29 TRACE nova     from nova.api.ec2 import ec2utils
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/nova/api/ec2/ec2utils.py", line 25, in
> <module>
>
> 2013-02-05 12:29:29 TRACE nova     from nova import network
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/nova/network/__init__.py", line 24, in
> <module>
>
> 2013-02-05 12:29:29 TRACE nova     API =
> nova.utils.import_class(nova.flags.FLAGS.network_api_class)
>
> 2013-02-05 12:29:29 TRACE nova   File
> "/usr/lib/python2.7/dist-packages/nova/utils.py", line 79, in import_class
>
> 2013-02-05 12:29:29 TRACE nova     raise
> exception.ClassNotFound(class_name=class_str, exception=exc)
>
> 2013-02-05 12:29:29 TRACE nova ClassNotFound: Class API could not be
> found: No module named api
>
> 2013-02-05 12:29:29 TRACE nova
>
> --
> Regards,
> ----------------------------------------------
> Trinath Somanchi,
> +91 9866 235 130
>
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Follow ups

Re: [Nova] Unable to start nova-api
From: Trinath Somanchi, 2013-02-05
References

[Nova] Unable to start nova-api
From: Trinath Somanchi, 2013-02-05