nova-api throws TypeError exception while loading osapi_compute

[Kali]

Using git revision: e6100f593413de77cc825cb9aeb5b86a739874e9

When I run nova-api without an arguments I get an exception. I used the api-paste.ini that was in the source tree.

2015-11-16 16:21:28.376 47780 DEBUG nova.wsgi [-] Loading app osapi_compute from /etc/nova/api-paste.ini load_app /usr/lib/python2.7/site-packages/nova/wsgi.py:543
2015-11-16 16:21:28.380 47780 CRITICAL nova [-] TypeError: factory() takes exactly 3 arguments (2 given); got ({'__file...va'}, oslo_config_project=...), wanted (cls, global_conf, allowed_origin, **local_conf)
2015-11-16 16:21:28.380 47780 ERROR nova Traceback (most recent call last):
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/bin/nova-api", line 10, in <module>
2015-11-16 16:21:28.380 47780 ERROR nova sys.exit(main())
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/nova/cmd/api.py", line 56, in main
2015-11-16 16:21:28.380 47780 ERROR nova server = service.WSGIService(api, use_ssl=should_use_ssl)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/nova/service.py", line 328, in __init__
2015-11-16 16:21:28.380 47780 ERROR nova self.app = self.loader.load_app(name)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/nova/wsgi.py", line 544, in load_app
2015-11-16 16:21:28.380 47780 ERROR nova return deploy.loadapp("config:%s" % self.config_path, name=name)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 247, in loadapp
2015-11-16 16:21:28.380 47780 ERROR nova return loadobj(APP, uri, name=name, **kw)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 272, in loadobj
2015-11-16 16:21:28.380 47780 ERROR nova return context.create()
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 710, in create
2015-11-16 16:21:28.380 47780 ERROR nova return self.object_type.invoke(self)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 144, in invoke
2015-11-16 16:21:28.380 47780 ERROR nova **context.local_conf)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/util.py", line 59, in fix_call
2015-11-16 16:21:28.380 47780 ERROR nova reraise(*exc_info)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/compat.py", line 22, in reraise
2015-11-16 16:21:28.380 47780 ERROR nova exec('raise t, e, tb', dict(t=t, e=e, tb=tb))
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/util.py", line 56, in fix_call
2015-11-16 16:21:28.380 47780 ERROR nova val = callable(*args, **kw)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/nova/api/openstack/urlmap.py", line 160, in urlmap_factory
2015-11-16 16:21:28.380 47780 ERROR nova app = loader.get_app(app_name, global_conf=global_conf)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 350, in get_app
2015-11-16 16:21:28.380 47780 ERROR nova name=name, global_conf=global_conf).create()
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 710, in create
2015-11-16 16:21:28.380 47780 ERROR nova return self.object_type.invoke(self)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 144, in invoke
2015-11-16 16:21:28.380 47780 ERROR nova **context.local_conf)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/util.py", line 59, in fix_call
2015-11-16 16:21:28.380 47780 ERROR nova reraise(*exc_info)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/compat.py", line 22, in reraise
2015-11-16 16:21:28.380 47780 ERROR nova exec('raise t, e, tb', dict(t=t, e=e, tb=tb))
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/util.py", line 56, in fix_call
2015-11-16 16:21:28.380 47780 ERROR nova val = callable(*args, **kw)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/nova/api/auth.py", line 79, in pipeline_factory_v21
2015-11-16 16:21:28.380 47780 ERROR nova return _load_pipeline(loader, local_conf[CONF.auth_strategy].split())
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/nova/api/auth.py", line 58, in _load_pipeline
2015-11-16 16:21:28.380 47780 ERROR nova filters = [loader.get_filter(n) for n in pipeline[:-1]]
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 354, in get_filter
2015-11-16 16:21:28.380 47780 ERROR nova name=name, global_conf=global_conf).create()
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 710, in create
2015-11-16 16:21:28.380 47780 ERROR nova return self.object_type.invoke(self)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 161, in invoke
2015-11-16 16:21:28.380 47780 ERROR nova context.global_conf, **context.local_conf)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/util.py", line 59, in fix_call
2015-11-16 16:21:28.380 47780 ERROR nova reraise(*exc_info)
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/compat.py", line 22, in reraise
2015-11-16 16:21:28.380 47780 ERROR nova exec('raise t, e, tb', dict(t=t, e=e, tb=tb))
2015-11-16 16:21:28.380 47780 ERROR nova File "/usr/lib/python2.7/site-packages/paste/deploy/util.py", line 56, in fix_call
2015-11-16 16:21:28.380 47780 ERROR nova val = callable(*args, **kw)
2015-11-16 16:21:28.380 47780 ERROR nova TypeError: factory() takes exactly 3 arguments (2 given); got ({'__file...va'}, oslo_config_project=...), wanted (cls, global_conf, allowed_origin, **local_conf)
2015-11-16 16:21:28.380 47780 ERROR nova

----------------

Here is my nova.conf file:

[DEFAULT]
rpc_backend = rabbit
my_ip = 10.1.255.1
auth_strategy = keystone
enabled_apis=osapi_compute,metadata
verbose = True

network_api_class = nova.network.neutronv2.api.API
security_group_api = neutron
linuxnet_interface_driver = nova.network.linux_net.NeutronLinuxBridgeInterfaceDriver
firewall_driver = nova.virt.firewall.NoopFirewallDriver

[oslo_messaging_rabbit]
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = ******

[keystone_authtoken]
auth_uri = http://controller:5000
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = nova
password = ******

[vnc]
vncserver_listen = 10.1.255.1
vncserver_proxyclient_address = 10.1.255.1

[glance]
host = controller

[oslo_concurrency]
lock_path = /var/lib/nova/tmp

[database]
connection = mysql://nova:******@controller/nova

[Alex Xu (xuhj)]

@kali, can you share your '/etc/nova/api-paste.ini' file?

[John Thompson (p-john-t)]

This issue also exists for me at this installation step (on Controller machine):

http://docs.openstack.org/liberty/install-guide-rdo/nova-verify.html

I'm installing on CentOS 7.2.1511 (x86_64).

Earlier in the process, I used these commands to acquire the Nova software -

yum install openstack-nova-api openstack-nova-cert \
  openstack-nova-conductor openstack-nova-console \
  openstack-nova-novncproxy openstack-nova-scheduler \
  python-novaclient

The nova-api.log message:

2016-01-28 08:55:03.466 DEBUG nova.wsgi [^[[00;36m-] ^[[01;35mLoading app osapi_compute from /etc/nova/api-paste.ini^[[00m ^[[00;33mfrom (pid=25370) load_app /usr/lib/python2.7/site-packages/nova/wsgi.py:542^[[00m
2016-01-28 08:55:03.471 CRITICAL nova [^[[00;36m-] ^[[01;35mTypeError: factory() takes exactly 3 arguments (2 given); got ({'__file...va'}, oslo_config_project=...), wanted (cls, global_conf, allowed_origin, **local_conf)

The shell command line and response:

# nova service-list
ERROR (ConnectionRefused): Unable to establish connection to http://controller:8774/v2/

Related Nova processes running:

# ps -ef | grep nova
nova 1122 1 0 Jan27 ? 00:00:02 /usr/bin/python2 /usr/bin/nova-cert
nova 1124 1 0 Jan27 ? 00:08:47 /usr/bin/python2 /usr/bin/nova-conductor
nova 1133 1 0 Jan27 ? 00:00:19 /usr/bin/python2 /usr/bin/nova-novncproxy --web /usr/share/novnc/
nova 1134 1 0 Jan27 ? 00:00:42 /usr/bin/python2 /usr/bin/nova-scheduler
nova 1139 1 0 Jan27 ? 00:00:36 /usr/bin/python2 /usr/bin/nova-consoleauth
nova 2828 1124 0 Jan27 ? 00:00:32 /usr/bin/python2 /usr/bin/nova-conductor
nova 2829 1124 0 Jan27 ? 00:00:35 /usr/bin/python2 /usr/bin/nova-conductor
nova 26451 1 99 09:30 ? 00:00:01 /usr/bin/python2 /usr/bin/nova-api

[Sean Dague (sdague)]

We really can't move forward without a paste.ini, I think this has to do with CORS support, but the current bug does not have enough information to move forward.

[Michael (krotscheck)]

This has been fixed as of the oslo_middleware 3.0.0 release, and is already in nova's requirements.