systemctl start neutron-server.service 报错了

systemctl start neutron-server.service
Job for neutron-server.service failed because the control process exited with error code. See "systemctl status neutron-server.service" and "journalctl -xe" for details.

log信息如下：

[mw_shl_code=bash,true]

2016-01-08 17:32:42.559 4691 INFO neutron.common.config [-] Logging enabled!
2016-01-08 17:32:42.560 4691 INFO neutron.common.config [-] /usr/bin/neutron-server version 7.0.2
2016-01-08 17:32:42.561 4691 INFO neutron.common.config [-] Logging enabled!
2016-01-08 17:32:42.562 4691 INFO neutron.common.config [-] /usr/bin/neutron-server version 7.0.2
2016-01-08 17:32:42.562 4691 INFO neutron.common.config [-] Config paste file: /usr/share/neutron/api-paste.ini
2016-01-08 17:32:42.571 4691 INFO neutron.manager [-] Loading core plugin: m12
2016-01-08 17:32:42.572 4691 ERROR neutron.service [-] Unrecoverable error: please check log for details.
2016-01-08 17:32:42.572 4691 ERROR neutron.service Traceback (most recent call last):
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/neutron/service.py", line 103, in serve_wsgi
2016-01-08 17:32:42.572 4691 ERROR neutron.service    service.start()
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/neutron/service.py", line 76, in start
2016-01-08 17:32:42.572 4691 ERROR neutron.service    self.wsgi_app = _run_wsgi(self.app_name)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/neutron/service.py", line 208, in _run_wsgi
2016-01-08 17:32:42.572 4691 ERROR neutron.service    app = config.load_paste_app(app_name)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/neutron/common/config.py", line 246, in load_paste_app
2016-01-08 17:32:42.572 4691 ERROR neutron.service    app = deploy.loadapp("config:%s" % config_path, name=app_name)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 247, in loadapp
2016-01-08 17:32:42.572 4691 ERROR neutron.service    return loadobj(APP, uri, name=name, **kw)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 272, in loadobj
2016-01-08 17:32:42.572 4691 ERROR neutron.service    return context.create()
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 710, in create
2016-01-08 17:32:42.572 4691 ERROR neutron.service    return self.object_type.invoke(self)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 144, in invoke
2016-01-08 17:32:42.572 4691 ERROR neutron.service    **context.local_conf)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/paste/deploy/util.py", line 56, in fix_call
2016-01-08 17:32:42.572 4691 ERROR neutron.service    val = callable(*args, **kw)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/paste/urlmap.py", line 25, in urlmap_factory
2016-01-08 17:32:42.572 4691 ERROR neutron.service    app = loader.get_app(app_name, global_conf=global_conf)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 350, in get_app
2016-01-08 17:32:42.572 4691 ERROR neutron.service    name=name, global_conf=global_conf).create()
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 710, in create
2016-01-08 17:32:42.572 4691 ERROR neutron.service    return self.object_type.invoke(self)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 144, in invoke
2016-01-08 17:32:42.572 4691 ERROR neutron.service    **context.local_conf)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/paste/deploy/util.py", line 56, in fix_call
2016-01-08 17:32:42.572 4691 ERROR neutron.service    val = callable(*args, **kw)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/neutron/auth.py", line 71, in pipeline_factory
2016-01-08 17:32:42.572 4691 ERROR neutron.service    app = loader.get_app(pipeline[-1])
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 350, in get_app
2016-01-08 17:32:42.572 4691 ERROR neutron.service    name=name, global_conf=global_conf).create()
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 710, in create
2016-01-08 17:32:42.572 4691 ERROR neutron.service    return self.object_type.invoke(self)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 146, in invoke
2016-01-08 17:32:42.572 4691 ERROR neutron.service    return fix_call(context.object, context.global_conf, **context.local_conf)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/paste/deploy/util.py", line 56, in fix_call
2016-01-08 17:32:42.572 4691 ERROR neutron.service    val = callable(*args, **kw)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/neutron/api/v2/router.py", line 73, in factory
2016-01-08 17:32:42.572 4691 ERROR neutron.service    return cls(**local_config)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/neutron/api/v2/router.py", line 77, in __init__
2016-01-08 17:32:42.572 4691 ERROR neutron.service    plugin = manager.NeutronManager.get_plugin()
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/neutron/manager.py", line 248, in get_plugin
2016-01-08 17:32:42.572 4691 ERROR neutron.service    return weakref.proxy(cls.get_instance().plugin)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/neutron/manager.py", line 242, in get_instance
2016-01-08 17:32:42.572 4691 ERROR neutron.service    cls._create_instance()
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/oslo_concurrency/lockutils.py", line 254, in inner
2016-01-08 17:32:42.572 4691 ERROR neutron.service    return f(*args, **kwargs)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/neutron/manager.py", line 228, in _create_instance
2016-01-08 17:32:42.572 4691 ERROR neutron.service    cls._instance = cls()
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/neutron/manager.py", line 121, in __init__
2016-01-08 17:32:42.572 4691 ERROR neutron.service    plugin_provider)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/neutron/manager.py", line 160, in _get_plugin_instance
2016-01-08 17:32:42.572 4691 ERROR neutron.service    plugin_class = self.load_class_for_provider(namespace, plugin_provider)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/neutron/manager.py", line 150, in load_class_for_provider
2016-01-08 17:32:42.572 4691 ERROR neutron.service    plugin_class = importutils.import_class(plugin_provider)
2016-01-08 17:32:42.572 4691 ERROR neutron.service File "/usr/lib/python2.7/site-packages/oslo_utils/importutils.py", line 27, in import_class
2016-01-08 17:32:42.572 4691 ERROR neutron.service    __import__(mod_str)
2016-01-08 17:32:42.572 4691 ERROR neutron.service ValueError: Empty module name
2016-01-08 17:32:42.572 4691 ERROR neutron.service
2016-01-08 17:32:42.575 4691 CRITICAL neutron [-] ValueError: Empty module name
2016-01-08 17:32:42.575 4691 ERROR neutron Traceback (most recent call last):
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/bin/neutron-server", line 10, in <module>
2016-01-08 17:32:42.575 4691 ERROR neutron    sys.exit(main_wsgi_eventlet())
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/cmd/eventlet/server/__init__.py", line 19, in main_wsgi_eventlet
2016-01-08 17:32:42.575 4691 ERROR neutron    wsgi_eventlet.main()
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/server/wsgi_eventlet.py", line 50, in main
2016-01-08 17:32:42.575 4691 ERROR neutron    server.boot_server(_eventlet_wsgi_server)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/server/__init__.py", line 35, in boot_server
2016-01-08 17:32:42.575 4691 ERROR neutron    server_func()
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/server/wsgi_eventlet.py", line 27, in _eventlet_wsgi_server
2016-01-08 17:32:42.575 4691 ERROR neutron    neutron_api = service.serve_wsgi(service.NeutronApiService)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/service.py", line 106, in serve_wsgi
2016-01-08 17:32:42.575 4691 ERROR neutron    LOG.exception(_LE('Unrecoverable error: please check log '
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 195, in __exit__
2016-01-08 17:32:42.575 4691 ERROR neutron    six.reraise(self.type_, self.value, self.tb)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/service.py", line 103, in serve_wsgi
2016-01-08 17:32:42.575 4691 ERROR neutron    service.start()
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/service.py", line 76, in start
2016-01-08 17:32:42.575 4691 ERROR neutron    self.wsgi_app = _run_wsgi(self.app_name)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/service.py", line 208, in _run_wsgi
2016-01-08 17:32:42.575 4691 ERROR neutron    app = config.load_paste_app(app_name)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/common/config.py", line 246, in load_paste_app
2016-01-08 17:32:42.575 4691 ERROR neutron    app = deploy.loadapp("config:%s" % config_path, name=app_name)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 247, in loadapp
2016-01-08 17:32:42.575 4691 ERROR neutron    return loadobj(APP, uri, name=name, **kw)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 272, in loadobj
2016-01-08 17:32:42.575 4691 ERROR neutron    return context.create()
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 710, in create
2016-01-08 17:32:42.575 4691 ERROR neutron    return self.object_type.invoke(self)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 144, in invoke
2016-01-08 17:32:42.575 4691 ERROR neutron    **context.local_conf)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/paste/deploy/util.py", line 56, in fix_call
2016-01-08 17:32:42.575 4691 ERROR neutron    val = callable(*args, **kw)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/paste/urlmap.py", line 25, in urlmap_factory
2016-01-08 17:32:42.575 4691 ERROR neutron    app = loader.get_app(app_name, global_conf=global_conf)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 350, in get_app
2016-01-08 17:32:42.575 4691 ERROR neutron    name=name, global_conf=global_conf).create()
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 710, in create
2016-01-08 17:32:42.575 4691 ERROR neutron    return self.object_type.invoke(self)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 144, in invoke
2016-01-08 17:32:42.575 4691 ERROR neutron    **context.local_conf)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/paste/deploy/util.py", line 56, in fix_call
2016-01-08 17:32:42.575 4691 ERROR neutron    val = callable(*args, **kw)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/auth.py", line 71, in pipeline_factory
2016-01-08 17:32:42.575 4691 ERROR neutron    app = loader.get_app(pipeline[-1])
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 350, in get_app
2016-01-08 17:32:42.575 4691 ERROR neutron    name=name, global_conf=global_conf).create()
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 710, in create
2016-01-08 17:32:42.575 4691 ERROR neutron    return self.object_type.invoke(self)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 146, in invoke
2016-01-08 17:32:42.575 4691 ERROR neutron    return fix_call(context.object, context.global_conf, **context.local_conf)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/paste/deploy/util.py", line 56, in fix_call
2016-01-08 17:32:42.575 4691 ERROR neutron    val = callable(*args, **kw)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/api/v2/router.py", line 73, in factory
2016-01-08 17:32:42.575 4691 ERROR neutron    return cls(**local_config)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/api/v2/router.py", line 77, in __init__
2016-01-08 17:32:42.575 4691 ERROR neutron    plugin = manager.NeutronManager.get_plugin()
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/manager.py", line 248, in get_plugin
2016-01-08 17:32:42.575 4691 ERROR neutron    return weakref.proxy(cls.get_instance().plugin)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/manager.py", line 242, in get_instance
2016-01-08 17:32:42.575 4691 ERROR neutron    cls._create_instance()
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/oslo_concurrency/lockutils.py", line 254, in inner
2016-01-08 17:32:42.575 4691 ERROR neutron    return f(*args, **kwargs)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/manager.py", line 228, in _create_instance
2016-01-08 17:32:42.575 4691 ERROR neutron    cls._instance = cls()
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/manager.py", line 121, in __init__
2016-01-08 17:32:42.575 4691 ERROR neutron    plugin_provider)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/manager.py", line 160, in _get_plugin_instance
2016-01-08 17:32:42.575 4691 ERROR neutron    plugin_class = self.load_class_for_provider(namespace, plugin_provider)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/neutron/manager.py", line 150, in load_class_for_provider
2016-01-08 17:32:42.575 4691 ERROR neutron    plugin_class = importutils.import_class(plugin_provider)
2016-01-08 17:32:42.575 4691 ERROR neutron File "/usr/lib/python2.7/site-packages/oslo_utils/importutils.py", line 27, in import_class
2016-01-08 17:32:42.575 4691 ERROR neutron    __import__(mod_str)
2016-01-08 17:32:42.575 4691 ERROR neutron ValueError: Empty module name
2016-01-08 17:32:42.575 4691 ERROR neutron
[/mw_shl_code]