glance-registry returns error 500 when started as a service

[KaZeR]

I'm running glance-2013.1.2.

If i start glance-registry as a service, i am getting 2 processes (despite the workers=1, is that intended?):
oot 3027 1 6 15:37 ? 00:00:00 /usr/bin/python2.7 /usr/bin/glance-registry-python2.7 --config-file /etc/glance/glance-registry.conf
root 3034 3027 1 15:37 ? 00:00:00 /usr/bin/python2.7 /usr/bin/glance-registry-python2.7 --config-file /etc/glance/glance-registry.conf
r

 and calls to the API fail :

# glance image-list
Request returned failure status.
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/eventlet/wsgi.py", line 383, in handle_one_response
    result = self.application(self.environ, start_response)
  File "/usr/lib64/python2.7/site-packages/webob/dec.py", line 130, in __call__
    resp = self.call_func(req, *args, **self.kwargs)
  File "/usr/lib64/python2.7/site-packages/webob/dec.py", line 195, in call_func
    return self.func(req, *args, **kwargs)
  File "/usr/lib64/python2.7/site-packages/glance/common/wsgi.py", line 362, in __call__
    response = req.get_response(self.application)
  File "/usr/lib64/python2.7/site-packages/webob/request.py", line 1296, in send
    application, catch_exc_info=False)
  File "/usr/lib64/python2.7/site-packages/webob/request.py", line 1260, in call_application
    app_iter = application(self.environ, start_response)
  File "/usr/lib64/python2.7/site-packages/webob/dec.py", line 130, in __call__
    resp = self.call_func(req, *args, **self.kwargs)
  File "/usr/lib64/python2.7/site-packages/webob/dec.py", line 195, in call_func
    return self.func(req, *args, **kwargs)
  File "/usr/lib64/python2.7/site-packages/glance/common/wsgi.py", line 362, in __call__
    response = req.get_response(self.application)
  File "/usr/lib64/python2.7/site-packages/webob/request.py", line 1296, in send
    application, catch_exc_info=False)
  File "/usr/lib64/python2.7/site-packages/webob/request.py", line 1260, in call_application
    app_iter = application(self.environ, start_response)
  File "/usr/lib64/python2.7/site-packages/paste/urlmap.py", line 203, in __call__
    return app(environ, start_response)
  File "/usr/lib64/python2.7/site-packages/webob/dec.py", line 144, in __call__
    return resp(environ, start_response)
  File "/usr/lib64/python2.7/site-packages/routes/middleware.py", line 131, in __call__
    response = self.app(environ, start_response)
  File "/usr/lib64/python2.7/site-packages/webob/dec.py", line 144, in __call__
    return resp(environ, start_response)
  File "/usr/lib64/python2.7/site-packages/webob/dec.py", line 130, in __call__
    resp = self.call_func(req, *args, **self.kwargs)
  File "/usr/lib64/python2.7/site-packages/webob/dec.py", line 195, in call_func
    return self.func(req, *args, **kwargs)
  File "/usr/lib64/python2.7/site-packages/glance/common/wsgi.py", line 569, in __call__
    request, **action_args)
  File "/usr/lib64/python2.7/site-packages/glance/common/wsgi.py", line 586, in dispatch
    return method(*args, **kwargs)
  File "/usr/lib64/python2.7/site-packages/glance/api/v1/images.py", line 204, in detail
    images = registry.get_images_detail(req.context, **params)
  File "/usr/lib64/python2.7/site-packages/glance/registry/__init__.py", line 155, in get_images_detail
    return c.get_images_detailed(**kwargs)
  File "/usr/lib64/python2.7/site-packages/glance/registry/client.py", line 115, in get_images_detailed
    res = self.do_request("GET", "/images/detail", params=params)
  File "/usr/lib64/python2.7/site-packages/glance/registry/client.py", line 90, in do_request
    **kwargs)
  File "/usr/lib64/python2.7/site-packages/glance/common/client.py", line 62, in wrapped
    return func(self, *args, **kwargs)
  File "/usr/lib64/python2.7/site-packages/glance/common/client.py", line 376, in do_request
    headers=headers)
  File "/usr/lib64/python2.7/site-packages/glance/common/client.py", line 79, in wrapped
    return func(self, method, url, body, headers)
  File "/usr/lib64/python2.7/site-packages/glance/common/client.py", line 514, in _do_request
    raise exception.ServerError()
ServerError: The request returned 500 Internal Server Error.
 (HTTP 500)

If i start the process manually ( using /usr/bin/python2.7 /usr/bin/glance-registry-python2.7 --config-file /etc/glance/glance-registry.conf found earlier using ps) then it works ( i was able to add an image and list it)

[KaZeR (kazer)]

Extra detail : i'm running glance on Gentoo.