Authorization Failed: Unable to communicate with identity service: Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/eventlet/wsgi.py", line 336, in handle_one_response
    result = self.application(self.environ, start_response)
  File "/usr/lib/python2.7/dist-packages/paste/urlmap.py", line 203, in __call__
    return app(environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 147, in __call__
    resp = self.call_func(req, *args, **self.kwargs)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 210, in call_func
    return self.func(req, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/keystone/common/wsgi.py", line 284, in __call__
    response = request.get_response(self.application)
  File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1086, in get_response
    application, catch_exc_info=False)
  File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1055, in call_application
    app_iter = application(self.environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 147, in __call__
    resp = self.call_func(req, *args, **self.kwargs)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 210, in call_func
    return self.func(req, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/keystone/common/wsgi.py", line 284, in __call__
    response = request.get_response(self.application)
  File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1086, in get_response
    application, catch_exc_info=False)
  File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1055, in call_application
    app_iter = application(self.environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 147, in __call__
    resp = self.call_func(req, *args, **self.kwargs)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 210, in call_func
    return self.func(req, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/keystone/common/wsgi.py", line 284, in __call__
    response = request.get_response(self.application)
  File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1086, in get_response
    application, catch_exc_info=False)
  File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1055, in call_application
    app_iter = application(self.environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 147, in __call__
    resp = self.call_func(req, *args, **self.kwargs)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 210, in call_func
    return self.func(req, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/keystone/common/wsgi.py", line 284, in __call__
    response = request.get_response(self.application)
  File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1086, in get_response
    application, catch_exc_info=False)
  File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1055, in call_application
    app_iter = application(self.environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 147, in __call__
    resp = self.call_func(req, *args, **self.kwargs)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 210, in call_func
    return self.func(req, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/keystone/common/wsgi.py", line 307, in __call__
    resp = req.get_response(self.application)
  File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1086, in get_response
    application, catch_exc_info=False)
  File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1055, in call_application
    app_iter = application(self.environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 159, in __call__
    return resp(environ, start_response)
  File "/usr/lib/python2.7/dist-packages/routes/middleware.py", line 131, in __call__
    response = self.app(environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 159, in __call__
    return resp(environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 159, in __call__
    return resp(environ, start_response)
  File "/usr/lib/python2.7/dist-packages/routes/middleware.py", line 131, in __call__
    response = self.app(environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 159, in __call__
    return resp(environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 159, in __call__
    return resp(environ, start_response)
  File "/usr/lib/python2.7/dist-packages/routes/middleware.py", line 131, in __call__
    response = self.app(environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 159, in __call__
    return resp(environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 159, in __call__
    return resp(environ, start_response)
  File "/usr/lib/python2.7/dist-packages/routes/middleware.py", line 131, in __call__
    response = self.app(environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 159, in __call__
    return resp(environ, start_response)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 147, in __call__
    resp = self.call_func(req, *args, **self.kwargs)
  File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 210, in call_func
    return self.func(req, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/keystone/common/wsgi.py", line 181, in __call__
    result = method(context, **params)
  File "/usr/lib/python2.7/dist-packages/keystone/service.py", line 259, in authenticate
    context=context, user_name=username)
  File "/usr/lib/python2.7/dist-packages/keystone/common/manager.py", line 34, in _wrapper
    return f(*args, **kw)
  File "/usr/lib/python2.7/dist-packages/keystone/identity/backends/sql.py", line 186, in get_user_by_name
    return _filter_user(self._get_user_by_name(user_name))
  File "/usr/lib/python2.7/dist-packages/keystone/identity/backends/sql.py", line 177, in _get_user_by_name
    user_ref = session.query(User).filter_by(name=user_name).first()
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 1988, in first
    ret = list(self[0:1])
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 1882, in __getitem__
    return list(res)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 2057, in __iter__
    return self._execute_and_instances(context)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 2072, in _execute_and_instances
    result = conn.execute(querycontext.statement, self._params)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1405, in execute
    params)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1538, in _execute_clauseelement
    compiled_sql, distilled_params
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1646, in _execute_context
    context)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1639, in _execute_context
    context)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/default.py", line 330, in do_execute
    cursor.execute(statement, parameters)
  File "/usr/lib/python2.7/dist-packages/MySQLdb/cursors.py", line 174, in execute
    self.errorhandler(self, exc, value)
  File "/usr/lib/python2.7/dist-packages/MySQLdb/connections.py", line 36, in defaulterrorhandler
    raise errorclass, errorvalue
OperationalError: (OperationalError) (2006, 'MySQL server has gone away') 'SELECT user.id AS user_id, user.name AS user_name, user.extra AS user_extra \nFROM user \nWHERE user.name = %s \n LIMIT %s' ('admin', 1)
. (HTTP 500)