2011-09-10 02:09:28,715 ERROR nova [-] in looping call
(nova): TRACE: Traceback (most recent call last):
(nova): TRACE:   File "/usr/lib/pymodules/python2.7/nova/utils.py", line 488, in _inner
(nova): TRACE:     self.f(*self.args, **self.kw)
(nova): TRACE:   File "/usr/lib/pymodules/python2.7/nova/virt/xenapi_conn.py", line 408, in _poll_task
(nova): TRACE:     name = self._session.xenapi.task.get_name_label(task)
(nova): TRACE:   File "/usr/local/lib/python2.7/dist-packages/XenAPI.py", line 229, in __call__
(nova): TRACE:     return self.__send(self.__name, args)
(nova): TRACE:   File "/usr/local/lib/python2.7/dist-packages/XenAPI.py", line 133, in xenapi_request
(nova): TRACE:     result = _parse_result(getattr(self, methodname)(*full_params))
(nova): TRACE:   File "/usr/lib/python2.7/xmlrpclib.py", line 1224, in __call__
(nova): TRACE:     return self.__send(self.__name, args)
(nova): TRACE:   File "/usr/lib/python2.7/xmlrpclib.py", line 1575, in __request
(nova): TRACE:     verbose=self.__verbose
(nova): TRACE:   File "/usr/lib/python2.7/xmlrpclib.py", line 1264, in request
(nova): TRACE:     return self.single_request(host, handler, request_body, verbose)
(nova): TRACE:   File "/usr/lib/python2.7/xmlrpclib.py", line 1289, in single_request
(nova): TRACE:     self.send_request(h, handler, request_body)
(nova): TRACE:   File "/usr/lib/python2.7/xmlrpclib.py", line 1391, in send_request
(nova): TRACE:     connection.putrequest("POST", handler, skip_accept_encoding=True)
(nova): TRACE:   File "/usr/lib/python2.7/httplib.py", line 853, in putrequest
(nova): TRACE:     raise CannotSendRequest()
(nova): TRACE: CannotSendRequest
(nova): TRACE: