+ :param rqueue: result queue
+ :type rqueue: Queue.Queue
+ :param prefix_id: identifier for prefix, should imply cluster member index
+ :type prefix_id: str
+ :param url: rpc url
+ :type url: str
+ :param data: http request content
+ :type data: str
+ :param http_timeout: http response timeout
+ :type http_timeout: int
+ """
+ logger.info('rpc invoked with details: {}'.format(data))
+ try:
+ resp = requests.post(url=url, headers={'Content-Type': 'application/xml'},
+ data=data, auth=('admin', 'admin'), timeout=http_timeout)
+ except Exception as exc:
+ resp = exc
+ logger.debug(exc)
+ rqueue.put((time.ctime(), prefix_id, resp))
+
+
+def _initiate_rpcs(host_list, index_list, url_templ, data_templ, subst_dict):
+ """Initiate rpc on given hosts.
+
+ :param host_list: IP addresses of odl nodes
+ :type host_list: list[str]
+ :param index_list: node indices which correspond to the ip addresses
+ :type index_list: list[int]
+ :param url_templ: url template
+ :type url_templ: string.Template object
+ :param data_templ: http request data
+ :type data_templ: string.Template object
+ :param subst_dict: dictionary with key value pairs to be used with template
+ :type subst_dict: dict
+ """
+ resqueue = _globals.pop('result_queue', Queue.Queue())
+ lthreads = _globals.pop('threads', [])
+ for i, host in enumerate(host_list):
+ url = url_templ.substitute({'HOST': host})
+ timeout = int(subst_dict['DURATION']) + 3 * 125 + 10
+ prefix_id = subst_dict['ID_PREFIX'] + str(index_list[i])
+ subst_dict['ID'] = prefix_id
+ data = data_templ.substitute(subst_dict)
+ logger.info('url: {}, data: {}, timeout: {}'.format(url, data, timeout))
+ t = threading.Thread(target=_send_http_request_thread_impl,
+ args=(resqueue, prefix_id, url, data, timeout))
+ t.daemon = True
+ t.start()
+ lthreads.append(t)
+
+ _globals.update({'threads': lthreads, 'result_queue': resqueue})
+
+
+def start_write_transactions_on_nodes(host_list, index_list, id_prefix, duration, rate, chained_flag=False,
+ reset_globals=True):
+ """Invoke write-transactions rpc on given nodes.
+
+ :param host_list: IP addresses of odl nodes
+ :type host_list: list[str]
+ :param index_list: node indices which correspond to the ip addresses
+ :type index_list: list[int]