# Licensed under the Apache License, Version 2.0 (the "License"); you may # not use this file except in compliance with the License. You may obtain # a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the # License for the specific language governing permissions and limitations # under the License. import eventlet eventlet.monkey_patch() import argparse import datetime import logging import sys import threading import time from oslo_config import cfg import oslo_messaging as messaging from oslo_messaging import notify # noqa from oslo_messaging import rpc # noqa LOG = logging.getLogger() USAGE = """ Usage: ./simulator.py [-h] [--url URL] [-d DEBUG]\ {notify-server,notify-client,rpc-server,rpc-client} ... Usage example: python tools/simulator.py\ --url rabbit://stackrabbit:secretrabbit@localhost/ rpc-server python tools/simulator.py\ --url rabbit://stackrabbit:secretrabbit@localhost/ rpc-client\ --exit-wait 15000 -p 64 -m 64""" class LoggingNoParsingFilter(logging.Filter): def filter(self, record): msg = record.getMessage() for i in ['received {', 'MSG_ID is ']: if i in msg: return False return True class NotifyEndpoint(object): def __init__(self): self.cache = [] def info(self, ctxt, publisher_id, event_type, payload, metadata): LOG.info('msg rcv') LOG.info("%s %s %s %s" % (ctxt, publisher_id, event_type, payload)) if payload not in self.cache: LOG.info('requeue msg') self.cache.append(payload) for i in range(15): eventlet.sleep(1) return messaging.NotificationResult.REQUEUE else: LOG.info('ack msg') return messaging.NotificationResult.HANDLED def notify_server(transport): endpoints = [NotifyEndpoint()] target = messaging.Target(topic='n-t1') server = notify.get_notification_listener(transport, [target], endpoints, executor='eventlet') server.start() server.wait() class RpcEndpoint(object): def __init__(self, wait_before_answer): self.count = None self.wait_before_answer = wait_before_answer def info(self, ctxt, message): i = int(message.split(' ')[-1]) if self.count is None: self.count = i elif i == 0: self.count = 0 else: self.count += 1 LOG.info("######## RCV: %s/%s" % (self.count, message)) if self.wait_before_answer > 0: time.sleep(self.wait_before_answer) return "OK: %s" % message class RpcEndpointMonitor(RpcEndpoint): def __init__(self, *args, **kwargs): super(RpcEndpointMonitor, self).__init__(*args, **kwargs) self._count = self._prev_count = 0 self._monitor() def _monitor(self): threading.Timer(1.0, self._monitor).start() print ("%d msg was received per second" % (self._count - self._prev_count)) self._prev_count = self._count def info(self, *args, **kwargs): self._count += 1 super(RpcEndpointMonitor, self).info(*args, **kwargs) def rpc_server(transport, target, wait_before_answer, executor, show_stats): endpoint_cls = RpcEndpointMonitor if show_stats else RpcEndpoint endpoints = [endpoint_cls(wait_before_answer)] server = rpc.get_rpc_server(transport, target, endpoints, executor=executor) server.start() server.wait() def threads_spawner(threads, method, *args, **kwargs): p = eventlet.GreenPool(size=threads) for i in range(0, threads): p.spawn_n(method, i, *args, **kwargs) p.waitall() def send_msg(_id, transport, target, messages, wait_after_msg, timeout, is_cast): client = rpc.RPCClient(transport, target) client = client.prepare(timeout=timeout) rpc_method = _rpc_cast if is_cast else _rpc_call for i in range(0, messages): msg = "test message %d" % i LOG.info("SEND: %s" % msg) rpc_method(client, msg) if wait_after_msg > 0: time.sleep(wait_after_msg) def _rpc_call(client, msg): try: res = client.call({}, 'info', message=msg) except Exception as e: LOG.exception('Error %s on CALL for message %s' % (str(e), msg)) else: LOG.info("SENT: %s, RCV: %s" % (msg, res)) def _rpc_cast(client, msg): try: client.cast({}, 'info', message=msg) except Exception as e: LOG.exception('Error %s on CAST for message %s' % (str(e), msg)) else: LOG.info("SENT: %s" % msg) def notifier(_id, transport, messages, wait_after_msg, timeout): n1 = notify.Notifier(transport, topic="n-t1").prepare( publisher_id='publisher-%d' % _id) msg = 0 for i in range(0, messages): msg = 1 + msg ctxt = {} payload = dict(msg=msg, vm='test', otherdata='ahah') LOG.info("send msg") LOG.info(payload) n1.info(ctxt, 'compute.start1', payload) if wait_after_msg > 0: time.sleep(wait_after_msg) def _setup_logging(is_debug): log_level = logging.DEBUG if is_debug else logging.WARN logging.basicConfig(stream=sys.stdout, level=log_level) logging.getLogger().handlers[0].addFilter(LoggingNoParsingFilter()) for i in ['kombu', 'amqp', 'stevedore', 'qpid.messaging' 'oslo.messaging._drivers.amqp', ]: logging.getLogger(i).setLevel(logging.WARN) def main(): parser = argparse.ArgumentParser( description='Tools to play with oslo.messaging\'s RPC', usage=USAGE, ) parser.add_argument('--url', dest='url', default='rabbit://guest:password@localhost/', help="oslo.messaging transport url") parser.add_argument('-d', '--debug', dest='debug', type=bool, default=False, help="Turn on DEBUG logging level instead of WARN") subparsers = parser.add_subparsers(dest='mode', help='notify/rpc server/client mode') server = subparsers.add_parser('notify-server') client = subparsers.add_parser('notify-client') client.add_argument('-p', dest='threads', type=int, default=1, help='number of client threads') client.add_argument('-m', dest='messages', type=int, default=1, help='number of call per threads') client.add_argument('-w', dest='wait_after_msg', type=int, default=-1, help='sleep time between two messages') client.add_argument('-t', dest='timeout', type=int, default=3, help='client timeout') server = subparsers.add_parser('rpc-server') server.add_argument('-w', dest='wait_before_answer', type=int, default=-1) server.add_argument('--show-stats', dest='show_stats', type=bool, default=True) server.add_argument('-e', '--executor', dest='executor', type=str, default='eventlet', help='name of a message executor') client = subparsers.add_parser('rpc-client') client.add_argument('-p', dest='threads', type=int, default=1, help='number of client threads') client.add_argument('-m', dest='messages', type=int, default=1, help='number of call per threads') client.add_argument('-w', dest='wait_after_msg', type=int, default=-1, help='sleep time between two messages') client.add_argument('-t', dest='timeout', type=int, default=3, help='client timeout') client.add_argument('--exit-wait', dest='exit_wait', type=int, default=0, help='Keep connections open N seconds after calls ' 'have been done') client.add_argument('--is-cast', dest='is_cast', type=bool, default=False, help='Use `call` or `cast` RPC methods') args = parser.parse_args() _setup_logging(is_debug=args.debug) # oslo.config defaults cfg.CONF.heartbeat_interval = 5 cfg.CONF.notification_topics = "notif" cfg.CONF.notification_driver = "messaging" transport = messaging.get_transport(cfg.CONF, url=args.url) target = messaging.Target(topic='profiler_topic', server='profiler_server') if args.mode == 'rpc-server': if args.url.startswith('zmq'): cfg.CONF.rpc_zmq_matchmaker = "redis" transport._driver.matchmaker._redis.flushdb() rpc_server(transport, target, args.wait_before_answer, args.executor, args.show_stats) elif args.mode == 'notify-server': notify_server(transport) elif args.mode == 'notify-client': threads_spawner(args.threads, notifier, transport, args.messages, args.wait_after_msg, args.timeout) elif args.mode == 'rpc-client': start = datetime.datetime.now() threads_spawner(args.threads, send_msg, transport, target, args.messages, args.wait_after_msg, args.timeout, args.is_cast) time_ellapsed = (datetime.datetime.now() - start).total_seconds() msg_count = args.messages * args.threads print ('%d messages was sent for %s seconds. Bandwight is %s msg/sec' % (msg_count, time_ellapsed, (msg_count / time_ellapsed))) LOG.info("calls finished, wait %d seconds" % args.exit_wait) time.sleep(args.exit_wait) if __name__ == '__main__': main()