openstack/oslo.messaging
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a66677da50
oslo.messaging/tools/simulator.py
Yulia Portnova c10ee15fe0 Log format change in simulator.py 
Change-Id: I046717f9ea7f203f7e5837c7b62a6a7d7cc7bb4d
2016-02-18 13:43:38 +02:00

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# 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 collections
import datetime
import itertools
import logging
import os
import random
import six
import string
import sys
import threading
import time
import yaml
from scipy.stats import rv_discrete
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()
RANDOM_VARIABLE = None
CURRENT_PID = None
RPC_CLIENTS = []
MESSAGES = []
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"""
def init_random_generator():
data = []
with open('./messages_length.yaml') as m_file:
content = yaml.safe_load(m_file)
data += [int(n) for n in content[
'test_data']['string_lengths'].split(', ')]
ranges = collections.defaultdict(int)
for msg_length in data:
range_start = (msg_length / 500) * 500 + 1
ranges[range_start] += 1
ranges_start = sorted(ranges.keys())
total_count = len(data)
ranges_dist = []
for r in ranges_start:
r_dist = float(ranges[r]) / total_count
ranges_dist.append(r_dist)
random_var = rv_discrete(values=(ranges_start, ranges_dist))
return random_var
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 Monitor(object):
def __init__(self, show_stats=False, *args, **kwargs):
self._count = self._prev_count = 0
self.show_stats = show_stats
if self.show_stats:
self._monitor()
def _monitor(self):
threading.Timer(1.0, self._monitor).start()
LOG.debug("%d msg was received per second",
(self._count - self._prev_count))
self._prev_count = self._count
def info(self, *args, **kwargs):
self._count += 1
class NotifyEndpoint(Monitor):
def __init__(self, *args, **kwargs):
super(NotifyEndpoint, self).__init__(*args, **kwargs)
self.cache = []
def info(self, ctxt, publisher_id, event_type, payload, metadata):
super(NotifyEndpoint, self).info(ctxt, publisher_id, event_type,
payload, metadata)
LOG.debug('msg rcv')
LOG.debug("%s %s %s %s", ctxt, publisher_id, event_type, payload)
if not self.show_stats and payload not in self.cache:
LOG.debug('requeue msg')
self.cache.append(payload)
for i in range(15):
eventlet.sleep(1)
return messaging.NotificationResult.REQUEUE
else:
LOG.debug('ack msg')
return messaging.NotificationResult.HANDLED
def notify_server(transport, show_stats):
endpoints = [NotifyEndpoint(show_stats)]
target = messaging.Target(topic='n-t1')
server = notify.get_notification_listener(transport, [target],
endpoints, executor='eventlet')
server.start()
server.wait()
class BatchNotifyEndpoint(Monitor):
def __init__(self, *args, **kwargs):
super(BatchNotifyEndpoint, self).__init__(*args, **kwargs)
self.cache = []
def info(self, messages):
super(BatchNotifyEndpoint, self).info(messages)
self._count += len(messages) - 1
LOG.debug('msg rcv')
LOG.debug("%s", messages)
if not self.show_stats and messages not in self.cache:
LOG.debug('requeue msg')
self.cache.append(messages)
for i in range(15):
eventlet.sleep(1)
return messaging.NotificationResult.REQUEUE
else:
LOG.debug('ack msg')
return messaging.NotificationResult.HANDLED
def batch_notify_server(transport, show_stats):
endpoints = [BatchNotifyEndpoint(show_stats)]
target = messaging.Target(topic='n-t1')
server = notify.get_batch_notification_listener(
transport, [target],
endpoints, executor='eventlet',
batch_size=1000, batch_time=5)
server.start()
server.wait()
class RpcEndpoint(Monitor):
def __init__(self, wait_before_answer, show_stats):
self.count = None
self.wait_before_answer = wait_before_answer
self.messages_received = 0
def info(self, ctxt, message):
self.messages_received += 1
i = int(message.split(' ')[-1])
if self.count is None:
self.count = i
elif i == 0:
self.count = 0
else:
self.count += 1
LOG.debug("######## RCV: %s/%s", self.count, message)
if self.wait_before_answer > 0:
time.sleep(self.wait_before_answer)
return "OK: %s" % message
class RPCClient(object):
def __init__(self, transport, target, timeout, method, wait_after_msg):
self.client = rpc.RPCClient(transport, target)
self.client = self.client.prepare(timeout=timeout)
self.method = method
self.bytes = 0
self.msg_sent = 0
self.messages_count = len(MESSAGES)
# Start sending the messages from a random position to avoid
# memory re-usage and generate more realistic load on the library
# and a message transport
self.position = random.randint(0, self.messages_count - 1)
self.wait_after_msg = wait_after_msg
def send_msg(self):
msg = MESSAGES[self.position]
self.method(self.client, msg)
self.bytes += len(msg)
self.msg_sent += 1
self.position = (self.position + 1) % self.messages_count
if self.wait_after_msg > 0:
time.sleep(self.wait_after_msg)
def init_msg(messages_count):
# Limit the messages amount. Clients will reiterate the array again
# if an amount of messages to be sent is bigger than 1000
if messages_count > 1000:
messages_count = 1000
LOG.info("Preparing %d messages", messages_count)
ranges = RANDOM_VARIABLE.rvs(size=messages_count)
i = 0
for range_start in ranges:
length = random.randint(range_start, range_start + 497)
msg = ''.join(random.choice(string.lowercase) for x in range(length)) \
+ ' ' + str(i)
MESSAGES.append(msg)
i += 1
LOG.info("Messages has been prepared")
def rpc_server(transport, target, wait_before_answer, executor, show_stats,
duration):
endpoints = [RpcEndpoint(wait_before_answer, show_stats)]
server = rpc.get_rpc_server(transport, target, endpoints,
executor=executor)
LOG.debug("starting RPC server for target %s", target)
server.start()
if duration:
start_t = time.time()
while time.time() - start_t < duration:
time.sleep(1)
server.stop()
server.wait()
LOG.info("Received total messages: %d",
server.dispatcher.endpoints[0].messages_received)
return
server.wait()
def spawn_rpc_clients(threads, transport, targets,
*args, **kwargs):
p = eventlet.GreenPool(size=threads)
targets = itertools.cycle(targets)
for i in range(0, threads):
target = targets.next()
LOG.debug("starting RPC client for target %s", target)
p.spawn_n(send_msg, i, transport, target, *args, **kwargs)
p.waitall()
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(c_id, transport, target, wait_after_msg, timeout, is_cast,
messages_count, duration):
rpc_method = _rpc_cast if is_cast else _rpc_call
client = RPCClient(transport, target, timeout, rpc_method, wait_after_msg)
RPC_CLIENTS.append(client)
if duration:
start_time = time.time()
while time.time() - start_time < duration:
client.send_msg()
else:
LOG.debug("Sending %d messages using client %d", messages_count, c_id)
for _ in six.moves.range(0, messages_count):
client.send_msg()
LOG.debug("Client %d has sent %d messages", c_id, messages_count)
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.debug("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.debug("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.debug("send msg")
LOG.debug(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.INFO
logging.basicConfig(
stream=sys.stdout, level=log_level,
format="%(asctime)-15s %(levelname)s %(name)s %(message)s")
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")
parser.add_argument('-tp', '--topic', dest='topic',
default="profiler_topic",
help="Topics to publish/receive messages to/from.")
parser.add_argument('-s', '--server', dest='server',
default="profiler_server",
help="Servers to publish/receive messages to/from.")
parser.add_argument('-tg', '--targets', dest='targets', nargs="+",
default=["profiler_topic.profiler_server"],
help="Targets to publish/receive messages to/from.")
parser.add_argument('-l', dest='duration', type=int,
help='send messages for certain time')
parser.add_argument('--config-file', dest='config_file', type=str,
help="Oslo messaging config file")
subparsers = parser.add_subparsers(dest='mode',
help='notify/rpc server/client mode')
server = subparsers.add_parser('notify-server')
server.add_argument('--show-stats', dest='show_stats',
type=bool, default=True)
server = subparsers.add_parser('batch-notify-server')
server.add_argument('--show-stats', dest='show_stats',
type=bool, default=True)
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('--timeout', 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('--timeout', 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')
client.add_argument('--is-fanout', dest='is_fanout', type=bool,
default=False, help='fanout=True for CAST messages')
args = parser.parse_args()
_setup_logging(is_debug=args.debug)
if args.config_file:
cfg.CONF(["--config-file", args.config_file])
if args.mode in ['rpc-server', 'rpc-client']:
transport = messaging.get_transport(cfg.CONF, url=args.url)
else:
transport = messaging.get_notification_transport(cfg.CONF,
url=args.url)
# oslo.config defaults
cfg.CONF.heartbeat_interval = 5
cfg.CONF.prog = os.path.basename(__file__)
cfg.CONF.project = 'oslo.messaging'
if args.mode == 'rpc-server':
target = messaging.Target(topic=args.topic, server=args.server)
if args.url.startswith('zmq'):
cfg.CONF.rpc_zmq_matchmaker = "redis"
rpc_server(transport, target, args.wait_before_answer, args.executor,
args.show_stats, args.duration)
elif args.mode == 'notify-server':
notify_server(transport, args.show_stats)
elif args.mode == 'batch-notify-server':
batch_notify_server(transport, args.show_stats)
elif args.mode == 'notify-client':
threads_spawner(args.threads, notifier, transport, args.messages,
args.wait_after_msg, args.timeout)
elif args.mode == 'rpc-client':
init_msg(args.messages)
targets = [target.partition('.')[::2] for target in args.targets]
start = datetime.datetime.now()
targets = [messaging.Target(
topic=topic, server=server_name, fanout=args.is_fanout) for
topic, server_name in targets]
spawn_rpc_clients(args.threads, transport, targets,
args.wait_after_msg, args.timeout, args.is_cast,
args.messages, args.duration)
time_elapsed = (datetime.datetime.now() - start).total_seconds()
msg_count = 0
total_bytes = 0
for client in RPC_CLIENTS:
msg_count += client.msg_sent
total_bytes += client.bytes
LOG.info('%d messages were sent for %d seconds. '
'Bandwidth was %d msg/sec', msg_count, time_elapsed,
(msg_count / time_elapsed))
log_msg = '%s bytes were sent for %d seconds. Bandwidth is %d b/s' % (
total_bytes, time_elapsed, (total_bytes / time_elapsed))
LOG.info(log_msg)
with open('./oslo_res_%s.txt' % args.server, 'a+') as f:
f.write(log_msg + '\n')
LOG.info("calls finished, wait %d seconds", args.exit_wait)
time.sleep(args.exit_wait)
if __name__ == '__main__':
RANDOM_VARIABLE = init_random_generator()
CURRENT_PID = os.getpid()
main()
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