09d5669565
Right now simulator.py expects messages_length.yaml to be in the current directory and as a result, it is impossible to launch simulator while you are at the repository root. The change makes simulator to search for the file in the same directory as simulator itself is in. Change-Id: Ic2ca21d87e2d888432dc6204c7b4b995a06aecbd
676 lines
24 KiB
Python
Executable File
676 lines
24 KiB
Python
Executable File
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import eventlet
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eventlet.monkey_patch()
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import argparse
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import bisect
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import collections
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import functools
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import itertools
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import json
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import logging
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import os
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import random
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import six
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import string
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import sys
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import threading
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import time
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import yaml
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from oslo_config import cfg
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import oslo_messaging as messaging
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from oslo_messaging import notify # noqa
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from oslo_messaging import rpc # noqa
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from oslo_utils import timeutils
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LOG = logging.getLogger()
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RANDOM_GENERATOR = None
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CURRENT_PID = None
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CLIENTS = []
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MESSAGES = []
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USAGE = """ Usage: ./simulator.py [-h] [--url URL] [-d DEBUG]\
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{notify-server,notify-client,rpc-server,rpc-client} ...
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Usage example:
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python tools/simulator.py\
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--url rabbit://stackrabbit:secretrabbit@localhost/ rpc-server
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python tools/simulator.py\
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--url rabbit://stackrabbit:secretrabbit@localhost/ rpc-client\
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--exit-wait 15000 -p 64 -m 64"""
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MESSAGES_LIMIT = 1000
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DISTRIBUTION_BUCKET_SIZE = 500
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def init_random_generator():
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data = []
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file_dir = os.path.dirname(os.path.abspath(__file__))
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with open(os.path.join(file_dir, 'messages_length.yaml')) as m_file:
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content = yaml.safe_load(m_file)
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data += [int(n) for n in content[
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'test_data']['string_lengths'].split(', ')]
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ranges = collections.defaultdict(int)
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for msg_length in data:
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range_start = ((msg_length // DISTRIBUTION_BUCKET_SIZE) *
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DISTRIBUTION_BUCKET_SIZE + 1)
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ranges[range_start] += 1
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ranges_start = sorted(ranges.keys())
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total_count = len(data)
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accumulated_distribution = []
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running_total = 0
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for range_start in ranges_start:
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norm = float(ranges[range_start]) / total_count
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running_total += norm
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accumulated_distribution.append(running_total)
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def weighted_random_choice():
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r = random.random() * running_total
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start = ranges_start[bisect.bisect_right(accumulated_distribution, r)]
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return random.randrange(start, start + DISTRIBUTION_BUCKET_SIZE)
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return weighted_random_choice
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class LoggingNoParsingFilter(logging.Filter):
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def filter(self, record):
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msg = record.getMessage()
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for i in ['received {', 'MSG_ID is ']:
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if i in msg:
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return False
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return True
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Message = collections.namedtuple(
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'Message', ['seq', 'cargo', 'client_ts', 'server_ts', 'return_ts'])
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def make_message(seq, cargo, client_ts=0, server_ts=0, return_ts=0):
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return Message(seq, cargo, client_ts, server_ts, return_ts)
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def update_message(message, **kwargs):
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return Message(*message)._replace(**kwargs)
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class MessageStatsCollector(object):
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def __init__(self, label):
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self.label = label
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self.buffer = [] # buffer to store messages during report interval
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self.series = [] # stats for every report interval
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threading.Timer(1.0, self.monitor).start() # schedule in a second
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def monitor(self):
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threading.Timer(1.0, self.monitor).start()
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now = time.time()
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count = len(self.buffer)
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size = 0
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min_latency = sys.maxsize
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max_latency = 0
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sum_latencies = 0
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for i in range(count):
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p = self.buffer[i]
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size += len(p.cargo)
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latency = None
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if p.return_ts:
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latency = p.return_ts - p.client_ts # round-trip
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elif p.server_ts:
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latency = p.server_ts - p.client_ts # client -> server
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if latency:
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sum_latencies += latency
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min_latency = min(min_latency, latency)
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max_latency = max(max_latency, latency)
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del self.buffer[:count] # trim processed items
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seq = len(self.series)
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stats = dict(seq=seq, timestamp=now, count=count, size=size)
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msg = ('%-14s: seq: %-4d count: %-6d bytes: %-10d' %
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(self.label, seq, count, size))
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if sum_latencies:
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latency = sum_latencies / count
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stats.update(dict(latency=latency,
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min_latency=min_latency,
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max_latency=max_latency))
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msg += (' latency: %-9.3f min: %-9.3f max: %-9.3f' %
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(latency, min_latency, max_latency))
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self.series.append(stats)
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LOG.info(msg)
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def push(self, parsed_message):
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self.buffer.append(parsed_message)
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def get_series(self):
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return self.series
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@staticmethod
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def calc_stats(label, *collectors):
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count = 0
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size = 0
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min_latency = sys.maxsize
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max_latency = 0
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sum_latencies = 0
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start = sys.maxsize
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end = 0
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for point in itertools.chain(*(c.get_series() for c in collectors)):
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count += point['count']
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size += point['size']
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start = min(start, point['timestamp'])
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end = max(end, point['timestamp'])
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if 'latency' in point:
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sum_latencies += point['latency'] * point['count']
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min_latency = min(min_latency, point['min_latency'])
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max_latency = max(max_latency, point['max_latency'])
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# start is the timestamp of the earliest block, which inclides samples
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# for the prior second
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start -= 1
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duration = end - start if count else 0
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stats = dict(count=count, size=size, duration=duration, count_p_s=0,
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size_p_s=0)
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if duration:
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stats.update(dict(start=start, end=end,
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count_p_s=count / duration,
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size_p_s=size / duration))
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msg = ('%s: duration: %.2f count: %d (%.1f msg/sec) '
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'bytes: %d (%.0f bps)' %
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(label, duration, count, stats['count_p_s'],
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size, stats['size_p_s']))
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if sum_latencies:
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latency = sum_latencies / count
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stats.update(dict(latency=latency,
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min_latency=min_latency,
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max_latency=max_latency))
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msg += (' latency: %.3f min: %.3f max: %.3f' %
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(latency, min_latency, max_latency))
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LOG.info(msg)
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return stats
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class NotifyEndpoint(object):
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def __init__(self, wait_before_answer, requeue):
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self.wait_before_answer = wait_before_answer
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self.requeue = requeue
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self.received_messages = MessageStatsCollector('server')
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self.cache = set()
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def info(self, ctxt, publisher_id, event_type, payload, metadata):
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LOG.debug("%s %s %s %s", ctxt, publisher_id, event_type, payload)
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server_ts = time.time()
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message = update_message(payload, server_ts=server_ts)
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self.received_messages.push(message)
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if self.requeue and message.seq not in self.cache:
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self.cache.add(message.seq)
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if self.wait_before_answer > 0:
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time.sleep(self.wait_before_answer)
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return messaging.NotificationResult.REQUEUE
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return messaging.NotificationResult.HANDLED
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def notify_server(transport, topic, wait_before_answer, duration, requeue):
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endpoints = [NotifyEndpoint(wait_before_answer, requeue)]
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target = messaging.Target(topic=topic)
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server = notify.get_notification_listener(transport, [target],
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endpoints, executor='eventlet')
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run_server(server, duration=duration)
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return endpoints[0]
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class BatchNotifyEndpoint(object):
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def __init__(self, wait_before_answer, requeue):
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self.wait_before_answer = wait_before_answer
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self.requeue = requeue
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self.received_messages = MessageStatsCollector('server')
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self.cache = set()
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def info(self, batch):
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LOG.debug('msg rcv')
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LOG.debug("%s", batch)
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server_ts = time.time()
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for item in batch:
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message = update_message(item['payload'], server_ts=server_ts)
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self.received_messages.push(message)
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return messaging.NotificationResult.HANDLED
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def batch_notify_server(transport, topic, wait_before_answer, duration,
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requeue):
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endpoints = [BatchNotifyEndpoint(wait_before_answer, requeue)]
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target = messaging.Target(topic=topic)
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server = notify.get_batch_notification_listener(
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transport, [target],
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endpoints, executor='eventlet',
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batch_size=1000, batch_timeout=5)
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run_server(server, duration=duration)
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return endpoints[0]
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class RpcEndpoint(object):
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def __init__(self, wait_before_answer):
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self.wait_before_answer = wait_before_answer
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self.received_messages = MessageStatsCollector('server')
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def info(self, ctxt, message):
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server_ts = time.time()
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LOG.debug("######## RCV: %s", message)
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reply = update_message(message, server_ts=server_ts)
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self.received_messages.push(reply)
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if self.wait_before_answer > 0:
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time.sleep(self.wait_before_answer)
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return reply
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class Client(object):
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def __init__(self, client_id, client, method, has_result,
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wait_after_msg):
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self.client_id = client_id
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self.client = client
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self.method = method
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self.wait_after_msg = wait_after_msg
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self.seq = 0
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self.messages_count = len(MESSAGES)
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# Start sending the messages from a random position to avoid
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# memory re-usage and generate more realistic load on the library
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# and a message transport
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self.position = random.randint(0, self.messages_count - 1)
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self.sent_messages = MessageStatsCollector('client-%s' % client_id)
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self.errors = MessageStatsCollector('error-%s' % client_id)
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if has_result:
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self.round_trip_messages = MessageStatsCollector(
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'round-trip-%s' % client_id)
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def send_msg(self):
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msg = make_message(self.seq, MESSAGES[self.position], time.time())
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self.sent_messages.push(msg)
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res = None
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try:
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res = self.method(self.client, msg)
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except Exception:
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self.errors.push(msg)
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else:
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LOG.debug("SENT: %s", msg)
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if res:
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return_ts = time.time()
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res = update_message(res, return_ts=return_ts)
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self.round_trip_messages.push(res)
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self.seq += 1
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self.position = (self.position + 1) % self.messages_count
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if self.wait_after_msg > 0:
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time.sleep(self.wait_after_msg)
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class RPCClient(Client):
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def __init__(self, client_id, transport, target, timeout, is_cast,
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wait_after_msg):
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client = rpc.RPCClient(transport, target).prepare(timeout=timeout)
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method = _rpc_cast if is_cast else _rpc_call
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super(RPCClient, self).__init__(client_id, client, method,
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not is_cast, wait_after_msg)
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class NotifyClient(Client):
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def __init__(self, client_id, transport, topic, wait_after_msg):
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client = notify.Notifier(transport, driver='messaging', topic=topic)
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client = client.prepare(publisher_id='publisher-%d' % client_id)
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method = _notify
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super(NotifyClient, self).__init__(client_id, client, method,
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False, wait_after_msg)
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def generate_messages(messages_count):
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# Limit the messages amount. Clients will reiterate the array again
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# if an amount of messages to be sent is bigger than MESSAGES_LIMIT
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if messages_count > MESSAGES_LIMIT:
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messages_count = MESSAGES_LIMIT
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LOG.info("Generating %d random messages", messages_count)
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for i in range(messages_count):
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length = RANDOM_GENERATOR()
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msg = ''.join(random.choice(
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string.ascii_lowercase) for x in range(length))
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MESSAGES.append(msg)
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LOG.info("Messages has been prepared")
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def run_server(server, duration=None):
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try:
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server.start()
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if duration:
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with timeutils.StopWatch(duration) as stop_watch:
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while not stop_watch.expired():
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time.sleep(1)
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server.stop()
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server.wait()
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except KeyboardInterrupt: # caught SIGINT
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LOG.info('Caught SIGINT, terminating')
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time.sleep(1) # wait for stats collector to process the last second
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def rpc_server(transport, target, wait_before_answer, executor, duration):
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endpoints = [RpcEndpoint(wait_before_answer)]
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server = rpc.get_rpc_server(transport, target, endpoints,
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executor=executor)
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LOG.debug("starting RPC server for target %s", target)
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run_server(server, duration=duration)
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return server.dispatcher.endpoints[0]
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def spawn_rpc_clients(threads, transport, targets, wait_after_msg, timeout,
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is_cast, messages_count, duration):
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p = eventlet.GreenPool(size=threads)
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targets = itertools.cycle(targets)
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for i in range(0, threads):
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target = next(targets)
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LOG.debug("starting RPC client for target %s", target)
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client_builder = functools.partial(RPCClient, i, transport, target,
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timeout, is_cast, wait_after_msg)
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p.spawn_n(send_messages, i, client_builder, messages_count, duration)
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p.waitall()
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def spawn_notify_clients(threads, topic, transport, message_count,
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wait_after_msg, timeout, duration):
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p = eventlet.GreenPool(size=threads)
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for i in range(0, threads):
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client_builder = functools.partial(NotifyClient, i, transport, topic,
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wait_after_msg)
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p.spawn_n(send_messages, i, client_builder, message_count, duration)
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p.waitall()
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def send_messages(client_id, client_builder, messages_count, duration):
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client = client_builder()
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CLIENTS.append(client)
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if duration:
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with timeutils.StopWatch(duration) as stop_watch:
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while not stop_watch.expired():
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client.send_msg()
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eventlet.sleep()
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else:
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LOG.debug("Sending %d messages using client %d",
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messages_count, client_id)
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for _ in six.moves.range(0, messages_count):
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client.send_msg()
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eventlet.sleep()
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LOG.debug("Client %d has sent %d messages", client_id, messages_count)
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time.sleep(1) # wait for replies to be collected
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def _rpc_call(client, msg):
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try:
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res = client.call({}, 'info', message=msg)
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except Exception as e:
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LOG.exception('Error %s on CALL for message %s', str(e), msg)
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raise
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else:
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LOG.debug("SENT: %s, RCV: %s", msg, res)
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return res
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def _rpc_cast(client, msg):
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try:
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client.cast({}, 'info', message=msg)
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except Exception as e:
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LOG.exception('Error %s on CAST for message %s', str(e), msg)
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raise
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else:
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LOG.debug("SENT: %s", msg)
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def _notify(notification_client, msg):
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notification_client.info({}, 'compute.start', msg)
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def show_server_stats(endpoint, json_filename):
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LOG.info('=' * 35 + ' summary ' + '=' * 35)
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output = dict(series={}, summary={})
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output['series']['server'] = endpoint.received_messages.get_series()
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stats = MessageStatsCollector.calc_stats(
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'server', endpoint.received_messages)
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output['summary'] = stats
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if json_filename:
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write_json_file(json_filename, output)
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def show_client_stats(clients, json_filename, has_reply=False):
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LOG.info('=' * 35 + ' summary ' + '=' * 35)
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output = dict(series={}, summary={})
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for cl in clients:
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cl_id = cl.client_id
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output['series']['client_%s' % cl_id] = cl.sent_messages.get_series()
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output['series']['error_%s' % cl_id] = cl.errors.get_series()
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if has_reply:
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output['series']['round_trip_%s' % cl_id] = (
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cl.round_trip_messages.get_series())
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sent_stats = MessageStatsCollector.calc_stats(
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'client', *(cl.sent_messages for cl in clients))
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output['summary']['client'] = sent_stats
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error_stats = MessageStatsCollector.calc_stats(
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'error', *(cl.errors for cl in clients))
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output['summary']['error'] = error_stats
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if has_reply:
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round_trip_stats = MessageStatsCollector.calc_stats(
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'round-trip', *(cl.round_trip_messages for cl in clients))
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output['summary']['round_trip'] = round_trip_stats
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if json_filename:
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write_json_file(json_filename, output)
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def write_json_file(filename, output):
|
|
with open(filename, 'w') as f:
|
|
f.write(json.dumps(output))
|
|
LOG.info('Stats are written into %s', filename)
|
|
|
|
|
|
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('-j', '--json', dest='json_filename',
|
|
help='File name to store results in JSON format')
|
|
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('-w', dest='wait_before_answer', type=int, default=-1)
|
|
server.add_argument('--requeue', dest='requeue', action='store_true')
|
|
|
|
server = subparsers.add_parser('batch-notify-server')
|
|
server.add_argument('-w', dest='wait_before_answer', type=int, default=-1)
|
|
server.add_argument('--requeue', dest='requeue', action='store_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=float, 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('-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=float, 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)
|
|
|
|
if args.mode in ['rpc-client', 'notify-client']:
|
|
# always generate maximum number of messages for duration-limited tests
|
|
generate_messages(MESSAGES_LIMIT if args.duration else args.messages)
|
|
|
|
# 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"
|
|
|
|
endpoint = rpc_server(transport, target, args.wait_before_answer,
|
|
args.executor, args.duration)
|
|
show_server_stats(endpoint, args.json_filename)
|
|
|
|
elif args.mode == 'notify-server':
|
|
endpoint = notify_server(transport, args.topic,
|
|
args.wait_before_answer, args.duration,
|
|
args.requeue)
|
|
show_server_stats(endpoint, args.json_filename)
|
|
|
|
elif args.mode == 'batch-notify-server':
|
|
endpoint = batch_notify_server(transport, args.topic,
|
|
args.wait_before_answer, args.duration,
|
|
args.requeue)
|
|
show_server_stats(endpoint, args.json_filename)
|
|
|
|
elif args.mode == 'notify-client':
|
|
spawn_notify_clients(args.threads, args.topic, transport,
|
|
args.messages, args.wait_after_msg, args.timeout,
|
|
args.duration)
|
|
show_client_stats(CLIENTS, args.json_filename)
|
|
|
|
elif args.mode == 'rpc-client':
|
|
targets = [target.partition('.')[::2] for target in args.targets]
|
|
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)
|
|
|
|
show_client_stats(CLIENTS, args.json_filename, not args.is_cast)
|
|
|
|
if args.exit_wait:
|
|
LOG.info("Finished. waiting for %d seconds", args.exit_wait)
|
|
time.sleep(args.exit_wait)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
RANDOM_GENERATOR = init_random_generator()
|
|
CURRENT_PID = os.getpid()
|
|
main()
|