From 28de384e9c667e6a9aae9ba99c8254e93c6a296b Mon Sep 17 00:00:00 2001
From: Victor Sergeyev <vsergeyev@mirantis.com>
Date: Tue, 18 Aug 2015 17:50:02 +0300
Subject: [PATCH] Improve simulator.py
- added config options to set debug level
- added config options to show proceed messages per second on rpc-server
- added config options to select executor for rpc-server
- added config options to select call or cast mesages for rpc-client
Usage section updated
Change-Id: Ieadbc600f556ca5eb43b05abec69315b46023662
---
tools/simulator.py | 138 +++++++++++++++++++++++++++++++++------------
1 file changed, 102 insertions(+), 36 deletions(-)
diff --git a/tools/simulator.py b/tools/simulator.py
index 2f54e0b3d..843abc8ce 100755
--- a/tools/simulator.py
+++ b/tools/simulator.py
@@ -10,19 +10,14 @@
# License for the specific language governing permissions and limitations
# under the License.
-# 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
-
import eventlet
eventlet.monkey_patch()
import argparse
+import datetime
import logging
import sys
+import threading
import time
from oslo_config import cfg
@@ -30,8 +25,19 @@ 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):
@@ -75,7 +81,7 @@ class RpcEndpoint(object):
self.wait_before_answer = wait_before_answer
def info(self, ctxt, message):
- i = int(message.replace('test ', ''))
+ i = int(message.split(' ')[-1])
if self.count is None:
self.count = i
elif i == 0:
@@ -89,11 +95,29 @@ class RpcEndpoint(object):
return "OK: %s" % message
-def rpc_server(transport, wait_before_answer):
- endpoints = [RpcEndpoint(wait_before_answer)]
- target = messaging.Target(topic='t1', server='moi')
- server = rpc.get_rpc_server(transport, target,
- endpoints, executor='eventlet')
+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()
@@ -105,23 +129,38 @@ def threads_spawner(threads, method, *args, **kwargs):
p.waitall()
-def rpc_call(_id, transport, messages, wait_after_msg, timeout):
- target = messaging.Target(topic='t1', server='moi')
- c = rpc.RPCClient(transport, target)
- c = c.prepare(timeout=timeout)
+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):
- payload = "test %d" % i
- LOG.info("SEND: %s" % payload)
- try:
- res = c.call({}, 'info', message=payload)
- except Exception:
- LOG.exception('no RCV for %s' % i)
- else:
- LOG.info("RCV: %s" % res)
+ 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)
@@ -137,11 +176,26 @@ def notifier(_id, transport, messages, wait_after_msg, timeout):
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='RPC DEMO')
+ 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')
@@ -158,6 +212,11 @@ def main():
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,
@@ -171,34 +230,41 @@ def main():
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
- logging.basicConfig(stream=sys.stdout, level=logging.DEBUG)
- logging.getLogger().handlers[0].addFilter(LoggingNoParsingFilter())
- for i in ['kombu', 'amqp', 'stevedore', 'qpid.messaging'
- 'oslo.messaging._drivers.amqp', ]:
- logging.getLogger(i).setLevel(logging.WARN)
+ _setup_logging(is_debug=args.debug)
# oslo.config defaults
cfg.CONF.heartbeat_interval = 5
cfg.CONF.notification_topics = "notif"
cfg.CONF.notification_driver = "messaging"
- # the transport
transport = messaging.get_transport(cfg.CONF, url=args.url)
+ target = messaging.Target(topic='profiler_topic', server='profiler_server')
if args.mode == 'rpc-server':
- rpc_server(transport, args.wait_before_answer)
+ 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':
- threads_spawner(args.threads, rpc_call, transport, args.messages,
- args.wait_after_msg, args.timeout)
+ 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)