web-dev-qa-db-ja.com

キューの同等ではない引数 'durable'

助けが必要です。私はこのコードを以下に示しており、耐久性のあるパラメータを渡していないことがログからわかりますが、ご覧のとおり、渡しています。私はすべてを試しましたが、いつも同じ間違いがあります。

このコードをマウントするには、次のリンクを使用しました。

https://github.com/sk2/ANK-NG/blob/master/rabbitmq/rabbit_websocket.py

https://pika.readthedocs.io/en/0.10.0/examples/tornado_consumer.html

websocket.py：

import pika
import tornado
import tornado.websocket as websocket
from tornado.options import options, define, parse_command_line
import tornado.httpserver
import tornado.ioloop
import tornado.wsgi
from pika.adapters.tornado_connection import TornadoConnection
from witbot import recebeInput
import logging

LOG_FORMAT = ('%(levelname) -10s %(asctime)s %(name) -30s %(funcName) '
              '-35s %(lineno) -5d: %(message)s')
LOGGER = logging.getLogger(__name__)


class MyWebSocketHandler(websocket.WebSocketHandler):
    def allow_draft76(self):
        # for iOS 5.0 Safari
        return True

    def check_Origin(self, Origin):
        return True

    def open(self, *args, **kwargs):
        self.application.pc.add_event_listener(self)
        print ("WebSocket opened")

    def on_close(self):
        print ("WebSocket closed")
        self.application.pc.remove_event_listener(self)

    def on_message(self, message):
        print (message)
        self.application.pc.send_message(message)

class PikaClient(object):
    def __init__(self, io_loop):
        print ('PikaClient: __init__')
        self.io_loop = io_loop
        self.connected = False
        self.connecting = False
        self.connection = None
        self.channel = None
        self.event_listeners = set([])

    def connect(self):
        logging.basicConfig(level=logging.DEBUG)
        if self.connecting:
            print ('PikaClient: Already connecting to RabbitMQ')
            return

        print ('PikaClient: Connecting to RabbitMQ')
        self.connecting = True

        port = 5672
        cred = pika.PlainCredentials(username='guest', password='guest')
        param = pika.ConnectionParameters(Host='192.168.99.100',port=port,credentials=cred,heartbeat_interval=5)
        print(param)
        self.connection = TornadoConnection(param,
            on_open_callback=self.on_connected)
        print(self.connection)
        self.connection.add_on_close_callback(self.on_closed)

    def on_connected(self, connection):
        print ('PikaClient: connected to RabbitMQ')
        self.connected = True
        self.connection = connection
        self.connection.channel(self.on_channel_open)

    def on_channel_open(self, channel):
        print ('PikaClient: Channel open, Declaring exchange')
        self.channel = channel
        self.setup_exchange('amq.topic')


    def setup_exchange(self, exchange_name):
        print('Declaring exchange %s', exchange_name)
        self.channel.exchange_declare(self.on_exchange_declareok, exchange=exchange_name,exchange_type='topic',durable=True)

    def on_exchange_declareok(self, unused_frame):
        print('Exchange declared')
        self.setup_queue('bot.commands')

    def setup_queue(self, queue_name):
        print('Declaring queue %s', queue_name)
        self.channel.queue_declare(self.on_queue_declareok, queue_name)

    def on_queue_declareok(self, method_frame):
        print ('Binding %s to %s with %s', 'amq.topic', 'bot.commands', 'bot.commands')
        self.channel.queue_bind(self.on_bindok, 'bot.commands',
                                 'amq.topic', 'bot.commands')
    def on_bindok(self, unused_frame):
        print('Queue bound')
        self.start_consuming()

    def start_consuming(self):
        print('Issuing consumer related RPC commands')
        self._consumer_tag = self.channel.basic_consume(self.on_message,'bot.commands')

    def on_closed(self, connection):
        print ('PikaClient: rabbit connection closed')
        self.io_loop.stop()

    def on_message(self, channel, method, header, body):
        print ('PikaClient: message received: %s' % body)
        self.notify_listeners(body)

    def send_message(self, body):
        self.channel.basic_publish(exchange='topic',
                      routing_key='bot.commands',
                      body=body)

    def notify_listeners(self, body):
        bot = recebeInput.decisoes(recebeInput.devolveEntidade(recebeInput.trataJson(body)))
        for listener in self.event_listeners:
            listener.write_message(bot)
            print ('PikaClient: notified %s' % repr(listener))

    def add_event_listener(self, listener):
        print ("added listener")
        self.event_listeners.add(listener)
        print ('PikaClient: listener %s added' % repr(listener))

    def remove_event_listener(self, listener):
        try:
            self.event_listeners.remove(listener)
            print ('PikaClient: listener %s removed' % repr(listener))
        except KeyError:
            pass


def main():
    parse_command_line()
    aplication = tornado.web.Application([
        (r'/ws', MyWebSocketHandler)
    ])
    # server = tornado.httpserver.HTTPServer(aplication)
    io_loop = tornado.ioloop.IOLoop.instance()
    # PikaClient is our rabbitmq consumer
    pc = PikaClient(io_loop)
    aplication.pc = pc
    aplication.pc.connect()
    aplication.listen(8081)
    io_loop.start()

if __name__ == '__main__':
    main()

エラーログ：

websocket_1  | PikaClient: connected to RabbitMQ
websocket_1  | PikaClient: Channel open, Declaring exchange
websocket_1  | Declaring exchange %s amq.topic
websocket_1  | Exchange declared
websocket_1  | Declaring queue %s bot.commands
rabbit1_1    | 2018-07-17 15:48:18.792 [info] <0.6936.0> connection
<0.6936.0> (172.18.0.1:37556 -> 172.18.0.6:5672): user 'guest' authenticated and granted access to vhost '/'
websocket_1  | [W 180717 15:48:18 channel:1034] Received remote Channel.Close (406): "PRECONDITION_FAILED - inequivalent arg 'durable' for queue 'bot.commands' in vhost '/': received 'false' but current is 'true'" on <Channel number=1 OPEN conn=<TornadoConnection OPEN socket=('172.18.0.2', 47986)->('192.168.99.100', 5672) params=<ConnectionParameters Host=192.168.99.100 port=5672 virtual_Host=/ ssl=False>>>
websocket_1  | [I 180717 15:48:24 web:2162] 101 GET /ws (192.168.99.1) 1.29ms
websocket_1  | added listener
websocket_1  | PikaClient: listener <__main__.MyWebSocketHandler object at 0x7f483b277cf8> added
websocket_1  | WebSocket opened
python-3.xdockertornadopika
6
Daniel Pereira

おそらく、キューはすでに存在していて永続的であるため、ライブラリがサブスクライブしようとして永続的であることがわかると、非永続的キューを予期しているためエラーがスローされます。

4
randbw