\u4f7f\u7528 nameko \u7684\u65f6\u5019\uff0c\u8bbe\u7f6e max_workers \u53ef\u4ee5\u5b9e\u73b0\u4e0d\u540c\u5e76\u53d1\u7684\u6d88\u8d39<\/p>\n
\u6211\u81ea\u5df1\u7528 eventlet+kombu \u5199\u4e86\u4e00\u4e2a\u6d88\u8d39\u8005\uff0c\u5374\u4e0d\u80fd\u5b9e\u73b0\u5e76\u53d1\u6d88\u8d39\uff0c\u53ea\u80fd\u4e00\u4e2a\u4e00\u4e2a\u6392\u961f\u6d88\u8d39<\/p>\n
\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
import random\nimport eventlet\neventlet.monkey_patch() # noqa (code before rest of imports)\nfrom kombu.mixins import ConsumerMixin\nfrom kombu.messaging import Consumer\nfrom kombu import Connection, Exchange, Queue\nfrom loguru import logger\nimport time\n\n\nclass MyConsumer(ConsumerMixin):\n def __init__(self, connection):\n self.connection = connection\n\n def get_consumers(self, Consumer, channel):\n print('\u521b\u5efa\u6d88\u8d39\u8005 start')\n queue_name = 'evt-ye.events-take--dna_create_service.auth'\n exchange_name = 'ye.events'\n routing_key = 'take'\n\n exchange = Exchange(exchange_name, type='topic')\n queue = Queue(\n queue_name, exchange=exchange,\n routing_key=routing_key,\n queue_arguments={'x-max-priority': 10}\n )\n\n # \u521b\u5efa\u4e00\u4e2a\u6d88\u8d39\u8005\uff0c\u5e76\u8bbe\u7f6e\u9884\u53d6\u6d88\u606f\u6570\u91cf\u4e3a10\n consumer = Consumer(\n queues=[queue], callbacks=[self.on_message],\n prefetch_count=10\n )\n print('\u521b\u5efa\u6d88\u8d39\u8005 down')\n return [consumer]\n\n def on_message(self, body, message):\n logger.debug(f"Received message: {body}")\n logger.debug(f'\u5f00\u59cb\u6d88\u8d39')\n time.sleep(3)\n logger.debug(f'\u7ed3\u675f\u6d88\u8d39')\n message.ack() # \u53d1\u9001ACK\u786e\u8ba4\u6d88\u606f\u63a5\u6536\n\n\nwith Connection('amqp:\/\/pon:pon@192.168.38.191:5672\/\/') as conn:\n consumer = MyConsumer(conn)\n consumer.run()\n\n<\/code><\/pre>\n\u5c31\u5f88\u70e6\uff0c\u600e\u4e48\u529e\uff0c\u6211\u5c31\u53bb\u7ffb\u4e86\u534a\u5929 nameko \u7684\u6e90\u7801\u4ee3\u7801\uff0c\u53d1\u73b0\u95ee\u9898\u5728\u8fd9\u91cc\uff1a<\/p>\n
site-packages\/nameko\/messaging.py<\/code> \u6ce8\u518c\u56de\u8c03\u51fd\u6570<\/p>\ndef handle_message(self, provider, body, message):\n ident = u"{}.handle_message[{}]".format(\n type(provider).__name__, message.delivery_info['routing_key']\n )\n self.container.spawn_managed_thread(\n partial(provider.handle_message, body, message), identifier=ident\n )\n\ndef get_consumers(self, consumer_cls, channel):\n """ Kombu callback to set up consumers.\n\n Called after any (re)connection to the broker.\n """\n _log.debug('setting up consumers %s', self)\n\n for provider in self._providers:\n callbacks = [partial(self.handle_message, provider)]\n\n consumer = consumer_cls(\n queues=[provider.queue],\n callbacks=callbacks,\n accept=self.accept\n )\n consumer.qos(prefetch_count=self.prefetch_count)\n\n self._consumers[provider] = consumer\n\n return self._consumers.values()<\/code><\/pre>\n\u7136\u540e kombu \u5728\u6536\u5230\u6d88\u606f\u4e4b\u540e\uff0c\u4f1a\u8c03\u7528\u4e4b\u524d\u6ce8\u518c\u7684\u56de\u8c03\u51fd\u6570
site-packages\/kombu\/messaging.py<\/code><\/p>\ndef receive(self, body, message):\n """Method called when a message is received.\n\n This dispatches to the registered :attr:`callbacks`.\n\n Arguments:\n body (Any): The decoded message body.\n message (~kombu.Message): The message instance.\n\n Raises:\n NotImplementedError: If no consumer callbacks have been\n registered.\n """\n callbacks = self.callbacks\n if not callbacks:\n raise NotImplementedError('Consumer does not have any callbacks')\n \n [callback(body, message) for callback in callbacks]<\/code><\/pre>\n\u6240\u4ee5\uff0c\u9053\u7406\u5f88\u7b80\u5355\uff0c\u6211\u6309\u7167 nameko \u7684\u601d\u8def\uff0c\u6539\u9020\u4e86\u4e00\u4e0b\u6211\u7684\u4ee3\u7801<\/p>\n
\u6700\u540e\u5b8c\u6574\u7684\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
import random\nimport eventlet\neventlet.monkey_patch() # noqa (code before rest of imports)\nfrom kombu.mixins import ConsumerMixin\nfrom kombu.messaging import Consumer\nfrom kombu import Connection, Exchange, Queue\nfrom loguru import logger\nimport time\n\n\nclass MyConsumer(ConsumerMixin):\n def __init__(self, connection):\n self.connection = connection\n\n def get_consumers(self, Consumer, channel):\n print('\u521b\u5efa\u6d88\u8d39\u8005 start')\n queue_name = 'evt-ye.events-take--dna_create_service.auth'\n exchange_name = 'ye.events'\n routing_key = 'take'\n\n exchange = Exchange(exchange_name, type='topic')\n queue = Queue(\n queue_name, exchange=exchange,\n routing_key=routing_key,\n queue_arguments={'x-max-priority': 10}\n )\n\n # \u521b\u5efa\u4e00\u4e2a\u6d88\u8d39\u8005\uff0c\u5e76\u8bbe\u7f6e\u9884\u53d6\u6d88\u606f\u6570\u91cf\u4e3a10\n consumer = Consumer(\n queues=[queue], callbacks=[self.on_message],\n prefetch_count=10\n )\n print('\u521b\u5efa\u6d88\u8d39\u8005 down')\n return [consumer]\n\n def on_message(self, body, message):\n eventlet.spawn(self._on_message, body, message)\n\n def _on_message(self, body, message):\n logger.debug(f"Received message: {body}")\n logger.debug(f'\u5f00\u59cb\u6d88\u8d39')\n time.sleep(3)\n logger.debug(f'\u7ed3\u675f\u6d88\u8d39')\n message.ack() # \u53d1\u9001ACK\u786e\u8ba4\u6d88\u606f\u63a5\u6536\n\n\nwith Connection('amqp:\/\/pon:pon@192.168.38.191:5672\/\/') as conn:\n consumer = MyConsumer(conn)\n consumer.run()\n<\/code><\/pre>\n\u4fee\u6539\u5176\u5b9e\u5f88\u7b80\u5355\uff0c\u628a\u56de\u8c03\u51fd\u6570\u6539\u9020\u4e00\u4e0b\uff0c\u6536\u5230\u6536\u5230\u6d88\u606f\u4e4b\u540e\uff0c\u7acb\u523b\u8d77\u4e00\u4e2a\u534f\u7a0b\u5904\u7406\uff0c\u8ba9\u534f\u7a0b\u5230\u540e\u53f0\u6162\u6162\u5904\u7406\uff0c\u4fdd\u6301\u56de\u8c03\u51fd\u6570\u6c38\u8fdc\u4e0d\u963b\u585e\u5c31\u597d\u4e86<\/p>\n