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比如我们执行一个很长的任务的时候，执行结束ack确认发现确认失败，mq都断了。

只要是使用pyhon的pika都会出现这个问题，因为pika本身是没有主动发送心跳机制的（你用java的话是没问题的）

解决方式:

在链接中heartbeat=0

credentials = pika.PlainCredentials('xxx','xxx')
connection = pika.BlockingConnection(pika.ConnectionParameters(
host = "xxxx",port = 5672, credentials = credentials , heartbeat=0
))

解决方式2:

我亲自试过，确实有用

改写代码（引用:Python RabbitMQ/Pika 长连接断开报错Connection reset by peer和pop from an empty deque_pika.exceptions.streamlosterror: stream connection-CSDN博客）

"""
@author: Zhigang Jiang
@date: 2022/1/16
@description:
"""
import functools
import pika
import threading
import timedef ack_message(channel, delivery_tag):print(f'ack_message thread id: {threading.get_ident()}')if channel.is_open:channel.basic_ack(delivery_tag)else:# Channel is already closed, so we can't ACK this message;# log and/or do something that makes sense for your app in this case.passdef do_work(channel, delivery_tag, body):print(f'do_work thread id: {threading.get_ident()}')print(body, "start")for i in range(10):print(i)time.sleep(20)print(body, "end")cb = functools.partial(ack_message, channel, delivery_tag)channel.connection.add_callback_threadsafe(cb)def on_message(channel, method_frame, header_frame, body):print(f'on_message thread id: {threading.get_ident()}')delivery_tag = method_frame.delivery_tagt = threading.Thread(target=do_work, args=(channel, delivery_tag, body))t.start()credentials = pika.PlainCredentials('username', 'password')
parameters = pika.ConnectionParameters('test.webapi.username.com', credentials=credentials, heartbeat=5)
connection = pika.BlockingConnection(parameters)
channel = connection.channel()
channel.queue_declare(queue="standard", durable=True)
channel.basic_qos(prefetch_count=1)
channel.basic_consume('standard', on_message)print(f'main thread id: {threading.get_ident()}')
try:channel.start_consuming()
except KeyboardInterrupt:channel.stop_consuming()
connection.close()

长时间的话，家里的网抖动可能出现，我们家有时候就会断网个10几秒，有时候打游戏就会掉线：

pika.exceptions.AMQPHeartbeatTimeout: No activity or too many missed heartbeats in the last xx seconds
这种情况，把他拉起就行了，加一个

while True:try:# 用户名密码，没有设置的可以省略这一步credentials = pika.PlainCredentials('xx', 'xx')connection = pika.BlockingConnection(pika.ConnectionParameters(host="xxxx", port=5672, credentials=credentials, heartbeat=10))channel = connection.channel()channel.queue_declare(queue="xxx", durable=True)  # 如果是持久化队列就是Truechannel.basic_qos(prefetch_count=1)channel.basic_consume("xxx", on_message)print(f'main thread id: {threading.get_ident()}')print("开始消费")channel.start_consuming()except KeyboardInterrupt:# channel.stop_consuming()print("出现异常，可能是网络原因，重新启动"+e)time.sleep(30)