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sockets - ConnectionRefusedError: [Errno 111] 连接被拒绝 - MQTT

问题描述

我对使用 MQTT 的套接字和通信非常陌生。已经花了几个小时，但不知道出了什么问题。请帮我解决这个错误。我正在使用下面的代码，

import socket
import json
from random import randint
from inference import Network
import paho.mqtt.client as mqtt

HOSTNAME = socket.gethostname()
IPADDRESS = socket.gethostbyname(HOSTNAME)
MQTT_HOST = IPADDRESS
MQTT_PORT = 1883 ### TODO: Set the Port for MQTT
MQTT_KEEPALIVE_INTERVAL = 60

client = mqtt.Client()
client.connect(MQTT_HOST,MQTT_PORT,MQTT_KEEPALIVE_INTERVAL)

错误和回溯如下所示，

(venv) root@119d16139409:/home/workspace# python app.py | ffmpeg -v warning -f rawvideo -pixel_format bgr24 -video_size 1280x720 -framerate 24 -i - http://0.0.0.0:3004/fac.ffm
Traceback (most recent call last):
  File "app.py", line 145, in <module>
    main()
  File "app.py", line 141, in main
    infer_on_video(args, model)
  File "app.py", line 74, in infer_on_video
    client.connect(MQTT_HOST,MQTT_PORT,MQTT_KEEPALIVE_INTERVAL)
  File "/opt/intel/openvino_2019.3.376/deployment_tools/model_optimizer/venv/lib/python3.5/site-packages/paho/mqtt/client.py", line 937, in connect
    return self.reconnect()
  File "/opt/intel/openvino_2019.3.376/deployment_tools/model_optimizer/venv/lib/python3.5/site-packages/paho/mqtt/client.py", line 1071, in reconnect
    sock = self._create_socket_connection()
  File "/opt/intel/openvino_2019.3.376/deployment_tools/model_optimizer/venv/lib/python3.5/site-packages/paho/mqtt/client.py", line 3522, in _create_socket_connection
    return socket.create_connection(addr, source_address=source, timeout=self._keepalive)
  File "/usr/lib/python3.5/socket.py", line 711, in create_connection
    raise err
  File "/usr/lib/python3.5/socket.py", line 702, in create_connection
    sock.connect(sa)
ConnectionRefusedError: [Errno 111] Connection refused

标签： socketsclientmqttbroker

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