Errno 113 Python MQTT客户端没有到主机的路由

我让ActiveMQ服务器在192.168.11.11上运行，为了测试，我尝试从同一台服务器上运行MQTT客户机，结果出现以下错误

[Errno 113] No route to host
Traceback (most recent call last):
  File "mqtt-client.py", line 45, in <module>
    client.connect("192.168.11.11", 30083, 60)  # Connect to (broker, port, keepalive-time)
  File "/usr/lib/python2.7/site-packages/paho/mqtt/client.py", line 839, in connect
    return self.reconnect()
  File "/usr/lib/python2.7/site-packages/paho/mqtt/client.py", line 962, in reconnect
    sock = socket.create_connection((self._host, self._port), source_address=(self._bind_address, 0))
  File "/usr/lib64/python2.7/socket.py", line 571, in create_connection
    raise err
error: [Errno 113] No route to host
Traceback (most recent call last):
  File "mqtt-client.py", line 45, in <module>
    client.connect("192.168.11.11", 30083, 60)  # Connect to (broker, port, keepalive-time)
  File "/usr/lib/python2.7/site-packages/paho/mqtt/client.py", line 839, in connect
    return self.reconnect()
  File "/usr/lib/python2.7/site-packages/paho/mqtt/client.py", line 962, in reconnect
    sock = socket.create_connection((self._host, self._port), source_address=(self._bind_address, 0))
  File "/usr/lib64/python2.7/socket.py", line 571, in create_connection
    raise err
socket.error: [Errno 113] No route to host

检查netstat

netstat -tulnp | grep 30083
tcp        1      0 0.0.0.0:30083           0.0.0.0:*               LISTEN      15815/kube-proxy

但是当我像下面这样修改代码时，它就工作了

发件人：

致：

有人能解释一下原因吗

EDIT1:

工作代码

不工作代码 如果我从其他机器上运行此代码，它可以正常工作。它仅在ActiveMQ和此代码在同一服务器上运行时才会产生问题

def on_connect(client, userdata, flags, rc):
    print("Connected with result code {0}".format(str(rc)))  
    client.subscribe("app/status")


def on_disconnect(client, userdata, rc):
    logger.info("Disconnected with result code {0}".format(str(rc)))


def on_message(client, userdata, msg):  
    print("Message received-> " + msg.topic )

try:
    log_setup()
    client = mqtt.Client("amq_comm_test")
    client.enable_logger(logger)
    client.on_connect = on_connect
    client.on_message = on_message  
    client.connect("192.168.11.11", 30083, 60)  
    client.loop_forever()  
except KeyboardInterrupt:
    logging.warn("Cancelled by user")
except Exception as ex:
    logging.exception("Unhandled error\n{}".format(ex))
    raise
finally:
    logging.shutdown()

---

好，

0.0.0

对于目标地址仍然没有意义，您应该尝试使用

127.0.0.1

。但是本地IP地址的

无主机路由错误

可能意味着路由表混乱。您是否在与broke相同的机器上运行了

telnet

，或者在其他地方运行过？它也适用于127.0.0.1，我在同一台机器上运行telnet，它也可以运行。

client.connect("192.168.11.11", 30083, 60) 

client.connect("0.0.0.0", 30083, 60)

def on_connect(client, userdata, flags, rc):
    print("Connected with result code {0}".format(str(rc)))  
    client.subscribe("app/status")


def on_disconnect(client, userdata, rc):
    logger.info("Disconnected with result code {0}".format(str(rc)))


def on_message(client, userdata, msg):  
    print("Message received-> " + msg.topic )

try:
    log_setup()
    client = mqtt.Client("amq_comm_test")
    client.enable_logger(logger)
    client.on_connect = on_connect
    client.on_message = on_message  
    client.connect("0.0.0.0", 30083, 60)  
    client.loop_forever()  
except KeyboardInterrupt:
    # handle Ctrl-C
    logging.warn("Cancelled by user")
except Exception as ex:
    logging.exception("Unhandled error\n{}".format(ex))
    raise
finally:
    logging.shutdown()

def on_connect(client, userdata, flags, rc):
    print("Connected with result code {0}".format(str(rc)))  
    client.subscribe("app/status")


def on_disconnect(client, userdata, rc):
    logger.info("Disconnected with result code {0}".format(str(rc)))


def on_message(client, userdata, msg):  
    print("Message received-> " + msg.topic )

try:
    log_setup()
    client = mqtt.Client("amq_comm_test")
    client.enable_logger(logger)
    client.on_connect = on_connect
    client.on_message = on_message  
    client.connect("192.168.11.11", 30083, 60)  
    client.loop_forever()  
except KeyboardInterrupt:
    logging.warn("Cancelled by user")
except Exception as ex:
    logging.exception("Unhandled error\n{}".format(ex))
    raise
finally:
    logging.shutdown()