出现ERROR: M..出现ERROR: MQTT NOT ALIVE OR MSG LIMIT错误,问下大神是怎么回事程序也上传成功了,MQTT也连接成功了,但是我在blinker按键就会出现ERROR: MQTT NOT ALIVE OR MSG LIMIT这样得错误
and the probes are sent every 30 seconds until a response is received from the MQTT client, if it misses 5 consecutive responses, EMQX should close the connection keepalive = "none" }
In MQTT 5.0, the server can not accept the Keep Alive value specified by the client, and returns a Server Keep Alive in the CONNACK packet. The client must use this Keep Alive time to maintain communication. Example By default, EMQX allows the client to specify the Keep Alive. We can ac...
"name":"","topic":"/testtopic","qos":"1","retain":"","broker":"e30d744f.9a1ae","x":980,"y":580,"wires":[]},{"id":"25333456.7145c4","type":"function","z":"e82c1d84.6da8","name":"","func":"\nfor(var i = 1; i<=2000; ++i)\n{\n msg.payload = i;\n node...
rabbit_mqtt_retained_msg_store_etsfor RAM-based rabbit_mqtt_retained_msg_store_detsfor disk-based (This is the default value.) These implementations are suitable for development but sometimes won't be for production needs. The MQTT specification does not define consistency or replication requirements...
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public voidconnect(java.lang.String willTopic, byte willQoS, java.lang.String willMsg, boolean willRetain) throwsMqttException,MqttPersistenceException,MqttBrokerUnavailableException,MqttNotConnectedException disconnect public voiddisconnect() throwsMqttException,MqttPersistenceException ...
Since the inbound messages in the fan-out scenario are less than the other two scenarios, we set the total throughput to be the same or close to the same load and then compare them. For example, the fan-out scenario with 100 msg/s inbound and 20K msg/s outbound is equivalent to the...
the number of messages in the MQTT connection process mailbox exceeds the setting mqtt.mailbox_soft_limit (defaults to 200), and the socket sending to the MQTT client is busy (not sending fast enough). Note that there can be other messages in the process mailbox (e.g. applications messag...
{ rc = FAILURE; /* PINGRESP not received in keepalive interval */ goto exit; } } else{ // If we have not sent or received anything in the timeout period, // send out a ping request if ( TimerIsExpired(&c->last_sent) || TimerIsExpired(&c->last_received) ) { Timer timer; ...