we had some issues with GOST server´s Paho client disconnecting from Mosquitto MQTT broker. The client sent a ping request to Mosquitto that was immediately answered with a ping response. This response was never acknowledged by the Paho client though and the connection ended with:
MQTT client lost connection: pingresp not received, disconnecting
The problem can be solved by setting the Paho client´s "Order" option to false (if message order is irrelevant for your application). So I made this option configurable in GOST server.
During the analysis I switched to Paho´s latest released version 1.1.1 and made the client´s debug logging configurable. Maybe this is also helpful for other MQTT issues.
Please get back to me with any questions or comments.
bertt
commented
5 years ago
Hi all,
we had some issues with GOST server´s Paho client disconnecting from Mosquitto MQTT broker. The client sent a ping request to Mosquitto that was immediately answered with a ping response. This response was never acknowledged by the Paho client though and the connection ended with:
MQTT client lost connection: pingresp not received, disconnectingThe same issue is discussed briefly here: https://github.com/eclipse/paho.mqtt.golang/issues/210
The problem can be solved by setting the Paho client´s "Order" option to false (if message order is irrelevant for your application). So I made this option configurable in GOST server.
During the analysis I switched to Paho´s latest released version 1.1.1 and made the client´s debug logging configurable. Maybe this is also helpful for other MQTT issues.
Please get back to me with any questions or comments.
Best regards
Jannis