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FreeRTOS / coreMQTT

Client implementation of the MQTT 3.1.1 specification for embedded devices
MIT License
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No ack found for packet id #270

Closed BogdanTheGeek closed 9 months ago

BogdanTheGeek commented 9 months ago

After a running for a long time, these messages accumulate:

I (146451442) network: Attempting to connect to MQTT
I (146450881) hmqtt: Connected to MQTT.
I (146450882) hmqtt: Session present.
E (146450882) coreMQTT: No ack found for packet id 15788.
E (146450886) coreMQTT: No ack found for packet id 16425.
E (146450893) coreMQTT: No ack found for packet id 60272.
E (146450899) coreMQTT: No ack found for packet id 26707.
E (146450905) coreMQTT: No ack found for packet id 28396.
E (146450912) coreMQTT: No ack found for packet id 49384.
E (146450918) coreMQTT: No ack found for packet id 49987.
E (146450925) coreMQTT: No ack found for packet id 62338.
E (146450931) coreMQTT: No ack found for packet id 43880.
E (146450938) coreMQTT: No ack found for packet id 34763.
I (146450944) hmqtt: Session resumed.
I (146451992) network: ConnectToMQTT succeeded
I (146450954) hmqtt: Waiting for network to be ready...
I (146450960) network: Subscribing to MQTT topics ...

This only happens on some devices, some of the time. What is the cause of this issue? Is it due to maintaining the session across reconnects?

I am using coreMQTT v2.1.1 and coreMQTT-Agent V1.2

bradleysmith23 commented 9 months ago

Hello, @BogdanTheGeek! This would be a great forum question, thank you for the question! Could you repost this question on the FreeRTOS Forums? It would get a lot more discussion over there (You can sign in with your Github account). Thank you!

BogdanTheGeek commented 9 months ago

Thank you @bradleysmith23. Here is the conversation for anyone interested in the future: https://forums.freertos.org/t/coremqtt-no-ack-found-for-packet-id/18737