[paho-dev] Offline buffering of QoS 0 Messages

[Ian Craggs <icraggs@xxxxxxxxxxxxxxxxxxxxxxx>]

Hello all,

an issue was raised on the Go client, saying that buffering of QoS 0 
messages when not connected was contrary to the MQTT spec:

https://github.com/eclipse/paho.mqtt.golang/issues/2

I don't think it's clear at all that QoS 0 messages ought not to be 
buffered.  It hangs on whether you consider the attempt to send the 
messages after a reconnect to be a "retry".

I think this behaviour probably ought to be configurable in the client 
implementations of offline buffering, with a default of... well I would 
go for "do buffer".   What does anyone/everyone else think?

--
Ian Craggs
icraggs@xxxxxxxxxx                 IBM United Kingdom
Paho Project Lead; Committer on Mosquitto