Re: [mosquitto-dev] mosquitto.conf - subscribed topics using MQTT protoc

[Roger Light <roger@xxxxxxxxxx>]

Hi Bindu,

I've tested out this scenario and as far as I can tell it works as expected.

I've recorded a short asciicast of me doing that test so you can try
to investigate where the difference is:
https://asciinema.org/a/ICpJtr4cOPDxxpgYLIlVnjPSj

If what you are doing is different, could you please describe what
exactly is different?

Regards,

Roger

On Tue, 20 Apr 2021 at 17:38, Bindu Rao <bindu@xxxxxxxxxxxxx> wrote:
>
> Hi,
>
> I am using mosquitto broker with paho_mqtt client. I notice a problem in
> the following scenario:
> Usecase:
> - MQTT Protocol set to 5
> - Clean start = false and session expiry interval set to 30 secs
>
> I configure the client for publication and subscription on a topic.
> Terminate and restart mosquitto.
>
> Expected behaviour:
> - Should be able to receive messages on a subscribed topics after
> reconnection.
> Actual behaviour:
> - Session not remembered, hence need to be resubscribed even when clean
> the start is set to false by the client.
> I am using mosquitto - 2.0.10. The behaviour is perfectly ok when used
> with protocol 3.1.1.
> What configuration variables should be set in mosquitto.conf to get this
> working? Could you please provide inputs?
> Please note, that this works fine when I use other mqtt brokers.
>
> Thanks,
> Bindu
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