Why does consumer have to specify QoS?

[V Z]

I don't understand why the consumer have to specify the QoS. Isn't it enough that the producer specified it?

[Roger Light]

Hi,

A publisher might publish at qos 2 but a subscribing client might not
have the capability/desire to store the message state required for
dealing with qos>0. Allowing the client to specify the maximum qos it
supports means it can still receive those messages.

Cheers,

Roger

On Fri, Sep 9, 2016 at 4:06 AM, V Z <uvzu...@gmail.com> wrote:
> I don't understand why the consumer have to specify the QoS. Isn't it enough that the producer specified it?
>

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