<p dir="ltr">Thanks for the help Simon. Definitely cleared some things up for me.<br>
Is there a way to track the bug or get notified when it is resolved?</p>
<div class="gmail_quote">On Jan 29, 2014 7:16 AM, "Simon MacMullen" <<a href="mailto:simon@rabbitmq.com">simon@rabbitmq.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Please keep rabbitmq-discuss on CC.<br>
<br>
On 29/01/14 13:09, Jon Vollmer wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Thanks for the info Simon. I think that is an area where documentation<br>
could be improved because the QoS concept really is different from the<br>
concept of message persistence, it really only deals with message<br>
delivery in the MQTT spec.<br>
</blockquote>
<br>
QoS *does* deal with persistence.<br>
<br>
>From section 3.3 PUBLISH:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
PUBLISH messages can be sent either from a publisher to the server,<br>
or from the server to a subscriber. The action of the recipient when<br>
it receives a message depends on the QoS level of the message:<br>
<br>
QoS 0<br>
Make the message available to any interested parties.<br>
QoS 1<br>
Log the message to persistent storage, make it available to any<br>
interested parties, and return a PUBACK message to the sender.<br>
</blockquote>
<br>
On 29/01/14 13:09, Jon Vollmer wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
It makes sense to combine the concepts though, but I agree that there<br>
does seem to be a bug. When publishing a QoS 1 MQTT message I can see<br>
the "x-mqtt-publish-qos : 1" header but there is no delivery mode header<br>
and if I stop/start the broker before a consumer grabs the message then<br>
it will not be there when I restart.<br>
</blockquote>
<br>
Oh, that's a bug, absolutely.<br>
<br>
Cheers, Simon<br>
<br>
-- <br>
Simon MacMullen<br>
RabbitMQ, Pivotal<br>
</blockquote></div>