mosquitto-users team mailing list archive

[Roger Light <roger@xxxxxxxxxx>]

Hi Stefano,

One thing to be aware of is that "messages" here is all MQTT command
messages, not just the PUBLISH messages. It is possible that is
skewing your results. You could look at $SYS/broker/publish/messages/#
instead.

You can see this clearly on test.mosquitto.org:

$SYS/broker/messages/received                  160349417
$SYS/broker/publish/messages/received      86505065

$SYS/broker/messages/sent                 107708395
$SYS/broker/publish/messages/sent     33657732

Also, don't forget that $SYS is only updated periodically.

Cheers,

Roger

On Thu, Jul 18, 2013 at 5:05 PM, Stefano Costa
<stefano.costa@xxxxxxxxxxx> wrote:
> Hello,
> before I start investigating further: it seems to me that the statistics
> offered by subscribing to $SYS are not accurate; I'm looking at:
>
> $SYS/broker/messages/received
> $SYS/broker/messages/sent
>
> and both counters seem not to reflect actual messages exchanged during a
> session with a high rate (say 10 messages per second).
>
> Anything similar already seen?
> Thanks
>
> --
>   Stefano Costa, R&D Manager
>   M +39 335 6565749
>   Skype stefanocosta.bluewind
>   Twitter @stefanobluewind
>   http://www.bluewind.it
>
>
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