Subscriber never receiving message Fan out about vmq_mzbench

[ioolkos]

Hi @artandor thanks for the issue.
Can you tell me what the MZbench WebGUI tells you about the error you see?

In other words: does the test script start running, or not? do you see latency graph for the QoS 0 metrics?

[artandor]

The job will run, publishing will work well, but subscribing won't do anything.

I took screenshots of the graphs.

Here is the screen for the mqtt internal stats :

And here are the screens for most importants boards in the 1 to 1 scenario.

Thanks a lot for your fast answer :)

[ioolkos]

In the "MQTT connections pane" do you have 500 or 501 connections? (1 publisher).

[ioolkos]

Oh, and start playing around with the timing. Slow down the connection setup, for instance, instead of poisson 1000, set it to poisson 100. Then wait with the publisher for a little longer before you start publishing: wait(20 sec) or something. The underlying bench client is brutally asynchrounous which leads to strange timing effects possibly.

EDIT: on my laptop your script works as is.

[artandor]

What broker are you benching on ?

I had 501 connections

So you recommend to set 20s wait before starting the production loop ?

[ioolkos]

I use this to bench VerneMQ. (what broker are you testing?)

[artandor]

I'm testing it to bench on rabbitmq and activemq at the moment

Edit0 : Ok so, it's working on activemq now, but not on rabbitmq. Is there vernemq specific code in your package ?

Edit1: I'm still trying to find out what's wrong with RabbitMQ specificaly, I'll post an update and close the ticket once i find out.

[larshesel]

Hi @artandor did you figure out what the problem was?

[artandor]

Hi, no i did not.