Hi everybody, hi @korriander,
i have tested the MQTT node contained in NODE15’s workshop material ‘Internet of Things’:
Therefore i set up the following scenario:
- 2 VVVV-MQTT clients in a local network (i use 1 as sender and 1 as receiver)
- A local www.mosquitto.org broker (server) with default configuration running on one of those computers
Once i subscribe to ~100 topics and send continuous changing data for all of those topics, MQTT receiver (network) sometimes shows up red in some frames. TTY then says:
00:00:33 ERR : Exception occured in TMPluginWrapperNode.Evaluate 00:00:33 ERR : Die Warteschlange ist leer.
When subscribing to even more topics (~175) vvvv crashes immediately when data for all those topics is received.
This scenario is 100% reproducable in my setup.
Seems as if the MQTT receiver node would not be tweaked for high peformance with big spreadcounts? (while MQTT itself is probably not designed for such a real-time scenario, too?)