I’m using Grafana v2.9.3 with the MQTT datasource plugin. The broker is hosted on the same server and is accessible on standard port 1883 without credentials (allow anonymous login = True).
The MQTT datasource confirms a succesful connection and when opening the Explore page it does appear to try and stream data (given the blue scrolling line above the table).
However: No data will ever show up, no matter what I post in the selected topic. Does the data require a specific format? If so what would that be?