Using "non-standard" RRDtool DS names with Weathermap
So you've designed your map, picked out all your data sources from Cacti, and now you find that everything shows as zero. You know that you should always look in the logs, and you see this error:
WEATHERMAP: Poller[0] RRD ReadData: Neither of your DS names (traffic_in & traffic_out) were found, even though there was a valid data line. Maybe they are wrong?
What on earth does that mean?