That looks correct to me. I’ve done this before with InfluxDB and it worked and I configured it much like this.
You can try experimenting in the karaf console to see if perhaps the package for rrd4j isn’t right. I don’t have the config I used back when I set it up for influxdb but I do remember that I got the package name from the exception I was seeing in the logs at the time. I don’t remember if they were different from what you are trying.
It is possible, though very unlikely, that rrd4j doesn’t do much logging.