If you start using InfluxDB to store your data (for example to get great charts with Grafana) you might want to migrate your old data from the “old” persistance service (like rrd4j) to the new database.
Otherwise our new charts would only start from the time you started using InflluxDB.
So here is a little bash script wich reads the available data via REST and imports the data to InfluxDB.
This main version of the script does work only with openHAB 2.0 at the moment!!!
Here is a branch wich is compatible (only) to openHAB 2.1: