Here is a way I found to edit rrd files in order to eliminate spikes, inaccurate measurements and other artifacts on my persistence.
To start with, openhab2 has to be stopped:
$ sudo systemctl stop openhab2
Next navigate to your persistence storage folder and locate the rrd files that I wanted to edit. I copied them on a temporary folder:
$ cd /var/lib/openhab2/persistence/rrd4j (or your samba path: \\servername\openHAB-share\openhab2-userdata\persistence\rrd4j)
$ cp -Rpdf Boiler_Temp_Val.rrd /tmp
Next was the RRD File Inspector ( rrd4j-2.1.1.jar_.7z (76 downloads) ).
It is located in the library
org.openhab.persistence.rrd4j under the folder
On my machine it is located under the
I extracted the contents of the jar file using a zip extractor (I did this from my windows workstation using 7zip):
To run the inspector I opened a command line (cmd) and run:
java -cp rrd4j-2.1.1.jar org.rrd4j.inspector.RrdInspector
From the RRD File Inspector I opened the files I wanted to edit:
I saved files and then placed them back at the openhab persistence folder.
Finally, restarted openhab:
$ sudo systemctl start openhab2