I took a look into the rrd4j persistence for OH3.
Initially I want to thank for the update of this (and all other) persistence services in order to be useable on OH3!
I could not find an update of the documentation reflecting the changes, did I miss it or should I start working on it? In order to do the later I need the following clarifications.
I noticed that rrd4j does persis a value now INTERNALLY every ten seconds, IMHO this would make the requirement for the
everyMinutestrategy obsolete (tested with every2Minues, however only in archive 1 of a default database [which?]). IMHO this internal behaviour creates a better charting resolution, the used persistence strategy is working as expected (i.e. with an everyMinute strategy a NEW value is persisted only once every minute, the intermediate internall savings are using unchanged values).
There are three different default database setups created (numeric, quantifiable and other), how are they selectable? How to determine which is actually used?