running openHAB3.2-stable on a openHABian setup.
default persistence is the default (no rrd4j.cfg nor rrd4j.persist - so there must be the default configuration for that) ist active.
If I try to graph items (“Analyze” e.g.) it works - except for one specific item I found. It isn’t soo different, but with others it works and with that it doesn’t.
item’s configuration:
Number:Power maxLadeleistungEAuto "max. AC-Ladeleistung an der Wallbox" <energy> (EV,EnergieEinstellungen) ["Car"] { stateDescription=" "[ pattern="%.0f kW"] }
The graph is just empty (sorry, german)
(other items with the same configuration show up in their graphs!?)
As you can see, there’s no graph here - but! if i request some information from the API, the information is there?
http://openhab:8080/rest/persistence/items/LadeleistungEAuto?serviceId=rrd4j&starttime=2022-04-09T12%3A00%3A00.000Z&endtime=2022-04-10T13%3A00%3A00.000Z
spits out:
{
"name": "LadeleistungEAuto",
"datapoints": "107",
"data": [
{
"time": 1649505600000,
"state": "6093.303899999999"
},
{
"time": 1649505660000,
"state": "4527.875083333333"
},
{
"time": 1649505720000,
"state": "5871.852933333333"
},
{
"time": 1649505780000,
"state": "6250.869866666667"
},
{
"time": 1649505840000,
"state": "5535.170133333334"
},
{
"time": 1649505900000,
"state": "7192.398050000001"
},
{
"time": 1649505960000,
"state": "6603.987166666667"
},
{
"time": 1649506020000,
"state": "5249.130633333334"
},
{
"time": 1649506080000,
"state": "4069.6181999999994"
},
{
"time": 1649506140000,
"state": "4065.5116000000003"
},
{
"time": 1649506200000,
"state": "4063.896666666666"
},
{
"time": 1649506260000,
"state": "5678.3065333333325"
},
{
"time": 1649506320000,
"state": "5585.440483333333"
},
{
"time": 1649506380000,
"state": "4069.0995"
},
{
"time": 1649506440000,
"state": "4062.3787666666667"
},
...
]
}
So, why does it not work here?
I already deleted the /srv/openhab-userdata/persistence/rrd4j/LadeleistungEAuto.rrd and it was built anew - with just the same result?
What is wrong with the item to not show the graph here?