Hi,
running OH2 on a Raspberry 3.
so I installed the rrd4j persistence service and created the rrd4j.persist file, which contains only the energy-usage item from my power outlet:
Strategies {
everyMinute : "0 * * * * ?"
everyHour : "0 0 * * * ?"
default = everyChange
}
Items {
Lamp_EnergyUsage : strategy = everyMinute, restoreOnStartup
}
I now tried to show the chart, but neither HABpanel nor a basicUI sitemap work.
The log shows:
Chart generation failed: null
I checked the persistance service via a REST API call, the database records the information.
My basicUI sitemap was this:
sitemap test label="Test" {
Frame {
Chart item=Lamp_EnergyUsage refresh=10000 period=h legend=true
}
}
Anyone knows whats the problem?
Edit:
If I refresh the HABpanel site I get a long error message in the log, I’ve attached it.