Greatings,
I am new to OH2 and I could work out most issue by my own but now I run into an issue with RRD4J which is not showing the chart. There is now picture showing up.
I am running
OH2 2.4.0-1
Java 8
openjdk version “1.8.0_202”
OpenJDK Runtime Environment (Zulu8.36.0.152-CA-linux_aarch32hf) (build 1.8.0_202 -b152)
OpenJDK Client VM (Zulu8.36.0.152-CA-linux_aarch32hf) (build 25.202-b152, mixed mode, Evaluation)
Item file includes
Group Wohnzimmer
Number:Temperatur Wohnzimmer_Solltemperatur "Solltemperatur [%.1f °C]" <Temperatur> (Wohnzimmer) {channel="avmfritz:Comet_DECT:192_xxx_xxx_xxx:xxxx:set_temp"}
Number:Temperatur Wohnzimmer_Temperatur "Temperatur" <Temperatur> (Wohnzimmer) {channel="avmfritz:Comet_DECT:192_xxx_xxx_xxx:xxx:temperature"}
String Wohnzimmer_CometMode "Heizungsmodus [%s]" (Wohnzimmer) { channel="avmfritz:Comet_DECT:192_xxx_xxx_xxx:xxx:radiator_mode" }
Sitemap code is
Frame label="Temp. Innen/Außen" {
Chart item=Wohnzimmer_Temperatur period=h refresh=7200
}
rrd4j.persist includes code
Strategies {
everyMinute : "0 * * * * ?"
everyHour : "0 0 * * * ?"
everyDay : "0 0 0 * * ?"
default = everyChange
}
Items {
//Innentemperatur
Wohnzimmer_Temperatur : strategy = everyMinute, restoreOnStartup
}
I get following failure message in the log file
2019-04-13 09:18:06.164 [WARN ] [thome.ui.internal.chart.ChartServlet] - Chart generation failed: null
Any first aid? Thank you in advance!