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Did you setup rrd4j manually or did you use the default setting?
– being new to openhab, i left openhabian base installation. -
What graph are you referring to? MainUI Analyze?
– MainUI Analyze. -
I do use rrd4j ( in an old custom setup) and looking at the Analyze page I see lines, no dots.
– in the attached image note that scrolling with the mouse inside the graph, a timeline is generated. when this line is near the point (stored data) it is displayed and the window shows the details (such as day, time and value). continuing to move, all the memorized points with which the graphs are constructed are highlighted.
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Regarding the lost data, are you using ZRAM? If yes, how did you restart?
– the zram function, I noticed it in the configuration menu. I have not made any changes since the base installation, as I do not have enough knowledge to be able to decide which settings to adopt. How do I see how the ZRAM is configured? -
To shut down the system I use “sudo service openhab2 stop && sudo / sbin / shutdown -h now”
