Hi All!
I have a couple of quick questions on rrd4j setup, i read the tutorials, but couldn’t find the answer or interpret the answer from what was there:
#1— is the fastest you can record data points every 60 seconds? Or can you go shorter? I would like to save a unique value every 20 seconds. I setup my configuration as below, but it doesn’t seem to work (data is recorded as the default):
pv.def=GAUGE,600,0,U,20
pv.archives=AVERAGE,0.5,1,180:AVERAGE,0.5,3,720:AVERAGE,0.5,15,288:AVERAGE,0.5,30,1008:AVERAGE,0.5,180,720:AVERAGE,0.5,1080,720
pv.items=PVInputW,PVLoadW
My sample interval there, should be (i think), every 20 seconds? yes?
The data source i’m recording updates every 5 seconds and i have the strategy set to ‘everyChange’:
PVLoadW : strategy = everyChange, everyMinute
PVInputW : strategy = everyChange, everyMinute
#2---- Second question on rrd4j: I would like to capture a single value for an item, every day at 11:59pm. Use case: My solar charge unit has a reported value of ‘energy generated daily’, which resets at midnight each day. I’d like to record a history of the final value each day and chart it… any ideas how i could set this up? Maybe a cron strategy with that time? (But i read that for charting you HAVE to have everyMinute strategy?).
Thanks!