I have tried to get graphana to show me how my feed is going day after day but it will only show me 4 hours of data.
James described it: "It saves 4 hours to ram tmp filesystem, If you hosted your own prometheus on the same network then configured it scrape the pi /metrics. Then you could have as much persistence as you wanted. https://prometheus.io/"
So prometeus.io is a server? This sounds difficult but its probably worthwhile. Has someone made a. Tutorial how to do this? Or perhaps when I finally figure it out i could post one.
DIY . If you want to have long term stats install adsb-receiver portal. https://github.com/jprochazka/adsb-receiver Install portal only, you already have feeders installed.
You can change it. It saves 4 hours because it writes the database in ram. Pi has limited ram. I think you can push it to 24 hours without crashing the Pi.
Change the storage.local.retention to whatever you want. Just don't use all the RAM. ADSBx image is intended to run remotely for years without trashing the SD card with write cycles. sudo nano /home/pi/adsbexchange-prom.sh change time .. CRTL+O then sudo shutdown -r now
I changed my 512 MB Pi Zero W to 36 hours .. let's see if it works in a busy airspace. You could also decrease the rate at which it saves data. You could put a promethues and grafana on a PC on the local network and point them to the Pi, or point the Pi to them ..... all kinds of things are possible.