Hi, I’d like to use Netdata in a Raspberry Pi 2, but its default installation feels heavy, as it collects a LOT of metrics per second.
What setup/config would you recommend for a Raspberry Pi? Consider
Being gentle with writes to disk, as RPi uses an SD card that have a limited lifespan and sometimes get corrupted. I know that Netdata supports RAM storage, but it’d nice to dump from RAM to disk from time to time, so that there’s historical data.
The minimum and most important metrics (cpu, mem, disk, net in/out)
I read dbengine provides 3 storage tiers, with different update every values. Each one aggregates the previous one, so that’s ok. I was afraid that 1s resolution would turn big, but it’s not a big deal as it’s limited by dbengine multihost disk space MB and aggregated on the other tiers.
However, it’s a bit confusing which plugins to turn on/off, which are important, and which optional. For example, I disabled the apps one, and it seems to have reduced the metrics collected per sec, but now there are more charts, one for each systemd service. I guess it’s a matter of spending some time tinkering…
Why if I set update every 5 inside [db] block and restart netdata, I correctly see “Granularity: 5s” hovering a chart, however I keep seeing 1s sample rate in the dashboard live?
