Munin VS PlotFS

I rediscovered Munin. To my surprise it is written entirely in Perl. I remember Munin from years ago... it still seems healty and maintained and lies ready on your Deb-Repositories. So I followed the Easy Install Guide... which really is easy, but fails to mention that you need to install your own HTTP-Server to serve the HTML-reports.

A bit of background, which may make understanding my choices in this lib easier: Munin is a resource monitoring tool using rrdtool, usually run in a Server/Client Setup. The client accepts plugins which are just executables in a directory. Usually written in a scripting language, but it actually doesn't matter. Data is fetched every 5 minutes, plugins are first run with a config argument to spit out a munin graph config, followed by a run without arguments to present data. To support higher resolutions than just "every 5 minutes", graph config can contain config to tell munin one collects it every second. Then the fetching part needs to run as a daemon, writing a cache somewhere which gets output when munin wants the data.

Munin plugins and management script for monitoring various Pi-hole® statistics.

When you do not have enough power you would get errors because looking up the plots would simply fail. Sounds more that there is one disk which is slower. I had one 2TB external usb which was really slow and the latency of lookups was through the roof. Are you on linux ? Then install munin-monitoring.org it shows latency of the disks out of the box.

what os ? on linux install https://munin-monitoring.org/ it will give you disk latency information.

I'd say give Munin a try.

Munin plugins for monitoring Pi-hole®. Transforms a server into a powerful monitoring platform, as simple as one, two, three, ...four.

For anyone else on the Reddit mobile app, here’s a clickable link. PlotFS

I wrote a quick-n-dirty plot importer script for the fantastic PlotFS - for those unfamiliar, PlotFS is a very neat tool for getting the most out of your disks when storing plots on them. The importer script simply imports your plots one by one and gives you a report as it goes as to how far through it is. Give it a go and let me know what you think!

If your attempting to run many disks in on fs, I recommend using PlotFS (which I wrote)https://github.com/szatmary/PlotFS

So I made one. I decided to release the code because this is probably a common desire. If you like to live dangerously, it is available at https://github.com/szatmary/PlotFS