Bruno Suarez <bsua...@free.fr> wrote: Some clarification is needed, it could be that you are using terms that mean one thing to you and something else to us.
> I want to make graphs of water consumption. > I have a counter that is incremented for every liter of water consumed, > this counter will be stored in the database and reset every minute. Can you clarify that. I take you mean you'll be reading the counter and updating the RRD file every minute, but does the act of reading the counter reset it to zero or not ? > In the end I would make graphs (bar) to view the water consumption for > each period (eg 5 min, 1 hour, 1 day, 1 month ...) Do you want the bars to match specific time periods - eg have a bar that covers 1st Sept to 30th Sept and so on ? 5 minutes is fairly easy - if your RRD consolidates data to a minimum resolution of 5 minutes then that's what you'll get. But once you get up to days and weeks it gets harder - depending on what you want. Showing a graph of "the last 7 days" or "the last 31 days" is easy. Doing it for "the last calendar week" (Sun -Sat or Mon-Sun) or "last calendar month" (1st to 28th/30th/31st) is somewhat harder. _______________________________________________ rrd-users mailing list rrd-users@lists.oetiker.ch https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
