[rrd-users] Re: remove peaks

Tobias Oetiker oetiker at ee.ethz.ch
Wed Aug 17 16:47:26 MEST 2005

Hi Georges,

use DS type DERIVE and set the minimal value to 0 then you will get
one unknown value after a reset.


Today Georges Toth wrote:

> Hi,
> I got a problem with my rrd's.
> They get updated every 5min, with a specific value.
> That value gets incremented til the end of the month, and then gets reset.
> The data is a traffic counter.
> So far so good.
> The problem now is that I get unusual high peaks when that reset occurs.
> If I only had one rrd, I could easily filter those peaks (with setting those
> peaks to UNKN).
> But as I got many rrd's, where the data, and as such those high peaks, are
> very different from each other, I have no clue how I possibly could filter
> peaks from all of my rrd's.
> Another problem is that if I got nearly no traffic, the peak is at a value
> which might be reasonable. So if I filter the peak, and such traffic suddenly
> occurs, I filter the traffic as well.
> I doubt there is a solution for one of either problems.
> But I thought I'd ask anyway :-)
> Thnx for any comments

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