[rrd-users] Re: rrdtool fetch with computed resolution

Sven Ubik ubik at cesnet.cz
Fri Aug 4 10:15:56 MEST 2006

Hi Alex,

I am not sure about your question. Are you asking why I want to fetch data
with arbitrary time resolutions?

It is interesting to see dynamics of network characteristics in different
timescales. RRD file can store statistics in only a limited set of time
resolutions, which are fixed and cannot be changed later. Why not to
compute statistics over different time resolutions than those directly
stored in RRD files?




On Thu, 3 Aug 2006, Alex van den Bogaerdt wrote:

> On Thu, Aug 03, 2006 at 12:47:06PM +0200, Sven Ubik wrote:
> >
> > I assume from RRD documentation that it should be possible to fetch
> > data with arbitrary time resolution (-r argument), not only with one
> > of time resolutions stored in RRD files, provided that:
> >
> >    1. both start and end time are a multiple of requested resolution
> >    2. both start and end time are within the desired RRA
> How? Why?
> --
> Alex van den Bogaerdt
> http://www.vandenbogaerdt.nl/rrdtool/

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