[rrd-users] Re: MAX doesn't work as expected: peaks are filtered

Alex van den Bogaerdt alex at ergens.op.het.net
Mon Aug 16 11:21:34 MEST 2004

On Mon, Aug 16, 2004 at 10:40:47AM +0200, Cristian Ghezzi wrote:
> Thank you for your prompt answer and sorry for sounding so negative.
> I actually like rrdtool and I'm using it in my work.
> Still I find it counter-intuitive sometimes, as shown in my example.
> I would expect rrdtool to gather different kinds of PDPs to be used by 
> different kinds of CFs, so that I could have one database with 2 RRAs, 
> one of them using AVERAGE and the other one using MAX, with a step of 
> 300, and everything working properly because one PDP would hold the 
> average value to be fed to the first RRA, while the other PDP would hold 
> the maximum value to be fed to the second RRA.
> Using "--step 1" would not be the best solution, but just a hack.

You want one-second precision, you are going to have to use "--step 1".
That is not a hack, that is a configuration item.


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