[rrd-users] False positives with aberrant behavior detection
plonka at doit.wisc.edu
Wed Aug 18 18:48:45 CEST 2010
On Wed, Aug 18, 2010 at 05:57:58PM +0200, Tobias Oetiker wrote:
> Hi Dave,
> > It does seem that the current implementation differs from what I
> > was using in rrdtool c. 2002. My recollection was that there was
> > the ability to widen the confidence band by a parameter and also to
> > have different settings for the upper vs. lower bound offset from
> > the forecast value.
> > BTW, there is another implementation described here:
> > http://www-iepm.slac.stanford.edu/monitoring/forecast/hw.html
> the implementation has not changed except that more features have
> been added ... note that some of the tunables are only accessible
> via rrdtool tune ... (one might consider that to be a non optimal
Cool! That's what I was forgetting. Yes, the --delatneg, --deltapos,
and --failure-threshold are the attributes that I remember setting.
I think this will help Mike out.
plonka at cs.wisc.edu http://net.doit.wisc.edu/~plonka/ Madison, WI
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