[rrd-users] RRDTool not accepting any updates (NaN instead)

[Wouter van Eekelen]

That works a lot better indeed. Is there a reason updatev can't output such
information?
If it would just tell me 'mrhb expired, assuming nan' I would have solved
this way faster.

On Sat, Dec 4, 2010 at 10:08 PM, Tobias Oetiker <tobi at oetiker.ch> wrote:

> Wouter,
>
> Today Wouter van Eekelen wrote:
>
> > Aren't my updates incremental? The second update has quite a higher value
> > than the first one, yet it's still NaN.
>
> it seems to me that you have set the mrhb to 5 seconds ... while
> the step size is 60 seconds ... this is possible but it requires
> you to update the rrd at least every 5 seconds ...
>
> cheers
> tobi
>
> >
> > On Sat, Dec 4, 2010 at 9:23 PM, Steve Shipway <s.shipway at auckland.ac.nz
> >wrote:
> >
> > >   Your DS are of type 'derive', with a minimum value of 0.  'Derive'
> > > stores the rate of change of the variable, IE (( x -
> x(prev))/(t-t(prev)))
> > > This means you'll need at least two sequential updates, which must be
> > > increasing (in order to get a valid positive derivitive) before you'll
> see
> > > anything stored in the RRAs.  Since your step is 60s, this means two
> > > increasing updates about 1min apart, and more than 2 (4, 13, 145) if
> you
> > > want any of the RRAs with a cdp of more than 1 to show a value (since
> your
> > > XFF is 0.5).
> > >
> > > Steve
> > >
> > >  *Steve Shipway*
> > > University of Auckland ITS
> > > *UNIX Systems Design Lead*
> > > s.shipway at auckland.ac.nz
> > > Ph: +64 9 373 7599 ext 86487
> > > **
> > >   ------------------------------
> > > *From:* rrd-users-bounces+s.shipway=auckland.ac.nz at lists.oetiker.ch
> [rrd-users-bounces+s.shipway=
> > > auckland.ac.nz at lists.oetiker.ch] on behalf of Wouter van Eekelen [
> > > wouter.van.eekelen at serverffs.com]
> > > *Sent:* Sunday, 5 December 2010 8:09 a.m.
> > > *To:* rrd-users at lists.oetiker.ch
> > > *Subject:* [rrd-users] RRDTool not accepting any updates (NaN instead)
> > >
> > >  I'm having a huge trouble with RRDtool, all updates I'm doing are
> > > accepted as 'NaN'
> > > Here is are all commands with output:
> > >
> > >
> >
>
> --
> Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
> http://it.oetiker.ch tobi at oetiker.ch ++41 62 775 9902 / sb: -9900
>
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