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

[Tobias Oetiker]

Hi Wouter,

Today Wouter van Eekelen wrote:

> 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.

:-) it could ... especially if someone was to implement a --verbose
switch which would enable such errors ...

cheers
tobi

>
> 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
> >
>

-- 
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