[rrd-users] Behavior of 'rrdtool dump' changed after/around 1.3.4? (cdp_prep.value changed from NaN to 0)

Tobias Oetiker tobi at oetiker.ch
Tue Dec 13 16:18:47 CET 2011


Hi Till,

Today Till Dörges wrote:

> On 12.12.2011 20:46, Till Dörges wrote:
>
> > I've been using RRDtool 1.3.4. After updating to 1.4.5 the output of 'rrdtool dump'
> > (and rrdtool info) changed.
>
> What I should add: The source RRD file itself didn't change. Only what 'rrdtool dump'
> produces.
>
> Regards -- Till
>
> > rrdtool dump for 1.3.4 (and earlier afaics) used to give something like this for one
> > of my files:
> >
> > --- snip ---
> >     <cdp_prep>
> >             <ds>
> >             <primary_value> NaN </primary_value>
> >             <secondary_value> NaN </secondary_value>
> >             <value> NaN </value>
> >             <unknown_datapoints> 0 </unknown_datapoints>
> >             </ds>
> > --- snap ---
> >
> > The current version (1.4.5) returns 0 instead of NaN:
> > --- snip ---
> >             <value> 0,0000000000e+00 </value>

this does not look right, especially not the ',' in the number.

can you try with the latest stable snapshot ?

cheers
tobi


> > --- snap ---
> >
> >
> > Is this safe to ignore? (And out of curiosity, what's the meaning of this change?)
> >
> >
> > TIA -- Till :-)
>
>
>

-- 
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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