[rrd-users] invalid unknowns?

[Tobias Oetiker]

Hi Aragon,

Today Aragon Gouveia wrote:

> >
> > Here's some rrdfetch output:
> >
> > $ rrdtool fetch health.rrd AVERAGE -s -52000 -e -50000
> > 1333311120: nan nan nan nan

[...]

> > $ rrdtool fetch health.rrd LAST -s -52000 -e -50000
> > 1333311120: 1.3400000000e+01 2.7000000000e+01 3.0101470417e+00
> > 6.0000000000e+00

[...]

first you are using AVERAGE, then you are using LAST ... what kind
of information do you expect to get from LAST ?

also 'old data going NaN' would mean that the lengh of your RRA is
too short to capture more data ....

cheers
tobi

-- 
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