[rrd-users] Re: rrdtool missed values <1.0

[Tobias Oetiker]

Hi Thomas,

> so how i supposed it works:
> i set stepsize=heartbeat (was the 61 instead of 60 the problem?)
> update everytime i get a value (wich is irregular) and don't update
> when i have no value.
> all values that are missed are regarded as NaN, which is intended.
> is it chance, that the values <1.0 are missed and i don't see the real problem?

heartbeat is a sort of failsave against accepting values which are
too fahr apart ... if you expect to get a value every 5 minutes (on
average), but are not sure that you will always get an update in under 5
minutes you would set the heartbeat to maybe 7 minutes so that even
when the updates arive a bit late they would still be accepted ...

cheers
tobi
-- 
Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten
http://tobi.oetiker.ch tobi at oetiker.ch ++41 62 213 9902

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