[rrd-developers] Re: Data Loss on non-contiguous updates

[Tobias Oetiker]

Hi Lee,

> "--step",300,
>               "DS:a:GAUGE:300:U:U",
>               "RRA:AVERAGE:0.99999:1:300",
>               "RRA:MIN:0.5:12:300",
>               "RRA:MAX:0.5:12:300",
>   );
>
> So with a heartbeat of 1 sample (300), I was hoping
> RRD would record the first sample.  Changing the
> heartbeat to 0 or 1 didn't help.  Neither did setting
> the RRA:AVERAGE to RRA:LAST.

no, the heartbeat just defines how long rrdtool will asume your
updates are continuous ...

> A good ehancement would be an extension to the
> rrd-beginners docs for programatic examples on how to
> program the restart of collector deamons with an eye
> towards preserving samples.

if you have any updates to the documentation (the *.pod files)
please send them my way, often a line or two or just a word in the
right place can make things much clearer ...

cheers
tobi

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