[rrd-users] Re: Collecting one-per-day values

Alex van den Bogaerdt alex at slot.hollandcasino.nl
Tue Jul 24 18:28:48 MEST 2001

skantner at dsscorp.com wrote:

> I need to record values in an RRD that occur once per day, and subsequently
> graph those values over the course of a year.  Given the following set of
> sample values, I am getting rather unexpected (to me!) results as shown - I
> am getting an unexpected non-zero value, and all of the timestamps are
> offset 20 hours.   I have fiddled with the step and hearbeat quite a bit
> without much success.  Where have I gone wrong?

This has been discussed in detail.  Please search the archives,
the docs and the FAQ (faq.mrtg.org) while focussing on resampling,
normalisation and consolidation.  The main cause of your problem is
that the day is *not* specified in *your specific* local time zone.
It can't be like that for two reasons.  1) Not everybody lives in
the same timezone and 2) the offset for most (if not all) timezones
is not a constant.

I'm sure you'll find several items relating to your problem.  If any
questions remain after this, please don't hesitate to ask a more
specific question.

 / alex at slot.hollandcasino.nl                  alex at ergens.op.het.net \
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| http://faq.mrtg.org/                                                 |
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