[rrd-users] Re: rrd creation

Alex van den Bogaerdt alex at slot.hollandcasino.nl
Mon Jul 9 15:44:55 MEST 2001

Joerg Hartmann wrote:
> /usr/local/rrdtool/bin/rrdtool create all.rrd --step 30  \
> 	DS:test:COUNTER:60:U:U  \
> 	RRA:AVERAGE:0.5:1:10
> why are there nearly 3000 timeslots in this initial rrd ?
> /usr/local/rrdtool/bin/rrdtool fetch all.rrd AVERAGE  | wc -l
> 	   2884

You are asking for the defaults of "now-1d" to "now" which is
86400/30=2880 rows.

There aren't that many entries in the database.  All but ten will
be "filled" (not really) with unknowns.

Verify this with either "rrdtool info" or "rrdtool dump".

> And as i tried to do the examples from the rrdtutorial i found that i 
> can not create rrd's with timestamps so much in the past (978300900)

??? It works for me.  What version are you using?  And how?  Please
modify your rrdtool create command so that it includes the start time
and retry / repost.

 / alex at slot.hollandcasino.nl                  alex at ergens.op.het.net \
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