[rrd-users] Re: RRA resize problem

Alex van den Bogaerdt alex at slot.hollandcasino.nl
Tue Oct 23 23:37:31 MEST 2001

Ytsejam wrote:

[after resizing]
> Now becones:
> rra             5minAve        AVERAGE:0.5:1:2880
> rra             30minAve        AVERAGE:0.5:6:2880
> rra             2hrAve          AVERAGE:0.5:24:3600
> rra             2hrMax          MAX:0.5:24:3600
> rra             1dayAve         AVERAGE:0.5:288:600
> rra             1dayMax         MAX:0.5:288:600

> I use cricket to grap the flow chart.
> but after resize the RRA[2] RRA[3] , some of my data has lost in
> images, but still exist in XML when I dump the rrd.

If you don't specify start and end times that correspond with the
actual values that rrdtool will graph eventually, it will select an
RRA with a higher resolution.  For instance: if you ask for
end == Tue Oct 23 23:34:22 CEST 2001 and start == end - 7d, you
will not see data from the 2hr RRA.  I think it will use the 5 minute
RRA in this case and this RRA doesn't contain the desired information.

> my images shows no data before Oct 22 but there do have data since Oct 10 in the dumped XML file.

Try querying with start=1002715200 and end=start+24d.
Then try the same command but now with start=1002715500.

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