On Wed, Jul 06, 2005 at 05:24:37PM +0200, Wolfgang Schrimm wrote:
Hi Wolfgang.
> Hello Andreas,
> 
> you have to give an appropriate maxrows parameter. The default is 400.
> 
> That's because xport uses logic from the graph command where the step 
> size is choosen based on the width of the graph.
> 
> With the default maxrows value and your start and end values you get:
> 
> 365 x 24 x 3,600 = 31,536,000 (seconds)
> 31,536,000 / 400 = 78,840 (step size)
> rounded to a multiple of 300 is 78900
Your are right. Running rrdtool xport with --maxrows -which can be calculated
from a given start, stop and step- does the trick.

> PS: xport is available in the perl module (try the shared-demo.pl in the 
> examples directory)
Ooops. Missed that I was only looking through man 3 RRDs and didn't found an
entry for RRDs::xport.

Thanks,

Andreas.

-- 
Dipl.-Ing. Andreas Maus             science+computing ag
System Administration               Hagellocher Weg 71-75
mail: a.maus@science-computing.de   72070 Tuebingen, Germany
tel.: +49 7071 9457 456             www.science-computing.de

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