[rrd-users] cant get a picture from my rrd db
linux at thehobsons.co.uk
Sun Feb 3 00:06:41 CET 2008
>i have a few qustion about why in the value i see 6.38479 float number?
>and not the data i insert witch is an intger and i see it in last_ds
See http://www.vandenbogaerdt.nl/rrdtool/process.php where
normalisation is explained. You will only get out exactly what you
put in under certain very specific conditions which are :
1) You must insert data on timestamps which are EXACTLY a multiple of
the step size since unix epoch (midnight, 1st Jan 1970)
2) You extract the data such that you ask for EXACTLY one data point
per output (eg graph pixel)
If either of these is not met then the data will be normalised to fit
what you ask for and will not match the values you put in.
>second why i keep getting 0X0
>when i use the graph?
What do you mean by 0X0 ?
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