[rrd-users] RRD graph step don't match with script step
linux at thehobsons.co.uk
Sun Mar 30 15:40:44 CEST 2008
>My rrd file is fed every 5 minutes, at 00:03, 00:08, 00:13, 00:18, etc.
>But my graph looks like as if the step was at 00:00, 00:05, 00:10, ...
>And so when I make a fetch on the rrd file. (I checked the unix timestamp).
>Does anyone ever see this kind of problem?
It's not a problem, it's correct and documented behavior.
All data is normalised to intervals whose end times are exact
multiple of 'step' since unix epoch (midnight, 1st Jan 1970). RRD
will NOT work to any other schedule of intervals.
00:00, 00:05, 00:10 are all multiples of 300s since unix epoch
00:03, 00:08, 00:13, 00:18 are not
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