[rrd-users] rrdtool fetch boundaries

Alex van den Bogaerdt alex at vandenbogaerdt.nl
Wed Sep 21 14:09:43 CEST 2011

> Hi All
> I'm extracting statistics from lots of rrds using rrdtool fetch, but it
> seems like
> fetch is rather fuzzy about the -s and -e settings

A combination of unfortunate accidents with programming off-by-one errors
and people not understanding the fencepost error

What usually helps is to ask for {$start_you_want}+{$offset} to
{$end_you_want}-{$offset} where offset is choosen such a way that it does
not make another RRA more suitable. Generally speaking "1" is already


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