[rrd-users] Tutorial Question

[Alex van den Bogaerdt]

> Today Steve Shipway wrote:
>
>> I think the tutorial was written for RRDTool 1.3 or earlier, in
>> 1.4 the fetch behaviour changed slightly to take the 'fence post'
>> from the other end... so the tutorial needs updating.  Tobi can
>> probably give a more precise answer...
>
> fetch gives you data to cover the time range you requested and then
> some ... the 'some' bit has changed over the releases, but the
> principle is always the same ...

I believe the "and then some" should only be applied when necessary, and I
don't see any reason in the case at hand?

Both start and end time can be matched exactly, there is no graph (it is
"fetch", not "graph") so there is no need for extra data.

Providing one extra row "just to be sure" is not the same principle. It is
different, unnecessary and not what the user asks nor he wants.