Need to use a fixed value

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Chrysalis
Cacti User
Posts: 69
Joined: Fri Sep 19, 2008 10:14 am
Location: UK

Need to use a fixed value

#1 Post by Chrysalis » Fri Nov 08, 2019 7:54 pm

So I am trying to use a fixed value of 100

Trying to avoid fetching a value from a data source as it seems stupid to be using a data source to get a fixed number.
If I enter a fixed number in something like CDEF or VDEF its rejected as invalid by rrdtool.
If I try to use zero to get there in CDEF so e.g. 0+100, or variable/0+100, I end up with NaN as a value as it seems cacti cannot work with values of zero in any part of its calculations.

So whats the solution other than making a dummy data source that always supplies the number 100?

Also I tried setting max graph value to 100 and using the CDEF special function max graph limit, but that also makes rrdtool reject saying 100 is invalid input.

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