Matthew Tice wrote :
Hi, I'm wondering if anyone has been successful setting up and graphing an
item that fluctuates between positive and negative values? I'm trying to
trend the temperature of my freezer. When I created the rrd earlier today
(when positive values were generated) the graph was functional. When I put
my sensors inside the freezer (where the temperatures drop a few degrees
below zero F) the values wouldn't drop below zero on the graph.
I tried modifying the current rrd tool with:
rrdtool tune /home/hobbit/data/rrd/tice/freezer.rrd --minimum freezerf:U
Hi,
there's a small bug in hobbitd_rrd 4.2.0 which prevents negative values to
be plotted. You have to upgrade to a snapshot or backport a few
modifications from do_ncv.c : the "l = val + strspn(val, "0123456789.")"
part and the creation arguments of the rrd file.
--
Charles Goyard - user-a6cdca7046e2@xymon.invalid - (+33) 1 45 38 01 31
Orange Business Services - online multimedia // ingénierie