[collectd] feeding "unknown" values to the rrdtool writer from my plugin

Andreas Schuldei andreas at schuldei.org
Wed Mar 15 10:41:04 CET 2017


i would like to be able to feed the rrdtool backend the "unknown" value at
appropriate times.

my plugin is written in perl, and i read collecd uses the rrdlib - but i
find different notations when looking for the right way to say "unknown".

What is the correct notation in my perl plugin for unknown values, so that
rrdtool does the right thing?
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