[rrd-users] Re: 'Trapping' Values?
spiegela at gmail.com
Mon Mar 14 21:17:38 MET 2005
You will probably want to check out the aberrant behavior detection
features available in development snapshots.
> Just wondering if anyone has written a script that compares, say teh current
> value in the RRD against the previous, and if it is twice the value, to
> create an alert or something similar?
Something like this can be implemented pretty easily in perl, by
fetching out the values you want to compare. You can also craft a
CDEF to do the math for you, and use "rrdtool xport" to show you the
value. A CDEF that checks DEF "a" for this would look something like:
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