[rrd-users] counting errors in rrd
snotling at gmail.com
Thu Mar 3 17:40:17 CET 2011
I have a single RRD file that has the value 100 in places. Whenever my
monitoring sees an error (probes every 5 mins), it pushes a 100 into an rrd
file. I am trying to figure out how many times this value is in a given
rrdtool graph images/error.gif -a PNG --start $start --end $end
Shows a nice graph, with a few yellow strips. I can then overlay this on,
response times, or anything else.
But to count up the number of errors, I seem to not be able to do. Any help
would be great.
I have tried doing a few things with CDEF and VDEF to get the count, like:
CDEF:foo=yellowhours,yellowhours,/ <-- to get the the values in the array
set to one. - should make adding up the array easy.
VDEF:max=foo,TOTAL <-- hopefully to get the total of everything in the foo
array.. after reading what TOTAL is, this did not work. I thought I might do
something like max=foo,TOTAL,<stepsize>,/ and divide the value by the
stepsize, but I get : Unknown function string 'TOTAL,180,/
I was thinking about use Sort on the array and when I see a 0, Push up a
count - but I am not sure how many values will be in the array.
Thanks for any advise on how to proceed.
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