I wrote a bash script as a Nagios plugin for monitoring remote load. The script calculates load percentage and puts it in to a variable. With regard test logic it works correctly and if I run the script from command line the load percentage is shown as the output.
So the output that I get from command line is for example: “System load is 7 %”.
The problem: in Nagios the percentage is not shown. In Nagios the service state shows only as “System load is %”. I can get Nagios to only show pre-written output like: “System load is below 50 %”.
Relevant points at the code are:
loadavg=ssh -i $1 $2@$3 "cat /proc/loadavg"
cpus=ssh -i $1 $2@$3 "grep processor /proc/cpuinfo" | grep -c processor
load=echo $loadavg | awk '{ print $1 * 100 }'
final=echo $load/$cpus | bc
…
if $final -lt 50 ]]; then
echo “CPU load is ${final} %” # <- THE PROBLEM: isn’t this supposed to show as for example “CPU load is 7 %” in Nagios?
exit 0;
fi
Out of curiosity, what goes wrong here?
- Hendri
