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1.6 KiB

#!/bin/bash
WARNING=( 8 5 2 )
CRITICAL=( 10 8 3 )
while test $# -gt 0; do
case $1 in
(-h|--help) cat <<EOF
$0 [OPTIONS]
OPTIONS
-w, --warning "a b c" set warning threshold for:
a: 1min, b: 5min, c: 15min average
(default: ${WARNING[@]})
-c, --critical "a b c" set critical threshold for:
a: 1min, b: 5min, c: 15min average
(default: ${CRITICAL[@]})
DESCRIPTION
Icinga plugin to check load average per CPU. Shows 1min, 5min 15min
average per CPU. Different to check_load, the load is divided by the
number of CPU units and therefore normalized. So the same warning and
critical levels fit for any server.
EOF
exit;;
(-w|--warning) shift; WARNING=( $1 );;
(-c|--critical) shift; CRITICAL=( $1 );;
esac
if test $# -lt 1; then
echo "ERROR: missing option, try $0 --help"
exit 1
fi
shift
done
a=( $(cut -d' ' -f 1-3 </proc/loadavg) )
echo "before ${a[@]}"
level=0
txt=OK
for ((i=0;i<3;++i)); do
a[$i]=$(bc -l <<< "${a[$i]}/$(nproc)")
if test $level -lt 1 -a $(bc -l <<< "${a[$i]}>${WARNING[$i]}") -eq 1; then
level=1
txt=WARNING
fi
if test $level -lt 2 -a $(bc -l <<< "${a[$i]}>${CRITICAL[$i]}") -eq 1; then
level=2
txt=CRITICAL
fi
done
echo $txt - load average: $(printf '%.2f, %.2f, %.2f|load1=%.3f;%.3f;%.3f;0; load5=%.3f;%.3f;%.3f;0; load15=%.3f;%.3f;%.3f;0;' ${a[@]} ${a[0]} ${WARNING[0]} ${CRITICAL[0]} ${a[1]} ${WARNING[1]} ${CRITICAL[1]} ${a[2]} ${WARNING[2]} ${CRITICAL[2]})
exit $level