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