mirror of
https://github.com/opinkerfi/nagios-plugins.git
synced 2024-12-22 17:13:52 +01:00
Added check_cpu.sh to nagios-plugins
This commit is contained in:
Tómas Edwardsson
parent
d0a41a5f4b
commit
948eda1734
192
check_cpu.sh/trunk/check_cpu.sh
Executable file
192
check_cpu.sh/trunk/check_cpu.sh
Executable file
@ -0,0 +1,192 @@
|
||||
#!/bin/sh
|
||||
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation; either version 2 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software
|
||||
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
|
||||
PROGNAME=`basename $0`
|
||||
VERSION="Version 1.0,"
|
||||
AUTHOR="2009, Mike Adolphs (http://www.matejunkie.com/)"
|
||||
|
||||
ST_OK=0
|
||||
ST_WR=1
|
||||
ST_CR=2
|
||||
ST_UK=3
|
||||
|
||||
interval=1
|
||||
|
||||
print_version() {
|
||||
echo "$VERSION $AUTHOR"
|
||||
}
|
||||
|
||||
print_help() {
|
||||
print_version $PROGNAME $VERSION
|
||||
echo ""
|
||||
echo "$PROGNAME is a Nagios plugin to monitor CPU utilization. It makes"
|
||||
echo "use of /proc/stat and calculates it through Jiffies rather than"
|
||||
echo "using another frontend tool like iostat or top."
|
||||
echo "When using optional warning/critical thresholds all values except"
|
||||
echo "idle are aggregated and compared to the thresholds. There's"
|
||||
echo "currently no support for warning/critical thresholds for specific"
|
||||
echo "usage parameters."
|
||||
echo ""
|
||||
echo "$PROGNAME [-i/--interval] [-w/--warning] [-c/--critical]"
|
||||
echo ""
|
||||
echo "Options:"
|
||||
echo " --interval|-i)"
|
||||
echo " Defines the pause between the two times /proc/stat is being"
|
||||
echo " parsed. Higher values could lead to more accurate result."
|
||||
echo " Default is: 1 second"
|
||||
echo " --warning|-w)"
|
||||
echo " Sets a warning level for CPU user. Default is: off"
|
||||
echo " --critical|-c)"
|
||||
echo " Sets a critical level for CPU user. Default is: off"
|
||||
exit $ST_UK
|
||||
}
|
||||
|
||||
while test -n "$1"; do
|
||||
case "$1" in
|
||||
--help|-h)
|
||||
print_help
|
||||
exit $ST_UK
|
||||
;;
|
||||
--version|-v)
|
||||
print_version $PROGNAME $VERSION
|
||||
exit $ST_UK
|
||||
;;
|
||||
--interval|-i)
|
||||
interval=$2
|
||||
shift
|
||||
;;
|
||||
--warning|-w)
|
||||
warn=$2
|
||||
shift
|
||||
;;
|
||||
--critical|-c)
|
||||
crit=$2
|
||||
shift
|
||||
;;
|
||||
*)
|
||||
echo "Unknown argument: $1"
|
||||
print_help
|
||||
exit $ST_UK
|
||||
;;
|
||||
esac
|
||||
shift
|
||||
done
|
||||
|
||||
val_wcdiff() {
|
||||
if [ ${warn} -gt ${crit} ]
|
||||
then
|
||||
wcdiff=1
|
||||
fi
|
||||
}
|
||||
|
||||
get_cpuvals() {
|
||||
tmp1_cpu_user=`grep -m1 '^cpu' /proc/stat|awk '{print $2}'`
|
||||
tmp1_cpu_nice=`grep -m1 '^cpu' /proc/stat|awk '{print $3}'`
|
||||
tmp1_cpu_sys=`grep -m1 '^cpu' /proc/stat|awk '{print $4}'`
|
||||
tmp1_cpu_idle=`grep -m1 '^cpu' /proc/stat|awk '{print $5}'`
|
||||
tmp1_cpu_iowait=`grep -m1 '^cpu' /proc/stat|awk '{print $6}'`
|
||||
tmp1_cpu_irq=`grep -m1 '^cpu' /proc/stat|awk '{print $7}'`
|
||||
tmp1_cpu_softirq=`grep -m1 '^cpu' /proc/stat|awk '{print $8}'`
|
||||
tmp1_cpu_total=`expr $tmp1_cpu_user + $tmp1_cpu_nice + $tmp1_cpu_sys + \
|
||||
$tmp1_cpu_idle + $tmp1_cpu_iowait + $tmp1_cpu_irq + $tmp1_cpu_softirq`
|
||||
|
||||
sleep $interval
|
||||
|
||||
tmp2_cpu_user=`grep -m1 '^cpu' /proc/stat|awk '{print $2}'`
|
||||
tmp2_cpu_nice=`grep -m1 '^cpu' /proc/stat|awk '{print $3}'`
|
||||
tmp2_cpu_sys=`grep -m1 '^cpu' /proc/stat|awk '{print $4}'`
|
||||
tmp2_cpu_idle=`grep -m1 '^cpu' /proc/stat|awk '{print $5}'`
|
||||
tmp2_cpu_iowait=`grep -m1 '^cpu' /proc/stat|awk '{print $6}'`
|
||||
tmp2_cpu_irq=`grep -m1 '^cpu' /proc/stat|awk '{print $7}'`
|
||||
tmp2_cpu_softirq=`grep -m1 '^cpu' /proc/stat|awk '{print $8}'`
|
||||
tmp2_cpu_total=`expr $tmp2_cpu_user + $tmp2_cpu_nice + $tmp2_cpu_sys + \
|
||||
$tmp2_cpu_idle + $tmp2_cpu_iowait + $tmp2_cpu_irq + $tmp2_cpu_softirq`
|
||||
|
||||
diff_cpu_user=`echo "${tmp2_cpu_user} - ${tmp1_cpu_user}" | bc -l`
|
||||
diff_cpu_nice=`echo "${tmp2_cpu_nice} - ${tmp1_cpu_nice}" | bc -l`
|
||||
diff_cpu_sys=`echo "${tmp2_cpu_sys} - ${tmp1_cpu_sys}" | bc -l`
|
||||
diff_cpu_idle=`echo "${tmp2_cpu_idle} - ${tmp1_cpu_idle}" | bc -l`
|
||||
diff_cpu_iowait=`echo "${tmp2_cpu_iowait} - ${tmp1_cpu_iowait}" | bc -l`
|
||||
diff_cpu_irq=`echo "${tmp2_cpu_irq} - ${tmp1_cpu_irq}" | bc -l`
|
||||
diff_cpu_softirq=`echo "${tmp2_cpu_softirq} - ${tmp1_cpu_softirq}" \
|
||||
| bc -l`
|
||||
diff_cpu_total=`echo "${tmp2_cpu_total} - ${tmp1_cpu_total}" | bc -l`
|
||||
|
||||
cpu_user=`echo "scale=2; (1000*${diff_cpu_user}/${diff_cpu_total}+5)/10" \
|
||||
| bc -l | sed 's/^\./0./'`
|
||||
cpu_nice=`echo "scale=2; (1000*${diff_cpu_nice}/${diff_cpu_total}+5)/10" \
|
||||
| bc -l | sed 's/^\./0./'`
|
||||
cpu_sys=`echo "scale=2; (1000*${diff_cpu_sys}/${diff_cpu_total}+5)/10" \
|
||||
| bc -l | sed 's/^\./0./'`
|
||||
cpu_idle=`echo "scale=2; (1000*${diff_cpu_idle}/${diff_cpu_total}+5)/10" \
|
||||
| bc -l | sed 's/^\./0./'`
|
||||
cpu_iowait=`echo "scale=2; (1000*${diff_cpu_iowait}/${diff_cpu_total}+5)\\
|
||||
/10" | bc -l | sed 's/^\./0./'`
|
||||
cpu_irq=`echo "scale=2; (1000*${diff_cpu_irq}/${diff_cpu_total}+5)/10" \
|
||||
| bc -l | sed 's/^\./0./'`
|
||||
cpu_softirq=`echo "scale=2; (1000*${diff_cpu_softirq}/${diff_cpu_total}\\
|
||||
+5)/10" | bc -l | sed 's/^\./0./'`
|
||||
cpu_total=`echo "scale=2; (1000*${diff_cpu_total}/${diff_cpu_total}+5)\\
|
||||
/10" | bc -l | sed 's/^\./0./'`
|
||||
cpu_usage=`echo "(${cpu_user}+${cpu_nice}+${cpu_sys}+${cpu_iowait}+\\
|
||||
${cpu_irq}+${cpu_softirq})/1" | bc`
|
||||
}
|
||||
|
||||
do_output() {
|
||||
output="user: ${cpu_user}, nice: ${cpu_nice}, sys: ${cpu_sys}, \
|
||||
iowait: ${cpu_iowait}, irq: ${cpu_irq}, softirq: ${cpu_softirq} \
|
||||
idle: ${cpu_idle}"
|
||||
}
|
||||
|
||||
do_perfdata() {
|
||||
perfdata="'user'=${cpu_user} 'nice'=${cpu_nice} 'sys'=${cpu_sys} \
|
||||
'softirq'=${cpu_softirq} 'iowait'=${cpu_iowait} 'irq'=${cpu_irq} \
|
||||
'idle'=${cpu_idle}"
|
||||
}
|
||||
|
||||
if [ -n "$warn" -a -n "$crit" ]
|
||||
then
|
||||
val_wcdiff
|
||||
if [ "$wcdiff" = 1 ]
|
||||
then
|
||||
echo "Please adjust your warning/critical thresholds. The warning\\
|
||||
must be lower than the critical level!"
|
||||
exit $ST_UK
|
||||
fi
|
||||
fi
|
||||
|
||||
get_cpuvals
|
||||
do_output
|
||||
do_perfdata
|
||||
|
||||
if [ -n "$warn" -a -n "$crit" ]
|
||||
then
|
||||
if [ "$cpu_usage" -ge "$warn" -a "$cpu_usage" -lt "$crit" ]
|
||||
then
|
||||
echo "WARNING - ${output} | ${perfdata}"
|
||||
exit $ST_WR
|
||||
elif [ "$cpu_usage" -ge "$crit" ]
|
||||
then
|
||||
echo "CRITICAL - ${output} | ${perfdata}"
|
||||
exit $ST_CR
|
||||
else
|
||||
echo "OK - ${output} | ${perfdata}"
|
||||
exit $ST_OK
|
||||
fi
|
||||
else
|
||||
echo "OK - ${output} | ${perfdata}"
|
||||
exit $ST_OK
|
||||
fi
|
||||
Loading…
Reference in New Issue
Block a user