102 lines
3.9 KiB
Bash
Executable File
102 lines
3.9 KiB
Bash
Executable File
#! /bin/bash
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# Nagios plugin
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# created 09.01.2011 by symphonic.mushroom@gmail.com
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# modified 04.24.2012 by symphonic.mushroom@gmail.com with the advices from formwandler
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# modified 07.22.2017 by symphonic.mushroom@gmail.com with the help from Toby Wahlers toby@100.rpm.com
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# check if processes matching to a pattern are exceeding a given elapsed time
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# return a Nagios exit code depending on the result
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# 0 = OK
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# 1 = WARNING
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# 2 = CRITICAL
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# 3 = UNKNOWN
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# for help printing
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print_help() {
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echo "This Nagios plugin check if processes matching to a pattern are exceeding a given elapsed time"
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echo "Usage : $0 -p <process_name> -w <seconds> -c <seconds> "
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echo " -p parameter : name of the monitoring process. For granularity, quote commands with spaces."
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echo " -w parameter : minimal elapsed time for status WARNING on NAGIOS, in seconds."
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echo " -c parameter : minimal elapsed time for status CRITICAL on NAGIOS, in seconds."
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echo "returned performance data : number of process; oldest time in minutes; warning time in minutes; critical time in minutes; 0;"
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exit 3
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}
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# check if there is at least one argument
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if [ -z $1 ]
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then echo "Missing arguments"
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echo "try \'$0 --help\' for help"
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exit 3
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fi
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# print help
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if [[ ( $1 = "--help" || $1 = "-h" ) ]]
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then print_help
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exit 3
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fi
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# assign value to arguments
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# print an error in case of unkown argument
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while getopts ":w:c:p:" options
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do
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case $options in
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w ) warning=$OPTARG ;;
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c ) critical=$OPTARG ;;
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p ) proc=$OPTARG ;;
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* ) echo "Unknown argument"
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echo "try \'$0 --help\' for help"
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exit 3 ;;
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esac
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done
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# check if all arguments are present
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if [[ ( -z $warning || -z $critical || -z $proc ) ]]
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then echo "Missing argument"
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echo "try \'$0 --help\' for help"
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exit 3
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fi
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#calculate number of process
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nbproc=$(ps -A -o args | grep -w "$proc" | grep -v $0 | grep -v grep | wc -l)
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if [ $nbproc -gt 0 ]
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then
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#calculate age of oldest process
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ageproc=$(ps -A -o etime,comm,args | grep "$proc" | grep -v $0 | grep -v grep | gawk '{split($1,t,":");split(t[1],td,"-");if (td[2]) {ta=td[1]*86400; t[1]=td[2]} else {ta=0}; if (t[3]) {$1=(t[1]*60+t[2])*60+t[3]+ta} else {$1=t[1]*60+t[2]};if (NR==1) {maxi=$1;} else {if ($1>maxi){maxi=$1;}}};END {print maxi}')
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case $ageproc in
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?|[0-5]? ) maxage=$ageproc" Seconds";;
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??|???|[0-2]???|3[0-5]?? ) maxage=$(($ageproc/60))" Minutes";;
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* ) maxage=$(($ageproc/3600))" Hours "$(($ageproc % 3600 / 60))" minutes";;
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esac
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msg="there are $nbproc process $proc, oldest has got $maxage age"
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perfmaxage=$(($ageproc/60))
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perfdata="Processes=${nbproc:-0} MaxAge=${perfmaxage:-0}Minutes;$(($warning/60));$(($critical/60));0;"
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if [ $ageproc -gt $critical ]
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then echo "CRITICAL: $msg | $perfdata"
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exit 2
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elif [ $ageproc -gt $warning ]
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then echo "WARNING: $msg | $perfdata"
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exit 1
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else echo "OK: $msg | $perfdata"
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exit 0
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fi
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else
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echo "OK: there is no process matching $proc"
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exit 0
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fi
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