bundles/sshmon: use own check_cpu_stats script
Old script only checked iowait, which is not enough.
This commit is contained in:
parent
c185a5bacd
commit
b6d23aaed4
GPG key ID:
12E3D2136B818350
1 changed files with 48 additions and 173 deletions
|
|
@ -1,184 +1,59 @@
|
|||
#!/bin/bash
|
||||
# ========================================================================================
|
||||
# CPU Utilization Statistics plugin for Nagios
|
||||
#
|
||||
# Written by : Steve Bosek
|
||||
# Patched by : Bas van der Doorn
|
||||
# Release : 2.2
|
||||
# Creation date : 8 September 2007
|
||||
# Revision date : 23 November 2008
|
||||
# Package : DTB Nagios Plugin
|
||||
# Description : Nagios plugin (script) to check cpu utilization statistics.
|
||||
# This script has been designed and written on Unix plateform (Linux, Aix, Solaris),
|
||||
# requiring iostat as external program. The locations of these can easily
|
||||
# be changed by editing the variables $IOSTAT at the top of the script.
|
||||
# The script is used to query 4 of the key cpu statistics (user,system,iowait,idle)
|
||||
# at the same time. Note though that there is only one set of warning
|
||||
# and critical values for iowait percent.
|
||||
#
|
||||
# Usage : ./check_cpu_stats.sh [-w <warn>] [-c <crit] ( [ -i <intervals in second> ] [ -n <report number> ])
|
||||
# ----------------------------------------------------------------------------------------
|
||||
#
|
||||
# TODO: Support for HP-UX
|
||||
#
|
||||
#
|
||||
# ========================================================================================
|
||||
#
|
||||
# HISTORY :
|
||||
# Release | Date | Authors | Description
|
||||
# --------------+---------------+---------------+------------------------------------------
|
||||
# 2.0 | 16.02.08 | Steve Bosek | Solaris support and new parameters
|
||||
# | | | New Parameters : - iostat seconds intervals
|
||||
# | | | - iostat report number
|
||||
# 2.1 | 08.06.08 | Steve Bosek | Bug perfdata and convert comma in point for Linux result
|
||||
# 2.1.1 | 20.11.08 | Bas van der Doorn | Fixed improperly terminated string
|
||||
# 2.1.2 | 23.11.08 | Bas van der Doorn | Fixed linux steal reported as idle, comparisons
|
||||
# 2.2 | 23.11.08 | Bas van der Doorn | Capable systems will output nice and steal data
|
||||
# -----------------------------------------------------------------------------------------
|
||||
#
|
||||
# =========================================================================================
|
||||
#!/usr/bin/env python3
|
||||
|
||||
# Paths to commands used in this script. These may have to be modified to match your system setup.
|
||||
from re import findall
|
||||
from subprocess import check_output
|
||||
from sys import exit
|
||||
|
||||
IOSTAT=/usr/bin/iostat
|
||||
try:
|
||||
top_output = check_output("top -b -n1 -d1 | grep -i '^\%cpu'", shell=True).decode('UTF-8').split(': ', 2)[1].strip()
|
||||
|
||||
# Nagios return codes
|
||||
STATE_OK=0
|
||||
STATE_WARNING=1
|
||||
STATE_CRITICAL=2
|
||||
STATE_UNKNOWN=3
|
||||
cpu_usage = {}
|
||||
for value, identifier in findall('([0-9\.\,]{3,5}) ([a-z]{2})', top_output):
|
||||
cpu_usage[identifier] = float(value.replace(',', '.'))
|
||||
|
||||
# Plugin parameters value if not define
|
||||
WARNING_THRESHOLD=${WARNING_THRESHOLD:="30"}
|
||||
CRITICAL_THRESHOLD=${CRITICAL_THRESHOLD:="100"}
|
||||
INTERVAL_SEC=${INTERVAL_SEC:="1"}
|
||||
NUM_REPORT=${NUM_REPORT:="3"}
|
||||
warn = set()
|
||||
crit = set()
|
||||
|
||||
# Plugin variable description
|
||||
PROGNAME=$(basename $0)
|
||||
RELEASE="Revision 2.1.1"
|
||||
AUTHOR="(c) 2008 Steve Bosek (steve.bosek@gmail.com)"
|
||||
print(top_output)
|
||||
|
||||
if [ ! -x $IOSTAT ]; then
|
||||
echo "UNKNOWN: iostat not found or is not executable by the nagios user."
|
||||
exit $STATE_UNKNOWN
|
||||
fi
|
||||
# steal
|
||||
if cpu_usage['st'] > 5:
|
||||
crit.add('CPU steal is {}% (>5%)'.format(cpu_usage['st']))
|
||||
elif cpu_usage['st'] > 2:
|
||||
warn.add('CPU steal is {}% (>2%)'.format(cpu_usage['st']))
|
||||
|
||||
# Functions plugin usage
|
||||
print_release() {
|
||||
echo "$RELEASE $AUTHOR"
|
||||
}
|
||||
# iowait
|
||||
if cpu_usage['wa'] > 60:
|
||||
crit.add('IOwait is {}% (>60%)'.format(cpu_usage['wa']))
|
||||
elif cpu_usage['wa'] > 30:
|
||||
warn.add('IOwait is {}% (>30%)'.format(cpu_usage['wa']))
|
||||
|
||||
print_usage() {
|
||||
echo ""
|
||||
echo "$PROGNAME $RELEASE - CPU Utilization check script for Nagios"
|
||||
echo ""
|
||||
echo "Usage: check_cpu_stats.sh -w -c (-i -n)"
|
||||
echo ""
|
||||
echo " -w Warning level in % for cpu iowait"
|
||||
echo " -c Crical level in % for cpu iowait"
|
||||
echo " -i Interval in seconds for iostat (default : 1)"
|
||||
echo " -n Number report for iostat (default : 3)"
|
||||
echo " -h Show this page"
|
||||
echo ""
|
||||
echo "Usage: $PROGNAME"
|
||||
echo "Usage: $PROGNAME --help"
|
||||
echo ""
|
||||
}
|
||||
|
||||
print_help() {
|
||||
print_usage
|
||||
echo ""
|
||||
echo "This plugin will check cpu utilization (user,system,iowait,idle in %)"
|
||||
echo ""
|
||||
exit 0
|
||||
}
|
||||
|
||||
# Parse parameters
|
||||
while [ $# -gt 0 ]; do
|
||||
case "$1" in
|
||||
-h | --help)
|
||||
print_help
|
||||
exit $STATE_OK
|
||||
;;
|
||||
-v | --version)
|
||||
print_release
|
||||
exit $STATE_OK
|
||||
;;
|
||||
-w | --warning)
|
||||
shift
|
||||
WARNING_THRESHOLD=$1
|
||||
;;
|
||||
-c | --critical)
|
||||
shift
|
||||
CRITICAL_THRESHOLD=$1
|
||||
;;
|
||||
-i | --interval)
|
||||
shift
|
||||
INTERVAL_SEC=$1
|
||||
;;
|
||||
-n | --number)
|
||||
shift
|
||||
NUM_REPORT=$1
|
||||
;;
|
||||
*) echo "Unknown argument: $1"
|
||||
print_usage
|
||||
exit $STATE_UNKNOWN
|
||||
;;
|
||||
esac
|
||||
shift
|
||||
done
|
||||
|
||||
# CPU Utilization Statistics Unix Plateform ( Linux,AIX,Solaris are supported )
|
||||
case `uname` in
|
||||
Linux ) CPU_REPORT=`iostat -c $INTERVAL_SEC $NUM_REPORT | sed -e 's/,/./g' | tr -s ' ' ';' | sed '/^$/d' | tail -1`
|
||||
CPU_REPORT_SECTIONS=`echo ${CPU_REPORT} | grep ';' -o | wc -l`
|
||||
CPU_USER=`echo $CPU_REPORT | cut -d ";" -f 2`
|
||||
CPU_NICE=`echo $CPU_REPORT | cut -d ";" -f 3`
|
||||
CPU_SYSTEM=`echo $CPU_REPORT | cut -d ";" -f 4`
|
||||
CPU_IOWAIT=`echo $CPU_REPORT | cut -d ";" -f 5`
|
||||
CPU_IOWAIT_MAJOR=`echo $CPU_IOWAIT | cut -d "." -f 1`
|
||||
if [ ${CPU_REPORT_SECTIONS} -ge 6 ]; then
|
||||
CPU_STEAL=`echo $CPU_REPORT | cut -d ";" -f 6`
|
||||
CPU_IDLE=`echo $CPU_REPORT | cut -d ";" -f 7`
|
||||
NAGIOS_DATA="user=${CPU_USER}% system=${CPU_SYSTEM}% iowait=${CPU_IOWAIT}% idle=${CPU_IDLE}% nice=${CPU_NICE}% steal=${CPU_STEAL}% | CpuUser=${CPU_USER};CpuSystem=${CPU_SYSTEM};CpuIoWait=${CPU_IOWAIT};CpuIdle=${CPU_IDLE};CpuNice=${CPU_NICE};CpuSteal=${CPU_STEAL};$WARNING_THRESHOLD;$CRITICAL_THRESHOLD"
|
||||
else
|
||||
CPU_IDLE=`echo $CPU_REPORT | cut -d ";" -f 6`
|
||||
NAGIOS_DATA="user=${CPU_USER}% system=${CPU_SYSTEM}% iowait=${CPU_IOWAIT}% idle=${CPU_IDLE}% nice=${CPU_NICE}% | CpuUser=${CPU_USER};CpuSystem=${CPU_SYSTEM};CpuIoWait=${CPU_IOWAIT};CpuIdle=${CPU_IDLE};CpuNice=${CPU_NICE};$WARNING_THRESHOLD;$CRITICAL_THRESHOLD"
|
||||
fi
|
||||
;;
|
||||
AIX ) CPU_REPORT=`iostat -t $INTERVAL_SEC $NUM_REPORT | sed -e 's/,/./g'|tr -s ' ' ';' | tail -1`
|
||||
CPU_USER=`echo $CPU_REPORT | cut -d ";" -f 4`
|
||||
CPU_SYSTEM=`echo $CPU_REPORT | cut -d ";" -f 5`
|
||||
CPU_IOWAIT=`echo $CPU_REPORT | cut -d ";" -f 7`
|
||||
CPU_IOWAIT_MAJOR=`echo $CPU_IOWAIT | cut -d "." -f 1`
|
||||
CPU_IDLE=`echo $CPU_REPORT | cut -d ";" -f 6`
|
||||
NAGIOS_DATA="user=${CPU_USER}% system=${CPU_SYSTEM}% iowait=${CPU_IOWAIT}% idle=${CPU_IDLE}% | CpuUser=${CPU_USER};CpuSystem=${CPU_SYSTEM};CpuIoWait=${CPU_IOWAIT};CpuIdle=${CPU_IDLE};$WARNING_THRESHOLD;$CRITICAL_THRESHOLD"
|
||||
;;
|
||||
SunOS ) CPU_REPORT=`iostat -c $INTERVAL_SEC $NUM_REPORT | tail -1`
|
||||
CPU_USER=`echo $CPU_REPORT | awk '{ print $1 }'`
|
||||
CPU_SYSTEM=`echo $CPU_REPORT | awk '{ print $2 }'`
|
||||
CPU_IOWAIT=`echo $CPU_REPORT | awk '{ print $3 }'`
|
||||
CPU_IOWAIT_MAJOR=`echo $CPU_IOWAIT | cut -d "." -f 1`
|
||||
CPU_IDLE=`echo $CPU_REPORT | awk '{ print $4 }'`
|
||||
NAGIOS_DATA="user=${CPU_USER}% system=${CPU_SYSTEM}% iowait=${CPU_IOWAIT}% idle=${CPU_IDLE}% | CpuUser=${CPU_USER};CpuSystem=${CPU_SYSTEM};CpuIoWait=${CPU_IOWAIT};CpuIdle=${CPU_IDLE};$WARNING_THRESHOLD;$CRITICAL_THRESHOLD"
|
||||
;;
|
||||
*) echo "UNKNOWN: `uname` not yet supported by this plugin. Coming soon !"
|
||||
exit $STATE_UNKNOWN
|
||||
;;
|
||||
esac
|
||||
|
||||
# Return
|
||||
if [ ${CPU_IOWAIT_MAJOR} -ge $WARNING_THRESHOLD ] && [ ${CPU_IOWAIT_MAJOR} -lt $CRITICAL_THRESHOLD ]; then
|
||||
echo "CPU STATISTICS WARNING : ${NAGIOS_DATA}"
|
||||
exit $STATE_WARNING
|
||||
elif [ ${CPU_IOWAIT_MAJOR} -ge $CRITICAL_THRESHOLD ]; then
|
||||
echo "CPU STATISTICS CRITICAL : ${NAGIOS_DATA}"
|
||||
exit $STATE_CRITICAL
|
||||
else
|
||||
echo "CPU STATISTICS OK : ${NAGIOS_DATA}"
|
||||
exit $STATE_OK
|
||||
fi
|
||||
total_usage = cpu_usage['us'] + cpu_usage['sy']
|
||||
if total_usage > 90:
|
||||
crit.add('Total CPU usage is {:.1f}% ({}% user, {}% system, >90%)'.format(
|
||||
total_usage,
|
||||
cpu_usage['us'],
|
||||
cpu_usage['sy'],
|
||||
))
|
||||
elif total_usage > 80:
|
||||
warn.add('Total CPU usage is {:.1f}% ({}% user, {}% system > 80%)'.format(
|
||||
total_usage,
|
||||
cpu_usage['us'],
|
||||
cpu_usage['sy'],
|
||||
))
|
||||
|
||||
for line in sorted(crit):
|
||||
print(line)
|
||||
|
||||
for line in sorted(warn):
|
||||
print(line)
|
||||
|
||||
if crit:
|
||||
exit(2)
|
||||
elif warn:
|
||||
exit(1)
|
||||
else:
|
||||
exit(0)
|
||||
except Exception as e:
|
||||
print(repr(e))
|
||||
exit(3)
|
||||
|
|
|
|||
Loading…
Reference in a new issue