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check_proc_zombie

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    • check_php-fpm-status 4.28 KiB
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    #!/bin/bash
# ======================================================================
#
# NAGIOS CLIENT CHECK :: php-fpm requests
#
# ----------------------------------------------------------------------
# script checks output of fpm "/status" and counts scoreboard chars
# ----------------------------------------------------------------------
# 2021-09-22  v0.1  <axel.hahn@iml.unibe.ch>  initial version
# ======================================================================

. `dirname $0`/inc_pluginfunctions

tmpfile=/tmp/check_fpm_processes_1

defaulturl=localhost/status

# ----------------------------------------------------------------------
# functions
# ----------------------------------------------------------------------

# get a value from fpm status
#
# example output:
# pool:                 www
# process manager:      dynamic
# start time:           21/Sep/2021:16:01:12 +0200
# start since:          65914
# accepted conn:        34
# listen queue:         0
# max listen queue:     0
# listen queue len:     0
# idle processes:       6
# active processes:     3
# total processes:      9
# max active processes: 6
# max children reached: 0
# slow requests:        0
#
# param  string  variable (part before ":")
function _getvalue(){
        grep "^$1:" $tmpfile | cut -d ":" -f 2 | awk '{ print $1 }'
}

# ----------------------------------------------------------------------
# pre checks
# ----------------------------------------------------------------------
ph.require wget

# ----------------------------------------------------------------------
# check params
# ----------------------------------------------------------------------

# --- check param -h
if [ "$1" = "-h" ]; then
    echo "
    Check PHP FPM status

    usage: $0 [-u URL]

        -u  url to fpm status page  (optional; default: $defaulturl)
        -h  this help

    "
    exit 0
fi

# set default / override from command line params
typeset -i iWarnLimit=`     ph.getValueWithParam 75 w "$@"`
typeset -i iCriticalLimit=` ph.getValueWithParam 90 c "$@"`
url=$( ph.getValueWithParam $defaulturl u "$@" )

# --- get /server-status page
wget --no-check-certificate -O $tmpfile $url 2>/dev/null
if [ $? -ne 0 ]; then
    rm -f $tmpfile
    ph.abort "UNKNOWN: request to url $url failed. `wget --no-check-certificate -O - -S $url`"
fi

# ----------------------------------------------------------------------
# get values from status output
# ----------------------------------------------------------------------

# --- handled requests per sec
typeset -i iConn=$(  _getvalue "accepted conn")
typeset -i iSpeed=$( ph.perfdeltaspeed "fpm-accepted" $iConn )

# --- count slots
typeset -i iActive=$(    _getvalue "active processes" )
typeset -i iMaxActive=$( _getvalue "max active processes" )
typeset -i iIdle=$(      _getvalue "idle processes")

# --- experimental: generate warning / error 
typeset -i iQueue=$(     _getvalue "listen queue len")
typeset -i iMaxQueue=$(  _getvalue "max listen queue")
typeset -i iSlow=$(      _getvalue "slow requests")
typeset -i iMaxChilds=$( _getvalue "max children reached")


# damn, count of slots is in the config only - not in status output
# iUsage=$iActive*100/$iSlots
# ph.setStatusByLimit $iUsage $iWarnLimit $iCriticalLimit
if [ $iQueue -gt 0 -o $iSlow -gt 0 ]; then
        ph.setStatus warning
fi
if [ $iMaxChilds -gt 0 ]; then
        ph.setStatus critical
fi


# --- output
ph.status "PHP-FPM: active: $iActive (max: $iMaxActive) .. wait: $iIdle .. queue: $iQueue (max: $iMaxQueue) .. speed: $iSpeed req per sec"

if [ $iQueue -gt 0 ]; then
        echo "WARNING: $iQueue queued requests were found"
fi
if [ $iSlow -gt 0 ]; then
        echo "WARNING: $iSlow slow requests were found"
fi
if [ $iMaxChilds -gt 0 ]; then
        echo "CRITICAL: max. children was reached $iMaxChilds"
fi
echo
cat $tmpfile
echo

# --- add performnce data
ph.perfadd "php-fpm-active"    "${iActive}"    "" "" 0 0
ph.perfadd "php-fpm-maxactive" "${iMaxActive}" "" "" 0 0
ph.perfadd "php-fpm-idle"      "${iIdle}"      "" "" 0 0
ph.perfadd "php-fpm-queue"     "${iQueue}"     "" "" 0 0
ph.perfadd "php-fpm-maxqueue"  "${iMaxQueue}"  "" "" 0 0
ph.perfadd "php-fpm-slow"      "${iSlow}"      "" "" 0 0
ph.perfadd "php-fpm-speed"     "${iSpeed}"     "" "" 0 0

rm -f $tmpfile

ph.exit

# ----------------------------------------------------------------------