Munin contributed plugins

#!/bin/bash

#

#healthcheck on munin

#check process and alert.

#

#programed by rti (hiroyuki fujie) super.rti@gmail.com @super_rti

#LICENSE: NYSL (public domain)

#

#config file

#      /etc/munin/plugin-conf.d/munin-node

#

#example minimum config

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

#[healthcheck_process]

#env.process_1 httpd

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

#

#chcek two process

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

#[healthcheck_process]

#env.process_1 httpd

#env.process_2 samba

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

#

#chcek three process

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

#[healthcheck_process]

#env.process_1 httpd

#env.process_2 samba

#env.process_3 mysqld

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

#

#set alert memory(MB)

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

#[healthcheck_process]

#env.process_1 httpd

#env.alertmemory_1 1024   #1G (sum all httpd process)

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

#

#

#edakari speed up.

CHECKMAX=`env | grep process_ | wc -l`

let CHECKMAX="$CHECKMAX + 1"

if [ "$1" = "autoconf" ]; then

    if [ $CHECKMAX -le 1 ]; then

         echo no

         exit 1

    fi

    echo yes

    exit 0

fi

if [ "$1" = "config" ]; then

     MemTotal=`cat /proc/meminfo | grep MemTotal | awk '{ print $2 }'`

     let MemTotal="$MemTotal / 1024 "   #MB

     let MemTotal15="$MemTotal * 3 / 2" #$MemTotal*1.5

    echo 'graph_title process memory Usage(MB)'

    echo "graph_args --base 1000 -l 0 --vertical-label MB"

    echo 'graph_scale no'

    echo 'graph_vlabel process memory'

    echo 'graph_category healthcheck'

    echo 'graph_info This graph shows the Memory used by process'

    for(( I = 1; I < $CHECKMAX; ++I ))

    do

         eval process=\$process_${I}

         eval alertmemory=\$alertmemory_${I}

         if [ "x${process}" = "x" ]; then

              continue

         fi

         if [ "x${alertmemory}" = "x" ]; then

              alertmemory=${MemTotal}

         fi

         echo "$process.label $process"

         echo "$process.info Memory used by $process"

         echo "$process.draw LINE2"

         echo "$process.min -10"

         echo "$process.max ${MemTotal15}"

         echo "$process.critical 0:${alertmemory}"

    done

    exit 0

fi

for(( I = 1; I < $CHECKMAX; ++I ))

do

     eval process=\$process_${I}

     if [ "x${process}" = "x" ]; then

         continue

     fi

     vrets=(`ps u --no-headers -C $process | awk 'BEGIN { count = 0 ; sum = 0; } { count ++ ; sum += $6/1024 ; } END { printf("%d %d\n",count,sum); }'`)

     count=${vrets[0]}

     value=${vrets[1]}

     if [ $count -le 0 ]; then

         echo "$process.value -10"

         echo "$process.extinfo process down"

     else

         echo "$process.value $value"

     fi

done