Munin contributed plugins

#!/bin/sh

# -*- sh -*-

: << =cut

=head1 NAME

apache_memory -Indicate the medium size of all the apache child process

=head1 CONFIGURATION

[apache_*]

env.apuser user_running_apache (default: "www-data")

env.binname apache_binary_name (default: "apache2")

=head1 AUTHOR

Ricardo Fraile <rfrail3@yahoo.es>

=head1 LICENSE

GPLv2

=head1 MAGICK MARKERS

 #%# family=auto

 #%# capabilities=autoconf

=cut

. "$MUNIN_LIBDIR/plugins/plugin.sh"

USR=${apuser:-www-data}

PROCS=${binname:-apache2}

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

    echo yes

    exit 0

fi

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

    echo 'graph_title Average size of apache child processes'

    echo 'graph_args --base 1024 -l 0 '

    echo 'graph_vlabel Bytes'

    echo 'graph_scale no'

    echo 'graph_category webserver'

    echo 'graph_info Indicate the memdium size of all the apache child process.'

    echo "servers.label servers"

    echo "servers.type GAUGE"

    echo "servers.min 0"

    exit 0

fi

matched_processes=$(ps auxf | grep -- "$PROCS" | grep "^$USR" | grep -v grep)

if [ -n "$matched_processes" ]; then

    average_memory=$(printf '%s' "$matched_processes" | awk '{count+=1; sum+=$6} END {print sum / count * 1024}')

else

    average_memory="U"

fi

echo "servers.value $average_memory"