Munin contributed plugins

#!/bin/sh

# -*- sh -*-

: <<=cut

=head1 NAME

multimemory - Munin plugin to monitor memory usage of processes. Which processes

are configured in client-conf.d

=head1 APPLICABLE SYSTEMS

Any system with a compatible ps command.

=head1 CONFIGURATION

There is no default configuration.  This is an example:

  [multimemory]

	 env.os freebsd

     env.names apache2 mysqld php-cgi

Set env.os to freebsd if you are running this script on a machine which doesnt have

GNU sed installed (FreeBSD / OpenBSD / Solaris ...), else set it to linux.

The names are used to grep with directly, after cleaning. So, this plugin

only supports very basic pattern matching. To fix: see multips

=head1 INTERPRETATION

This plugin adds up the RSS of all processes matching the

regex given as the process name, as reported by ps.

=head1 MAGIC MARKERS

  #%# family=manual

  #%# capabilities=autoconf

=head1 VERSION

  0.3 light improvement in FreeBSD part of ps parsing

  0.2 second release, it should now work on machines without GNU sed

  0.1 first release, based on:

    multimemory.in 1590 2008-04-17 18:21:31Z matthias

  As distributed in Debian.

=head1 BUGS

None known

=head1 AUTHOR

Originally: matthias?

Modified by: github.com/dominics github.com/yhager

Thanks to: wix

=head1 LICENSE

GPLv2

=cut

if [ -z "$MUNIN_LIBDIR" ]; then

	MUNIN_LIBDIR="`dirname $(dirname "$0")`"

fi

. $MUNIN_LIBDIR/plugins/plugin.sh

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

	echo yes

	exit 0

fi

if [ -z "$names" -o -z "$os" ]; then

  echo "Configuration required"

  exit 1

fi

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

	echo graph_title Total memory usage

	echo 'graph_category memory'

	echo 'graph_args --base 1024 --vertical-label memory -l 0'

	for name in $names; do

	    	fieldname=$(clean_fieldname $name)

	    	REGEX='\<'"$name"'\>'

		echo "$fieldname.label $name"

		echo "$fieldname.draw LINE2"

		echo "$fieldname.info Processes matching this regular expression: /$REGEX/"

	done

	exit 0

fi

for name in $names; do

        fieldname=$(clean_fieldname $name)

	printf "$fieldname.value "

	if [ "$os" = "freebsd" ]; then

		ps awxo rss,command | grep -w $name | grep -v grep | /usr/bin/awk '{ total += $1 } END { print total * 1024 }'

	else

		ps auxww | grep -w $name | grep -v grep | sed -re 's/[ ]{1,}/ /g' | /usr/bin/cut -d ' ' -f 6 | /usr/bin/awk '{ total = total + $1 } END { print total * 1024 }'

	fi

done