Munin contributed plugins

#!/bin/bash

#

# Plugin to monitor Memory usage inspired by cpubyuser 

# 

# 2012-05-23 Sebastien Campion

LU=`ps auh | cut -d' ' -f 1  | sort -u`

USERS=`echo $LU`

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

	if [ -n "$USERS" ]; then

		echo "yes"

	else

		echo "\$USERS not defined."

	fi

	exit

fi

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

	echo "graph_args --base 1000 -r --lower-limit 0"

	echo "graph_title Memory usage, by user"

	echo "graph_category memory"

	echo "graph_info This graph shows memory usage, for monitored users."

	echo "graph_vlabel KB"

	echo "graph_scale no"

	echo "graph_period second"

	_USERS=${USERS//[-.]/_}

	echo "graph_order $_USERS others"

	FIRSTUSER=1;

	for USER in $USERS "others"; do

		_USER=${USER//[-.]/_}

		echo "${_USER}.label $USER"

		echo "${_USER}.info Memory used by user $USER"

		echo "${_USER}.type GAUGE"

		if [ $FIRSTUSER -eq 1 ]; then

			echo "${_USER}.draw AREA"

			FIRSTUSER=0

		else

			echo "${_USER}.draw STACK"

		fi

	done

	exit

fi

ps -e -o "%z%U" | \

	awk -v USERS="$USERS" '

		{ if ($2 != "USER") MEM_USER[$2]+=$1 }

		END {

			others_sum = 0

			for (user in MEM_USER) {

				m = match(USERS,user)

				if (m != 0) {

					_user=user

					gsub(/[-.]/,"_", _user);

					print _user".value", MEM_USER[user]

				} else

					others_sum += MEM_USER[user]

			}

		print "others.value", others_sum;

	}'