LiveServer: multimemory.sh

#!/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.names apache2 nagios3

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

  0.1 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: dominic@dubdot.com

=head1 LICENSE

GPLv2

=cut

#. $MUNIN_LIBDIR/plugins/plugin.sh
. /usr/local/share/munin/plugins/plugin.sh

if [ "$1" = "autoconf" ]; then
        echo yes
        exit 0
fi

if [ -z "$names" ]; then
  echo "Configuration required"
  exit 1
fi

if [ "$1" = "config" ]; then
        echo graph_title Total memory usage
        echo 'graph_category processes'
        echo 'graph_args --base 1024 --vertical-label memory -l 0'
        for name in $names; do
                fieldname=$(clean_fieldname $name)
                eval REGEX='"${regex_'$name'-\<'$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 "

        #ps auxww | grep $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 }'
        #ps auxwwc -o rss | grep $name | grep -v grep | rev | sed -e 's/[ ].*$/' | /usr/bin/awk '{ total = total + $1 } END { print total * 1024 }'
        #ps auxww | grep $name | grep -v grep | sed -e 's/[ ]{1,}/ /g' | /usr/bin/cut -d ' ' -f 6 | /usr/bin/awk '{ total = total + $1 } END { print total * 1024 }'
        ps auxwwc -o rss | grep $name | grep -v grep | rev | /usr/bin/cut -d ' ' -f 1 | /usr/bin/awk '{ total = total + $1 } END { print total * 1024 }'
done