Munin contributed plugins

#!/usr/bin/perl

# -*- cperl -*-

#

# Copyright (C) 2012, Clemens Schwaighofer

#

# This program is free software; you can redistribute it and/or

# modify it under the terms of the GNU General Public License

# as published by the Free Software Foundation; version 2 dated June,

# 1991.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

# 02110-1301 USA.

=head1 NAME

postgres_size_detail_ - Plugin to monitor PostgreSQL database size for one database in detail (data, index, sequence, view)

=head1 CONFIGURATION

Configuration is done through libpq environment variables, for example

PGUSER, PGDATABASE, etc. For more information, see L<Munin::Plugin::Pgsql>.

To monitor a specific database, link to postgres_size_<databasename>.

This script cannot monitor all database detail sizes at the same time, a valid database name needs to be given.

=head1 SEE ALSO

L<Munin::Plugin::Pgsql>

=head1 MAGIC MARKERS

 #%# family=auto

 #%# capabilities=autoconf suggest

=head1 AUTHOR

Magnus Hagander <magnus@hagander.net>, Redpill Linpro AB

=head1 COPYRIGHT/License.

Copyright (c) 2012, Clemens Schwaighofer (gullevek@gullevek.org)

All rights reserved. This program is free software; you can

redistribute it and/or modify it under the terms of the GNU General

Public License as published by the Free Software Foundation; version 2

dated June, 1991.

=cut

use strict;

use warnings;

use Munin::Plugin::Pgsql;

my $pg = Munin::Plugin::Pgsql->new(

    basename => 'postgres_size_detail_',

    title    => 'PostgreSQL detail database size',

    info     => 'Size of database in detail',

    vlabel   => 'Size',

    paramdatabase => 1,

    basequery => "SELECT CASE WHEN relkind = 'r' OR relkind = 't' THEN 'db_detail_data' WHEN relkind = 'i' THEN 'db_detail_index' WHEN relkind = 'v' THEN 'db_detail_view' WHEN relkind = 'S' THEN 'db_detail_sequence' ELSE 'db_detail_other' END AS state,

	SUM(relpages::bigint * 8 * 1024) AS size 

	FROM pg_class pg, pg_namespace pgn WHERE pg.relnamespace = pgn.oid AND pgn.nspname NOT IN ('information_schema', 'pg_catalog') GROUP BY state",

    configquery    => [

        "VALUES ('db_detail_data','Data size'),('db_detail_index','Index size'),('db_detail_sequence','Sequence size'),('db_detail_view','View size')",

    ],

    suggestquery =>

        "SELECT datname FROM pg_database WHERE datallowconn AND NOT datistemplate AND NOT datname='postgres' UNION ALL SELECT 'ALL' ORDER BY 1 LIMIT 10",

    stack     => 1,

    graphmin  => 0,

    graphdraw => 'AREA',

	extraconfig => 'graph_total Total'

);

$pg->Process();