Current File : //usr/share/munin/plugins/postgres_bgwriter
#!/usr/bin/perl
# -*- cperl -*-
#
# Copyright (C) 2009 Magnus Hagander, Redpill Linpro AB
#
# 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_bgwriter_ - Plugin to monitor the PostgreSQL Background Writer.
=head1 CONFIGURATION
Configuration is done through libpq environment variables, for example
PGUSER, PGDATABASE, etc. For more information, see L<Munin::Plugin::Pgsql>.
=head1 SEE ALSO
L<Munin::Plugin::Pgsql>
=head1 MAGIC MARKERS
#%# family=auto
#%# capabilities=autoconf
=head1 AUTHOR
Magnus Hagander <magnus@hagander.net>, Redpill Linpro AB
=head1 COPYRIGHT/License.
Copyright (c) 2009 Magnus Hagander, Redpill Linpro AB
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(
minversion => 8.3,
title => 'PostgreSQL bgwriter',
info => 'bgwriter buffer statistics',
vlabel => 'buffers / second',
basequery =>
"SELECT buffers_checkpoint,buffers_clean,buffers_backend,buffers_alloc FROM pg_stat_bgwriter",
pivotquery => 1,
configquery => "VALUES
('buffers_checkpoint','Buffers at checkpoint', 'Buffers written when performing a checkpoint'),
('buffers_clean','Buffers cleaned', 'Buffers cleaned by background bgwriter runs'),
('buffers_backend', 'Buffers by backend', 'Buffers written by backends and not the bgwriter'),
('buffers_alloc', 'Buffers allocated', 'Buffers allocated globally')",
graphtype => 'DERIVE',
graphmin => 0,
);
$pg->Process();
Mini Shell