144 lines
5.3 KiB
Perl
144 lines
5.3 KiB
Perl
#
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# Copyright 2015 Centreon (http://www.centreon.com/)
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#
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# Centreon is a full-fledged industry-strength solution that meets
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# the needs in IT infrastructure and application monitoring for
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# service performance.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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package database::postgres::mode::vacuum;
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use base qw(centreon::plugins::mode);
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use strict;
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use warnings;
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sub new {
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my ($class, %options) = @_;
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my $self = $class->SUPER::new(package => __PACKAGE__, %options);
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bless $self, $class;
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$self->{version} = '1.0';
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$options{options}->add_options(arguments =>
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{
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"warning:s" => { name => 'warning', },
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"critical:s" => { name => 'critical', },
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});
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return $self;
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}
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sub check_options {
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my ($self, %options) = @_;
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$self->SUPER::init(%options);
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if (($self->{perfdata}->threshold_validate(label => 'warning', value => $self->{option_results}->{warning})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong warning threshold '" . $self->{option_results}->{warning} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'critical', value => $self->{option_results}->{critical})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong critical threshold '" . $self->{option_results}->{critical} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'dbname', value => $self->{option_results}->{dbname})) eq 'postgres') {
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$self->{output}->add_option_msg(short_msg => "Invalid db.");
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$self->{output}->option_exit();
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}
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}
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sub run {
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my ($self, %options) = @_;
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# $options{sql} = sqlmode object
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$self->{sql} = $options{sql};
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# Ensures a DB has been specified
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# otherwise we endup in default system table (postgres)
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# and the check does not support this behaviour (empty pg_stat_user_table => no need to check)
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# FIXME this check should be performed in check_options() but these settings are not available at the moment
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my $data_source = $self->{sql}->{data_source};
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if ($data_source =~ /.*;database=(.*)/) {
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if ($1 eq 'postgres') {
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$self->{output}->add_option_msg(short_msg => "Cannot use system 'postgres' database ; you must use a real database.");
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$self->{output}->option_exit();
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} elsif ($1 eq '') {
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$self->{output}->add_option_msg(short_msg => "Database must be specified.");
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$self->{output}->option_exit();
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}
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} else {
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$self->{output}->add_option_msg(short_msg => "Need to specify database argument.");
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$self->{output}->option_exit();
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}
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$self->{sql}->connect();
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my $target_fields = undef;
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# Autovacuum feature has only been impleted starting PG 8.2
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# (options needed http://www.postgresql.org/docs/8.2/static/runtime-config-autovacuum.html, no need starting 8.3)
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if ($self->{sql}->is_version_minimum(version => '8.2.0')) {
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$target_fields = 'greatest(last_autovacuum,last_vacuum)';
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} else {
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$target_fields = 'last_vacuum';
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}
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my $query = sprintf("SELECT ROUND(EXTRACT(EPOCH from (select min (now() - %s)
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from pg_stat_user_tables where %s is not null)))", $target_fields, $target_fields);
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$self->{sql}->query(query => $query);
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my $result = $self->{sql}->fetchrow_array();
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if (defined($result)) {
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my $exit_code = $self->{perfdata}->threshold_check(value => $result, threshold => [ { label => 'critical', 'exit_litteral' => 'critical' }, { label => 'warning', exit_litteral => 'warning' } ]);
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$self->{output}->output_add(severity => $exit_code,
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short_msg => sprintf("Most recent vacuum dates back from %d seconds", $result));
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$self->{output}->perfdata_add(label => 'last_vacuum',
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value => $result,
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warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning'),
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critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical'));
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} else {
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$self->{output}->output_add(severity => 'UNKNOWN',
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short_msg => 'No vacuum performed on this BD yet.');
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}
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$self->{output}->display();
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$self->{output}->exit();
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}
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1;
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__END__
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=head1 MODE
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Check a vacuum (manual or auto) command has been performed on at least one of the tables of the associated DB
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=over 8
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=item B<--warning>
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Threshold warning in seconds, maximum time interval since last vacuum.
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=item B<--critical>
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Threshold critical in seconds, maximum time interval since last vacuum.
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=back
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=cut
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