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