157 lines
5.6 KiB
Perl
157 lines
5.6 KiB
Perl
#
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# Copyright 2021 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::locks;
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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, $class;
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$options{options}->add_options(arguments =>
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{
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"warning:s" => { name => 'warning', default => ''},
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"critical:s" => { name => 'critical', default => ''},
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"exclude:s" => { name => 'exclude', },
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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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my @warns = split /,/, $self->{option_results}->{warning};
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my @crits = split /,/, $self->{option_results}->{critical};
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foreach my $val (@warns) {
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next if (!defined($val));
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my ($label, $value) = split /=/, $val;
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next if (!defined($label) || !defined($value));
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if (($self->{perfdata}->threshold_validate(label => 'warn-' . $label, value => $value)) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong warning ('$label' locks) threshold '" . $value . "'.");
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$self->{output}->option_exit();
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}
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}
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foreach my $val (@crits) {
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next if (!defined($val));
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my ($label, $value) = split /=/, $val;
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next if (!defined($label) || !defined($value));
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if (($self->{perfdata}->threshold_validate(label => 'crit-' . $label, value => $value)) == 0) {
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$self->{output}->add_option_msg(short_msg => "Critical warning ('$label' locks) threshold '" . $value . "'.");
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$self->{output}->option_exit();
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}
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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} = $options{sql};
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$self->{sql}->connect();
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$self->{sql}->query(query => q{
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SELECT granted, mode, datname FROM pg_database d LEFT JOIN pg_locks l ON (d.oid=l.database) WHERE d.datallowconn
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});
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$self->{output}->output_add(severity => 'OK',
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short_msg => "All databases locks are ok.");
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my $result = $self->{sql}->fetchall_arrayref();
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my $dblocks = {};
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foreach my $row (@{$result}) {
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my ($granted, $mode, $dbname) = ($$row[0], $$row[1], $$row[2]);
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if (defined($self->{option_results}->{exclude}) && $dbname !~ /$self->{option_results}->{exclude}/) {
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next;
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}
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if (!defined($dblocks->{$dbname})) {
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$dblocks->{$dbname} = {total => 0, waiting => 0};
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# Empty. no lock (left join)
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next if (!defined($mode) || $mode eq '');
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}
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$dblocks->{$dbname}->{total}++;
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$mode =~ s{lock$}{};
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$dblocks->{$dbname}->{lc($mode)}++;
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$dblocks->{$dbname}->{waiting}++ if (!$granted);
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}
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foreach my $dbname (keys %$dblocks) {
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foreach my $locktype (keys %{$dblocks->{$dbname}}) {
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$self->{output}->output_add(long_msg => sprintf("Database '%s' lock '%s': %d",
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$dbname, $locktype, $dblocks->{$dbname}->{$locktype}));
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my $exit_code = $self->{perfdata}->threshold_check(value => $dblocks->{$dbname}->{$locktype}, threshold => [ { label => 'crit-' . $locktype, 'exit_litteral' => 'critical' }, { label => 'warn-' . $locktype, exit_litteral => 'warning' } ]);
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if (!$self->{output}->is_status(value => $exit_code, compare => 'ok', litteral => 1)) {
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$self->{output}->output_add(severity => $exit_code,
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short_msg => sprintf("Database '%s' lock '%s': %d",
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$dbname, $locktype, $dblocks->{$dbname}->{$locktype}));
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}
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$self->{output}->perfdata_add(label => $dbname . '_' . $locktype,
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value => $dblocks->{$dbname}->{$locktype},
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warning => $self->{perfdata}->get_perfdata_for_output(label => 'warn-' . $locktype),
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critical => $self->{perfdata}->get_perfdata_for_output(label => 'crit-' . $locktype),
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min => 0);
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}
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}
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$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 locks for one or more databases
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=over 8
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=item B<--warning>
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Threshold warning. (example: "total=250,waiting=5,exclusive=20")
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'total', 'waiting', or the name of a lock type used by Postgres.
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=item B<--critical>
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Threshold critical. (example: "total=250,waiting=5,exclusive=20")
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'total', 'waiting', or the name of a lock type used by Postgres.
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=item B<--exclude>
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Filter databases.
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=back
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=cut
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