/
slowqueries.pm
143 lines (110 loc) · 4.66 KB
/
slowqueries.pm
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#
# Copyright 2024 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::mysql::mode::slowqueries;
use base qw(centreon::plugins::mode);
use strict;
use warnings;
use centreon::plugins::statefile;
sub new {
my ($class, %options) = @_;
my $self = $class->SUPER::new(package => __PACKAGE__, %options, force_new_perfdata => 1);
bless $self, $class;
$options{options}->add_options(arguments => {
'warning:s' => { name => 'warning' },
'critical:s' => { name => 'critical' }
});
$self->{statefile_cache} = centreon::plugins::statefile->new(%options);
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();
}
$self->{statefile_cache}->check_options(%options);
}
sub run {
my ($self, %options) = @_;
# $options{sql} = sqlmode object
$self->{sql} = $options{sql};
$self->{sql}->connect();
if (!($self->{sql}->is_version_minimum(version => '5'))) {
$self->{output}->add_option_msg(short_msg => "MySQL version '" . $self->{sql}->{version} . "' is not supported (need version >= '5.x').");
$self->{output}->option_exit();
}
$self->{sql}->query(query => q{SHOW /*!50000 global */ STATUS LIKE 'Slow_queries'});
my ($name, $result) = $self->{sql}->fetchrow_array();
if (!defined($result)) {
$self->{output}->add_option_msg(short_msg => "Cannot get slow queries.");
$self->{output}->option_exit();
}
my $new_datas = {};
$self->{statefile_cache}->read(statefile => 'mysql_' . $self->{mode} . '_' . $self->{sql}->get_unique_id4save());
my $old_timestamp = $self->{statefile_cache}->get(name => 'last_timestamp');
$new_datas->{last_timestamp} = time();
if (defined($old_timestamp) && $new_datas->{last_timestamp} - $old_timestamp == 0) {
$self->{output}->add_option_msg(short_msg => "Need at least one second between two checks.");
$self->{output}->option_exit();
}
$new_datas->{$name} = $result;
my $old_val = $self->{statefile_cache}->get(name => $name);
if (defined($old_val) && $result >= $old_val) {
my $value = ($result - $old_val);
my $exit_code = $self->{perfdata}->threshold_check(value => $value, threshold => [ { label => 'critical', exit_litteral => 'critical' }, { label => 'warning', exit_litteral => 'warning' } ]);
$self->{output}->output_add(
severity => $exit_code,
short_msg => sprintf("%d slow queries since last check.", $value)
);
$self->{output}->perfdata_add(
label => 'slow_queries_delta',
nlabel => 'database.slowqueries.delta.count',
value => $value,
warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning'),
critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical'),
min => 0
);
}
$self->{statefile_cache}->write(data => $new_datas);
if (!defined($old_timestamp)) {
$self->{output}->output_add(
severity => 'OK',
short_msg => "Buffer creation..."
);
}
$self->{output}->display();
$self->{output}->exit();
}
1;
__END__
=head1 MODE
Check number of slow queries since last check.
=over 8
=item B<--warning>
Warning number for slow queries since last check.
=item B<--critical>
Critical number for slow queries since last check.
=back
=cut