centreon-plugins/database/mysql/mode/longqueries.pm

149 lines
4.9 KiB
Perl

#
# Copyright 2020 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::longqueries;
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;
$options{options}->add_options(arguments => {
'warning:s' => { name => 'warning', },
'critical:s' => { name => 'critical', },
'seconds:s' => { name => 'seconds', default => 60 },
'filter-user:s' => { name => 'filter_user' },
'filter-command:s' => { name => 'filter_command', default => '^(?!(sleep)$)' },
});
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} . "'.");
$self->{output}->option_exit();
}
if (!defined($self->{option_results}->{seconds}) || $self->{option_results}->{seconds} !~ /^[0-9]+$/) {
$self->{output}->add_option_msg(short_msg => "Please set the option --seconds.");
$self->{output}->option_exit();
}
}
sub run {
my ($self, %options) = @_;
# $options{sql} = sqlmode object
$self->{sql} = $options{sql};
$self->{sql}->connect();
$self->{sql}->query(query => q{SELECT USER, COMMAND, TIME, INFO FROM information_schema.processlist ORDER BY TIME DESC});
my $long_queries = 0;
my @queries = ();
while ((my $row = $self->{sql}->fetchrow_hashref())) {
next if (defined($self->{option_results}->{filter_user}) && $self->{option_results}->{filter_user} ne '' &&
$row->{USER} !~ /$self->{option_results}->{filter_user}/i);
next if (defined($self->{option_results}->{filter_command}) && $self->{option_results}->{filter_command} ne '' &&
$row->{COMMAND} !~ /$self->{option_results}->{filter_command}/i);
if (defined($self->{option_results}->{seconds}) && $self->{option_results}->{seconds} ne '' && $row->{TIME} >= $self->{option_results}->{seconds}) {
push @queries, { time => $row->{TIME}, query => $row->{INFO} };
$long_queries++;
}
}
my $exit_code = $self->{perfdata}->threshold_check(value => $long_queries, threshold => [ { label => 'critical', exit_litteral => 'critical' }, { label => 'warning', exit_litteral => 'warning' } ]);
$self->{output}->output_add(
severity => $exit_code,
short_msg => sprintf(
"%s queries over %s seconds",
$long_queries, $self->{option_results}->{seconds}
)
);
$self->{output}->perfdata_add(
label => 'longqueries',
value => $long_queries,
warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning'),
critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical'),
min => 0
);
for (my $i = 0; $i < 10 && $i < scalar(@queries); $i++) {
$queries[$i]->{query} =~ s/\|/-/mg if (defined($queries[$i]->{query}));
$self->{output}->output_add(long_msg =>
sprintf(
"[time: %s] [query: %s]",
$queries[$i]->{time},
defined($queries[$i]->{query}) ? substr($queries[$i]->{query}, 0, 1024) : '-'
)
);
}
$self->{output}->display();
$self->{output}->exit();
}
1;
__END__
=head1 MODE
Check current number of long queries.
=over 8
=item B<--warning>
Threshold warning (number of long queries).
=item B<--critical>
Threshold critical (number of long queries).
=item B<--seconds>
The minimum execution time in seconds for a long query (Default: 60).
=item B<--filter-user>
Filter by user (can be a regexp).
=item B<--filter-command>
Filter by command (can be a regexp. Default: '^(?!(sleep)$)').
=back
=cut