118 lines
4.2 KiB
Perl
118 lines
4.2 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::mysql::mode::opentables;
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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', },
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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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}
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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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if (!($self->{sql}->is_version_minimum(version => '5'))) {
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$self->{output}->add_option_msg(short_msg => "MySQL version '" . $self->{sql}->{version} . "' is not supported (need version >= '5.x').");
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$self->{output}->option_exit();
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}
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$self->{sql}->query(query => q{SHOW VARIABLES LIKE 'table_open_cache'});
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my ($dummy, $open_tables_limit) = $self->{sql}->fetchrow_array();
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if (!defined($open_tables_limit)) {
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$self->{output}->add_option_msg(short_msg => "Cannot get open table limit.");
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$self->{output}->option_exit();
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}
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$self->{sql}->query(query => q{SHOW /*!50000 global */ STATUS LIKE 'Open_tables'});
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($dummy, my $open_tables) = $self->{sql}->fetchrow_array();
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if (!defined($open_tables)) {
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$self->{output}->add_option_msg(short_msg => "Cannot get open tables.");
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$self->{output}->option_exit();
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}
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my $prct_open = int(100 * $open_tables / $open_tables_limit);
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my $exit_code = $self->{perfdata}->threshold_check(value => $prct_open, threshold => [ { label => 'critical', exit_litteral => 'critical' }, { label => 'warning', exit_litteral => 'warning' } ]);
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$self->{output}->output_add(severity => $exit_code,
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short_msg => sprintf("%.2f%% of the open files limit reached (%d of max. %d)",
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$prct_open, $open_tables, $open_tables_limit));
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$self->{output}->perfdata_add(label => 'open_tables',
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value => $open_tables,
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warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning', total => $open_tables_limit, cast_int => 1),
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critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical', total => $open_tables_limit, cast_int => 1),
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min => 0);
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$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 number of open tables.
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=over 8
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=item B<--warning>
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Threshold warning in percent.
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=item B<--critical>
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Threshold critical in percent.
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=back
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=cut
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