Fix #5444
This commit is contained in:
Quentin garnier
parent
46930a521f
commit
d2e14ed91b
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@ -108,8 +108,7 @@ sub run {
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if (defined($old_read_request) && defined($old_read) &&
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if (defined($old_read_request) && defined($old_read) &&
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$new_datas->{Innodb_buffer_pool_read_requests} >= $old_read_request &&
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$new_datas->{Innodb_buffer_pool_read_requests} >= $old_read_request &&
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$new_datas->{Innodb_buffer_pool_reads} >= $old_read) {
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$new_datas->{Innodb_buffer_pool_reads} >= $old_read) {
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my %prcts = ();
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my %prcts = ();
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my $total_read_requests = $new_datas->{Innodb_buffer_pool_read_requests} - $old_read_request;
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my $total_read_requests = $new_datas->{Innodb_buffer_pool_read_requests} - $old_read_request;
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my $total_read_disk = $new_datas->{Innodb_buffer_pool_reads} - $old_read;
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my $total_read_disk = $new_datas->{Innodb_buffer_pool_reads} - $old_read;
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@ -85,7 +85,7 @@ sub run {
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$self->{sql}->query(query => q{SHOW VARIABLES LIKE 'open_files_limit'});
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$self->{sql}->query(query => q{SHOW VARIABLES LIKE 'open_files_limit'});
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my ($dummy, $open_files_limit) = $self->{sql}->fetchrow_array();
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my ($dummy, $open_files_limit) = $self->{sql}->fetchrow_array();
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if (!defined($open_files_limit)) {
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if (!defined($open_files_limit)) {
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$self->{output}->add_option_msg(short_msg => "Cannot get ope files limit.");
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$self->{output}->add_option_msg(short_msg => "Cannot get open files limit.");
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$self->{output}->option_exit();
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$self->{output}->option_exit();
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}
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}
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$self->{sql}->query(query => q{SHOW /*!50000 global */ STATUS LIKE 'Open_files'});
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$self->{sql}->query(query => q{SHOW /*!50000 global */ STATUS LIKE 'Open_files'});
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@ -0,0 +1,183 @@
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################################################################################
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# Copyright 2005-2013 MERETHIS
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# Centreon is developped by : Julien Mathis and Romain Le Merlus under
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# GPL Licence 2.0.
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation ; either version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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# PARTICULAR PURPOSE. See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program; if not, see <http://www.gnu.org/licenses>.
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#
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# Linking this program statically or dynamically with other modules is making a
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# combined work based on this program. Thus, the terms and conditions of the GNU
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# General Public License cover the whole combination.
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#
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# As a special exception, the copyright holders of this program give MERETHIS
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# permission to link this program with independent modules to produce an executable,
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# regardless of the license terms of these independent modules, and to copy and
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# distribute the resulting executable under terms of MERETHIS choice, provided that
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# MERETHIS also meet, for each linked independent module, the terms and conditions
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# of the license of that module. An independent module is a module which is not
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# derived from this program. If you modify this program, you may extend this
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# exception to your version of the program, but you are not obliged to do so. If you
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# do not wish to do so, delete this exception statement from your version.
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#
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# For more information : contact@centreon.com
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# Authors : Quentin Garnier <qgarnier@merethis.com>
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#
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####################################################################################
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package database::mysql::mode::qcachehitrate;
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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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use centreon::plugins::statefile;
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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, $class;
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$self->{version} = '1.0';
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$options{options}->add_options(arguments =>
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{
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"warning:s" => { name => 'warning', },
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"critical:s" => { name => 'critical', },
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"lookback" => { name => 'lookback', },
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});
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$self->{statefile_cache} = centreon::plugins::statefile->new(%options);
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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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$self->{statefile_cache}->check_options(%options);
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}
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sub run {
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my ($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 /*!50000 global */ STATUS WHERE Variable_name IN ('Com_select', 'Qcache_hits')});
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my $new_datas = {Com_select => undef, Qcache_hits => undef};
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my $result = $self->{sql}->fetchall_arrayref();
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foreach my $row (@{$result}) {
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$new_datas->{$$row[0]} = $$row[1];
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}
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foreach (keys %$new_datas) {
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if (!defined($new_datas->{$_})) {
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$self->{output}->add_option_msg(short_msg => "Cannot get '$_' variable.");
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$self->{output}->option_exit();
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}
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}
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$self->{sql}->query(query => q{SHOW VARIABLES WHERE Variable_name IN ('have_query_cache', 'query_cache_size')});
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my ($dummy, $have_query_cache) = $self->{sql}->fetchrow_array();
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if (!defined($have_query_cache)) {
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$self->{output}->add_option_msg(short_msg => "Cannot get have_query_cache variable.");
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$self->{output}->option_exit();
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}
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($dummy, my $query_cache_size) = $self->{sql}->fetchrow_array();
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if (!defined($query_cache_size)) {
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$self->{output}->add_option_msg(short_msg => "Cannot get query_cache_size variable.");
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$self->{output}->option_exit();
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}
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if ($have_query_cache !~ /^yes$/i || $query_cache_size == 0) {
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$self->{output}->output_add(severity => 'OK',
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short_msg => "Query cache is turned off.");
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$self->{output}->display();
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$self->{output}->exit();
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}
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$self->{statefile_cache}->read(statefile => 'mysql_' . $self->{mode} . '_' . $self->{sql}->get_unique_id4save());
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my $old_timestamp = $self->{statefile_cache}->get(name => 'last_timestamp');
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$new_datas->{last_timestamp} = time();
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my $old_com_select = $self->{statefile_cache}->get(name => 'Com_select');
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my $old_qcache_hits = $self->{statefile_cache}->get(name => 'Qcache_hits');
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if (defined($old_com_select) && defined($old_qcache_hits) &&
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$new_datas->{Com_select} >= $old_com_select &&
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$new_datas->{Qcache_hits} >= $old_qcache_hits) {
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my %prcts = ();
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my $total_select_requests = ($new_datas->{Com_select} - $old_com_select) + ($new_datas->{Qcache_hits} - $old_qcache_hits);
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my $total_hits = $new_datas->{Qcache_hits} - $old_qcache_hits;
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$prcts{qcache_hitrate_now} = ($total_select_requests == 0) ? 100 : ($total_hits) * 100 / $total_select_requests;
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$prcts{qcache_hitrate} = (($new_datas->{Qcache_hits} + $new_datas->{Com_select}) == 0) ? 100 : ($new_datas->{Qcache_hits}) * 100 / ($new_datas->{Qcache_hits} + $new_datas->{Com_select});
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my $exit_code = $self->{perfdata}->threshold_check(value => $prcts{'qcache_hitrate' . ((defined($self->{option_results}->{lookback})) ? '' : '_now' )}, 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("query cache hitrate at %.2f%%", $prcts{'qcache_hitrate' . ((defined($self->{option_results}->{lookback})) ? '' : '_now')})
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);
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$self->{output}->perfdata_add(label => 'qcache_hitrate' . ((defined($self->{option_results}->{lookback})) ? '' : '_now'), unit => '%',
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value => sprintf("%.2f", $prcts{'qcache_hitrate' . ((defined($self->{option_results}->{lookback})) ? '' : '_now')}),
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warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning'),
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critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical'),
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min => 0);
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$self->{output}->perfdata_add(label => 'qcache_hitrate' . ((defined($self->{option_results}->{lookback})) ? '_now' : ''), unit => '%',
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value => sprintf("%.2f", $prcts{'qcache_hitrate' . ((defined($self->{option_results}->{lookback})) ? '_now' : '')}),
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min => 0);
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}
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$self->{statefile_cache}->write(data => $new_datas);
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if (!defined($old_timestamp)) {
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$self->{output}->output_add(severity => 'OK',
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short_msg => "Buffer creation...");
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}
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$self->{output}->display();
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$self->{output}->exit();
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}
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1;
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__END__
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=head1 MODE
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Check hitrate in the Query Cache.
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=over 8
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=item B<--warning>
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Threshold warning.
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=item B<--critical>
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Threshold critical.
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=item B<--lookback>
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Threshold isn't on the percent calculated from the difference ('qcache_hitrate_now').
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=back
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=cut
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@ -48,16 +48,17 @@ sub new {
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$self->{version} = '0.1';
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$self->{version} = '0.1';
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%{$self->{modes}} = (
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%{$self->{modes}} = (
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'connection-time' => 'database::mysql::mode::connectiontime',
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'connection-time' => 'database::mysql::mode::connectiontime',
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'databases-size' => 'database::mysql::mode::databasessize',
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'databases-size' => 'database::mysql::mode::databasessize',
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'queries' => 'database::mysql::mode::queries',
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'queries' => 'database::mysql::mode::queries',
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'slow-queries' => 'database::mysql::mode::slowqueries',
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'slow-queries' => 'database::mysql::mode::slowqueries',
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'threads-connected' => 'database::mysql::mode::threadsconnected',
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'threads-connected' => 'database::mysql::mode::threadsconnected',
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'uptime' => 'database::mysql::mode::uptime',
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'uptime' => 'database::mysql::mode::uptime',
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'open-files' => 'database::mysql::mode::openfiles',
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'open-files' => 'database::mysql::mode::openfiles',
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'innodb-bufferpool-hitrate' => 'database::mysql::mode::innodbbufferpoolhitrate',
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'innodb-bufferpool-hitrate' => 'database::mysql::mode::innodbbufferpoolhitrate',
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'myisam-keycache-hitrate' => 'database::mysql::mode::myisamkeycachehitrate',
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'myisam-keycache-hitrate' => 'database::mysql::mode::myisamkeycachehitrate',
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'replication-master-slave' => 'database::mysql::mode::replicationmasterslave',
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'qcache-hitrate' => 'database::mysql::mode::qcachehitrate',
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'replication-master-slave' => 'database::mysql::mode::replicationmasterslave',
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);
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);
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$self->{sql_modes}{mysqlcmd} = 'database::mysql::mysqlcmd';
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$self->{sql_modes}{mysqlcmd} = 'database::mysql::mysqlcmd';
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