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centreon-plugins
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Fix #5444

This commit is contained in:
Quentin garnier 2014-04-14 16:28:25 +02:00
parent 46930a521f
commit d2e14ed91b
4 changed files with 196 additions and 13 deletions
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1
database/mysql/mode/innodbbufferpoolhitrate.pm
View File

@ -109,7 +109,6 @@ sub run {
$new_datas->{Innodb_buffer_pool_read_requests} >= $old_read_request &&
$new_datas->{Innodb_buffer_pool_reads} >= $old_read) {
my %prcts = ();
my $total_read_requests = $new_datas->{Innodb_buffer_pool_read_requests} - $old_read_request;
my $total_read_disk = $new_datas->{Innodb_buffer_pool_reads} - $old_read;

2
database/mysql/mode/openfiles.pm
View File

@ -85,7 +85,7 @@ sub run {
$self->{sql}->query(query => q{SHOW VARIABLES LIKE 'open_files_limit'});
my ($dummy, $open_files_limit) = $self->{sql}->fetchrow_array();
if (!defined($open_files_limit)) {
$self->{output}->add_option_msg(short_msg => "Cannot get ope files limit.");
$self->{output}->add_option_msg(short_msg => "Cannot get open files limit.");
$self->{output}->option_exit();
}
$self->{sql}->query(query => q{SHOW /*!50000 global */ STATUS LIKE 'Open_files'});

183
database/mysql/mode/qcachehitrate.pm Normal file
View File

@ -0,0 +1,183 @@
################################################################################
# Copyright 2005-2013 MERETHIS
# Centreon is developped by : Julien Mathis and Romain Le Merlus under
# GPL Licence 2.0.
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation ; either version 2 of the License.
#
# This program is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, see <http://www.gnu.org/licenses>.
#
# Linking this program statically or dynamically with other modules is making a
# combined work based on this program. Thus, the terms and conditions of the GNU
# General Public License cover the whole combination.
#
# As a special exception, the copyright holders of this program give MERETHIS
# permission to link this program with independent modules to produce an executable,
# regardless of the license terms of these independent modules, and to copy and
# distribute the resulting executable under terms of MERETHIS choice, provided that
# MERETHIS also meet, for each linked independent module, the terms and conditions
# of the license of that module. An independent module is a module which is not
# derived from this program. If you modify this program, you may extend this
# exception to your version of the program, but you are not obliged to do so. If you
# do not wish to do so, delete this exception statement from your version.
#
# For more information : contact@centreon.com
# Authors : Quentin Garnier <qgarnier@merethis.com>
#
####################################################################################
package database::mysql::mode::qcachehitrate;
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);
bless $self, $class;
$self->{version} = '1.0';
$options{options}->add_options(arguments =>
{
"warning:s" => { name => 'warning', },
"critical:s" => { name => 'critical', },
"lookback" => { name => 'lookback', },
});
$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 WHERE Variable_name IN ('Com_select', 'Qcache_hits')});
my $new_datas = {Com_select => undef, Qcache_hits => undef};
my $result = $self->{sql}->fetchall_arrayref();
foreach my $row (@{$result}) {
$new_datas->{$$row[0]} = $$row[1];
}
foreach (keys %$new_datas) {
if (!defined($new_datas->{$_})) {
$self->{output}->add_option_msg(short_msg => "Cannot get '$_' variable.");
$self->{output}->option_exit();
}
}
$self->{sql}->query(query => q{SHOW VARIABLES WHERE Variable_name IN ('have_query_cache', 'query_cache_size')});
my ($dummy, $have_query_cache) = $self->{sql}->fetchrow_array();
if (!defined($have_query_cache)) {
$self->{output}->add_option_msg(short_msg => "Cannot get have_query_cache variable.");
$self->{output}->option_exit();
}
($dummy, my $query_cache_size) = $self->{sql}->fetchrow_array();
if (!defined($query_cache_size)) {
$self->{output}->add_option_msg(short_msg => "Cannot get query_cache_size variable.");
$self->{output}->option_exit();
}
if ($have_query_cache !~ /^yes$/i || $query_cache_size == 0) {
$self->{output}->output_add(severity => 'OK',
short_msg => "Query cache is turned off.");
$self->{output}->display();
$self->{output}->exit();
}
$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();
my $old_com_select = $self->{statefile_cache}->get(name => 'Com_select');
my $old_qcache_hits = $self->{statefile_cache}->get(name => 'Qcache_hits');
if (defined($old_com_select) && defined($old_qcache_hits) &&
$new_datas->{Com_select} >= $old_com_select &&
$new_datas->{Qcache_hits} >= $old_qcache_hits) {
my %prcts = ();
my $total_select_requests = ($new_datas->{Com_select} - $old_com_select) + ($new_datas->{Qcache_hits} - $old_qcache_hits);
my $total_hits = $new_datas->{Qcache_hits} - $old_qcache_hits;
$prcts{qcache_hitrate_now} = ($total_select_requests == 0) ? 100 : ($total_hits) * 100 / $total_select_requests;
$prcts{qcache_hitrate} = (($new_datas->{Qcache_hits} + $new_datas->{Com_select}) == 0) ? 100 : ($new_datas->{Qcache_hits}) * 100 / ($new_datas->{Qcache_hits} + $new_datas->{Com_select});
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' } ]);
$self->{output}->output_add(severity => $exit_code,
short_msg => sprintf("query cache hitrate at %.2f%%", $prcts{'qcache_hitrate' . ((defined($self->{option_results}->{lookback})) ? '' : '_now')})
);
$self->{output}->perfdata_add(label => 'qcache_hitrate' . ((defined($self->{option_results}->{lookback})) ? '' : '_now'), unit => '%',
value => sprintf("%.2f", $prcts{'qcache_hitrate' . ((defined($self->{option_results}->{lookback})) ? '' : '_now')}),
warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning'),
critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical'),
min => 0);
$self->{output}->perfdata_add(label => 'qcache_hitrate' . ((defined($self->{option_results}->{lookback})) ? '_now' : ''), unit => '%',
value => sprintf("%.2f", $prcts{'qcache_hitrate' . ((defined($self->{option_results}->{lookback})) ? '_now' : '')}),
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 hitrate in the Query Cache.
=over 8
=item B<--warning>
Threshold warning.
=item B<--critical>
Threshold critical.
=item B<--lookback>
Threshold isn't on the percent calculated from the difference ('qcache_hitrate_now').
=back
=cut

1
database/mysql/plugin.pm
View File

@ -57,6 +57,7 @@ sub new {
'open-files' => 'database::mysql::mode::openfiles',
'innodb-bufferpool-hitrate' => 'database::mysql::mode::innodbbufferpoolhitrate',
'myisam-keycache-hitrate' => 'database::mysql::mode::myisamkeycachehitrate',
'qcache-hitrate' => 'database::mysql::mode::qcachehitrate',
'replication-master-slave' => 'database::mysql::mode::replicationmasterslave',
);
$self->{sql_modes}{mysqlcmd} = 'database::mysql::mysqlcmd';