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enh mysql threads mode (#2510)

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qgarnier 2021-01-13 15:47:24 +01:00 committed by GitHub
parent 12e829471d
commit b72917a0ec
1 changed files with 67 additions and 17 deletions
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84
centreon-plugins/database/mysql/mode/threadsconnected.pm
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@ -28,20 +28,29 @@ use warnings;
sub custom_usage_output {
my ($self, %options) = @_;
my $msg = sprintf("Client Connection Threads Total: %s Used: %s (%.2f%%) Free: %s (%.2f%%)",
return sprintf(
'Client connected threads total: %s used: %s (%.2f%%) free: %s (%.2f%%)',
$self->{result_values}->{total},
$self->{result_values}->{used},
$self->{result_values}->{prct_used},
$self->{result_values}->{free},
$self->{result_values}->{prct_free});
return $msg;
$self->{result_values}->{prct_free}
);
}
sub prefix_databse_output {
my ($self, %options) = @_;
return "Database '" . $options{instance_value}->{name} . "' ";
}
sub set_counters {
my ($self, %options) = @_;
$self->{maps_counters_type} = [
{ name => 'global', type => 0, message_separator => ' - ', skipped_code => { -10 => 1 } },
{ name => 'databases', type => 1, cb_prefix_output => 'prefix_database_output', skipped_code => { -10 => 1 } }
];
$self->{maps_counters}->{global} = [
@ -49,33 +58,66 @@ sub set_counters {
key_values => [ { name => 'used' }, { name => 'free' }, { name => 'prct_used' }, { name => 'prct_free' }, { name => 'total' } ],
closure_custom_output => $self->can('custom_usage_output'),
perfdatas => [
{ label => 'threads_connected', value => 'used', template => '%d', min => 0, max => 'total' },
],
{ template => '%d', min => 0, max => 'total' },
]
}
},
{ label => 'usage-prct', display_ok => 0, nlabel => 'threads.connected.percentage', set => {
key_values => [ { name => 'prct_used' } ],
output_template => 'Client Connection Threads Used : %.2f %%',
{ label => 'usage-prct', nlabel => 'threads.connected.percentage', display_ok => 0, set => {
key_values => [ { name => 'prct_used' }, { name => 'free' }, { name => 'used' }, { name => 'prct_free' }, { name => 'total' } ],
closure_custom_output => $self->can('custom_usage_output'),
perfdatas => [
{ label => 'threads_connected_prct', value => 'prct_used', template => '%.2f', min => 0, max => 100,
unit => '%' },
],
{ template => '%.2f', min => 0, max => 100, unit => '%' }
]
}
},
}
];
$self->{maps_counters}->{databases} = [
{ label => 'database-threads-connected', nlabel => 'database.threads.connected.count', display_ok => 0, set => {
key_values => [ { name => 'threads_connected' } ],
output_template => 'threads connected: %s',
perfdatas => [
{ template => '%d', min => 0, label_extra_instance => 1 }
]
}
}
];
}
sub new {
my ($class, %options) = @_;
my $self = $class->SUPER::new(package => __PACKAGE__, %options);
my $self = $class->SUPER::new(package => __PACKAGE__, %options, force_new_perfdata => 1);
bless $self, $class;
$options{options}->add_options(arguments => {
$options{options}->add_options(arguments => {
'add-databases' => { name => 'add_databases' }
});
return $self;
}
sub add_databases {
my ($self, %options) = @_;
$options{sql}->query(query => q{
SELECT
schema_name,
SUM(case when DB is not null then 1 else 0 end) as numbers
FROM information_schema.schemata LEFT JOIN information_schema.processlist ON schemata.schema_name = DB
GROUP BY schemata.schema_name
});
$self->{databases} = {};
my $result = $options{sql}->fetchall_arrayref();
foreach my $row (@$result) {
$self->{databases}->{ $row->[0] } = {
name => $row->[0],
threads_connected => $row->[1]
};
}
}
sub manage_selection {
my ($self, %options) = @_;
@ -116,7 +158,7 @@ sub manage_selection {
}
if (scalar(keys %$infos) == 0) {
$self->{output}->add_option_msg(short_msg => "Cannot get number of open connections.");
$self->{output}->add_option_msg(short_msg => 'Cannot get number of open connections.');
$self->{output}->option_exit();
}
@ -126,8 +168,12 @@ sub manage_selection {
used => $infos->{threads_connected},
free => $infos->{max_connections} - $infos->{threads_connected},
prct_used => $prct_used,
prct_free => 100 - $prct_used,
prct_free => 100 - $prct_used
};
if (defined($self->{option_results}->{add_databases})) {
$self->add_databases(sql => $options{sql});
}
}
1;
@ -140,10 +186,14 @@ Check number of open connections.
=over 8
=item B<--add-databases>
Add threads by databases.
=item B<--warning-*> B<--critical-*>
Thresholds.
Can be: 'usage', 'usage-prct' (%).
Can be: 'usage', 'usage-prct' (%), 'database-threads-connected'.
=back