187 lines
7.3 KiB
Perl
187 lines
7.3 KiB
Perl
#
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# Copyright 2020 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::cassandra::jmx::mode::cachesusage;
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use base qw(centreon::plugins::templates::counter);
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use strict;
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use warnings;
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use Digest::MD5 qw(md5_hex);
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sub set_counters {
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my ($self, %options) = @_;
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$self->{maps_counters_type} = [
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{ name => 'ccache', type => 1, cb_prefix_output => 'prefix_ccache_output', message_multiple => 'All caches are ok', skipped_code => { -10 => 1 } },
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];
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$self->{maps_counters}->{ccache} = [
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{ label => 'used', nlabel => 'ccache.utilization.percentage', set => {
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key_values => [ { name => 'Capacity_Value' }, { name => 'Size_Value' }, { name => 'display' } ],
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closure_custom_calc => $self->can('custom_usage_calc'),
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closure_custom_output => $self->can('custom_usage_output'),
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threshold_use => 'prct_used',
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perfdatas => [
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{ label => 'used', value => 'prct_used', template => '%.2f',
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unit => '%', min => 0, max => 100, label_extra_instance => 1, instance_use => 'display' },
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],
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}
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},
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{ label => 'hits', nlabel => 'ccache.hits.percentage', set => {
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key_values => [ { name => 'Requests_Count', diff => 1 }, { name => 'Hits_Count', diff => 1 }, { name => 'display' } ],
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closure_custom_calc => $self->can('custom_hits_calc'),
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output_template => 'Hits = %.2f %%', output_use => 'hits_prct', threshold_use => 'hits_prct',
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perfdatas => [
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{ label => 'hits', value => 'hits_prct', template => '%.2f', min => 0, max => 100,
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unit => '%', label_extra_instance => 1, instance_use => 'display' },
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],
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}
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},
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];
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}
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sub custom_usage_output {
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my ($self, %options) = @_;
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my ($total_size_value, $total_size_unit) = $self->{perfdata}->change_bytes(value => $self->{result_values}->{total});
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my ($total_used_value, $total_used_unit) = $self->{perfdata}->change_bytes(value => $self->{result_values}->{used});
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my ($total_free_value, $total_free_unit) = $self->{perfdata}->change_bytes(value => $self->{result_values}->{free});
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my $msg = sprintf("Usage Total: %s Used: %s (%.2f%%) Free: %s (%.2f%%)",
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$total_size_value . " " . $total_size_unit,
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$total_used_value . " " . $total_used_unit, $self->{result_values}->{prct_used},
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$total_free_value . " " . $total_free_unit, $self->{result_values}->{prct_free});
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return $msg;
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}
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sub custom_usage_calc {
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my ($self, %options) = @_;
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return -10 if ($options{new_datas}->{$self->{instance} . '_Capacity_Value'} <= 0);
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$self->{result_values}->{display} = $options{new_datas}->{$self->{instance} . '_display'};
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$self->{result_values}->{total} = $options{new_datas}->{$self->{instance} . '_Capacity_Value'};
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$self->{result_values}->{used} = $options{new_datas}->{$self->{instance} . '_Size_Value'};
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$self->{result_values}->{free} = $self->{result_values}->{total} - $self->{result_values}->{used};
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$self->{result_values}->{prct_used} = $self->{result_values}->{used} * 100 / $self->{result_values}->{total};
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$self->{result_values}->{prct_free} = 100 - $self->{result_values}->{prct_used};
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return 0;
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}
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sub custom_hits_calc {
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my ($self, %options) = @_;
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$self->{result_values}->{display} = $options{new_datas}->{$self->{instance} . '_display'};
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my $delta_value = $options{new_datas}->{$self->{instance} . '_Hits_Count'} - $options{old_datas}->{$self->{instance} . '_Hits_Count'};
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my $delta_total = $options{new_datas}->{$self->{instance} . '_Requests_Count'} - $options{old_datas}->{$self->{instance} . '_Requests_Count'};
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$self->{result_values}->{hits_prct} = 0;
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if ($delta_total > 0) {
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$self->{result_values}->{hits_prct} = $delta_value * 100 / $delta_total;
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}
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return 0;
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}
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sub new {
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my ($class, %options) = @_;
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my $self = $class->SUPER::new(package => __PACKAGE__, %options, statefile => 1);
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bless $self, $class;
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$options{options}->add_options(arguments => {
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"filter-name:s" => { name => 'filter_name' },
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});
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return $self;
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}
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sub prefix_ccache_output {
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my ($self, %options) = @_;
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return "Cache '" . $options{instance_value}->{display} . "' ";
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}
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sub manage_selection {
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my ($self, %options) = @_;
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$self->{ccache} = {};
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$self->{request} = [
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{ mbean => 'org.apache.cassandra.metrics:name=Requests,scope=*,type=Cache', attributes => [ { name => 'Count' } ] },
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{ mbean => 'org.apache.cassandra.metrics:name=Hits,scope=*,type=Cache', attributes => [ { name => 'Count' } ] },
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{ mbean => 'org.apache.cassandra.metrics:name=Capacity,scope=*,type=Cache', attributes => [ { name => 'Value' } ] }, # bytes
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{ mbean => 'org.apache.cassandra.metrics:name=Size,scope=*,type=Cache', attributes => [ { name => 'Value' } ] }, # bytes
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];
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my $result = $options{custom}->get_attributes(request => $self->{request}, nothing_quit => 1);
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foreach my $mbean (keys %{$result}) {
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$mbean =~ /scope=(.*?)(?:,|$)/;
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my $scope = $1;
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$mbean =~ /name=(.*?)(?:,|$)/;
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my $name = $1;
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if (defined($self->{option_results}->{filter_name}) && $self->{option_results}->{filter_name} ne '' &&
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$scope !~ /$self->{option_results}->{filter_name}/) {
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$self->{output}->output_add(long_msg => "skipping '" . $scope . "': no matching filter.", debug => 1);
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next;
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}
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$self->{ccache}->{$scope} = { display => $scope } if (!defined($self->{ccache}->{$scope}));
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foreach (keys %{$result->{$mbean}}) {
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$self->{ccache}->{$scope}->{$name . '_' . $_} = $result->{$mbean}->{$_};
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}
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}
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if (scalar(keys %{$self->{ccache}}) <= 0) {
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$self->{output}->add_option_msg(short_msg => "No cache found.");
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$self->{output}->option_exit();
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}
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$self->{cache_name} = "cassandra_" . $self->{mode} . '_' . md5_hex($options{custom}->get_connection_info()) . '_' .
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(defined($self->{option_results}->{filter_name}) ? md5_hex($self->{option_results}->{filter_name}) : md5_hex('all')) . '_' .
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(defined($self->{option_results}->{filter_counters}) ? md5_hex($self->{option_results}->{filter_counters}) : md5_hex('all'));
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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 cache usage.
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=over 8
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=item B<--filter-counters>
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Only display some counters (regexp can be used).
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Example: --filter-counters='latency'
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=item B<--filter-name>
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Filter name (can be a regexp).
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=item B<--warning-*> B<--critical-*>
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Thresholds.
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Can be: 'used' (%), 'hits' (%).
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=back
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=cut
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