281 lines
11 KiB
Perl
281 lines
11 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 os::linux::local::mode::cpudetailed;
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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::misc;
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use centreon::plugins::statefile;
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my $maps = [
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{ counter => 'user', output => 'User %.2f %%', position => 1 },
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{ counter => 'nice', output => 'Nice %.2f %%', position => 2 },
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{ counter => 'system', output => 'System %.2f %%', position => 3 },
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{ counter => 'idle', output => 'Idle %.2f %%', position => 4 },
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{ counter => 'wait', output => 'Wait %.2f %%', position => 5 },
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{ counter => 'interrupt', output => 'Interrupt %.2f %%', position => 6 },
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{ counter => 'softirq', output => 'Soft Irq %.2f %%', position => 7 },
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{ counter => 'steal', output => 'Steal %.2f %%', position => 8 },
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{ counter => 'guest', output => 'Guest %.2f %%', position => 9 },
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{ counter => 'guestnice', output => 'Guest Nice %.2f %%', position => 10 },
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];
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sub new {
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my ($class, %options) = @_;
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my $self = $class->SUPER::new(package => __PACKAGE__, %options);
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bless $self, $class;
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$options{options}->add_options(arguments =>
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{
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"hostname:s" => { name => 'hostname' },
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"remote" => { name => 'remote' },
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"ssh-option:s@" => { name => 'ssh_option' },
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"ssh-path:s" => { name => 'ssh_path' },
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"ssh-command:s" => { name => 'ssh_command', default => 'ssh' },
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"timeout:s" => { name => 'timeout', default => 30 },
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"sudo" => { name => 'sudo' },
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"command:s" => { name => 'command', default => 'cat' },
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"command-path:s" => { name => 'command_path' },
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"command-options:s" => { name => 'command_options', default => '/proc/stat 2>&1' },
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});
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foreach (@{$maps}) {
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$options{options}->add_options(arguments => {
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'warning-' . $_->{counter} . ':s' => { name => 'warning_' . $_->{counter} },
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'critical-' . $_->{counter} . ':s' => { name => 'critical_' . $_->{counter} },
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});
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}
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$self->{statefile_cache} = centreon::plugins::statefile->new(%options);
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$self->{hostname} = undef;
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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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$self->SUPER::init(%options);
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foreach (@{$maps}) {
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if (($self->{perfdata}->threshold_validate(label => 'warning-' . $_->{counter}, value => $self->{option_results}->{'warning_' . $_->{counter}})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong warning-" . $_->{counter} . " threshold '" . $self->{option_results}->{'warning_' . $_->{counter}} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'critical-' . $_->{counter}, value => $self->{option_results}->{'critical_' . $_->{counter}})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong critical-" . $_->{counter} . " threshold '" . $self->{option_results}->{'critical_' . $_->{counter}} . "'.");
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$self->{output}->option_exit();
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}
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}
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$self->{statefile_cache}->check_options(%options);
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$self->{hostname} = $self->{option_results}->{hostname};
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if (!defined($self->{hostname})) {
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$self->{hostname} = 'me';
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}
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}
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sub run {
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my ($self, %options) = @_;
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my $stdout = centreon::plugins::misc::execute(output => $self->{output},
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options => $self->{option_results},
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sudo => $self->{option_results}->{sudo},
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command => $self->{option_results}->{command},
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command_path => $self->{option_results}->{command_path},
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command_options => $self->{option_results}->{command_options});
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$self->{statefile_cache}->read(statefile => 'cache_linux_local_' . $self->{hostname} . '_' . $self->{mode});
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# Manage values
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my ($buffer_creation, $exit) = (0, 0);
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my $save_datas = {};
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my $new_datas = {};
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my $old_datas = {};
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my ($total_datas, $total_cpu_num) = ({}, 0);
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foreach my $line (split(/\n/, $stdout)) {
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next if ($line !~ /cpu(\d+)\s+/);
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my $cpu_number = $1;
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my @values = split /\s+/, $line;
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foreach (@{$maps}) {
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next if (!defined($values[$_->{position}]));
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if (!defined($new_datas->{$cpu_number})) {
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$new_datas->{$cpu_number} = { total => 0 };
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$old_datas->{$cpu_number} = { total => 0 };
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}
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$new_datas->{$cpu_number}->{$_->{counter}} = $values[$_->{position}];
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$save_datas->{'cpu' . $cpu_number . '_' . $_->{counter}} = $values[$_->{position}];
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my $tmp_value = $self->{statefile_cache}->get(name => 'cpu' . $cpu_number . '_' . $_->{counter});
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if (!defined($tmp_value)) {
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$buffer_creation = 1;
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next;
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}
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if ($new_datas->{$cpu_number}->{$_->{counter}} < $tmp_value) {
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$buffer_creation = 1;
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next;
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}
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$exit = 1;
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$old_datas->{$cpu_number}->{$_->{counter}} = $tmp_value;
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$new_datas->{$cpu_number}->{total} += $new_datas->{$cpu_number}->{$_->{counter}};
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$old_datas->{$cpu_number}->{total} += $old_datas->{$cpu_number}->{$_->{counter}};
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}
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}
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$self->{statefile_cache}->write(data => $save_datas);
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if ($buffer_creation == 1) {
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$self->{output}->output_add(severity => 'OK',
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short_msg => "Buffer creation...");
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if ($exit == 0) {
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$self->{output}->display();
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$self->{output}->exit();
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}
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}
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$self->{output}->output_add(severity => 'OK',
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short_msg => "CPUs usages are ok.");
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foreach my $cpu_number (sort keys(%$new_datas)) {
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# In buffer creation. New cpu
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next if (scalar(keys %{$old_datas->{$cpu_number}}) <= 1);
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if ($new_datas->{$cpu_number}->{total} - $old_datas->{$cpu_number}->{total} == 0) {
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$self->{output}->output_add(severity => 'OK',
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short_msg => "Counter not moved. Have to wait.");
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$self->{output}->display();
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$self->{output}->exit();
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}
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$total_cpu_num++;
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my @exits;
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foreach (@{$maps}) {
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next if (!defined($new_datas->{$cpu_number}->{$_->{counter}}));
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my $value = (($new_datas->{$cpu_number}->{$_->{counter}} - $old_datas->{$cpu_number}->{$_->{counter}}) * 100) /
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($new_datas->{$cpu_number}->{total} - $old_datas->{$cpu_number}->{total});
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push @exits, $self->{perfdata}->threshold_check(value => $value, threshold => [ { label => 'critical-' . $_->{counter}, 'exit_litteral' => 'critical' }, { label => 'warning-' . $_->{counter}, 'exit_litteral' => 'warning' }]);
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}
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$exit = $self->{output}->get_most_critical(status => [ @exits ]);
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my $str_output = "CPU '$cpu_number' Usage: ";
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my $str_append = '';
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foreach (@{$maps}) {
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next if (!defined($new_datas->{$cpu_number}->{$_->{counter}}));
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my $value = (($new_datas->{$cpu_number}->{$_->{counter}} - $old_datas->{$cpu_number}->{$_->{counter}}) * 100) /
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($new_datas->{$cpu_number}->{total} - $old_datas->{$cpu_number}->{total});
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$total_datas->{$_->{counter}} = 0 if (!defined($total_datas->{$_->{counter}}));
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$total_datas->{$_->{counter}} += $value;
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$str_output .= $str_append . sprintf($_->{output}, $value);
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$str_append = ', ';
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my $warning = $self->{perfdata}->get_perfdata_for_output(label => 'warning-' . $_->{counter});
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my $critical = $self->{perfdata}->get_perfdata_for_output(label => 'critical-' . $_->{counter});
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$self->{output}->perfdata_add(label => 'cpu' . $cpu_number . '_' . $_->{counter}, unit => '%',
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value => sprintf("%.2f", $value),
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warning => $warning,
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critical => $critical,
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min => 0, max => 100);
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}
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$self->{output}->output_add(long_msg => $str_output);
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if (!$self->{output}->is_status(value => $exit, compare => 'ok', litteral => 1)) {
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$self->{output}->output_add(severity => $exit,
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short_msg => $str_output);
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}
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}
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# We can display a total (some buffer creation and counters have moved)
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if ($total_cpu_num != 0) {
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foreach my $counter (sort keys %{$total_datas}) {
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$self->{output}->perfdata_add(label => 'total_cpu_' . $counter . '_avg', unit => '%',
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value => sprintf("%.2f", $total_datas->{$counter} / $total_cpu_num),
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min => 0, max => 100);
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}
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}
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$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 average usage for each CPUs (need '/proc/stat' file)
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(User, Nice, System, Idle, Wait, Interrupt, SoftIRQ, Steal, Guest, GuestNice)
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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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Can be: 'user', 'nice', 'system', 'idle', 'wait', 'interrupt', 'softirq', 'steal', 'guest', 'guestnice'.
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=item B<--critical-*>
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Threshold critical in percent.
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Can be: 'user', 'nice', 'system', 'idle', 'wait', 'interrupt', 'softirq', 'steal', 'guest', 'guestnice'.
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=item B<--remote>
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Execute command remotely in 'ssh'.
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=item B<--hostname>
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Hostname to query (need --remote).
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=item B<--ssh-option>
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Specify multiple options like the user (example: --ssh-option='-l=centreon-engine' --ssh-option='-p=52').
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=item B<--ssh-path>
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Specify ssh command path (default: none)
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=item B<--ssh-command>
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Specify ssh command (default: 'ssh'). Useful to use 'plink'.
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=item B<--timeout>
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Timeout in seconds for the command (Default: 30).
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=item B<--sudo>
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Use 'sudo' to execute the command.
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=item B<--command>
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Command to get information (Default: 'cat').
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Can be changed if you have output in a file.
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=item B<--command-path>
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Command path (Default: none).
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=item B<--command-options>
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Command options (Default: '/proc/stat 2>&1').
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=back
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=cut
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