329 lines
13 KiB
Perl
329 lines
13 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::diskio;
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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 centreon::plugins::misc;
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use Digest::MD5 qw(md5_hex);
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sub custom_usage_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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$self->{result_values}->{usage_persecond} = ($options{new_datas}->{$self->{instance} . '_' . $options{extra_options}->{label_ref} . '_sectors'} - $options{old_datas}->{$self->{instance} . '_' . $options{extra_options}->{label_ref} . '_sectors'})
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* $self->{instance_mode}->{option_results}->{bytes_per_sector} / $options{delta_time};
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return 0;
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}
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sub custom_utils_calc {
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my ($self, %options) = @_;
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$self->{result_values}->{display} = $options{new_datas}->{$self->{instance} . '_display'};
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my $delta_ms =
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$self->{instance_mode}->{option_results}->{interrupt_frequency} *
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(
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($options{new_datas}->{$self->{instance} . '_cpu_idle'} - $options{old_datas}->{$self->{instance} . '_cpu_idle'}) +
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($options{new_datas}->{$self->{instance} . '_cpu_user'} - $options{old_datas}->{$self->{instance} . '_cpu_user'}) +
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($options{new_datas}->{$self->{instance} . '_cpu_iowait'} - $options{old_datas}->{$self->{instance} . '_cpu_iowait'}) +
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($options{new_datas}->{$self->{instance} . '_cpu_system'} - $options{old_datas}->{$self->{instance} . '_cpu_system'})
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)
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/ $options{new_datas}->{$self->{instance} . '_cpu_total'} / 100;
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$self->{result_values}->{utils} = 0;
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if ($delta_ms != 0) {
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$self->{result_values}->{utils} = 100 * ($options{new_datas}->{$self->{instance} . '_ticks'} - $options{old_datas}->{$self->{instance} . '_ticks'}) / $delta_ms;
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$self->{result_values}->{utils} = 100 if ($self->{result_values}->{utils} > 100);
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}
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return 0;
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}
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sub set_counters {
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my ($self, %options) = @_;
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$self->{maps_counters_type} = [
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{ name => 'device', type => 1, cb_prefix_output => 'prefix_device_output', message_multiple => 'All devices are ok', skipped_code => { -10 => 1 } }
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];
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$self->{maps_counters}->{device} = [
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{ label => 'read-usage', nlabel => 'device.io.read.usage.bytespersecond', set => {
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key_values => [ { name => 'read_sectors', diff => 1 }, { name => 'display' } ],
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closure_custom_calc => $self->can('custom_usage_calc'), closure_custom_calc_extra_options => { label_ref => 'read' },
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output_template => 'read I/O : %s %s/s',
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output_change_bytes => 1, per_second => 1,
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output_use => 'usage_persecond', threshold_use => 'usage_persecond',
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perfdatas => [
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{ label => 'readio', value => 'usage_persecond', template => '%d',
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unit => 'B/s', min => 0, label_extra_instance => 1, instance_use => 'display' },
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],
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}
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},
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{ label => 'write-usage', nlabel => 'device.io.write.usage.bytespersecond', set => {
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key_values => [ { name => 'write_sectors', diff => 1 }, { name => 'display' } ],
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closure_custom_calc => $self->can('custom_usage_calc'), closure_custom_calc_extra_options => { label_ref => 'write' },
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output_template => 'write I/O : %s %s/s',
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output_change_bytes => 1, per_second => 1,
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output_use => 'usage_persecond', threshold_use => 'usage_persecond',
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perfdatas => [
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{ label => 'writeio', value => 'usage_persecond', template => '%d',
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unit => 'B/s', min => 0, label_extra_instance => 1, instance_use => 'display' },
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],
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}
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},
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{ label => 'read-time', nlabel => 'device.io.read.time.milliseconds', set => {
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key_values => [ { name => 'read_ms', diff => 1 }, { name => 'display' } ],
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output_template => 'read time : %.2f ms',
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perfdatas => [
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{ label => 'readtime', value => 'read_ms_absolute', template => '%.2f',
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unit => 'ms', min => 0, label_extra_instance => 1, instance_use => 'display_absolute' },
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],
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}
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},
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{ label => 'write-time', nlabel => 'device.io.write.time.milliseconds', set => {
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key_values => [ { name => 'write_ms', diff => 1 }, { name => 'display' } ],
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output_template => 'write time : %.2f ms',
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perfdatas => [
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{ label => 'writetime', value => 'write_ms_absolute', template => '%.2f',
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unit => 'ms', min => 0, label_extra_instance => 1, instance_use => 'display_absolute' },
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],
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}
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},
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{ label => 'utils', nlabel => 'device.io.utils.percentage', set => {
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key_values => [
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{ name => 'cpu_total', diff => 1 },
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{ name => 'cpu_iowait', diff => 1 },
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{ name => 'cpu_user', diff => 1 },
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{ name => 'cpu_system', diff => 1 },
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{ name => 'cpu_idle', diff => 1 },
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{ name => 'ticks', diff => 1 },
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{ name => 'display' }
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],
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closure_custom_calc => $self->can('custom_utils_calc'),
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per_second => 1,
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output_template => '%%utils: %.2f %%',
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output_use => 'utils', threshold_use => 'utils',
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perfdatas => [
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{ label => 'utils', value => 'utils', template => '%.2f',
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unit => '%', min => 0, max => 100, label_extra_instance => 1, instance_use => 'display' },
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],
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}
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},
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];
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}
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sub prefix_device_output {
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my ($self, %options) = @_;
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return "Device '" . $options{instance_value}->{display} . "' ";
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}
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sub new {
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my ($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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'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 => 'tail' },
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'command-path:s' => { name => 'command_path', },
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'command-options:s' => { name => 'command_options', default => '-n +1 /proc/stat /proc/diskstats 2>&1' },
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'name:s' => { name => 'name' },
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'regexp' => { name => 'use_regexp' },
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'regexp-isensitive' => { name => 'use_regexpi' },
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'interrupt-frequency:s' => { name => 'interrupt_frequency', default => 1000 },
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'bytes_per_sector:s' => { name => 'bytes_per_sector', default => 512 },
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'skip' => { name => 'skip' },
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});
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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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$self->SUPER::check_options(%options);
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$self->{hostname} = $self->{option_results}->{hostname};
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if (!defined($self->{hostname})) {
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$self->{hostname} = 'me';
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}
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}
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sub manage_selection {
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my ($self, %options) = @_;
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my $stdout = centreon::plugins::misc::execute(
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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 => $self->{option_results}->{command_options}
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);
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$stdout =~ /\/proc\/stat(.*?)\/proc\/diskstats.*?\n(.*)/msg;
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my ($cpu_parts, $disk_parts) = ($1, $2);
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# Manage CPU Parts
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$cpu_parts =~ /^cpu\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)/ms;
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my ($cpu_idle, $cpu_system, $cpu_user, $cpu_iowait) = ($4, $3, $1, $5);
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my $cpu_total = 0;
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while ($cpu_parts =~ /^cpu(\d+)/msg) {
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$cpu_total++;
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}
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$self->{device} = {};
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while ($disk_parts =~ /^\s*\S+\s+\S+\s+(\S+)\s+\S+\s+\S+\s+(\S+)\s+(\S+)\s+\S+\s+\S+\s+(\S+)\s+(\S+)\s+\S+\s+\S+\s+(\S+)\s*$/msg) {
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my ($partition_name, $read_sector, $write_sector, $read_ms, $write_ms, $ms_ticks) = ($1, $2, $4, $3, $5, $6);
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next if (defined($self->{option_results}->{name}) && defined($self->{option_results}->{use_regexp}) && defined($self->{option_results}->{use_regexpi})
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&& $partition_name !~ /$self->{option_results}->{name}/i);
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next if (defined($self->{option_results}->{name}) && defined($self->{option_results}->{use_regexp}) && !defined($self->{option_results}->{use_regexpi})
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&& $partition_name !~ /$self->{option_results}->{name}/);
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next if (defined($self->{option_results}->{name}) && !defined($self->{option_results}->{use_regexp}) && !defined($self->{option_results}->{use_regexpi})
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&& $partition_name ne $self->{option_results}->{name});
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if (defined($self->{option_results}->{skip}) && $read_sector == 0 && $write_sector == 0) {
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$self->{output}->output_add(long_msg => "skipping device '" . $partition_name . "': no read/write IO.", debug => 1);
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next;
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}
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$self->{device}->{$partition_name} = {
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display => $partition_name,
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read_sectors => $read_sector,
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write_sectors => $write_sector,
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read_ms => $read_ms,
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write_ms => $write_ms,
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ticks => $ms_ticks,
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cpu_total => $cpu_total,
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cpu_system => $cpu_system,
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cpu_idle => $cpu_idle,
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cpu_user => $cpu_user,
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cpu_iowait => $cpu_iowait,
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};
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}
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if (scalar(keys %{$self->{device}}) <= 0) {
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if (defined($self->{option_results}->{name})) {
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$self->{output}->add_option_msg(short_msg => "No device found for name '" . $self->{option_results}->{name} . "'.");
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} else {
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$self->{output}->add_option_msg(short_msg => "No device found.");
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}
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$self->{output}->option_exit();
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}
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$self->{cache_name} = 'cache_linux_local_' . $self->{hostname} . '_' . $self->{mode} . '_' . (defined($self->{option_results}->{name}) ? md5_hex($self->{option_results}->{name}) : 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 some disk io counters:
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read and writes bytes per seconds, milliseconds time spent reading and writing, %util (like iostat)
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=over 8
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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: 'tail').
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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: '-n +1 /proc/stat /proc/diskstats 2>&1').
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=item B<--warning-*> B<--critical-*>
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Thresholds.
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Can be: 'read-usage', 'write-usage', 'read-time', 'write-time',
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'utils'.
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=item B<--name>
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Set the partition name (empty means 'check all partitions')
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=item B<--regexp>
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Allows to use regexp to filter partition name (with option --name).
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=item B<--regexp-isensitive>
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Allows to use regexp non case-sensitive (with --regexp).
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=item B<--bytes-per-sector>
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Bytes per sector (Default: 512)
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=item B<--interrupt-frequency>
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Linux Kernel Timer Interrupt Frequency (Default: 1000)
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=item B<--skip>
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Skip partitions with 0 sectors read/write.
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=back
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=cut
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