386 lines
18 KiB
Perl
386 lines
18 KiB
Perl
#
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# Copyright 2019 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::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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use Digest::MD5 qw(md5_hex);
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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 => '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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"warning-bytes-read:s" => { name => 'warning_bytes_read' },
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"critical-bytes-read:s" => { name => 'critical_bytes_read' },
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"warning-bytes-write:s" => { name => 'warning_bytes_write' },
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"critical-bytes-write:s" => { name => 'critical_bytes_write' },
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"warning-utils:s" => { name => 'warning_utils' },
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"critical-utils:s" => { name => 'critical_utils' },
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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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$self->{result} = { cpu => {}, total_cpu => 0, disks => {} };
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$self->{hostname} = undef;
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$self->{statefile_value} = centreon::plugins::statefile->new(%options);
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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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$self->SUPER::init(%options);
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if (($self->{perfdata}->threshold_validate(label => 'warning-bytes-read', value => $self->{option_results}->{warning_bytes_read})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong warning-bytes-read threshold '" . $self->{option_results}->{warning_bytes_read} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'critical-bytes-read', value => $self->{option_results}->{critical_bytes_read})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong critical-bytes-read threshold '" . $self->{option_results}->{critical_bytes_read} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'warning-bytes-write', value => $self->{option_results}->{warning_bytes_write})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong warning-bytes-write threshold '" . $self->{option_results}->{warning_bytes_write} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'critical-bytes-write', value => $self->{option_results}->{critical_bytes_write})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong critical-bytes-write threshold '" . $self->{option_results}->{critical_bytes_writes} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'warning-utils', value => $self->{option_results}->{warning_utils})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong warning-utils threshold '" . $self->{option_results}->{warning_utils} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'critical-utils', value => $self->{option_results}->{critical_utils})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong critical-utils threshold '" . $self->{option_results}->{critical_utils} . "'.");
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$self->{output}->option_exit();
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}
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$self->{statefile_value}->check_options(%options);
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$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(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 => $self->{option_results}->{command_options});
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$stdout =~ /\/proc\/stat(.*)\/proc\/diskstats(.*)/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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$self->{result}->{cpu}->{idle} = $4;
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$self->{result}->{cpu}->{system} = $3;
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$self->{result}->{cpu}->{user} = $1;
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$self->{result}->{cpu}->{iowait} = $5;
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while ($cpu_parts =~ /^cpu(\d+)/msg) {
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$self->{result}->{total_cpu}++;
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}
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# Manage Disk Parts
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while ($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) = ($3, $6, $10, $7, $11, $13);
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next if (defined($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 partition '" . $partition_name . "': no read/write IO.");
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next;
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}
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$self->{result}->{disks}->{$partition_name} = { read_sectors => $read_sector, write_sectors => $write_sector,
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read_ms => $read_ms, write_ms => $write_ms, ticks => $ms_ticks};
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}
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if (scalar(keys %{$self->{result}->{disks}}) <= 0) {
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if (defined($self->{option_results}->{name})) {
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$self->{output}->add_option_msg(short_msg => "No partition found for name '" . $self->{option_results}->{name} . "'.");
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} else {
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$self->{output}->add_option_msg(short_msg => "No partition found.");
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}
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$self->{output}->option_exit();
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}
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}
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sub run {
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my ($self, %options) = @_;
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$self->manage_selection();
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my $new_datas = {};
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$self->{statefile_value}->read(statefile => "cache_linux_local_" . $self->{hostname} . '_' . $self->{mode} . '_' . (defined($self->{option_results}->{name}) ? md5_hex($self->{option_results}->{name}) : md5_hex('all')));
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$new_datas->{last_timestamp} = time();
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my $old_timestamp = $self->{statefile_value}->get(name => 'last_timestamp');
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if (!defined($self->{option_results}->{name}) || defined($self->{option_results}->{use_regexp})) {
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$self->{output}->output_add(severity => 'OK',
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short_msg => 'All partitions are ok.');
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}
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foreach my $name (sort(keys %{$self->{result}->{disks}})) {
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my $old_datas = {};
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my $next = 0;
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foreach (keys %{$self->{result}->{disks}->{$name}}) {
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$new_datas->{$_ . '_' . $name} = $self->{result}->{disks}->{$name}->{$_};
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$old_datas->{$_ . '_' . $name} = $self->{statefile_value}->get(name => $_ . '_' . $name);
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if (!defined($old_datas->{$_ . '_' . $name})) {
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$next = 1;
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} elsif ($new_datas->{$_ . '_' . $name} < $old_datas->{$_ . '_' . $name}) {
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# We set 0. has reboot
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$old_datas->{$_ . '_' . $name} = 0;
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}
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}
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foreach (keys %{$self->{result}->{cpu}}) {
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$new_datas->{'cpu_' . $_} = $self->{result}->{cpu}->{$_};
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$old_datas->{'cpu_' . $_} = $self->{statefile_value}->get(name => 'cpu_' . $_);
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if (!defined($old_datas->{'cpu_' . $_})) {
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$next = 1;
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} elsif ($new_datas->{'cpu_' . $_} < $old_datas->{'cpu_' . $_}) {
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# We set 0. has reboot
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$old_datas->{'cpu_' . $_} = 0;
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}
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}
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if (!defined($old_timestamp) || $next == 1) {
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next;
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}
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my $time_delta = $new_datas->{last_timestamp} - $old_timestamp;
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if ($time_delta <= 0) {
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# At least one second. two fast calls ;)
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$time_delta = 1;
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}
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############
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# Do calc
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my $read_bytes_per_seconds = ($new_datas->{'read_sectors_' . $name} - $old_datas->{'read_sectors_' . $name}) * $self->{option_results}->{bytes_per_sector} / $time_delta;
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my $write_bytes_per_seconds = ($new_datas->{'write_sectors_' . $name} - $old_datas->{'write_sectors_' . $name}) * $self->{option_results}->{bytes_per_sector} / $time_delta;
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my $read_ms = $new_datas->{'read_ms_' . $name} - $old_datas->{'read_ms_' . $name};
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my $write_ms = $new_datas->{'write_ms_' . $name} - $old_datas->{'write_ms_' . $name};
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my $delta_ms = $self->{option_results}->{interrupt_frequency} * (($new_datas->{cpu_idle} + $new_datas->{cpu_iowait} + $new_datas->{cpu_user} + $new_datas->{cpu_system})
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-
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($old_datas->{cpu_idle} + $old_datas->{cpu_iowait} + $old_datas->{cpu_user} + $old_datas->{cpu_system}))
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/ $self->{result}->{total_cpu} / 100;
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my $utils = 100 * ($new_datas->{'ticks_' . $name} - $old_datas->{'ticks_' . $name}) / $delta_ms;
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if ($utils > 100) {
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$utils = 100;
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}
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###########
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# Manage Output
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###########
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my $exit1 = $self->{perfdata}->threshold_check(value => $read_bytes_per_seconds, threshold => [ { label => 'critical-bytes-read', 'exit_litteral' => 'critical' }, { label => 'warning-bytes-read', exit_litteral => 'warning' } ]);
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my $exit2 = $self->{perfdata}->threshold_check(value => $write_bytes_per_seconds, threshold => [ { label => 'critical-bytes-write', 'exit_litteral' => 'critical' }, { label => 'warning-bytes-write', exit_litteral => 'warning' } ]);
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my $exit3 = $self->{perfdata}->threshold_check(value => $utils, threshold => [ { label => 'critical-utils', 'exit_litteral' => 'critical' }, { label => 'warning-utils', exit_litteral => 'warning' } ]);
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my $exit = $self->{output}->get_most_critical(status => [ $exit1, $exit2, $exit3 ]);
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my ($read_value, $read_unit) = $self->{perfdata}->change_bytes(value => $read_bytes_per_seconds);
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my ($write_value, $write_unit) = $self->{perfdata}->change_bytes(value => $write_bytes_per_seconds);
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$self->{output}->output_add(long_msg => sprintf("Partition '%s' Read I/O : %s/s, Write I/O : %s/s, Write Time : %s ms, Read Time : %s ms, %%Utils: %.2f %%", $name,
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$read_value . $read_unit,
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$write_value . $write_unit,
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$read_ms, $write_ms, $utils
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));
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if (!$self->{output}->is_status(value => $exit, compare => 'ok', litteral => 1) || (defined($self->{option_results}->{name}) && !defined($self->{option_results}->{use_regexp}))) {
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$self->{output}->output_add(severity => $exit,
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short_msg => sprintf("Partition '%s' Read I/O : %s/s, Write I/O : %s/s, Write Time : %s ms, Read Time : %s ms, %%Utils: %.2f %%", $name,
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$read_value . $read_unit,
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$write_value . $write_unit,
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$read_ms, $write_ms, $utils
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));
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}
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my $extra_label = '';
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$extra_label = '_' . $name if (!defined($self->{option_results}->{name}) || defined($self->{option_results}->{use_regexp}));
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$self->{output}->perfdata_add(label => 'readio' . $extra_label, unit => 'B/s',
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value => sprintf("%.2f", $read_bytes_per_seconds),
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warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-bytes-read'),
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critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-bytes-read'),
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min => 0);
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$self->{output}->perfdata_add(label => 'writeio' . $extra_label, unit => 'B/s',
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value => sprintf("%.2f", $write_bytes_per_seconds),
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warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-bytes-write'),
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critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-bytes-write'),
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min => 0);
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$self->{output}->perfdata_add(label => 'readtime' . $extra_label, unit => 'ms',
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value => $read_ms,
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min => 0);
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$self->{output}->perfdata_add(label => 'writetime' . $extra_label, unit => 'ms',
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value => $write_ms,
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min => 0);
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$self->{output}->perfdata_add(label => 'utils' . $extra_label, unit => '%',
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value => sprintf("%.2f", $utils),
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warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-utils'),
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critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-util'),
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min => 0, max => 100);
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}
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$self->{statefile_value}->write(data => $new_datas);
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if (!defined($old_timestamp)) {
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$self->{output}->output_add(severity => 'OK',
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short_msg => "Buffer creation...");
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}
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$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 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-bytes-read>
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Threshold warning in bytes per seconds read.
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=item B<--critical-bytes-read>
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Threshold critical in bytes per seconds read.
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=item B<--warning-bytes-write>
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Threshold warning in bytes per seconds write.
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=item B<--critical-bytes-write>
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Threshold critical in bytes per seconds write.
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=item B<--warning-utils>
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Threshold warning in %utils.
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=item B<--critical-utils>
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Threshold critical in %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 |