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centreon-plugins/database/oracle/mode/tablespaceusage.pm

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#
# Copyright 2018 Centreon (http://www.centreon.com/)
#
# Centreon is a full-fledged industry-strength solution that meets
# the needs in IT infrastructure and application monitoring for
# service performance.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
package database::oracle::mode::tablespaceusage;
use base qw(centreon::plugins::templates::counter);
use strict;
use warnings;
my $instance_mode;
sub set_counters {
my ($self, %options) = @_;
$self->{maps_counters_type} = [
{ name => 'tablespace', type => 1, cb_prefix_output => 'prefix_tablespace_output', message_multiple => 'All tablespaces are OK' },
];
$self->{maps_counters}->{tablespace} = [
{ label => 'tablespace', set => {
key_values => [ { name => 'prct_used' }, { name => 'used' }, { name => 'free' }, { name => 'total' }, { name => 'display' } ],
closure_custom_calc => \&custom_usage_calc,
closure_custom_output => \&custom_usage_output,
closure_custom_perfdata => \&custom_usage_perfdata,
closure_custom_threshold_check => \&custom_usage_threshold,
}
},
];
}
sub custom_usage_perfdata {
my ($self, %options) = @_;
my $label = 'tbs_' . $self->{result_values}->{display} . '_usage';
my $value_perf = $self->{result_values}->{used};
if (defined($instance_mode->{option_results}->{free})) {
$label = 'tbs_' . $self->{result_values}->{display} . '_free';
$value_perf = $self->{result_values}->{free};
}
my $extra_label = '';
$extra_label = '_' . $self->{result_values}->{display} if (!defined($options{extra_instance}) || $options{extra_instance} != 0);
my %total_options = ();
if ($instance_mode->{option_results}->{units} eq '%') {
$total_options{total} = $self->{result_values}->{total};
$total_options{cast_int} = 1;
}
$self->{output}->perfdata_add(label => $label . $extra_label, unit => 'B',
value => $value_perf,
warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-' . $self->{label}, %total_options),
critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-' . $self->{label}, %total_options),
min => 0, max => $self->{result_values}->{total});
}
sub custom_usage_threshold {
my ($self, %options) = @_;
my ($exit, $threshold_value);
$threshold_value = $self->{result_values}->{used};
$threshold_value = $self->{result_values}->{free} if (defined($instance_mode->{option_results}->{free}));
if ($instance_mode->{option_results}->{units} eq '%') {
$threshold_value = $self->{result_values}->{prct_used};
$threshold_value = $self->{result_values}->{prct_free} if (defined($instance_mode->{option_results}->{free}));
}
$exit = $self->{perfdata}->threshold_check(value => $threshold_value, threshold => [ { label => 'critical-' . $self->{label}, exit_litteral => 'critical' }, { label => 'warning-'. $self->{label}, exit_litteral => 'warning' } ]);
return $exit;
}
sub custom_usage_output {
my ($self, %options) = @_;
my ($total_size_value, $total_size_unit) = $self->{perfdata}->change_bytes(value => $self->{result_values}->{total});
my ($total_used_value, $total_used_unit) = $self->{perfdata}->change_bytes(value => $self->{result_values}->{used});
my ($total_free_value, $total_free_unit) = $self->{perfdata}->change_bytes(value => $self->{result_values}->{free});
my $msg = sprintf("Total: %s Used: %s (%.2f%%) Free: %s (%.2f%%)",
$total_size_value . " " . $total_size_unit,
$total_used_value . " " . $total_used_unit, $self->{result_values}->{prct_used},
$total_free_value . " " . $total_free_unit, $self->{result_values}->{prct_free});
return $msg;
}
sub custom_usage_calc {
my ($self, %options) = @_;
$self->{result_values}->{display} = $options{new_datas}->{$self->{instance} . '_display'};
$self->{result_values}->{total} = $options{new_datas}->{$self->{instance} . '_total'};
$self->{result_values}->{used} = $options{new_datas}->{$self->{instance} . '_used'};
$self->{result_values}->{prct_used} = $options{new_datas}->{$self->{instance} . '_prct_used'};
$self->{result_values}->{free} = $options{new_datas}->{$self->{instance} . '_free'};
$self->{result_values}->{prct_free} = 100 - $self->{result_values}->{prct_used};
return 0;
}
sub new {
my ($class, %options) = @_;
my $self = $class->SUPER::new(package => __PACKAGE__, %options);
bless $self, $class;
$self->{version} = '1.0';
$options{options}->add_options(arguments =>
{
"filter-tablespace:s" => { name => 'filter_tablespace' },
"units:s" => { name => 'units', default => '%' },
"free" => { name => 'free' },
"skip" => { name => 'skip' },
});
return $self;
}
sub prefix_tablespace_output {
my ($self, %options) = @_;
return "Tablespace '" . $options{instance_value}->{display} . "' ";
}
sub check_options {
my ($self, %options) = @_;
$self->SUPER::check_options(%options);
$instance_mode = $self;
}
sub manage_selection {
my ($self, %options) = @_;
# $options{sql} = sqlmode object
$self->{sql} = $options{sql};
$self->{sql}->connect();
my $query;
if ($self->{sql}->is_version_minimum(version => '11')) {
$query = q{
SELECT
tum.tablespace_name "Tablespace",
t.status "Status",
t.contents "Type",
t.extent_management "Extent Mgmt",
tum.used_space*t.block_size bytes,
tum.tablespace_size*t.block_size bytes_max
FROM
DBA_TABLESPACE_USAGE_METRICS tum
INNER JOIN
dba_tablespaces t on tum.tablespace_name=t.tablespace_name
WHERE
t.contents<>'UNDO'
OR (t.contents='UNDO' AND t.tablespace_name =(SELECT value FROM v$parameter WHERE name='undo_tablespace'))
};
} elsif ($self->{sql}->is_version_minimum(version => '9')) {
$query = q{
SELECT
a.tablespace_name "Tablespace",
b.status "Status",
b.contents "Type",
b.extent_management "Extent Mgmt",
a.bytes bytes,
a.maxbytes bytes_max,
c.bytes_free + NVL(d.bytes_expired,0) bytes_free
FROM
(
SELECT
a.tablespace_name,
SUM(a.bytes) bytes,
SUM(DECODE(a.autoextensible, 'YES', CASE WHEN (a.bytes > a.maxbytes) THEN 0 ELSE a.maxbytes END, 'NO', a.bytes)) maxbytes
FROM
dba_data_files a
GROUP BY
tablespace_name
) a,
sys.dba_tablespaces b,
(
SELECT
a.tablespace_name,
SUM(a.bytes) bytes_free
FROM
dba_free_space a
GROUP BY
tablespace_name
) c,
(
SELECT
a.tablespace_name,
SUM(a.bytes) bytes_expired
FROM
dba_undo_extents a
WHERE
status = 'EXPIRED'
GROUP BY
tablespace_name
) d
WHERE
a.tablespace_name = c.tablespace_name (+)
AND a.tablespace_name = b.tablespace_name
AND a.tablespace_name = d.tablespace_name (+)
AND (b.contents = 'PERMANENT'
OR (b.contents <> 'PERMANENT'
AND a.tablespace_name=(select value from v$parameter where name='undo_tablespace')))
UNION ALL
SELECT
d.tablespace_name "Tablespace",
b.status "Status",
b.contents "Type",
b.extent_management "Extent Mgmt",
sum(a.bytes_free + a.bytes_used) bytes, -- allocated
SUM(DECODE(d.autoextensible, 'YES', CASE WHEN (d.bytes > d.maxbytes) THEN 0 ELSE d.maxbytes END, 'NO', d.bytes)) bytes_max,
SUM(a.bytes_free + a.bytes_used - NVL(c.bytes_used, 0)) bytes_free
FROM
sys.v_$TEMP_SPACE_HEADER a,
sys.dba_tablespaces b,
sys.v_$Temp_extent_pool c,
dba_temp_files d
WHERE
c.file_id(+) = a.file_id
and c.tablespace_name(+) = a.tablespace_name
and d.file_id = a.file_id
and d.tablespace_name = a.tablespace_name
and b.tablespace_name = a.tablespace_name
GROUP BY
b.status,
b.contents,
b.extent_management,
d.tablespace_name
ORDER BY
1
};
} elsif ($self->{sql}->is_version_minimum(version => '8')) {
$query = q{SELECT
a.tablespace_name "Tablespace",
b.status "Status",
b.contents "Type",
b.extent_management "Extent Mgmt",
a.bytes bytes,
a.maxbytes bytes_max,
c.bytes_free bytes_free
FROM
(
-- belegter und maximal verfuegbarer platz pro datafile
-- nach tablespacenamen zusammengefasst
-- => bytes
-- => maxbytes
SELECT
a.tablespace_name,
SUM(a.bytes) bytes,
SUM(DECODE(a.autoextensible, 'YES', a.maxbytes, 'NO', a.bytes)) maxbytes
FROM
dba_data_files a
GROUP BY
tablespace_name
) a,
sys.dba_tablespaces b,
(
-- freier platz pro tablespace
-- => bytes_free
SELECT
a.tablespace_name,
SUM(a.bytes) bytes_free
FROM
dba_free_space a
GROUP BY
tablespace_name
) c
WHERE
a.tablespace_name = c.tablespace_name (+)
AND a.tablespace_name = b.tablespace_name
AND (b.contents = 'PERMANENT'
OR (b.contents <> 'PERMANENT'
AND a.tablespace_name=(select value from v$parameter where name='undo_tablespace')))
UNION ALL
SELECT
a.tablespace_name "Tablespace",
b.status "Status",
b.contents "Type",
b.extent_management "Extent Mgmt",
sum(a.bytes_free + a.bytes_used) bytes, -- allocated
d.maxbytes bytes_max,
SUM(a.bytes_free + a.bytes_used - NVL(c.bytes_used, 0)) bytes_free
FROM
sys.v_$TEMP_SPACE_HEADER a,
sys.dba_tablespaces b,
sys.v_$Temp_extent_pool c,
dba_temp_files d
WHERE
c.file_id(+) = a.file_id
and c.tablespace_name(+) = a.tablespace_name
and d.file_id = a.file_id
and d.tablespace_name = a.tablespace_name
and b.tablespace_name = a.tablespace_name
GROUP BY
a.tablespace_name,
b.status,
b.contents,
b.extent_management,
d.maxbytes
ORDER BY
1
};
} else {
$query = q{SELECT
a.tablespace_name "Tablespace",
b.status "Status",
b.contents "Type",
'DICTIONARY' "Extent Mgmt",
a.bytes bytes,
a.maxbytes bytes_max,
c.bytes_free bytes_free
FROM
(
-- belegter und maximal verfuegbarer platz pro datafile
-- nach tablespacenamen zusammengefasst
-- => bytes
-- => maxbytes
SELECT
a.tablespace_name,
SUM(a.bytes) bytes,
SUM(a.bytes) maxbytes
FROM
dba_data_files a
GROUP BY
tablespace_name
) a,
sys.dba_tablespaces b,
(
-- freier platz pro tablespace
-- => bytes_free
SELECT
a.tablespace_name,
SUM(a.bytes) bytes_free
FROM
dba_free_space a
GROUP BY
tablespace_name
) c
WHERE
a.tablespace_name = c.tablespace_name (+)
AND a.tablespace_name = b.tablespace_name
};
}
$self->{sql}->query(query => $query);
my $result = $self->{sql}->fetchall_arrayref();
$self->{tablespace} = {};
foreach my $row (@$result) {
my ($name, $status, $type, $extentmgmt, $bytes, $bytes_max, $bytes_free) = @$row;
if (defined($self->{option_results}->{filter_tablespace}) && $self->{option_results}->{filter_tablespace} ne '' &&
$name !~ /$self->{option_results}->{filter_tablespace}/) {
$self->{output}->output_add(long_msg => "Skipping '" . $name . "': no matching filter.", debug => 1);
next;
}
if (!defined($bytes)) {
# seems corrupted, cannot get value
$self->{output}->output_add(long_msg => sprintf("tbs '%s' cannot get data", $name), debug => 1);
next;
}
if (defined($self->{option_results}->{skip}) && $status eq 'OFFLINE') {
$self->{output}->output_add(long_msg => "Skipping '" . $name . "': tbs is offline", debug => 1);
next;
}
my ($percent_used, $percent_free, $used, $free, $size);
if ($self->{sql}->is_version_minimum(version => '11')) {
$percent_used = $bytes / $bytes_max * 100;
$size = $bytes_max;
$free = $bytes_max - $bytes;
$used = $bytes;
} elsif ((!defined($bytes_max)) || ($bytes_max == 0)) {
$percent_used = ($bytes - $bytes_free) / $bytes * 100;
$size = $bytes;
$free = $bytes_free;
$used = $size - $free;
} else {
$percent_used = ($bytes - $bytes_free) / $bytes_max * 100;
$size = $bytes_max;
$free = $bytes_free + ($bytes_max - $bytes);
$used = $size - $free;
}
$self->{tablespace}->{$name} = { used => $used,
free => $free,
total => $size,
prct_used => $percent_used,
display => lc $name };
}
}
1;
__END__
=head1 MODE
Check Oracle tablespaces usage.
=over 8
=item B<--warning-tablespace>
Threshold warning.
=item B<--critical-tablespace>
Threshold critical.
=item B<--filter-tablespace>
Filter tablespace by name. Can be a regex
=item B<--units>
Default is '%', can be 'B'
=item B<--free>
Perfdata show free space
=item B<--skip>
Skip offline tablespaces.
=back
=cut
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