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check_berkeleydb_locks.pl
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check_berkeleydb_locks.pl
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#! /usr/bin/perl -w
#==========================================================================
# Summary
#==========================================================================
# Check LDAP query
#
# Get BerkeleyDB locks
#
# Copyright (C) 2012 Clement OUDOT
# Copyright (C) 2012 Joel SAUNIER
# Copyright (C) 2012 LTB-project.org
#
#==========================================================================
# License: GPLv2+
#==========================================================================
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# GPL License: http://www.gnu.org/licenses/gpl.txt
#==========================================================================
#==========================================================================
# Version
#==========================================================================
my $VERSION = '0.8';
my $TEMPLATE_VERSION = '1.0.0';
#==========================================================================
# Modules
#==========================================================================
use strict;
use lib
qw(/usr/local/nagios/libexec /usr/lib/nagios/plugins /usr/lib64/nagios/plugins);
use utils qw /$TIMEOUT %ERRORS &print_revision &support/;
use Getopt::Long;
&Getopt::Long::config('bundling');
use File::Basename;
#==========================================================================
# Options
#==========================================================================
my $progname = basename($0);
my $help;
my $version;
my $verbose = 0;
my $host;
my $warning;
my $critical;
my $mode;
my $logname;
my $authentication;
my $log_file;
my $perf_data;
my $name;
my $port;
my $timeout = $TIMEOUT;
my $regexp;
my $eregexp;
my $exclude;
my $minute = 60;
my $url;
my $current = 0;
my $maximum = 0;
my $db_home;
my $db_stat;
GetOptions(
'h' => \$help,
'help' => \$help,
'V' => \$version,
'version' => \$version,
'v+' => \$verbose,
'verbose+' => \$verbose,
'w:i' => \$warning,
'warning:i' => \$warning,
'c:i' => \$critical,
'critical:i' => \$critical,
'f' => \$perf_data,
'perf_data' => \$perf_data,
'current!' => \$current,
'maximum!' => \$maximum,
'H:s' => \$db_home,
'db_home:s' => \$db_home,
'S:s' => \$db_stat,
'db_stat:s' => \$db_stat,
);
#==========================================================================
# Usage
#==========================================================================
sub print_usage {
print "Usage: \n";
print "$progname -H <db_home> [-S <db_stat>] [-h] [-v] [-V]\n\n";
print "Use option --help for more information\n\n";
print "$progname comes with ABSOLUTELY NO WARRANTY\n\n";
}
#=========================================================================
# Version
#=========================================================================
if ($version) {
&print_revision( $progname,
"\$Revision: $VERSION (TPL: $TEMPLATE_VERSION)\$" );
exit $ERRORS{'UNKNOWN'};
}
#=========================================================================
# Help
#=========================================================================
if ($help) {
&print_revision( $progname, "\$Revision: $VERSION\$" );
print "\n\nGet BerkeleyDB maximum and current locks used.\n\n";
&print_usage;
print "-v, --verbose\n";
print "\tPrint extra debugging information.\n";
print "-V, --version\n";
print "\tPrint version and exit.\n";
print "-h, --help\n";
print "\tPrint this help message and exit.\n";
print "-H, --db_home=STRING\n";
print "\tHome of BDB files\n";
print "-S, --db_stat=STRING\n";
print "\tPath to db_stat utility.\n";
print "-w, --warning=INTEGER\n";
print
"\tPercent of locks used to send a warning status.\n\tUse max locks by default, unless --current and --nomaximum are set\n";
print "-c, --critical=DOUBLE\n";
print
"\tPercent of locks used a critical status.\n\tUse max locks by default, unless --current and --nomaximum are set.\n";
print "-f, --perf_data\n";
print
"\tDisplay performance data.\n\tSet --maximum if --nocurrent and --nomaximum are set.\n";
print "--current\n";
print
"\tDisplay performance data for current locks/lockers/lock objects.\n\tDefault to --nocurrent\n";
print "--maximum\n";
print
"\tDisplay performance data for maximum locks/lockers/lock objects.\n\tDefault to --nomaximum\n";
print "\n";
&support;
exit $ERRORS{'UNKNOWN'};
}
#=========================================================================
# Functions
#=========================================================================
# DEBUG function
sub verbose {
my $output_code = shift;
my $text = shift;
if ( $verbose >= $output_code ) {
printf "VERBOSE $output_code ===> %s\n", $text;
}
}
# check if -h is used
sub check_db_home_param {
if ( !defined($db_home) ) {
printf "UNKNOWN: you have to define home of BDB files.\n";
exit $ERRORS{UNKNOWN};
}
}
# check if -w is used
sub check_warning_param {
if ( !defined($warning) ) {
printf "UNKNOWN: you have to define a warning thresold.\n";
exit $ERRORS{UNKNOWN};
}
}
# check if -c is used
sub check_critical_param {
if ( !defined($critical) ) {
printf "UNKNOWN: you have to define a critical thresold.\n";
exit $ERRORS{UNKNOWN};
}
}
#=========================================================================
# Main
#=========================================================================
# Options checks
&check_db_home_param();
&check_warning_param();
&check_critical_param();
# Default values
$db_stat ||= "/usr/local/berkeleydb/bin/db_stat";
$maximum = 1 if ( $current == 0 and $maximum == 0 );
# Run db_stat
#
my @result = `$db_stat -c -h $db_home`;
my $max_locks_possible = 0;
my $max_lockers_possible = 0;
my $max_lock_objects_possible = 0;
my $max_locks = 0;
my $max_lockers = 0;
my $max_lock_objects = 0;
my $current_locks = 0;
my $current_lockers = 0;
my $current_lock_objects = 0;
foreach (@result) {
if ( $_ =~ m/(\d+)\s*Maximum number of locks possible/ ) {
$max_locks_possible = $1;
}
if ( $_ =~ m/(\d+)\s*Maximum number of lockers possible/ ) {
$max_lockers_possible = $1;
}
if ( $_ =~ m/(\d+)\s*Maximum number of lock objects possible/ ) {
$max_lock_objects_possible = $1;
}
if ( $_ =~ m/(\d+)\s*Maximum number of locks at any one time/ ) {
$max_locks = $1;
}
if ( $_ =~ m/(\d+)\s*Maximum number of lockers at any one time/ ) {
$max_lockers = $1;
}
if ( $_ =~ m/(\d+)\s*Maximum number of lock objects at any one time/ ) {
$max_lock_objects = $1;
}
if ( $_ =~ m/(\d+)\s*Number of current locks/ ) { $current_locks = $1 }
if ( $_ =~ m/(\d+)\s*Number of current lockers/ ) { $current_lockers = $1 }
if ( $_ =~ m/(\d+)\s*Number of current lock objects/ ) {
$current_lock_objects = $1;
}
}
#==========================================================================
# Exit with Nagios codes
#==========================================================================
# Prepare PerfParse data
my $perfparse = "|";
if ($perf_data) {
my $warnvalue = 0;
my $critvalue = 0;
if ($current) {
$warnvalue = int( ( $max_locks_possible * $warning ) / 100 );
$critvalue = int( ( $max_locks_possible * $critical ) / 100 );
$perfparse .=
"'current_locks'=$current_locks;$warnvalue;$critvalue;0;$max_locks_possible ";
$warnvalue = int( ( $max_lockers_possible * $warning ) / 100 );
$critvalue = int( ( $max_lockers_possible * $critical ) / 100 );
$perfparse .=
"'current_lockers'=$current_lockers;$warnvalue;$critvalue;0;$max_lockers_possible ";
$warnvalue = int( ( $max_lock_objects_possible * $warning ) / 100 );
$critvalue = int( ( $max_lock_objects_possible * $critical ) / 100 );
$perfparse .=
"'current_lock_objects'=$current_lock_objects;$warnvalue;$critvalue;0;$max_lock_objects_possible ";
}
if ($maximum) {
$warnvalue = int( ( $max_locks_possible * $warning ) / 100 );
$critvalue = int( ( $max_locks_possible * $critical ) / 100 );
$perfparse .=
"'max_locks'=$max_locks;$warnvalue;$critvalue;0;$max_locks_possible ";
$warnvalue = int( ( $max_lockers_possible * $warning ) / 100 );
$critvalue = int( ( $max_lockers_possible * $critical ) / 100 );
$perfparse .=
"'max_lockers'=$max_lockers;$warnvalue;$critvalue;0;$max_lockers_possible ";
$warnvalue = int( ( $max_lock_objects_possible * $warning ) / 100 );
$critvalue = int( ( $max_lock_objects_possible * $critical ) / 100 );
$perfparse .=
"'max_lock_objects'=$max_lock_objects;$warnvalue;$critvalue;0;$max_lock_objects_possible ";
}
}
# Check percent of locks
#
my $percent_max_locks = int( $max_locks / $max_locks_possible * 100 );
my $percent_max_lockers = int( $max_lockers / $max_lockers_possible * 100 );
my $percent_max_lock_objects =
int( $max_lock_objects / $max_lock_objects_possible * 100 );
my $percent_curr_locks = int( $current_locks / $max_locks_possible * 100 );
my $percent_curr_lockers =
int( $current_lockers / $max_lockers_possible * 100 );
my $percent_curr_lock_objects =
int( $current_lock_objects / $max_lock_objects_possible * 100 );
# Check CRITICAL/WARNING/OK
#
if ($maximum) {
if ( $percent_max_locks > $critical
|| $percent_max_lockers > $critical
|| $percent_max_lock_objects > $critical )
{
print
"CRITICAL - $percent_max_locks% locks, $percent_max_lockers% lockers, $percent_max_lock_objects% lock_objects $perfparse\n";
exit $ERRORS{'CRITICAL'};
}
if ( $percent_max_locks > $warning
|| $percent_max_lockers > $warning
|| $percent_max_lock_objects > $warning )
{
print
"WARNING - $percent_max_locks% locks, $percent_max_lockers% lockers, $percent_max_lock_objects% lock_objects $perfparse\n";
exit $ERRORS{'WARNING'};
}
if ( $percent_max_locks <= $warning
&& $percent_max_lockers <= $warning
&& $percent_max_lock_objects <= $warning )
{
print
"OK - $percent_max_locks% locks, $percent_max_lockers% lockers, $percent_max_lock_objects% lock_objects $perfparse\n";
exit $ERRORS{'OK'};
}
}
if ($current) {
if ( $percent_curr_locks > $critical
|| $percent_curr_lockers > $critical
|| $percent_curr_lock_objects > $critical )
{
print
"CRITICAL - $percent_curr_locks% locks, $percent_curr_lockers% lockers, $percent_curr_lock_objects% lock_objects $perfparse\n";
exit $ERRORS{'CRITICAL'};
}
if ( $percent_curr_locks > $warning
|| $percent_curr_lockers > $warning
|| $percent_curr_lock_objects > $warning )
{
print
"WARNING - $percent_curr_locks% locks, $percent_curr_lockers% lockers, $percent_curr_lock_objects% lock_objects $perfparse\n";
exit $ERRORS{'WARNING'};
}
if ( $percent_curr_locks <= $warning
&& $percent_curr_lockers <= $warning
&& $percent_curr_lock_objects <= $warning )
{
print
"OK - $percent_curr_locks% locks, $percent_curr_lockers% lockers, $percent_curr_lock_objects% lock_objects $perfparse\n";
exit $ERRORS{'OK'};
}
}
exit $ERRORS{'UNKNOWN'};