new check_centreon_snmp_real_memory
option -s added : state becomes critical when physical memory is above 99% and swap memory exceeds the -s value. git-svn-id: http://svn.centreon.com/trunk/plugins-2.x@4430 6bcd3966-0018-0410-8128-fd23d134de7e
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Sylvestre Ho
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#! /usr/bin/perl -w
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#
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# $Id: check_grah_real_memory.pl,v 1.2 2005/07/27 22:21:49 wistof Exp $
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#
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# Oreon's plugins are developped with GPL Licence :
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# http://www.fsf.org/licenses/gpl.txt
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# Developped by : Julien Mathis - Mathieu Mettre - Romain Le Merlus - Yohann Lecarpentier
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#
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# Modified for Oreon Project by : Mathieu Chateau - Christophe Coraboeuf
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#
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# The Software is provided to you AS IS and WITH ALL FAULTS.
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# OREON makes no representation and gives no warranty whatsoever,
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# whether express or implied, and without limitation, with regard to the quality,
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# safety, contents, performance, merchantability, non-infringement or suitability for
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# any particular or intended purpose of the Software found on the OREON web site.
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# In no event will OREON be liable for any direct, indirect, punitive, special,
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# incidental or consequential damages however they may arise and even if OREON has
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# been previously advised of the possibility of such damages.
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##
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## Plugin init
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##
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use strict;
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use Net::SNMP qw(:snmp);
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use FindBin;
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use lib "$FindBin::Bin";
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use lib "/srv/nagios/libexec/";
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use utils qw($TIMEOUT %ERRORS &print_revision &support);
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if (eval "require oreon" ) {
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use oreon qw(get_parameters);
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use vars qw($VERSION %oreon);
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%oreon=get_parameters();
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} else {
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print "Unable to load oreon perl module\n";
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exit $ERRORS{'UNKNOWN'};
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}
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use vars qw($PROGNAME);
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use Getopt::Long;
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use vars qw($opt_V $opt_h $opt_g $opt_v $opt_C $opt_w $opt_c $opt_s $opt_H @test);
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my $pathtorrdbase = $oreon{GLOBAL}{DIR_RRDTOOL};
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##
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## Plugin var init
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##
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my ($hrStorageDescr, $hrStorageAllocationUnits, $hrStorageSize, $hrStorageUsed);
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my ($AllocationUnits, $Size, $Used);
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my ($tot, $used, $pourcent, $return_code);
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$PROGNAME = "$0";
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sub print_help ();
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sub print_usage ();
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Getopt::Long::Configure('bundling');
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GetOptions
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("h" => \$opt_h, "help" => \$opt_h,
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"V" => \$opt_V, "version" => \$opt_V,
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"v=s" => \$opt_v, "snmp=s" => \$opt_v,
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"C=s" => \$opt_C, "community=s" => \$opt_C,
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"w=s" => \$opt_w, "warning=s" => \$opt_w,
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"c=s" => \$opt_c, "critical=s" => \$opt_c,
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"s=s" => \$opt_s, "swap=s" => \$opt_s,
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"H=s" => \$opt_H, "hostname=s" => \$opt_H);
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if ($opt_V) {
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print_revision($PROGNAME,'$Revision: 1.2 $');
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exit $ERRORS{'OK'};
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}
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if ($opt_h) {
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print_help();
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exit $ERRORS{'OK'};
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}
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$opt_H = shift unless ($opt_H);
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(print_usage() && exit $ERRORS{'OK'}) unless ($opt_H);
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($opt_v) || ($opt_v = shift) || ($opt_v = "2");
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my $snmp = $1 if ($opt_v =~ /(\d)/);
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($opt_C) || ($opt_C = shift) || ($opt_C = "public");
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($opt_c) || ($opt_c = shift) || ($opt_c = 95);
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my $critical = $1 if ($opt_c =~ /([0-9]+)/);
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($opt_w) || ($opt_w = shift) || ($opt_w = 80);
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my $warning = $1 if ($opt_w =~ /([0-9]+)/);
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if ($critical <= $warning){
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print "(--crit) must be superior to (--warn)";
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print_usage();
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exit $ERRORS{'OK'};
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}
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my $swap_limit;
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if ($opt_s)
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{
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($opt_s) || ($opt_s = shift) || ($opt_s = 10);
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$swap_limit = $1 if ($opt_s =~ /([0-9]+)/);
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}
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my $start=time;
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my $name = $0;
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## Plugin snmp requests
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# my $OID_hrStorageDescr = $oreon{MIB2}{HR_STORAGE_DESCR};
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# my $OID_hrStorageAllocationUnits =$oreon{MIB2}{HR_STORAGE_ALLOCATION_UNITS};
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# my $OID_hrStorageSize =$oreon{MIB2}{HR_STORAGE_SIZE};
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# my $OID_hrStorageUsed =$oreon{MIB2}{HR_STORAGE_USED};
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# create a SNMP session
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my ( $session, $error ) = Net::SNMP->session(-hostname => $opt_H,-community => $opt_C, -version => $snmp);
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if ( !defined($session) ) {
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print("CRITICAL: SNMP Session : $error");
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exit $ERRORS{'CRITICAL'};
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}
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####################
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#### snmp request
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##
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my $OID_descr_storage = ".1.3.6.1.2.1.25.2.3.1.3"; #"1.3.6.1.2.1.25.2.3.1.1";
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my $result = $session->get_table(Baseoid => $OID_descr_storage);
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if (!defined($result)) {
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printf("ERROR: Description Table hrStorageType : %s.\n", $session->error);
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$session->close;
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exit $ERRORS{'UNKNOWN'};
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}
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my ($virt_alloc, my $virt_used, my $virt_size);
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my $indexV = 0;
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my $indexR = 0;
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foreach my $key (oid_lex_sort(keys %$result)) {
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if ($result->{$key} =~ m/Swap|Virtual/) {
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my @cpt = split /\./,$key;
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$indexV = $cpt[scalar(@cpt) - 1];;
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}
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if ($result->{$key} =~ m/Real|Physical/) {
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my @cpt = split /\./,$key;
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$indexR = $cpt[scalar(@cpt)-1];
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}
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}
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if ($indexV == 0 || $indexR == 0) {
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printf("ERROR: cannot find ram information");
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exit $ERRORS{'UNKNOWN'};
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}
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my $OID_hrStorage_used = ".1.3.6.1.2.1.25.2.3.1.6";
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my $OID_Swap_storage_used = ".1.3.6.1.2.1.25.2.3.1.6.".$indexV;
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my $OID_RealM_storage_used = ".1.3.6.1.2.1.25.2.3.1.6.".$indexR;
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my $used_mem = $session->get_table(Baseoid => $OID_hrStorage_used);
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if (!defined($used_mem)) {
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printf("ERROR: Description Table hrStorageUsed : %s.\n", $session->error);
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$session->close;
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exit $ERRORS{'UNKNOWN'};
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}
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my $OID_hrStorage_size = ".1.3.6.1.2.1.25.2.3.1.5";
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my $OID_Swap_storage_size = ".1.3.6.1.2.1.25.2.3.1.5.".$indexV;
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my $OID_RealM_storage_size = ".1.3.6.1.2.1.25.2.3.1.5.".$indexR;
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my $total_mem = $session->get_table(Baseoid => $OID_hrStorage_size);
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if (!defined($total_mem)) {
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printf("ERROR: Description Table hrStorageSize : %s.\n", $session->error);
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$session->close;
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exit $ERRORS{'UNKNOWN'};
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}
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my $OID_storage_allocationUnits = ".1.3.6.1.2.1.25.2.3.1.4";
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my $OID_Swap_storage_allocationUnits = ".1.3.6.1.2.1.25.2.3.1.4.".$indexV;
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my $OID_RealM_storage_allocationUnits = ".1.3.6.1.2.1.25.2.3.1.4.".$indexR;
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my $alloc_units = $session->get_table(Baseoid => $OID_storage_allocationUnits);
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if (!defined($alloc_units)) {
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printf("ERROR: Description Table hrStorageUsed : %s.\n", $session->error);
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$session->close;
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exit $ERRORS{'UNKNOWN'};
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}
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my $swap_used = $used_mem->{$OID_Swap_storage_used} * $alloc_units->{$OID_Swap_storage_allocationUnits};
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my $realM_used = $used_mem->{$OID_RealM_storage_used} * $alloc_units->{$OID_RealM_storage_allocationUnits};
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my $swap_size = $total_mem->{$OID_Swap_storage_size} * $alloc_units->{$OID_Swap_storage_allocationUnits};
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my $realM_size = $total_mem->{$OID_RealM_storage_size} * $alloc_units->{$OID_RealM_storage_allocationUnits};
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my $total_memory_used = $swap_used + $realM_used;
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my $total_memory_size = $swap_size + $realM_size;
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# percentage of total, physical and swap memory used
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if ($swap_size eq "0"){
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$swap_size = 1;
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}
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my $percent_used = ($total_memory_used/$total_memory_size)*100;
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my $percent_swap_used = ($swap_used/$swap_size) * 100;
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my $percent_realM_used = ($realM_used/$realM_size) * 100;
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$percent_swap_used =~ s/\.[0-9]+//;
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$percent_used =~ s/\.[0-9]+//;
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$percent_realM_used =~ s/\.[0-9]+//;
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# return
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if(($opt_s) && ($opt_s =~ /([0-9]+)/))
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{
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if(($percent_realM_used >= 99) && ($percent_swap_used > $swap_limit))
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{
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print "swap threshold (".$opt_s."%) excedeed : total memory used : ".$percent_used."%, ram used : ".$percent_realM_used."%, swap used : ".$percent_swap_used."% | used=".$total_memory_used."o size=".$total_memory_size."o\n";
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exit $ERRORS{'CRITICAL'};
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}
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}
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if ($percent_used >= $opt_c){
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print "threshold (".$opt_c."%) excedeed : total memory used : ".$percent_used."%, ram used : ".$percent_realM_used."%, swap used : ".$percent_swap_used."% | used=".$total_memory_used."o size=".$total_memory_size."o\n";
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exit $ERRORS{'CRITICAL'};
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} elsif ($percent_used >= $opt_w){
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print "threshold (".$opt_w."%) excedeed : total memory used : ".$percent_used."%, ram used : ".$percent_realM_used."%, swap used ".$percent_swap_used."% | used=".$total_memory_used."o size=".$total_memory_size."o\n";
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exit $ERRORS{'WARNING'};
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} else {
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print "total memory used : ".$percent_used."% ram used : ".$percent_realM_used."%, swap used ".$percent_swap_used."% | used=".$total_memory_used."o size=".$total_memory_size."o\n";
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exit $ERRORS{'OK'};
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}
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sub print_usage () {
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print "\nUsage:\n";
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print "$PROGNAME\n";
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print " -H (--hostname) Hostname to query - (required)\n";
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print " -C (--community) SNMP read community (defaults to public,\n";
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print " used with SNMP v1 and v2c\n";
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print " -v (--snmp_version) 1 for SNMP v1 (default)\n";
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print " 2 for SNMP v2c\n";
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print " -V (--version) Plugin version\n";
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print " -h (--help) usage help\n";
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print " -c (--critical) percentage of memory used at which a critical message will be generated\n";
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print " -w (--warning) percentage of memory used at which a warning message will be generated\n";
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print " -s (--swap) limit of swap memory can reach before the service turns critical, while phyical memory is near 100%\n";
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}
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sub print_help () {
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print "#=========================================\n";
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print "# Copyright (c) 2007 Merethis SARL =\n";
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print "# Developped by Julien Mathis =\n";
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print "# Bugs to http://www.oreon-project.org/ =\n";
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print "#=========================================\n";
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print_usage();
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print "\n";
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}
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