/usr/share/munin/plugins/cps_ is in munin-node 1.4.6-3ubuntu3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 | #!/usr/bin/perl
#
# Plugin to monitor connections per second, for LVS loadbalancers.
#
# Wildcard names:
#
# cps_<port>
# cps_<vip>_<port>
#
# Examples:
#
# cps_smtp
# cps_mail.foo.boo_smtp
# cps_pop3
# cps_www.foo.boo_www
# cps_vvv.foo.boo_www
#
# Parameters understood:
#
# config (required)
# autoconf (optional - used by munin-config)
# suggest (optional - used by munin-config)
#
# Magic markers - optional - used by installation scripts and munin-config:
#
#%# family=auto
#%# capabilities=autoconf suggest
#
use strict;
if ( defined $ARGV[0] and $ARGV[0] eq "autoconf" ) {
autoconf ();
}
if ( defined $ARGV[0] and $ARGV[0] eq "suggest" ) {
my $sipvs;
$sipvs = &ipvs (".", ".", $sipvs);
exit 0 if $sipvs == undef;
suggest ($sipvs);
}
unless ($0 =~ /cps(?:_([^_]+)|)_(.+)\s*$/) {
die "Could not parse name $0.\n";
}
my $vip = $1;
my $port = $2;
my $ipvs;
#print "$vip:$port\n";
use Socket;
my $name;
my $address;
$address = inet_aton($vip);
$name = gethostbyaddr($address,AF_INET);
#print "$vip:$port\n";
#print "Name: $0\nPort: $port\nVip : $vip\n";
# Read ipvsadm-output
$ipvs = &ipvs ($vip, $port, $ipvs);
if ( defined $ARGV[0] and $ARGV[0] eq "config" ) {
config ($vip, $port, $ipvs);
}
$vip = $vip || "";
if (exists ($ipvs->{$vip}) and exists ($ipvs->{$vip}->{$port})) {
foreach my $host (sort keys %{$ipvs->{$vip}->{$port}}) {
(my $fname = $host) =~ s/[.-]/_/g;
print "$fname.value ", $ipvs->{$vip}->{$port}->{$host}, "\n";;
}
}
sub autoconf {
system ("/sbin/ipvsadm -L -n --stats >/dev/null 2>/dev/null");
if ($? == 0) {
print "yes\n";
exit 0;
}
elsif (($?>>8) == 2) {
print "no (permission denied)\n";
exit 0;
}
elsif ($? == 127) {
print "no (ipvsadm not found)\n";
exit 0;
} else {
print "no\n";
exit 0;
}
}
sub suggest {
my $ipvs = shift;
exit 0 unless $ipvs;
foreach my $vip (sort keys %{$ipvs}) {
foreach my $port (sort keys %{$ipvs->{$vip}}) {
print "cps_${vip}_$port\n";
}
}
exit 0;
}
sub config {
my $vip = shift;
my $port = shift;
my $ipvs = shift;
print "graph_title Loadbalanced ",($name?$name:"*"),"->",$port," connections\n";
print "graph_args -l 0\n";
print "graph_total total\n";
print "graph_vlabel connections / \${graph_period}\n";
print "graph_category network\n";
my $first=1;
$vip = $vip || "";
if (exists ($ipvs->{$vip}) and exists ($ipvs->{$vip}->{$port})) {
foreach my $host (sort keys %{$ipvs->{$vip}->{$port}}) {
(my $fname = $host) =~ s/[.-]/_/g;
if ( $first == 1 ) {
print "$fname.draw AREA\n";
$first=0
} else {
print "$fname.draw STACK\n";
}
print "$fname.type DERIVE\n";
$host =~ s/-bak//;
print "$fname.label $host\n";
print "$fname.max 1000\n";
print "$fname.min 0\n";
}
}
exit 0;
}
sub ipvs {
my $vip = shift;
my $port = shift;
my $ipvs = shift;
open (IPVS, "/sbin/ipvsadm -L -n --stats 2>/dev/null|") or return undef;
my $cvip = "";
my $cport = "";
while (<IPVS>) {
next if /^IP Virtual Server/;
next if /^Prot\s+LocalAddress/;
if (/^(\w+)\s+([\w\.-]+):([\w\d]+)\s+(\d+)[KMG]?\s+/) {
$cvip = ($vip?$2:"");
$cport = $3;
}
elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)G\s+/) {
$ipvs->{$cvip}->{$cport}->{$1} += ($3*1000000000);
}
elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)M\s+/) {
$ipvs->{$cvip}->{$cport}->{$1} += ($3*1000000);
}
elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)K\s+/) {
$ipvs->{$cvip}->{$cport}->{$1} += ($3*1000);
}
elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)\s+/) {
$ipvs->{$cvip}->{$cport}->{$1} += $3;
}
}
close (IPVS) or return undef;
return $ipvs;
}
# vim:syntax=perl
|