contrib-munin/plugins/memcached/memcached_connections_

#!/usr/bin/env perl
# ex:ts=4

use strict;
use warnings;

use Cache::Memcached;

my $cmd = shift || '';
if ($cmd eq 'config') {
	print "graph_title Memcached connections\n";
	print "graph_args --base 1000 -l 0\n";
	print "graph_vlabel connections\n";
	print "graph_category memory\n";
	print "graph_info This graph monitors the connections to the memcached server.\n";
	print "connections.label connections\n";
	print "connections.info Number of connections to memcached\n";
	print "connections.min 0\n";
	print "connections.draw AREA\n";
	exit 0;
}

$0 =~ /memcached_connections_(\d+_\d+_\d+_\d+)_(\d+)$/;
my ($ip, $port) = ($1, $2);
$ip =~ s/_/./g;
my $address = "$ip:$port";

my $memd = new Cache::Memcached { 'servers' => [$address] };
my $memstats = $memd->stats(['misc']);

print "connections.value " .
	$memstats->{hosts}->{$address}->{misc}->{curr_connections} . "\n";