contrib-munin/plugins/memcached/memcached_bytes_

#!/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 bytes used\n";
	print "graph_args --base 1024 -l 0\n";
	print "graph_vlabel bytes\n";
	print "graph_category memory\n";
	print "graph_info This graph monitors the size of the memcached cache.\n";
	print "bytes.label bytes used\n";
	print "bytes.info Number of bytes currently used\n";
	print "bytes.min 0\n";
	print "bytes.draw AREA\n";
	print "maxbytes.label maximum available\n";
	print "maxbytes.info The configured cache size\n";
	print "maxbytes.min 0\n";
	exit 0;
}

$0 =~ /memcached_bytes_(\d+_\d+_\d+_\d+)_(\d+)$/;
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 "bytes.value " . $memstats->{hosts}->{$address}->{misc}->{bytes} . "\n";
print "maxbytes.value " .
	$memstats->{hosts}->{$address}->{misc}->{limit_maxbytes} . "\n";