contrib-munin/plugins/memcached/memcached_hits_

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

use strict;
use warnings;

use Cache::Memcached;

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

my $title = $ENV{title} || $address;

my $cmd = shift || '';
if ($cmd eq 'config') {
	print "graph_title Memcached cache hits and misses -- $title\n";
	print "graph_args --base 1000 -l 0\n";
	print "graph_vlabel requests\n";
	print "graph_category memory\n";
	print "graph_info This graph monitors the number of cache hits and misses.\n";
	print "hits.label hits\n";
	print "hits.info Number of cache hits\n";
	print "hits.min 0\n";
	print "hits.type DERIVE\n";
	print "misses.label misses\n";
	print "misses.info Number of cache misses\n";
	print "misses.min 0\n";
	print "misses.type DERIVE\n";
	print "misses.draw AREA\n";
	exit 0;
}

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

print "hits.value " . $memstats->{hosts}->{$address}->{misc}->{get_hits} . "\n";
print "misses.value " .
	$memstats->{hosts}->{$address}->{misc}->{get_misses} . "\n";