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Gleb Voronich 2010-06-01 19:17:27 +02:00 • committed by Steve Schnepp
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commit b54782b721
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#!/usr/bin/perl -w
#
## Copyright (C) 2009 Gleb Voronich <http://stanly.net.ua/>
##
## This program is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License
## as published by the Free Software Foundation; version 2 dated June,
## 1991.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
##
##
## $Log$
##
## Based on Redis module code v0.08 2009/from http://svn.rot13.org/index.cgi/Redis
##
## Installation process:
##
## 1. Download the plugin to your plugins directory (e.g. /usr/share/munin/plugins)
## 2. Create 3 symlinks at the directory that us used by munin for plugins detection (e.g. /etc/munin/plugins): redis_connected_clients, redis_per_sec and and redis_used_memory
## 3. Edit plugin-conf.d/munin-node if it is needed (env.host and env.port variables are accepted)
## 4. Restart munin-node service
use strict;
use IO::Socket::INET;
use Switch;
my $HOST = exists $ENV{'host'} ? $ENV{'host'} : "127.0.0.1";
my $PORT = exists $ENV{'port'} ? $ENV{'port'} : 6379;
my $server = "$HOST:$PORT";
my $sock = IO::Socket::INET->new(
PeerAddr => $server,
Proto => 'tcp'
);
print $sock "INFO\r\n";
my $result = <$sock> || die "can't read socket: $!";
my $rep;
read($sock, $rep, substr($result,1)) || die "can't read from socket: $!";
my $hash;
foreach (split(/\r\n/, $rep)) {
my ($key,$val) = split(/:/, $_, 2);
$hash->{$key} = $val;
}
close ($sock);
$0 =~ s/(.+)redis_//g;
switch ($0) {
case "connected_clients" {
if ( defined $ARGV[0] and $ARGV[0] eq "config" ) {
print "graph_title Connected clients\n";
print "graph_vlabel Connected clients\n";
print "connected_clients.label connected clients\n";
print "graph_category redis\n";
exit 0;
}
print "connected_clients.value " . $hash->{'connected_clients'} . "\n";
}
case "per_sec" {
if ( defined $ARGV[0] and $ARGV[0] eq "config" ) {
print "graph_title Per second\n";
print "graph_vlabel per \${graph_period}\n";
print "graph_category redis\n";
print "requests.label requests\n";
print "requests.type COUNTER\n";
print "connections.label connections\n";
print "connections.type COUNTER\n";
exit 0;
}
print "requests.value ". $hash->{'total_commands_processed'} ."\n";
print "connections.value ". $hash->{'total_connections_received'} ."\n";
}
case "used_memory" {
if ( defined $ARGV[0] and $ARGV[0] eq "config" ) {
print "graph_title Used memory\n";
print "graph_vlabel Used memory\n";
print "used_memory.label used memory\n";
print "graph_category redis\n";
exit 0;
}
print "used_memory.value ". $hash->{'used_memory'} ."\n";
}
}