From cfcf6203ebb8656a22e02ebf87fe8ec610c09bd1 Mon Sep 17 00:00:00 2001
From: Jordi Sanfeliu <jordi@fibranet.cat>
Date: Thu, 26 Feb 2015 15:42:22 +0100
Subject: [PATCH] added a complete graph for Varnish proxy cache

---
 lib/varnish.pm | 1150 ++++++++++++++++++++++++++++++++++++++++++++++++
 monitorix.conf |   19 +-
 2 files changed, 1167 insertions(+), 2 deletions(-)
 create mode 100644 lib/varnish.pm

diff --git a/lib/varnish.pm b/lib/varnish.pm
new file mode 100644
index 0000000..1afcf87
--- /dev/null
+++ b/lib/varnish.pm
@@ -0,0 +1,1150 @@
+#
+# Monitorix - A lightweight system monitoring tool.
+#
+# Copyright (C) 2005-2015 by Jordi Sanfeliu <jordi@fibranet.cat>
+#
+# 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; either version 2 of the License, or
+# (at your option) any later version.
+#
+# 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.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+
+package varnish;
+
+use strict;
+use warnings;
+use Monitorix;
+use RRDs;
+use IO::Socket;
+use Exporter 'import';
+our @EXPORT = qw(varnish_init varnish_update varnish_cgi);
+
+sub varnish_init {
+	my $myself = (caller(0))[3];
+	my ($package, $config, $debug) = @_;
+	my $rrd = $config->{base_lib} . $package . ".rrd";
+
+	my $info;
+	my @rra;
+	my @tmp;
+	my $n;
+
+	my @average;
+	my @min;
+	my @max;
+	my @last;
+
+	if(-e $rrd) {
+		$info = RRDs::info($rrd);
+		for my $key (keys %$info) {
+			if(index($key, 'rra[') == 0) {
+				if(index($key, '.rows') != -1) {
+					push(@rra, substr($key, 4, index($key, ']') - 4));
+				}
+													}
+		}
+		if(scalar(@rra) < 12 + (4 * $config->{max_historic_years})) {
+			logger("$myself: Detected size mismatch between 'max_historic_years' (" . $config->{max_historic_years} . ") and $rrd (" . ((scalar(@rra) -12) / 4) . "). Resizing it accordingly. All historical data will be lost. Backup file created.");
+			rename($rrd, "$rrd.bak");
+		}
+	}
+
+	if(!(-e $rrd)) {
+		logger("Creating '$rrd' file.");
+		for($n = 1; $n <= $config->{max_historic_years}; $n++) {
+			push(@average, "RRA:AVERAGE:0.5:1440:" . (365 * $n));
+			push(@min, "RRA:MIN:0.5:1440:" . (365 * $n));
+			push(@max, "RRA:MAX:0.5:1440:" . (365 * $n));
+			push(@last, "RRA:LAST:0.5:1440:" . (365 * $n));
+		}
+		push(@tmp, "DS:varn" . "0" . "_cconn:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_cdrop:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_creq:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_chit:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_chitp:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_cmiss:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_bconn:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_bunhe:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_bbusy:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_bfail:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_breus:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_btool:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_brecy:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_bretr:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_nwcre:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_nwfai:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_nwmax:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_nwque:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_nwdro:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_nlnuk:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_nlmov:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_nsob:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_nsoc:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_nsoh:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_nswl:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_hdrb:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_bodb:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_val01:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_val02:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_val03:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_val04:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_val05:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_val06:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_val07:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_val08:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_val09:GAUGE:120:0:U");
+		push(@tmp, "DS:varn" . "0" . "_val10:GAUGE:120:0:U");
+		eval {
+			RRDs::create($rrd,
+				"--step=60",
+				@tmp,
+				"RRA:AVERAGE:0.5:1:1440",
+				"RRA:AVERAGE:0.5:30:336",
+				"RRA:AVERAGE:0.5:60:744",
+				@average,
+				"RRA:MIN:0.5:1:1440",
+				"RRA:MIN:0.5:30:336",
+				"RRA:MIN:0.5:60:744",
+				@min,
+				"RRA:MAX:0.5:1:1440",
+				"RRA:MAX:0.5:30:336",
+				"RRA:MAX:0.5:60:744",
+				@max,
+				"RRA:LAST:0.5:1:1440",
+				"RRA:LAST:0.5:30:336",
+				"RRA:LAST:0.5:60:744",
+				@last,
+			);
+		};
+		my $err = RRDs::error;
+		if($@ || $err) {
+			logger("$@") unless !$@;
+			if($err) {
+				logger("ERROR: while creating $rrd: $err");
+				if($err eq "RRDs::error") {
+					logger("... is the RRDtool Perl package installed?");
+				}
+			}
+			return;
+		}
+	}
+
+	$config->{varnish_hist} = ();
+	push(@{$config->{func_update}}, $package);
+	logger("$myself: Ok") if $debug;
+}
+
+sub varnish_update {
+	my $myself = (caller(0))[3];
+	my ($package, $config, $debug) = @_;
+	my $rrd = $config->{base_lib} . $package . ".rrd";
+	my $varnish = $config->{varnish};
+
+	my $n;
+	my $rrdata = "N";
+
+	my $cconn = 0;
+	my $cdrop = 0;
+	my $creq = 0;
+	my $chit = 0;
+	my $chitp = 0;
+	my $cmiss = 0;
+	my $bconn = 0;
+	my $bunhe = 0;
+	my $bbusy = 0;
+	my $bfail = 0;
+	my $breus = 0;
+	my $btool = 0;
+	my $brecy = 0;
+	my $bretr = 0;
+	my $nwcre = 0;
+	my $nwfai = 0;
+	my $nwmax = 0;
+	my $nwque = 0;
+	my $nwdro = 0;
+	my $nlnuk = 0;
+	my $nlmov = 0;
+	my $nsob = 0;
+	my $nsoc = 0;
+	my $nsoh = 0;
+	my $nswl = 0;
+	my $hdrb = 0;
+	my $bodb = 0;
+
+	my $e = 0;
+	my $str;
+
+	open(IN, "varnishstat -1 |");
+	while(<IN>) {
+		if(/^client_conn\s+(\d+)\s+/) {
+			$str = $e . "cconn";
+			$cconn = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$cconn = 0 unless $cconn != $1;
+			$cconn /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^client_drop\s+(\d+)\s+/) {
+			$str = $e . "cdrop";
+			$cdrop = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$cdrop = 0 unless $cdrop != $1;
+			$cdrop /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^client_req\s+(\d+)\s+/) {
+			$str = $e . "creq";
+			$creq = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$creq = 0 unless $creq != $1;
+			$creq /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^cache_hit\s+(\d+)\s+/) {
+			$str = $e . "chit";
+			$chit = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$chit = 0 unless $chit != $1;
+			$chit /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^cache_hitpass\s+(\d+)\s+/) {
+			$str = $e . "chitp";
+			$chitp = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$chitp = 0 unless $chitp != $1;
+			$chitp /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^cache_miss\s+(\d+)\s+/) {
+			$str = $e . "cmiss";
+			$cmiss = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$cmiss = 0 unless $cmiss != $1;
+			$cmiss /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^backend_conn\s+(\d+)\s+/) {
+			$str = $e . "bconn";
+			$bconn = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$bconn = 0 unless $bconn != $1;
+			$bconn /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^backend_unhealthy\s+(\d+)\s+/) {
+			$str = $e . "bunhe";
+			$bunhe = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$bunhe = 0 unless $bunhe != $1;
+			$bunhe /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^backend_busy\s+(\d+)\s+/) {
+			$str = $e . "bbusy";
+			$bbusy = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$bbusy = 0 unless $bbusy != $1;
+			$bbusy /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^backend_fail\s+(\d+)\s+/) {
+			$str = $e . "bfail";
+			$bfail = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$bfail = 0 unless $bfail != $1;
+			$bfail /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^backend_reuse\s+(\d+)\s+/) {
+			$str = $e . "breus";
+			$breus = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$breus = 0 unless $breus != $1;
+			$breus /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^backend_toolate\s+(\d+)\s+/) {
+			$str = $e . "btool";
+			$btool = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$btool = 0 unless $btool != $1;
+			$btool /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^backend_recycle\s+(\d+)\s+/) {
+			$str = $e . "brecy";
+			$brecy = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$brecy = 0 unless $brecy != $1;
+			$brecy /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^backend_retry\s+(\d+)\s+/) {
+			$str = $e . "bretr";
+			$bretr = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$bretr = 0 unless $bretr != $1;
+			$bretr /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^n_wrk_create\s+(\d+)\s+/) {
+			$str = $e . "nwcre";
+			$nwcre = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$nwcre = 0 unless $nwcre != $1;
+			$nwcre /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^n_wrk_failed\s+(\d+)\s+/) {
+			$str = $e . "nwfai";
+			$nwfai = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$nwfai = 0 unless $nwfai != $1;
+			$nwfai /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^n_wrk_max\s+(\d+)\s+/) {
+			$str = $e . "nwmax";
+			$nwmax = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$nwmax = 0 unless $nwmax != $1;
+			$nwmax /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^n_wrk_queued\s+(\d+)\s+/) {
+			$str = $e . "nwque";
+			$nwque = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$nwque = 0 unless $nwque != $1;
+			$nwque /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^n_wrk_drop\s+(\d+)\s+/) {
+			$str = $e . "nwdro";
+			$nwdro = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$nwdro = 0 unless $nwdro != $1;
+			$nwdro /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^n_lru_nuked\s+(\d+)\s+/) {
+			$str = $e . "nlnuk";
+			$nlnuk = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$nlnuk = 0 unless $nlnuk != $1;
+			$nlnuk /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^n_lru_moved\s+(\d+)\s+/) {
+			$str = $e . "nlmov";
+			$nlmov = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$nlmov = 0 unless $nlmov != $1;
+			$nlmov /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^n_object\s+(\d+)\s+/) {
+			$nsob = $1;
+		}
+		if(/^n_objectcore\s+(\d+)\s+/) {
+			$nsoc = $1;
+		}
+		if(/^n_objecthead\s+(\d+)\s+/) {
+			$nsoh = $1;
+		}
+		if(/^n_waitinglist\s+(\d+)\s+/) {
+			$nswl = $1;
+		}
+		if(/^s_hdrbytes\s+(\d+)\s+/) {
+			$str = $e . "hdrb";
+			$hdrb = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$hdrb = 0 unless $hdrb != $1;
+			$hdrb /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+		if(/^s_bodybytes\s+(\d+)\s+/) {
+			$str = $e . "bodb";
+			$bodb = $1 - ($config->{varnish_hist}->{$str} || 0);
+			$bodb = 0 unless $bodb != $1;
+			$bodb /= 60;
+			$config->{varnish_hist}->{$str} = $1;
+		}
+	}
+	close(IN);
+	$rrdata .= ":$cconn:$cdrop:$creq:$chit:$chitp:$cmiss:$bconn:$bunhe:$bbusy:$bfail:$breus:$btool:$brecy:$bretr:$nwcre:$nwfai:$nwmax:$nwque:$nwdro:$nlnuk:$nlmov:$nsob:$nsoc:$nsoh:$nswl:$hdrb:$bodb:0:0:0:0:0:0:0:0:0:0";
+
+	RRDs::update($rrd, $rrdata);
+	logger("$myself: $rrdata") if $debug;
+	my $err = RRDs::error;
+	logger("ERROR: while updating $rrd: $err") if $err;
+}
+
+sub varnish_cgi {
+	my $myself = (caller(0))[3];
+	my ($package, $config, $cgi) = @_;
+
+	my $varnish = $config->{varnish};
+	my @rigid = split(',', ($varnish->{rigid} || ""));
+	my @limit = split(',', ($varnish->{limit} || ""));
+	my $tf = $cgi->{tf};
+	my $colors = $cgi->{colors};
+	my $graph = $cgi->{graph};
+	my $silent = $cgi->{silent};
+	my $zoom = "--zoom=" . $config->{global_zoom};
+	my %rrd = (
+		'new' => \&RRDs::graphv,
+		'old' => \&RRDs::graph,
+	);
+	my $version = "new";
+	my $pic;
+	my $picz;
+	my $picz_width;
+	my $picz_height;
+
+	my $u = "";
+	my $width;
+	my $height;
+	my @riglim;
+	my @tmp;
+	my @tmpz;
+	my @CDEF;
+	my $n;
+	my $err;
+
+	$version = "old" if $RRDs::VERSION < 1.3;
+	my $rrd = $config->{base_lib} . $package . ".rrd";
+	my $title = $config->{graph_title}->{$package};
+	my $PNG_DIR = $config->{base_dir} . "/" . $config->{imgs_dir};
+
+	$title = !$silent ? $title : "";
+
+
+	# text mode
+	#
+	if(lc($config->{iface_mode}) eq "text") {
+		if($title) {
+			main::graph_header($title, 2);
+			print("    <tr>\n");
+			print("    <td bgcolor='$colors->{title_bg_color}'>\n");
+		}
+		my (undef, undef, undef, $data) = RRDs::fetch("$rrd",
+			"--start=-$tf->{nwhen}$tf->{twhen}",
+			"AVERAGE",
+			"-r $tf->{res}");
+		$err = RRDs::error;
+		print("ERROR: while fetching $rrd: $err\n") if $err;
+		my $line1;
+		my $line2;
+		print("    <pre style='font-size: 12px; color: $colors->{fg_color}';>\n");
+		print("    ");
+		$line1 = "    Cli.Conn Cli.Drop Cli.Reqs Cac.Hits Cac.HitP Cac.Miss Bac.Conn Bac.Unhe Bac.Busy Bac.Fail Bac.Reus Bac.Tool Bac.Recy Bac.Retr N.W.Crea N.W.FAil  N.W.Max N.W.Queu N.W.Drop N.L.Nuke N.L.Move N.S.Obje N.S.ObjC N.S.ObjH N.S.Wait Bytes_Hdr Bytes_Bdy";
+		$line2 = "--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------";
+		print("\n");
+		print("Time$line1\n");
+		print("----$line2 \n");
+		my $line;
+		my @row;
+		my $time;
+		my $n2;
+		for($n = 0, $time = $tf->{tb}; $n < ($tf->{tb} * $tf->{ts}); $n++) {
+			$line = @$data[$n];
+			$time = $time - (1 / $tf->{ts});
+			printf(" %2d$tf->{tc}", $time);
+			undef(@row);
+			my ($cconn, $cdrop, $creq, $chit, $chitp, $cmiss, $bconn, $bunhe, $bbusy, $bfail, $breus, $btool, $brecy, $bretr, $nwcre, $nwfai, $nwmax, $nwque, $nwdro, $nlnuk, $nlmov, $nsob, $nsoc, $nsoh, $nswl, $hdrb, $bodb) = @$line[0..37];
+			printf("    %8.1f %8.1f %8.1f %8.1f %8.1f %8.1f %8.1f %8.1f %8.1f %8.1f %8.1f %8.1f %8.1f %8.1f %8.1f %8d %8d %8.1f %8.1f %8.1f %8.1f %8.1f %8.1f %8.1f %8.1f %9d %9d", $cconn || 0, $cdrop || 0, $creq || 0, $chit || 0, $chitp || 0, $cmiss || 0, $bconn || 0, $bunhe || 0, $bbusy || 0, $bfail || 0, $breus || 0, $btool || 0, $brecy || 0, $bretr || 0, $nwcre || 0, $nwfai || 0, $nwmax || 0, $nwque || 0, $nwdro || 0, $nlnuk || 0, $nlmov || 0, $nsob || 0, $nsoc || 0, $nsoh || 0, $nswl || 0, $hdrb || 0, $bodb || 0);
+			print("\n");
+		}
+		print("    </pre>\n");
+		if($title) {
+			print("    </td>\n");
+			print("    </tr>\n");
+			main::graph_footer();
+		}
+		print("  <br>\n");
+		return;
+	}
+
+
+	# graph mode
+	#
+	if($silent eq "yes" || $silent eq "imagetag") {
+		$colors->{fg_color} = "#000000";  # visible color for text mode
+		$u = "_";
+	}
+	if($silent eq "imagetagbig") {
+		$colors->{fg_color} = "#000000";  # visible color for text mode
+		$u = "";
+	}
+
+	my $PNG1 = $u . $package . "1." . $tf->{when} . ".png";
+	my $PNG2 = $u . $package . "2." . $tf->{when} . ".png";
+	my $PNG3 = $u . $package . "3." . $tf->{when} . ".png";
+	my $PNG4 = $u . $package . "4." . $tf->{when} . ".png";
+	my $PNG5 = $u . $package . "5." . $tf->{when} . ".png";
+	my $PNG6 = $u . $package . "6." . $tf->{when} . ".png";
+	my $PNG1z = $u . $package . "1z." . $tf->{when} . ".png";
+	my $PNG2z = $u . $package . "2z." . $tf->{when} . ".png";
+	my $PNG3z = $u . $package . "3z." . $tf->{when} . ".png";
+	my $PNG4z = $u . $package . "4z." . $tf->{when} . ".png";
+	my $PNG5z = $u . $package . "5z." . $tf->{when} . ".png";
+	my $PNG6z = $u . $package . "6z." . $tf->{when} . ".png";
+	unlink ("$PNG_DIR" . "$PNG1",
+		"$PNG_DIR" . "$PNG2",
+		"$PNG_DIR" . "$PNG3",
+		"$PNG_DIR" . "$PNG4",
+		"$PNG_DIR" . "$PNG5",
+		"$PNG_DIR" . "$PNG6");
+	if(lc($config->{enable_zoom}) eq "y") {
+		unlink ("$PNG_DIR" . "$PNG1z",
+			"$PNG_DIR" . "$PNG2z",
+			"$PNG_DIR" . "$PNG3z",
+			"$PNG_DIR" . "$PNG4z",
+			"$PNG_DIR" . "$PNG5z",
+			"$PNG_DIR" . "$PNG6z");
+	}
+
+	my $uptimeline = 0;
+	open(IN, "varnishstat -1 |");
+	while(<IN>) {
+		if(/^uptime\s+(\d+)\s+/) {
+			$uptimeline = $1;
+			last;
+		}
+	}
+	close(IN);
+	if($RRDs::VERSION > 1.2) {
+		$uptimeline = "COMMENT:uptime\\: " . uptime2str(trim($uptimeline)) . "\\c";
+	} else {
+		$uptimeline = "COMMENT:uptime: " . uptime2str(trim($uptimeline)) . "\\c";
+	}
+
+	if($title) {
+		main::graph_header($title, 2);
+		print("    <tr>\n");
+		print("    <td valign='top' bgcolor='$colors->{title_bg_color}'>\n");
+	}
+
+	@riglim = @{setup_riglim($rigid[0], $limit[0])};
+	push(@tmp, "LINE2:nwcre#44EE44:Worker threads created");
+	push(@tmp, "GPRINT:nwcre:LAST:Current\\: %4.1lf");
+	push(@tmp, "GPRINT:nwcre:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:nwcre:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:nwcre:MAX:  Max\\: %4.1lf\\n");
+	push(@tmp, "LINE2:nwfai#448844:Worker threads failed");
+	push(@tmp, "GPRINT:nwfai:LAST: Current\\: %4.1lf");
+	push(@tmp, "GPRINT:nwfai:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:nwfai:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:nwfai:MAX:  Max\\: %4.1lf\\n");
+	push(@tmp, "LINE2:nwmax#44EEEE:Worker threads limited");
+	push(@tmp, "GPRINT:nwmax:LAST:Current\\: %4.1lf");
+	push(@tmp, "GPRINT:nwmax:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:nwmax:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:nwmax:MAX:  Max\\: %4.1lf\\n");
+	push(@tmp, "LINE2:nwque#4444EE:Queued work requests");
+	push(@tmp, "GPRINT:nwque:LAST:  Current\\: %4.1lf");
+	push(@tmp, "GPRINT:nwque:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:nwque:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:nwque:MAX:  Max\\: %4.1lf\\n");
+	push(@tmp, "LINE2:nwdro#EE44EE:Dropped work requests");
+	push(@tmp, "GPRINT:nwdro:LAST: Current\\: %4.1lf");
+	push(@tmp, "GPRINT:nwdro:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:nwdro:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:nwdro:MAX:  Max\\: %4.1lf\\n");
+	push(@tmp, "LINE2:nlnuk#EE4444:LRU nuked objects");
+	push(@tmp, "GPRINT:nlnuk:LAST:     Current\\: %4.1lf");
+	push(@tmp, "GPRINT:nlnuk:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:nlnuk:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:nlnuk:MAX:  Max\\: %4.1lf\\n");
+	push(@tmp, "LINE2:nlmov#EEEE44:LRU moved objects");
+	push(@tmp, "GPRINT:nlmov:LAST:     Current\\: %4.1lf");
+	push(@tmp, "GPRINT:nlmov:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:nlmov:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:nlmov:MAX:  Max\\: %4.1lf\\n");
+	push(@tmpz, "LINE2:nwcre#44EE44:Worker threads created");
+	push(@tmpz, "LINE2:nwfai#448844:Worker threads failed");
+	push(@tmpz, "LINE2:nwmax#44EEEE:Worker threads limited");
+	push(@tmpz, "LINE2:nwque#4444EE:Queued work requests");
+	push(@tmpz, "LINE2:nwdro#EE44EE:Dropped work requests");
+	push(@tmpz, "LINE2:nlnuk#EE4444:LRU nuked objects");
+	push(@tmpz, "LINE2:nlmov#EEEE44:LRU moved objects");
+	if(lc($config->{show_gaps}) eq "y") {
+		push(@tmp, "AREA:wrongdata#$colors->{gap}:");
+		push(@tmpz, "AREA:wrongdata#$colors->{gap}:");
+		push(@CDEF, "CDEF:wrongdata=allvalues,UN,INF,UNKN,IF");
+	}
+	($width, $height) = split('x', $config->{graph_size}->{main});
+	if($silent =~ /imagetag/) {
+		($width, $height) = split('x', $config->{graph_size}->{remote}) if $silent eq "imagetag";
+		($width, $height) = split('x', $config->{graph_size}->{main}) if $silent eq "imagetagbig";
+		@tmp = @tmpz;
+	}
+	$pic = $rrd{$version}->("$PNG_DIR" . "$PNG1",
+		"--title=$config->{graphs}->{_varnish1}  ($tf->{nwhen}$tf->{twhen})",
+		"--start=-$tf->{nwhen}$tf->{twhen}",
+		"--imgformat=PNG",
+		"--vertical-label=Values/s",
+		"--width=$width",
+		"--height=$height",
+		@riglim,
+		$zoom,
+		@{$cgi->{version12}},
+		@{$colors->{graph_colors}},
+		"DEF:nwcre=$rrd:varn0" . "_nwcre:AVERAGE",
+		"DEF:nwfai=$rrd:varn0" . "_nwfai:AVERAGE",
+		"DEF:nwmax=$rrd:varn0" . "_nwmax:AVERAGE",
+		"DEF:nwque=$rrd:varn0" . "_nwque:AVERAGE",
+		"DEF:nwdro=$rrd:varn0" . "_nwdro:AVERAGE",
+		"DEF:nlnuk=$rrd:varn0" . "_nlnuk:AVERAGE",
+		"DEF:nlmov=$rrd:varn0" . "_nlmov:AVERAGE",
+		"CDEF:allvalues=nwcre,nwfai,nwmax,nwque,nwdro,nlnuk,nlmov,+,+,+,+,+,+",
+		@CDEF,
+		@tmp,
+		"COMMENT: \\n",
+		$uptimeline);
+	$err = RRDs::error;
+	print("ERROR: while graphing $PNG_DIR" . "$PNG1: $err\n") if $err;
+	if(lc($config->{enable_zoom}) eq "y") {
+		($width, $height) = split('x', $config->{graph_size}->{zoom});
+		$picz = $rrd{$version}->("$PNG_DIR" . "$PNG1z",
+			"--title=$config->{graphs}->{_varnish1}  ($tf->{nwhen}$tf->{twhen})",
+			"--start=-$tf->{nwhen}$tf->{twhen}",
+			"--imgformat=PNG",
+			"--vertical-label=Values/s",
+			"--width=$width",
+			"--height=$height",
+			@riglim,
+			$zoom,
+			@{$cgi->{version12}},
+			@{$colors->{graph_colors}},
+			"DEF:nwcre=$rrd:varn0" . "_nwcre:AVERAGE",
+			"DEF:nwfai=$rrd:varn0" . "_nwfai:AVERAGE",
+			"DEF:nwmax=$rrd:varn0" . "_nwmax:AVERAGE",
+			"DEF:nwque=$rrd:varn0" . "_nwque:AVERAGE",
+			"DEF:nwdro=$rrd:varn0" . "_nwdro:AVERAGE",
+			"DEF:nlnuk=$rrd:varn0" . "_nlnuk:AVERAGE",
+			"DEF:nlmov=$rrd:varn0" . "_nlmov:AVERAGE",
+			"CDEF:allvalues=nwcre,nwfai,nwmax,nwque,nwdro,nlnuk,nlmov,+,+,+,+,+,+",
+			@CDEF,
+			@tmpz);
+		$err = RRDs::error;
+		print("ERROR: while graphing $PNG_DIR" . "$PNG1z: $err\n") if $err;
+	}
+	if($title || ($silent =~ /imagetag/ && $graph =~ /varnish1/)) {
+		if(lc($config->{enable_zoom}) eq "y") {
+			if(lc($config->{disable_javascript_void}) eq "y") {
+				print("      <a href=\"" . $config->{url} . "/" . $config->{imgs_dir} . $PNG1z . "\"><img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG1 . "' border='0'></a>\n");
+		} else {
+			if($version eq "new") {
+				$picz_width = $picz->{image_width} * $config->{global_zoom};
+				$picz_height = $picz->{image_height} * $config->{global_zoom};
+			} else {
+				$picz_width = $width + 115;
+				$picz_height = $height + 100;
+			}
+			print("      <a href=\"javascript:void(window.open('" . $config->{url} . "/" . $config->{imgs_dir} . $PNG1z . "','','width=" . $picz_width . ",height=" . $picz_height . ",scrollbars=0,resizable=0'))\"><img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG1 . "' border='0'></a>\n");
+				}
+		} else {
+			print("      <img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG1 . "'>\n");
+		}
+	}
+
+	@riglim = @{setup_riglim($rigid[1], $limit[1])};
+	undef(@tmp);
+	undef(@tmpz);
+	undef(@CDEF);
+	push(@tmp, "LINE2:bconn#44EEEE:Conn. success");
+	push(@tmp, "GPRINT:bconn:LAST:         Current\\: %4.1lf");
+	push(@tmp, "GPRINT:bconn:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:bconn:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:bconn:MAX:  Max\\: %4.1lf\\n");
+	push(@tmp, "LINE2:bunhe#4444EE:Conn. not attempted");
+	push(@tmp, "GPRINT:bunhe:LAST:   Current\\: %4.1lf");
+	push(@tmp, "GPRINT:bunhe:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:bunhe:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:bunhe:MAX:  Max\\: %4.1lf\\n");
+	push(@tmp, "LINE2:bbusy#EEEE44:Too many connections");
+	push(@tmp, "GPRINT:bbusy:LAST:  Current\\: %4.1lf");
+	push(@tmp, "GPRINT:bbusy:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:bbusy:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:bbusy:MAX:  Max\\: %4.1lf\\n");
+	push(@tmp, "LINE2:bfail#FFA500:Conn. failures");
+	push(@tmp, "GPRINT:bfail:LAST:        Current\\: %4.1lf");
+	push(@tmp, "GPRINT:bfail:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:bfail:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:bfail:MAX:  Max\\: %4.1lf\\n");
+	push(@tmp, "LINE2:breus#EE4444:Conn. reuses");
+	push(@tmp, "GPRINT:breus:LAST:          Current\\: %4.1lf");
+	push(@tmp, "GPRINT:breus:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:breus:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:breus:MAX:  Max\\: %4.1lf\\n");
+	push(@tmp, "LINE2:btool#EE44EE:Conn. was closed");
+	push(@tmp, "GPRINT:btool:LAST:      Current\\: %4.1lf");
+	push(@tmp, "GPRINT:btool:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:btool:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:btool:MAX:  Max\\: %4.1lf\\n");
+	push(@tmp, "LINE2:brecy#963C74:Conn. recycles");
+	push(@tmp, "GPRINT:brecy:LAST:        Current\\: %4.1lf");
+	push(@tmp, "GPRINT:brecy:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:brecy:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:brecy:MAX:  Max\\: %4.1lf\\n");
+	push(@tmp, "LINE2:bretr#888888:Conn. retry");
+	push(@tmp, "GPRINT:bretr:LAST:           Current\\: %4.1lf");
+	push(@tmp, "GPRINT:bretr:AVERAGE:  Average\\: %4.1lf");
+	push(@tmp, "GPRINT:bretr:MIN:  Min\\: %4.1lf");
+	push(@tmp, "GPRINT:bretr:MAX:  Max\\: %4.1lf\\n");
+	push(@tmpz, "LINE2:bconn#44EEEE:Conn. success");
+	push(@tmpz, "LINE2:bunhe#4444EE:Conn. not attempted");
+	push(@tmpz, "LINE2:bbusy#EEEE44:Too many connections");
+	push(@tmpz, "LINE2:bfail#FFA500:Conn. failures");
+	push(@tmpz, "LINE2:breus#EE4444:Conn. reuses");
+	push(@tmpz, "LINE2:btool#EE44EE:Conn. was closed");
+	push(@tmpz, "LINE2:brecy#963C74:Conn. recycles");
+	push(@tmpz, "LINE2:bretr#888888:Conn. retry");
+	if(lc($config->{show_gaps}) eq "y") {
+		push(@tmp, "AREA:wrongdata#$colors->{gap}:");
+		push(@tmpz, "AREA:wrongdata#$colors->{gap}:");
+		push(@CDEF, "CDEF:wrongdata=allvalues,UN,INF,UNKN,IF");
+	}
+	($width, $height) = split('x', $config->{graph_size}->{main});
+	if($silent =~ /imagetag/) {
+		($width, $height) = split('x', $config->{graph_size}->{remote}) if $silent eq "imagetag";
+		($width, $height) = split('x', $config->{graph_size}->{main}) if $silent eq "imagetagbig";
+		@tmp = @tmpz;
+	}
+	$pic = $rrd{$version}->("$PNG_DIR" . "$PNG2",
+		"--title=$config->{graphs}->{_varnish2}  ($tf->{nwhen}$tf->{twhen})",
+		"--start=-$tf->{nwhen}$tf->{twhen}",
+		"--imgformat=PNG",
+		"--vertical-label=Values/s",
+		"--width=$width",
+		"--height=$height",
+		@riglim,
+		$zoom,
+		@{$cgi->{version12}},
+		@{$colors->{graph_colors}},
+		"DEF:bconn=$rrd:varn0" . "_bconn:AVERAGE",
+		"DEF:bunhe=$rrd:varn0" . "_bunhe:AVERAGE",
+		"DEF:bbusy=$rrd:varn0" . "_bbusy:AVERAGE",
+		"DEF:bfail=$rrd:varn0" . "_bfail:AVERAGE",
+		"DEF:breus=$rrd:varn0" . "_breus:AVERAGE",
+		"DEF:btool=$rrd:varn0" . "_btool:AVERAGE",
+		"DEF:brecy=$rrd:varn0" . "_brecy:AVERAGE",
+		"DEF:bretr=$rrd:varn0" . "_bretr:AVERAGE",
+		"CDEF:allvalues=bconn,bunhe,bbusy,bfail,breus,btool,brecy,bretr,+,+,+,+,+,+,+",
+		@CDEF,
+		@tmp);
+	$err = RRDs::error;
+	print("ERROR: while graphing $PNG_DIR" . "$PNG2: $err\n") if $err;
+	if(lc($config->{enable_zoom}) eq "y") {
+		($width, $height) = split('x', $config->{graph_size}->{zoom});
+		$picz = $rrd{$version}->("$PNG_DIR" . "$PNG2z",
+			"--title=$config->{graphs}->{_varnish2}  ($tf->{nwhen}$tf->{twhen})",
+			"--start=-$tf->{nwhen}$tf->{twhen}",
+			"--imgformat=PNG",
+			"--vertical-label=Values/s",
+			"--width=$width",
+			"--height=$height",
+			@riglim,
+			$zoom,
+			@{$cgi->{version12}},
+			@{$colors->{graph_colors}},
+			"DEF:bconn=$rrd:varn0" . "_bconn:AVERAGE",
+			"DEF:bunhe=$rrd:varn0" . "_bunhe:AVERAGE",
+			"DEF:bbusy=$rrd:varn0" . "_bbusy:AVERAGE",
+			"DEF:bfail=$rrd:varn0" . "_bfail:AVERAGE",
+			"DEF:breus=$rrd:varn0" . "_breus:AVERAGE",
+			"DEF:btool=$rrd:varn0" . "_btool:AVERAGE",
+			"DEF:brecy=$rrd:varn0" . "_brecy:AVERAGE",
+			"DEF:bretr=$rrd:varn0" . "_bretr:AVERAGE",
+			"CDEF:allvalues=bconn,bunhe,bbusy,bfail,breus,btool,brecy,bretr,+,+,+,+,+,+,+",
+			@CDEF,
+			@tmpz);
+		$err = RRDs::error;
+		print("ERROR: while graphing $PNG_DIR" . "$PNG2z: $err\n") if $err;
+	}
+	if($title || ($silent =~ /imagetag/ && $graph =~ /varnish2/)) {
+		if(lc($config->{enable_zoom}) eq "y") {
+			if(lc($config->{disable_javascript_void}) eq "y") {
+				print("      <a href=\"" . $config->{url} . "/" . $config->{imgs_dir} . $PNG2z . "\"><img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG2 . "' border='0'></a>\n");
+			} else {
+				if($version eq "new") {
+					$picz_width = $picz->{image_width} * $config->{global_zoom};
+					$picz_height = $picz->{image_height} * $config->{global_zoom};
+				} else {
+					$picz_width = $width + 115;
+					$picz_height = $height + 100;
+				}
+				print("      <a href=\"javascript:void(window.open('" . $config->{url} . "/" . $config->{imgs_dir} . $PNG2z . "','','width=" . $picz_width . ",height=" . $picz_height . ",scrollbars=0,resizable=0'))\"><img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG2 . "' border='0'></a>\n");
+			}
+		} else {
+			print("      <img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG2 . "'>\n");
+		}
+	}
+
+	if($title) {
+		print("    </td>\n");
+		print("    <td valign='top' bgcolor='" . $colors->{title_bg_color} . "'>\n");
+	}
+
+	@riglim = @{setup_riglim($rigid[2], $limit[2])};
+	undef(@tmp);
+	undef(@tmpz);
+	undef(@CDEF);
+	push(@tmp, "LINE2:cconn#44EEEE:Conn. accepted");
+	push(@tmp, "GPRINT:cconn:LAST:       Current\\: %5.1lf\\n");
+	push(@tmp, "LINE2:cdrop#EE4444:Conn. dropped");
+	push(@tmp, "GPRINT:cdrop:LAST:        Current\\: %5.1lf\\n");
+	push(@tmp, "LINE2:creq#44EE44:Req. accepted");
+	push(@tmp, "GPRINT:creq:LAST:        Current\\: %5.1lf\\n");
+	push(@tmpz, "LINE2:cconn#44EEEE:Conn. accepted");
+	push(@tmpz, "LINE2:cdrop#EE4444:Conn. dropped");
+	push(@tmpz, "LINE2:creq#44EE44:Req. accepted");
+	if(lc($config->{show_gaps}) eq "y") {
+		push(@tmp, "AREA:wrongdata#$colors->{gap}:");
+		push(@tmpz, "AREA:wrongdata#$colors->{gap}:");
+		push(@CDEF, "CDEF:wrongdata=allvalues,UN,INF,UNKN,IF");
+	}
+	($width, $height) = split('x', $config->{graph_size}->{small});
+	if($silent =~ /imagetag/) {
+		($width, $height) = split('x', $config->{graph_size}->{remote}) if $silent eq "imagetag";
+		($width, $height) = split('x', $config->{graph_size}->{main}) if $silent eq "imagetagbig";
+		@tmp = @tmpz;
+		push(@tmp, "COMMENT: \\n");
+		push(@tmp, "COMMENT: \\n");
+		push(@tmp, "COMMENT: \\n");
+	}
+	$pic = $rrd{$version}->("$PNG_DIR" . "$PNG3",
+		"--title=$config->{graphs}->{_varnish3}  ($tf->{nwhen}$tf->{twhen})",
+		"--start=-$tf->{nwhen}$tf->{twhen}",
+		"--imgformat=PNG",
+		"--vertical-label=Connections/s",
+		"--width=$width",
+		"--height=$height",
+		@riglim,
+		$zoom,
+		@{$cgi->{version12}},
+		@{$cgi->{version12_small}},
+		@{$colors->{graph_colors}},
+		"DEF:cconn=$rrd:varn0" . "_cconn:AVERAGE",
+		"DEF:cdrop=$rrd:varn0" . "_cdrop:AVERAGE",
+		"DEF:creq=$rrd:varn0" . "_creq:AVERAGE",
+		"CDEF:allvalues=cconn,cdrop,creq,+,+",
+		@CDEF,
+		@tmp);
+	$err = RRDs::error;
+	print("ERROR: while graphing $PNG_DIR" . "$PNG2: $err\n") if $err;
+	if(lc($config->{enable_zoom}) eq "y") {
+		($width, $height) = split('x', $config->{graph_size}->{zoom});
+		$picz = $rrd{$version}->("$PNG_DIR" . "$PNG3z",
+			"--title=$config->{graphs}->{_varnish3}  ($tf->{nwhen}$tf->{twhen})",
+			"--start=-$tf->{nwhen}$tf->{twhen}",
+			"--imgformat=PNG",
+			"--vertical-label=Connections/s",
+			"--width=$width",
+			"--height=$height",
+			@riglim,
+			$zoom,
+			@{$cgi->{version12}},
+			@{$cgi->{version12_small}},
+			@{$colors->{graph_colors}},
+			"DEF:cconn=$rrd:varn0" . "_cconn:AVERAGE",
+			"DEF:cdrop=$rrd:varn0" . "_cdrop:AVERAGE",
+			"DEF:creq=$rrd:varn0" . "_creq:AVERAGE",
+			"CDEF:allvalues=cconn,cdrop,creq,+,+",
+			@CDEF,
+			@tmpz);
+		$err = RRDs::error;
+		print("ERROR: while graphing $PNG_DIR" . "$PNG3z: $err\n") if $err;
+	}
+	if($title || ($silent =~ /imagetag/ && $graph =~ /varnish3/)) {
+		if(lc($config->{enable_zoom}) eq "y") {
+			if(lc($config->{disable_javascript_void}) eq "y") {
+				print("      <a href=\"" . $config->{url} . "/" . $config->{imgs_dir} . $PNG3z . "\"><img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG3 . "' border='0'></a>\n");
+			} else {
+				if($version eq "new") {
+					$picz_width = $picz->{image_width} * $config->{global_zoom};
+					$picz_height = $picz->{image_height} * $config->{global_zoom};
+				} else {
+					$picz_width = $width + 115;
+					$picz_height = $height + 100;
+				}
+				print("      <a href=\"javascript:void(window.open('" . $config->{url} . "/" . $config->{imgs_dir} . $PNG3z . "','','width=" . $picz_width . ",height=" . $picz_height . ",scrollbars=0,resizable=0'))\"><img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG3 . "' border='0'></a>\n");
+			}
+		} else {
+			print("      <img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG3 . "'>\n");
+		}
+	}
+
+	@riglim = @{setup_riglim($rigid[3], $limit[3])};
+	undef(@tmp);
+	undef(@tmpz);
+	undef(@CDEF);
+	push(@tmp, "LINE2:chit#44EEEE:Hits");
+	push(@tmp, "GPRINT:chit:LAST:                 Current\\: %5.1lf\\n");
+	push(@tmp, "LINE2:chitp#4444EE:Hits for pass");
+	push(@tmp, "GPRINT:chitp:LAST:        Current\\: %5.1lf\\n");
+	push(@tmp, "LINE2:cmiss#EE44EE:Misses");
+	push(@tmp, "GPRINT:cmiss:LAST:               Current\\: %5.1lf\\n");
+	push(@tmpz, "LINE2:chit#44EEEE:Hits");
+	push(@tmpz, "LINE2:chitp#4444EE:Hits for pass");
+	push(@tmpz, "LINE2:cmiss#EE44EE:Misses");
+	if(lc($config->{show_gaps}) eq "y") {
+		push(@tmp, "AREA:wrongdata#$colors->{gap}:");
+		push(@tmpz, "AREA:wrongdata#$colors->{gap}:");
+		push(@CDEF, "CDEF:wrongdata=allvalues,UN,INF,UNKN,IF");
+	}
+	($width, $height) = split('x', $config->{graph_size}->{small});
+	if($silent =~ /imagetag/) {
+		($width, $height) = split('x', $config->{graph_size}->{remote}) if $silent eq "imagetag";
+		($width, $height) = split('x', $config->{graph_size}->{main}) if $silent eq "imagetagbig";
+		@tmp = @tmpz;
+		push(@tmp, "COMMENT: \\n");
+		push(@tmp, "COMMENT: \\n");
+		push(@tmp, "COMMENT: \\n");
+	}
+	$pic = $rrd{$version}->("$PNG_DIR" . "$PNG4",
+		"--title=$config->{graphs}->{_varnish4}  ($tf->{nwhen}$tf->{twhen})",
+		"--start=-$tf->{nwhen}$tf->{twhen}",
+		"--imgformat=PNG",
+		"--vertical-label=Values/s",
+		"--width=$width",
+		"--height=$height",
+		@riglim,
+		$zoom,
+		@{$cgi->{version12}},
+		@{$cgi->{version12_small}},
+		@{$colors->{graph_colors}},
+		"DEF:chit=$rrd:varn0" . "_chit:AVERAGE",
+		"DEF:chitp=$rrd:varn0" . "_chitp:AVERAGE",
+		"DEF:cmiss=$rrd:varn0" . "_cmiss:AVERAGE",
+		"CDEF:allvalues=chit,chitp,cmiss,+,+",
+		@CDEF,
+		@tmp);
+	$err = RRDs::error;
+	print("ERROR: while graphing $PNG_DIR" . "$PNG4: $err\n") if $err;
+	if(lc($config->{enable_zoom}) eq "y") {
+		($width, $height) = split('x', $config->{graph_size}->{zoom});
+		$picz = $rrd{$version}->("$PNG_DIR" . "$PNG4z",
+			"--title=$config->{graphs}->{_varnish4}  ($tf->{nwhen}$tf->{twhen})",
+			"--start=-$tf->{nwhen}$tf->{twhen}",
+			"--imgformat=PNG",
+			"--vertical-label=Values/s",
+			"--width=$width",
+			"--height=$height",
+			@riglim,
+			$zoom,
+			@{$cgi->{version12}},
+			@{$cgi->{version12_small}},
+			@{$colors->{graph_colors}},
+			"DEF:chit=$rrd:varn0" . "_chit:AVERAGE",
+			"DEF:chitp=$rrd:varn0" . "_chitp:AVERAGE",
+			"DEF:cmiss=$rrd:varn0" . "_cmiss:AVERAGE",
+			"CDEF:allvalues=chit,chitp,cmiss,+,+",
+			@CDEF,
+			@tmpz);
+		$err = RRDs::error;
+		print("ERROR: while graphing $PNG_DIR" . "$PNG4z: $err\n") if $err;
+	}
+	if($title || ($silent =~ /imagetag/ && $graph =~ /varnish4/)) {
+		if(lc($config->{enable_zoom}) eq "y") {
+			if(lc($config->{disable_javascript_void}) eq "y") {
+				print("      <a href=\"" . $config->{url} . "/" . $config->{imgs_dir} . $PNG4z . "\"><img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG4 . "' border='0'></a>\n");
+			} else {
+				if($version eq "new") {
+					$picz_width = $picz->{image_width} * $config->{global_zoom};
+					$picz_height = $picz->{image_height} * $config->{global_zoom};
+				} else {
+					$picz_width = $width + 115;
+					$picz_height = $height + 100;
+				}
+				print("      <a href=\"javascript:void(window.open('" . $config->{url} . "/" . $config->{imgs_dir} . $PNG4z . "','','width=" . $picz_width . ",height=" . $picz_height . ",scrollbars=0,resizable=0'))\"><img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG4 . "' border='0'></a>\n");
+			}
+		} else {
+			print("      <img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG4 . "'>\n");
+		}
+	}
+
+	@riglim = @{setup_riglim($rigid[4], $limit[4])};
+	undef(@tmp);
+	undef(@tmpz);
+	undef(@CDEF);
+	push(@tmp, "LINE2:nsob#EEEE44:N struct object");
+	push(@tmp, "GPRINT:nsob:LAST:      Current\\: %5.0lf\\n");
+	push(@tmp, "LINE2:nsoc#44EEEE:N struct objectcore");
+	push(@tmp, "GPRINT:nsoc:LAST:  Current\\: %5.0lf\\n");
+	push(@tmp, "LINE2:nsoh#4444EE:N struct objecthead");
+	push(@tmp, "GPRINT:nsoh:LAST:  Current\\: %5.0lf\\n");
+	push(@tmp, "LINE2:nswl#EE44EE:N struct waitinglist");
+	push(@tmp, "GPRINT:nswl:LAST: Current\\: %5.0lf\\n");
+	push(@tmpz, "LINE2:nsob#EEEE44:N struct object");
+	push(@tmpz, "LINE2:nsoc#44EEEE:N struct objectcore");
+	push(@tmpz, "LINE2:nsoh#4444EE:N struct objecthead");
+	push(@tmpz, "LINE2:nswl#EE44EE:N struct waitinglist");
+	if(lc($config->{show_gaps}) eq "y") {
+		push(@tmp, "AREA:wrongdata#$colors->{gap}:");
+		push(@tmpz, "AREA:wrongdata#$colors->{gap}:");
+		push(@CDEF, "CDEF:wrongdata=allvalues,UN,INF,UNKN,IF");
+	}
+	($width, $height) = split('x', $config->{graph_size}->{small});
+	if($silent =~ /imagetag/) {
+		($width, $height) = split('x', $config->{graph_size}->{remote}) if $silent eq "imagetag";
+		($width, $height) = split('x', $config->{graph_size}->{main}) if $silent eq "imagetagbig";
+		@tmp = @tmpz;
+		push(@tmp, "COMMENT: \\n");
+		push(@tmp, "COMMENT: \\n");
+		push(@tmp, "COMMENT: \\n");
+	}
+	$pic = $rrd{$version}->("$PNG_DIR" . "$PNG5",
+		"--title=$config->{graphs}->{_varnish5}  ($tf->{nwhen}$tf->{twhen})",
+		"--start=-$tf->{nwhen}$tf->{twhen}",
+		"--imgformat=PNG",
+		"--vertical-label=Objects",
+		"--width=$width",
+		"--height=$height",
+		@riglim,
+		$zoom,
+		@{$cgi->{version12}},
+		@{$cgi->{version12_small}},
+		@{$colors->{graph_colors}},
+		"DEF:nsob=$rrd:varn0" . "_nsob:AVERAGE",
+		"DEF:nsoc=$rrd:varn0" . "_nsoc:AVERAGE",
+		"DEF:nsoh=$rrd:varn0" . "_nsoh:AVERAGE",
+		"DEF:nswl=$rrd:varn0" . "_nswl:AVERAGE",
+		"CDEF:allvalues=nsob,nsoc,nsoh,nswl,+,+,+",
+		@CDEF,
+		@tmp);
+	$err = RRDs::error;
+	print("ERROR: while graphing $PNG_DIR" . "$PNG4: $err\n") if $err;
+	if(lc($config->{enable_zoom}) eq "y") {
+		($width, $height) = split('x', $config->{graph_size}->{zoom});
+		$picz = $rrd{$version}->("$PNG_DIR" . "$PNG5z",
+			"--title=$config->{graphs}->{_varnish5}  ($tf->{nwhen}$tf->{twhen})",
+			"--start=-$tf->{nwhen}$tf->{twhen}",
+			"--imgformat=PNG",
+			"--vertical-label=Objects",
+			"--width=$width",
+			"--height=$height",
+			@riglim,
+			$zoom,
+			@{$cgi->{version12}},
+			@{$cgi->{version12_small}},
+			@{$colors->{graph_colors}},
+			"DEF:nsob=$rrd:varn0" . "_nsob:AVERAGE",
+			"DEF:nsoc=$rrd:varn0" . "_nsoc:AVERAGE",
+			"DEF:nsoh=$rrd:varn0" . "_nsoh:AVERAGE",
+			"DEF:nswl=$rrd:varn0" . "_nswl:AVERAGE",
+			"CDEF:allvalues=nsob,nsoc,nsoh,nswl,+,+,+",
+			@CDEF,
+			@tmpz);
+		$err = RRDs::error;
+		print("ERROR: while graphing $PNG_DIR" . "$PNG5z: $err\n") if $err;
+	}
+	if($title || ($silent =~ /imagetag/ && $graph =~ /varnish5/)) {
+		if(lc($config->{enable_zoom}) eq "y") {
+			if(lc($config->{disable_javascript_void}) eq "y") {
+				print("      <a href=\"" . $config->{url} . "/" . $config->{imgs_dir} . $PNG5z . "\"><img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG5 . "' border='0'></a>\n");
+			} else {
+				if($version eq "new") {
+					$picz_width = $picz->{image_width} * $config->{global_zoom};
+					$picz_height = $picz->{image_height} * $config->{global_zoom};
+				} else {
+					$picz_width = $width + 115;
+					$picz_height = $height + 100;
+				}
+				print("      <a href=\"javascript:void(window.open('" . $config->{url} . "/" . $config->{imgs_dir} . $PNG5z . "','','width=" . $picz_width . ",height=" . $picz_height . ",scrollbars=0,resizable=0'))\"><img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG5 . "' border='0'></a>\n");
+			}
+		} else {
+			print("      <img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG5 . "'>\n");
+		}
+	}
+
+	@riglim = @{setup_riglim($rigid[6], $limit[6])};
+	undef(@tmp);
+	undef(@tmpz);
+	undef(@CDEF);
+	push(@tmp, "AREA:hdrb#EE44EE:Header");
+	push(@tmp, "AREA:bodb#963C74:Body");
+	push(@tmp, "AREA:bodb#963C74:");
+	push(@tmp, "AREA:hdrb#EE44EE:");
+	push(@tmp, "LINE1:bodb#963C74");
+	push(@tmp, "LINE1:hdrb#EE00EE");
+	push(@tmpz, "AREA:hdrb#EE44EE:Header");
+	push(@tmpz, "AREA:bodb#963C74:Body");
+	push(@tmpz, "AREA:bodb#963C74:");
+	push(@tmpz, "AREA:hdrb#EE44EE:");
+	push(@tmpz, "LINE1:bodb#963C74");
+	push(@tmpz, "LINE1:hdrb#EE00EE");
+	if(lc($config->{show_gaps}) eq "y") {
+		push(@tmp, "AREA:wrongdata#$colors->{gap}:");
+		push(@tmpz, "AREA:wrongdata#$colors->{gap}:");
+		push(@CDEF, "CDEF:wrongdata=allvalues,UN,INF,UNKN,IF");
+	}
+	($width, $height) = split('x', $config->{graph_size}->{small});
+	if($silent =~ /imagetag/) {
+		($width, $height) = split('x', $config->{graph_size}->{remote}) if $silent eq "imagetag";
+		($width, $height) = split('x', $config->{graph_size}->{main}) if $silent eq "imagetagbig";
+		@tmp = @tmpz;
+		push(@tmp, "COMMENT: \\n");
+		push(@tmp, "COMMENT: \\n");
+		push(@tmp, "COMMENT: \\n");
+	}
+	$pic = $rrd{$version}->("$PNG_DIR" . "$PNG6",
+		"--title=$config->{graphs}->{_varnish6}  ($tf->{nwhen}$tf->{twhen})",
+		"--start=-$tf->{nwhen}$tf->{twhen}",
+		"--imgformat=PNG",
+		"--vertical-label=Bytes/s",
+		"--width=$width",
+		"--height=$height",
+		@riglim,
+		$zoom,
+		@{$cgi->{version12}},
+		@{$cgi->{version12_small}},
+		@{$colors->{graph_colors}},
+		"DEF:hdrb=$rrd:varn0" . "_hdrb:AVERAGE",
+		"DEF:bodb=$rrd:varn0" . "_bodb:AVERAGE",
+		"CDEF:allvalues=hdrb,bodb,+",
+		@CDEF,
+		@tmp);
+	$err = RRDs::error;
+	print("ERROR: while graphing $PNG_DIR" . "$PNG6: $err\n") if $err;
+	if(lc($config->{enable_zoom}) eq "y") {
+		($width, $height) = split('x', $config->{graph_size}->{zoom});
+		$picz = $rrd{$version}->("$PNG_DIR" . "$PNG6z",
+			"--title=$config->{graphs}->{_varnish6}  ($tf->{nwhen}$tf->{twhen})",
+			"--start=-$tf->{nwhen}$tf->{twhen}",
+			"--imgformat=PNG",
+			"--vertical-label=Bytes/s",
+			"--width=$width",
+			"--height=$height",
+			@riglim,
+			$zoom,
+			@{$cgi->{version12}},
+			@{$cgi->{version12_small}},
+			@{$colors->{graph_colors}},
+			"DEF:hdrb=$rrd:varn0" . "_hdrb:AVERAGE",
+			"DEF:bodb=$rrd:varn0" . "_bodb:AVERAGE",
+			"CDEF:allvalues=hdrb,bodb,+",
+			@CDEF,
+			@tmpz);
+		$err = RRDs::error;
+		print("ERROR: while graphing $PNG_DIR" . "$PNG6z: $err\n") if $err;
+	}
+	if($title || ($silent =~ /imagetag/ && $graph =~ /varnish6/)) {
+		if(lc($config->{enable_zoom}) eq "y") {
+			if(lc($config->{disable_javascript_void}) eq "y") {
+				print("      <a href=\"" . $config->{url} . "/" . $config->{imgs_dir} . $PNG6z . "\"><img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG6 . "' border='0'></a>\n");
+			} else {
+				if($version eq "new") {
+					$picz_width = $picz->{image_width} * $config->{global_zoom};
+					$picz_height = $picz->{image_height} * $config->{global_zoom};
+				} else {
+					$picz_width = $width + 115;
+					$picz_height = $height + 100;
+				}
+				print("      <a href=\"javascript:void(window.open('" . $config->{url} . "/" . $config->{imgs_dir} . $PNG6z . "','','width=" . $picz_width . ",height=" . $picz_height . ",scrollbars=0,resizable=0'))\"><img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG6 . "' border='0'></a>\n");
+			}
+		} else {
+			print("      <img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG6 . "'>\n");
+		}
+	}
+
+	if($title) {
+		print("    </td>\n");
+		print("    </tr>\n");
+		main::graph_footer();
+	}
+	print("  <br>\n");
+	return;
+}
+
+1;
diff --git a/monitorix.conf b/monitorix.conf
index 5e02108..9b5aae8 100644
--- a/monitorix.conf
+++ b/monitorix.conf
@@ -92,6 +92,7 @@ secure_log_date_format = %b %e
 	nginx		= n
 	lighttpd	= n
 	mysql		= n
+	varnish		= n
 	squid		= n
 	nfss		= n
 	nfsc		= n
@@ -397,6 +398,14 @@ secure_log_date_format = %b %e
 </mysql>
 
 
+# VARNISH graph
+# -----------------------------------------------------------------------------
+<varnish>
+	rigid = 0, 0, 0, 0, 0, 0
+	limit = 100, 100, 100, 100, 100, 100
+</varnish>
+
+
 # SQUID graph
 # -----------------------------------------------------------------------------
 <squid>
@@ -700,7 +709,7 @@ logo_bottom = logo_bot.png
 	remote	= 300x100
 </graph_size>
 
-graph_name = system, kern, proc, hptemp, lmsens, nvidia, disk, fs, net, netstat, libvirt, process, serv, mail, port, user, ftp, apache, nginx, lighttpd, mysql, squid, nfss, nfsc, bind, ntp, fail2ban, icecast, raspberrypi, phpapc, memcached, apcupsd, wowza, int, verlihub
+graph_name = system, kern, proc, hptemp, lmsens, nvidia, disk, fs, net, netstat, libvirt, process, serv, mail, port, user, ftp, apache, nginx, lighttpd, mysql, varnish, squid, nfss, nfsc, bind, ntp, fail2ban, icecast, raspberrypi, phpapc, memcached, apcupsd, wowza, int, verlihub
 
 <graph_title>
 	system		= System load average and usage
@@ -724,6 +733,7 @@ graph_name = system, kern, proc, hptemp, lmsens, nvidia, disk, fs, net, netstat,
 	nginx		= Nginx statistics
 	lighttpd	= Lighttpd statistics
 	mysql		= MySQL statistics
+	varnish		= Varnish statistics
 	squid		= Squid statistics
 	nfss		= NFS server statistics
 	nfsc		= NFS client statistics
@@ -738,7 +748,6 @@ graph_name = system, kern, proc, hptemp, lmsens, nvidia, disk, fs, net, netstat,
 	wowza		= Wowza Media Server
 	int		= Devices interrupt activity
 	verlihub	= VerliHub statistics
-	
 </graph_title>
 
 <graphs>
@@ -818,6 +827,12 @@ graph_name = system, kern, proc, hptemp, lmsens, nvidia, disk, fs, net, netstat,
 	_mysql4		= MySQL queries
 	_mysql5		= MySQL connections
 	_mysql6		= MySQL traffic
+	_varnish1	= Varnish statistics
+	_varnish2	= Backend usage
+	_varnish3	= Client connections
+	_varnish4	= Cache utilization
+	_varnish5	= Objects
+	_varnish6	= Traffic
 	_squid1		= Squid statistics 1
 	_squid2		= Squid statistics 2
 	_squid3		= Overall I/O