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|
#!@@PERL@@
#
# Plugin to monitor connections per second, for LVS loadbalancers.
#
# Magic name:
#
# cps_<port>
# cps_<vip>_<port>
#
# Examples:
#
# cps_smtp
# cps_mail.foo.boo_smtp
# cps_pop3
# cps_www.foo.boo_www
# cps_vvv.foo.boo_www
#
# Parameters understood:
#
# config (required)
# autoconf (optional - used by munin-config)
# suggest (optional - used by munin-config)
#
# $Log$
# Revision 1.8 2004/12/10 18:55:14 jimmyo
# Removed hardcoded host_name in linux/cps_.
#
# Revision 1.7 2004/12/10 18:51:44 jimmyo
# linux/apt* has been forced to LANG=C, to get predictable output.
#
# Revision 1.6 2004/12/10 11:48:42 jimmyo
# linux/cps_ plugin now groks high numbers.
#
# Revision 1.5 2004/12/10 10:47:49 jimmyo
# Change name from ${scale} to ${graph_period}, to be more consistent.
#
# Revision 1.4 2004/12/09 22:12:56 jimmyo
# Added "graph_period" option, to make "graph_sums" usable.
#
# Revision 1.3 2004/11/21 00:16:57 jimmyo
# Changed a lot of plugins so they use DERIVE instead of COUNTER.
#
# Revision 1.2 2004/05/20 19:02:37 jimmyo
# Set categories on a bunch of plugins
#
# Revision 1.1 2004/01/02 18:50:01 jimmyo
# Renamed occurrances of lrrd -> munin
#
# Revision 1.1.1.1 2004/01/02 15:18:07 jimmyo
# Import of LRRD CVS tree after renaming to Munin
#
# Revision 1.4 2003/11/07 17:43:16 jimmyo
# Cleanups and log entries
#
#
#
# Magic markers - optional - used by installation scripts and munin-config:
#
#%# family=manual
#%# capabilities=autoconf suggest
#
use strict;
if ( defined $ARGV[0] and $ARGV[0] eq "autoconf" )
{
&autoconf ();
}
if ( defined $ARGV[0] and $ARGV[0] eq "suggest" )
{
my $sipvs;
$sipvs = &ipvs (".", ".", $sipvs);
exit 0 if $sipvs == undef;
&suggest ($sipvs);
}
unless ($0 =~ /cps(?:_([^_]+)|)_(.+)\s*$/)
{
die "Could not parse name $0.\n";
}
my $vip = $1;
my $port = $2;
my $ipvs;
#print "Name: $0\nPort: $port\nVip : $vip\n";
# Read ipvsadm-output
$ipvs = &ipvs ($vip, $port, $ipvs);
if ( defined $ARGV[0] and $ARGV[0] eq "config" )
{
&config ($vip, $port, $ipvs);
}
$vip = $vip || "";
if (exists ($ipvs->{$vip}) and exists ($ipvs->{$vip}->{$port}))
{
foreach my $host (sort keys %{$ipvs->{$vip}->{$port}})
{
(my $fname = $host) =~ s/[.-]/_/g;
print "$fname.value ", $ipvs->{$vip}->{$port}->{$host}, "\n";;
}
}
sub autoconf
{
system ("/sbin/ipvsadm -L --stats >/dev/null 2>/dev/null");
if ($? == 0)
{
print "yes\n";
exit 0;
}
elsif (($?>>8) == 2)
{
print "no (permission denied)\n";
exit 1;
}
elsif ($? == 127)
{
print "no (ipvsadm not found)\n";
exit 1;
}
else
{
print "no\n";
exit 1;
}
}
sub suggest
{
my $ipvs = shift;
exit 0 unless $ipvs;
foreach my $vip (sort keys %{$ipvs})
{
foreach my $port (sort keys %{$ipvs->{$vip}})
{
print "cps_${vip}_$port\n";
}
}
exit 0;
}
sub config
{
my $vip = shift;
my $port = shift;
my $ipvs = shift;
print "graph_title Loadbalanced ",($vip?$vip:"*"),"->",$port," connections\n";
print "graph_args -l 0\n";
print "graph_total total\n";
print "graph_vlabel connections / \${graph_period}\n";
print "graph_category network\n";
my $first=1;
$vip = $vip || "";
if (exists ($ipvs->{$vip}) and exists ($ipvs->{$vip}->{$port}))
{
foreach my $host (sort keys %{$ipvs->{$vip}->{$port}})
{
(my $fname = $host) =~ s/[.-]/_/g;
if ( $first == 1 )
{
print "$fname.draw AREA\n";
$first=0
}
else
{
print "$fname.draw STACK\n";
}
print "$fname.type DERIVE\n";
$host =~ s/-bak//;
print "$fname.label $host\n";
print "$fname.max 1000\n";
print "$fname.min 0\n";
}
}
exit 0;
}
sub ipvs
{
my $vip = shift;
my $port = shift;
my $ipvs = shift;
open (IPVS, "/sbin/ipvsadm -L --stats 2>/dev/null|") or return undef;
my $cvip = "";
my $cport = "";
while (<IPVS>)
{
next if /^IP Virtual Server/;
next if /^Prot\s+LocalAddress/;
if (/^(\w+)\s+([\w\.-]+):([\w\d]+)\s+(\d+)[KMG]?\s+/)
{
$cvip = ($vip?$2:"");
$cport = $3;
}
elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)G\s+/)
{
$ipvs->{$cvip}->{$cport}->{$1} += ($3*1000000000);
}
elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)M\s+/)
{
$ipvs->{$cvip}->{$cport}->{$1} += ($3*1000000);
}
elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)K\s+/)
{
$ipvs->{$cvip}->{$cport}->{$1} += ($3*1000);
}
elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)\s+/)
{
$ipvs->{$cvip}->{$cport}->{$1} += $3;
}
}
close (IPVS) or return undef;
return $ipvs;
}
# vim:syntax=perl
|
