[431] | 1 | #!/usr/bin/perl |
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| 2 | # |
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| 3 | # Plugin to monitor connections per second, for LVS loadbalancers. |
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| 4 | # |
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| 5 | # Magic name: |
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| 6 | # |
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| 7 | # cps_<port> |
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| 8 | # cps_<vip>_<port> |
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| 9 | # |
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| 10 | # Examples: |
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| 11 | # |
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| 12 | # cps_smtp |
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| 13 | # cps_mail.foo.boo_smtp |
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| 14 | # cps_pop3 |
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| 15 | # cps_www.foo.boo_www |
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| 16 | # cps_vvv.foo.boo_www |
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| 17 | # |
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| 18 | # Parameters understood: |
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| 19 | # |
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| 20 | # config (required) |
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| 21 | # autoconf (optional - used by munin-config) |
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| 22 | # suggest (optional - used by munin-config) |
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| 23 | # |
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| 24 | # $Log$ |
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| 25 | # Revision 1.8 2004/12/10 18:55:14 jimmyo |
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| 26 | # Removed hardcoded host_name in linux/cps_. |
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| 27 | # |
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| 28 | # Revision 1.7 2004/12/10 18:51:44 jimmyo |
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| 29 | # linux/apt* has been forced to LANG=C, to get predictable output. |
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| 30 | # |
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| 31 | # Revision 1.6 2004/12/10 11:48:42 jimmyo |
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| 32 | # linux/cps_ plugin now groks high numbers. |
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| 33 | # |
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| 34 | # Revision 1.5 2004/12/10 10:47:49 jimmyo |
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| 35 | # Change name from ${scale} to ${graph_period}, to be more consistent. |
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| 36 | # |
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| 37 | # Revision 1.4 2004/12/09 22:12:56 jimmyo |
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| 38 | # Added "graph_period" option, to make "graph_sums" usable. |
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| 39 | # |
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| 40 | # Revision 1.3 2004/11/21 00:16:57 jimmyo |
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| 41 | # Changed a lot of plugins so they use DERIVE instead of COUNTER. |
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| 42 | # |
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| 43 | # Revision 1.2 2004/05/20 19:02:37 jimmyo |
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| 44 | # Set categories on a bunch of plugins |
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| 45 | # |
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| 46 | # Revision 1.1 2004/01/02 18:50:01 jimmyo |
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| 47 | # Renamed occurrances of lrrd -> munin |
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| 48 | # |
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| 49 | # Revision 1.1.1.1 2004/01/02 15:18:07 jimmyo |
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| 50 | # Import of LRRD CVS tree after renaming to Munin |
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| 51 | # |
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| 52 | # Revision 1.4 2003/11/07 17:43:16 jimmyo |
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| 53 | # Cleanups and log entries |
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| 54 | # |
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| 55 | # |
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| 56 | # |
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| 57 | # Magic markers - optional - used by installation scripts and munin-config: |
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| 58 | # |
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| 59 | #%# family=manual |
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| 60 | #%# capabilities=autoconf suggest |
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| 61 | # |
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| 62 | |
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| 63 | use strict; |
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| 64 | |
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| 65 | if ( defined $ARGV[0] and $ARGV[0] eq "autoconf" ) |
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| 66 | { |
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| 67 | &autoconf (); |
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| 68 | } |
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| 69 | if ( defined $ARGV[0] and $ARGV[0] eq "suggest" ) |
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| 70 | { |
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| 71 | my $sipvs; |
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| 72 | $sipvs = &ipvs (".", ".", $sipvs); |
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| 73 | exit 0 if $sipvs == undef; |
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| 74 | &suggest ($sipvs); |
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| 75 | } |
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| 76 | |
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| 77 | unless ($0 =~ /cps(?:_([^_]+)|)_(.+)\s*$/) |
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| 78 | { |
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| 79 | die "Could not parse name $0.\n"; |
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| 80 | } |
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| 81 | my $vip = $1; |
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| 82 | my $port = $2; |
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| 83 | my $ipvs; |
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| 84 | |
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| 85 | #print "Name: $0\nPort: $port\nVip : $vip\n"; |
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| 86 | |
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| 87 | # Read ipvsadm-output |
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| 88 | |
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| 89 | $ipvs = &ipvs ($vip, $port, $ipvs); |
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| 90 | |
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| 91 | if ( defined $ARGV[0] and $ARGV[0] eq "dump" ) |
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| 92 | { |
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| 93 | use Data::Dumper; |
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| 94 | print Dumper($ipvs); |
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| 95 | } |
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| 96 | |
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| 97 | if ( defined $ARGV[0] and $ARGV[0] eq "config" ) |
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| 98 | { |
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| 99 | &config ($vip, $port, $ipvs); |
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| 100 | } |
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| 101 | |
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| 102 | $vip = $vip || ""; |
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| 103 | if (exists ($ipvs->{$vip}) and exists ($ipvs->{$vip}->{$port})) |
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| 104 | { |
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| 105 | foreach my $host (sort keys %{$ipvs->{$vip}->{$port}}) |
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| 106 | { |
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| 107 | (my $fname = $host) =~ s/[.-]/_/g; |
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| 108 | print "$fname.value ", $ipvs->{$vip}->{$port}->{$host}, "\n";; |
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| 109 | } |
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| 110 | } |
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| 111 | else |
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| 112 | { |
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| 113 | foreach my $vip (sort keys %{$ipvs}) |
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| 114 | { |
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| 115 | foreach my $host (sort keys %{$ipvs->{$vip}->{$port}}) |
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| 116 | { |
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| 117 | (my $fname = ($vip . "-" . $host)) =~ s/[.-]/_/g; |
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| 118 | print "$fname.value ", $ipvs->{$vip}->{$port}->{$host}, "\n";; |
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| 119 | } |
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| 120 | } |
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| 121 | } |
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| 122 | |
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| 123 | sub autoconf |
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| 124 | { |
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| 125 | system ("/sbin/ipvsadm -L --stats >/dev/null 2>/dev/null"); |
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| 126 | |
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| 127 | if ($? == 0) |
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| 128 | { |
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| 129 | print "yes\n"; |
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| 130 | exit 0; |
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| 131 | } |
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| 132 | elsif (($?>>8) == 2) |
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| 133 | { |
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| 134 | print "no (permission denied)\n"; |
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| 135 | exit 1; |
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| 136 | } |
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| 137 | elsif ($? == 127) |
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| 138 | { |
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| 139 | print "no (ipvsadm not found)\n"; |
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| 140 | exit 1; |
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| 141 | } |
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| 142 | else |
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| 143 | { |
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| 144 | print "no\n"; |
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| 145 | exit 1; |
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| 146 | } |
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| 147 | } |
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| 148 | sub suggest |
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| 149 | { |
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| 150 | my $ipvs = shift; |
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| 151 | exit 0 unless $ipvs; |
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| 152 | |
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| 153 | foreach my $vip (sort keys %{$ipvs}) |
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| 154 | { |
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| 155 | foreach my $port (sort keys %{$ipvs->{$vip}}) |
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| 156 | { |
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| 157 | print "cps_${vip}_$port\n"; |
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| 158 | } |
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| 159 | } |
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| 160 | exit 0; |
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| 161 | } |
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| 162 | |
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| 163 | sub config |
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| 164 | { |
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| 165 | my $vip = shift; |
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| 166 | my $port = shift; |
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| 167 | my $ipvs = shift; |
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| 168 | |
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| 169 | print "graph_title Loadbalanced ",($vip?$vip:"*"),"->",$port," connections\n"; |
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| 170 | print "graph_args -l 0\n"; |
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| 171 | print "graph_total total\n"; |
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| 172 | print "graph_vlabel connections / \${graph_period}\n"; |
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| 173 | print "graph_category network\n"; |
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| 174 | my $first=1; |
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| 175 | $vip = $vip || ""; |
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| 176 | if (exists ($ipvs->{$vip}) and exists ($ipvs->{$vip}->{$port})) |
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| 177 | { |
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| 178 | foreach my $host (sort keys %{$ipvs->{$vip}->{$port}}) |
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| 179 | { |
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| 180 | (my $fname = $host) =~ s/[.-]/_/g; |
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| 181 | if ( $first == 1 ) |
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| 182 | { |
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| 183 | print "$fname.draw AREA\n"; |
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| 184 | $first=0 |
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| 185 | } |
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| 186 | else |
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| 187 | { |
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| 188 | print "$fname.draw STACK\n"; |
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| 189 | } |
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| 190 | print "$fname.type DERIVE\n"; |
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| 191 | $host =~ s/-bak//; |
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| 192 | print "$fname.label $host\n"; |
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| 193 | print "$fname.max 1000\n"; |
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| 194 | print "$fname.min 0\n"; |
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| 195 | } |
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| 196 | } |
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| 197 | else |
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| 198 | { |
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| 199 | foreach my $vip (reverse sort keys %{$ipvs}) |
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| 200 | { |
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| 201 | foreach my $host (sort keys %{$ipvs->{$vip}->{$port}}) |
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| 202 | { |
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| 203 | (my $fname = ($vip . "-" . $host)) =~ s/[.-]/_/g; |
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| 204 | if ( $first == 1 ) |
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| 205 | { |
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| 206 | print "$fname.draw AREA\n"; |
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| 207 | $first=0 |
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| 208 | } |
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| 209 | else |
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| 210 | { |
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| 211 | print "$fname.draw STACK\n"; |
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| 212 | } |
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| 213 | print "$fname.type DERIVE\n"; |
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| 214 | $host =~ s/-bak//; |
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| 215 | my $label = "$vip -> $host"; |
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| 216 | $label =~ s/\.MIT\.EDU//g; |
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| 217 | print "$fname.label $label\n"; |
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| 218 | print "$fname.max 1000\n"; |
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| 219 | print "$fname.min 0\n"; |
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| 220 | } |
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| 221 | } |
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| 222 | } |
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| 223 | exit 0; |
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| 224 | } |
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| 225 | |
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| 226 | sub ipvs |
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| 227 | { |
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| 228 | my $vip = shift; |
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| 229 | my $port = shift; |
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| 230 | my $ipvs = shift; |
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| 231 | open (IPVS, "/sbin/ipvsadm -L --stats 2>/dev/null|") or return undef; |
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| 232 | my $cvip = ""; |
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| 233 | my $cport = ""; |
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| 234 | while (<IPVS>) |
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| 235 | { |
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| 236 | next if /^IP Virtual Server/; |
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| 237 | next if /^Prot\s+LocalAddress/; |
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| 238 | if (/^(\w+)\s+([\w\.-]+):([\w\d]+)\s+(\d+)[KMG]?\s+/) |
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| 239 | { |
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| 240 | $cvip = $2; |
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| 241 | $cport = $3; |
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| 242 | } |
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| 243 | elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)G\s+/) |
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| 244 | { |
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| 245 | $ipvs->{$cvip}->{$cport}->{$1} += ($3*1000000000); |
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| 246 | } |
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| 247 | elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)M\s+/) |
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| 248 | { |
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| 249 | $ipvs->{$cvip}->{$cport}->{$1} += ($3*1000000); |
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| 250 | } |
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| 251 | elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)K\s+/) |
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| 252 | { |
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| 253 | $ipvs->{$cvip}->{$cport}->{$1} += ($3*1000); |
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| 254 | } |
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| 255 | elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)\s+/) |
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| 256 | { |
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| 257 | $ipvs->{$cvip}->{$cport}->{$1} += $3; |
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| 258 | } |
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| 259 | } |
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| 260 | close (IPVS) or return undef; |
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| 261 | return $ipvs; |
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| 262 | } |
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| 263 | # vim:syntax=perl |
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