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 $ipvs = shift; |
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168 | |
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169 | print "graph_title ", ($ENV{"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 (/^FWM\s+([\d]+)\s/) |
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244 | { |
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245 | $cvip = $1; |
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246 | $cport = 0; |
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247 | } |
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248 | elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)G\s+/) |
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249 | { |
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250 | $ipvs->{$cvip}->{$cport}->{$1} += ($3*1000000000); |
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251 | } |
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252 | elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)M\s+/) |
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253 | { |
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254 | $ipvs->{$cvip}->{$cport}->{$1} += ($3*1000000); |
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255 | } |
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256 | elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)K\s+/) |
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257 | { |
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258 | $ipvs->{$cvip}->{$cport}->{$1} += ($3*1000); |
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259 | } |
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260 | elsif (/^\s+->\s+([^:]+):(\S+)\s+(\d+)\s+/) |
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261 | { |
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262 | $ipvs->{$cvip}->{$cport}->{$1} += $3; |
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263 | } |
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264 | } |
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265 | close (IPVS) or return undef; |
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266 | return $ipvs; |
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267 | } |
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268 | # vim:syntax=perl |
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