mirror of
https://github.com/munin-monitoring/contrib.git
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121 lines
2.6 KiB
Perl
Executable File
121 lines
2.6 KiB
Perl
Executable File
#!/usr/bin/perl
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# -*- perl -*-
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# Author Rodolphe Quiédeville <rodolphe@quiedeville.org>
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# Licence : GPLv2
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# Code based on tomcat_volume plugin by
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# Rune Nordbøe Skillingstad <runesk@linpro.no>
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=head1 NAME
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geowebcache_volume - Plugin to monitor the cache hit ratio of GeoWebCache
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servers.
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version 1.0.1
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=head1 CONFIGURATION
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The following environment variables are used by this plugin
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=over 4
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=item timeout
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Connection timeout
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=item url
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Override default status-url
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=item ports
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HTTP port numbers
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=back
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=head2 CONFIGURATION EXAMPLE
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[geowebcache_ratio]
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env.url localhost:%d/geoserver/gwc
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env.ports 8081
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=head1 AUTHOR
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Rodolphe Quiédeville <rodolphe@quiedeville.org>
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=head1 USAGE
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Needs access to
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http://localhost:8080/gwc (or modify the address for another host).
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If geowebcache is used inside GeoServer the url will be
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http://localhost:8080/geoserver/gwc
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GeoWebCache 1.2 or higher.
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Tip: To see if it's already set up correctly, just run this plugin
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with the parameter "autoconf". If you get a "yes", everything should
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work like a charm already.
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=head1 MAGIC MARKERS
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#%# family=contrib
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#%# capabilities=autoconf
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=cut
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use strict;
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my $ret = undef;
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if(!eval "require LWP::UserAgent;") {
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$ret = "LWP::UserAgent not found";
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}
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my $URL = exists $ENV{'url'} ? $ENV{'url'} : "http://127.0.0.1:%d/geowebcache/home";
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my $PORT = exists $ENV{'ports'} ? $ENV{'ports'} : 8080;
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my $TIMEOUT = exists $ENV{'timeout'} ? $ENV{'timeout'} : 30;
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my $url = sprintf $URL, $PORT;
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if(exists $ARGV[0] and $ARGV[0] eq "autoconf") {
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if($ret) {
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print "no ($ret)\n";
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exit 0;
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}
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my $au = LWP::UserAgent->new(timeout => $TIMEOUT);
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my $response = $au->request(HTTP::Request->new('GET',$url));
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if($response->is_success and $response->content =~ /GWC Home/im) {
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print "yes\n";
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exit 0;
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} else {
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print "no geowebcache found\n";
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exit 0;
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}
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}
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if(exists $ARGV[0] and $ARGV[0] eq "config") {
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print "graph_title GeoWebCache cache hit ratio\n";
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print "graph_args --base 1000\n";
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print "graph_vlabel %\n";
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print "graph_category loadbalancer\n";
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print "ratio.label percent\n";
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print "ratio.type GAUGE\n";
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print "ratio.max 100\n";
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print "ratio.min 0\n";
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print "ratio.draw AREA\n";
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print "ratio.colour FFCC00\n";
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exit 0;
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}
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my $ua = LWP::UserAgent->new(timeout => $TIMEOUT);
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my $response = $ua->request(HTTP::Request->new('GET',$url));
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if ($response->content =~ '<tr><td colspan="5"> </td></tr><tr><td colspan="2">Cache hit ratio:</td><td colspan="3">(\d\d?\.?\d+)% of requests</td></tr>' ) {
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print "ratio.value " . $1;
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} else {
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print "ratio.value U\n";
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}
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# vim:syntax=perl
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