/usr/share/munin/plugins/tomcat_ is in munin-node 1.4.6-3ubuntu3.4.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 | #!/usr/bin/env ruby
@dummyvar = <<-'=cut'
=head1 NAME
tomcat_ - Munin plugin to monitor tomcat servers.
=head1 APPLICABLE SYSTEMS
Tomcat 5.0 or higher with the default tomcat manager webapp.
=head1 USAGE
Needs access to http://<user>:<password>@localhost:8080/manager/status?XML=true (or modify the address for another host).
A munin-user in $CATALINA_HOME/conf/tomcat-users.xml should be set up for this to work.
Tip: To see if it's already set up correctly, just run this plugin with the parameter "autoconf". If you get a "yes", everything should work like a charm already.
tomcat-users.xml example:
<user username="munin" password="<set this>"
roles="standard,manager"/>
=head1 CONFIGURATION
The following environment variables are used by this plugin:
=over 4
=item host
Destination host
=item port
Connector post number (legacy parameter, use connector instead)
=item timeout
Connection timeout
=item request
Override default status-url
=item user
Manager username
=item password
Manager password
=item connector
Connector to query, defaults to "http-".$port
=back
=head2 CONFIGURATION EXAMPLE
[tomcat_*]
env.host 127.0.0.1
env.port 8080
env.request /manager/status?XML=true
env.user munin
env.password pass
env.timeout 30
env.connector jk-8009
=head1 AUTHORS
Based on plugins by Rune Nordboe Skillingstad <runesk@linpro.no>
Rewrite and expansion in ruby: laxis <laxis@magex.hu> 2008.05
Converted to rexml and integrated as default tomcat plugin
by Erik Inge Bolsoe <knan@redpill-linpro.com> 2009.09
=head1 MAGIC MARKERS
#%# family=auto
#%# capabilities=autoconf suggest
=cut
require 'net/http'
require 'rexml/document'
@host = ENV.member?('host') ? ENV['host']: "127.0.0.1"
@port = ENV.member?('port') ? ENV['port']: 8080
@request = ENV.member?('request') ? ENV['request']: "/manager/status?XML=true"
@user = ENV.member?('user') ? ENV['user']: "munin"
@password = ENV.member?('password') ? ENV['password']: "munin"
@timeout = ENV.member?('timeout') ? ENV['timeout']: 30
@connector = ENV.member?('connector') ? ENV['connector']: "http-#{@port}";
# hash
w = {
"jvm" => { "max" => "U",
"free" => "U",
"used" => "U" },
"threads" => { "busy" => "U",
"idle" => "U",
"max" => "U" },
"maxtime" => { "maxtime" => "U" },
"avgtime" => { "avgtime" => "U" },
"access" => { "accesses" => "U",
"errors" => "U" },
"volume" => { "volume" => "U",
"volumein" => "U" }
}
# http request
def getstat()
Net::HTTP.start(@host, @port) do |http|
http.open_timeout = @timeout
req = Net::HTTP::Get.new(@request)
req.basic_auth @user, @password
response = http.request(req)
response.value()
return response.body
end rescue begin
return false
end
end
def autoconf()
begin
if getstat()
puts "yes"
return 0
else
puts "no"
return 1
end
rescue
puts "no (#{$!})"
return 1
end
end
if ARGV[0] == "autoconf"
autoconf()
exit 0
end
if ARGV[0] == "suggest"
exit 1 if !getstat()
w.each { |k, v|
print "#{k}\n"
}
exit
end
# open stderr
e = IO.new(2, "w")
mode = $0.gsub /.*\/tomcat_/, ""
if mode =~ /tomcat/ then
e.puts "Invalid mode"
exit 1
end
# munin config request
if ARGV[0] == "config"
case mode
when "jvm"
puts "graph_title Tomcat JVM memory"
puts "graph_category tomcat"
puts "graph_args --base 1024 -l 0"
puts "graph_vlabel Bytes"
puts "graph_order free used max"
puts "free.label free bytes";
puts "free.draw AREA";
puts "used.label used bytes";
puts "used.draw STACK";
puts "max.label maximum bytes";
puts "max.draw LINE2";
when "access"
puts "graph_title Tomcat accesses"
puts "graph_category tomcat"
puts "graph_args --base 1000"
puts "graph_order accesses errors"
puts "graph_vlabel accesses / ${graph_period}"
w[mode].each { |k, v|
puts "#{k}.label #{k}"
puts "#{k}.type DERIVE"
puts "#{k}.min 0"
puts "#{k}.draw AREA" if k == "accesses"
puts "#{k}.draw LINE2" if k != "accesses"
}
when "volume"
puts "graph_title Tomcat volume"
puts "graph_category tomcat"
puts "graph_args --base 1000"
puts "graph_vlabel bytes in (-) / out (+) per ${graph_period}"
puts "graph_order volumein volume"
puts "volume.label bytes"
puts "volume.type DERIVE"
puts "volume.min 0"
puts "volume.max 1000000000"
puts "volume.negative volumein"
puts "volumein.label bytes"
puts "volumein.type DERIVE"
puts "volumein.min 0"
puts "volumein.max 1000000000"
puts "volumein.graph no"
when "maxtime"
puts "graph_title Tomcat max processing time for a request"
puts "graph_category tomcat"
puts "graph_args --base 1000 -l 0"
puts "graph_vlabel ms"
w[mode].each { |k, v|
puts "#{k}.label #{k}"
puts "#{k}.min 0"
puts "#{k}.draw LINE2"
}
when "avgtime"
puts "graph_title Tomcat average processing time / request"
puts "graph_category tomcat"
puts "graph_args --base 1000 -l 0"
puts "graph_vlabel ms / request (avg)"
w[mode].each { |k, v|
puts "#{k}.label #{k}"
puts "#{k}.min 0"
puts "#{k}.draw LINE2"
}
when "threads"
puts "graph_title Tomcat threads"
puts "graph_category tomcat"
puts "graph_args --base 1000 -l 0"
puts "graph_vlabel threads"
puts "graph_order busy idle max"
puts "busy.label busy threads"
puts "busy.draw AREA"
puts "idle.label idle threads"
puts "idle.draw STACK"
puts "max.label max threads"
puts "max.draw LINE2"
end
exit 0
end
# XML parsolasa
begin
doc = REXML::Document.new(getstat())
end rescue begin
e.puts "Parse error"
exit 1
end
# root element kivalasztasa
root = doc.root
if root.name != "status"
e.puts "Invalid XML"
exit 1
end
# copy jvm memory datas to hash
node = REXML::XPath.first(doc, '//status/jvm/memory')
w["jvm"]["max"] = node.attributes["max"]
w["jvm"]["used"] = node.attributes["total"].to_i - node.attributes["free"].to_i
w["jvm"]["free"] = node.attributes["free"]
# copy connector datas to hash
node = REXML::XPath.first(doc, "//status/connector[@name='" + @connector + "']/threadInfo")
if node
w["threads"]["max"] = node.attributes["maxThreads"]
w["threads"]["idle"] = node.attributes["currentThreadCount"].to_i - node.attributes["currentThreadsBusy"].to_i
w["threads"]["busy"] = node.attributes["currentThreadsBusy"]
end
node = REXML::XPath.first(doc, "//status/connector[@name='" + @connector + "']/requestInfo")
if node
w["maxtime"]["maxtime"] = node.attributes["maxTime"]
w["avgtime"]["avgtime"] = sprintf "%.2f", (node.attributes["processingTime"].to_f / node.attributes["requestCount"].to_f / 1000)
w["access"]["accesses"] = node.attributes["requestCount"]
w["access"]["errors"] = node.attributes["errorCount"]
w["volume"]["volumein"] = node.attributes["bytesReceived"]
w["volume"]["volume"] = node.attributes["bytesSent"]
end
# print result
w[mode].each do |k, v|
printf "#{k}.value %s\n", v
end
# XML Output:
#<?xml version="1.0" encoding="utf-8"?>
#<?xml-stylesheet type="text/xsl" href="/manager/xform.xsl" ?>
#<status>
# <jvm>
# <memory free='110552760' total='257425408' max='1034027008'/>
# </jvm>
# <connector name='http-8080'>
# <threadInfo maxThreads="40" currentThreadCount="1" currentThreadsBusy="1" />
# <requestInfo maxTime="14" processingTime="2619" requestCount="1911" errorCount="5" bytesReceived="0" bytesSent="3294996" />
# <workers>
# <worker stage="S" requestProcessingTime="0" requestBytesSent="0" requestBytesReceived="0" remoteAddr="127.0.0.1" virtualHost="localhost" method="GET" currentUri="/manager/status" currentQueryString="XML=true" protocol="HTTP/1.0" />
# </workers>
# </connector>
# <connector name='jk-8009'>
# <threadInfo maxThreads="200" currentThreadCount="8" currentThreadsBusy="6" />
# <requestInfo maxTime="36961" processingTime="273750" requestCount="5485" errorCount="43" bytesReceived="0" bytesSent="57138822" />
# <workers>
# <worker stage="K" requestProcessingTime="22683456" requestBytesSent="0" requestBytesReceived="0" remoteAddr="86.101.240.226" virtualHost="?" method="?" currentUri="?" currentQueryString="?" protocol="?" />
# <worker stage="K" requestProcessingTime="35807" requestBytesSent="0" requestBytesReceived="0" remoteAddr="217.20.130.27" virtualHost="?" method="?" currentUri="?" currentQueryString="?" protocol="?" />
# <worker stage="K" requestProcessingTime="32247045" requestBytesSent="0" requestBytesReceived="0" remoteAddr="89.147.76.234" virtualHost="?" method="?" currentUri="?" currentQueryString="?" protocol="?" />
# <worker stage="K" requestProcessingTime="95860" requestBytesSent="0" requestBytesReceived="0" remoteAddr="217.20.130.27" virtualHost="?" method="?" currentUri="?" currentQueryString="?" protocol="?" />
# <worker stage="K" requestProcessingTime="155940" requestBytesSent="0" requestBytesReceived="0" remoteAddr="217.20.130.27" virtualHost="?" method="?" currentUri="?" currentQueryString="?" protocol="?" />
# </workers>
# </connector>
#</status>
|