tomcat.conf.erb

LoadPlugin java
<Plugin "java">
  # required JVM argument is the classpath
  JVMARG "-Djava.class.path=/usr/share/collectd/java/collectd-api.jar:/usr/share/collectd/java/generic-jmx.jar"
  LoadPlugin "org.collectd.java.GenericJMX"

  <Plugin "GenericJMX">
    ################
    # MBean blocks #
    ################
    # Number of classes being loaded.
    <MBean "classes">
      ObjectName "java.lang:type=ClassLoading"
      #InstancePrefix ""
      #InstanceFrom ""

      <Value>
        Type "classes"
        InstancePrefix "loaded_classes"
        #InstanceFrom ""
        Table false
        Attribute "LoadedClassCount"
      </Value>
    </MBean>

    # Time spent by the JVM compiling or optimizing.
    <MBean "compilation">
      ObjectName "java.lang:type=Compilation"
      #InstancePrefix ""
      #InstanceFrom ""

      <Value>
        Type "total_time_in_ms"
        InstancePrefix "compilation_time"
        #InstanceFrom ""
        Table false
        Attribute "TotalCompilationTime"
      </Value>
    </MBean>

    # Garbage collector information
    <MBean "garbage_collector">
      ObjectName "java.lang:type=GarbageCollector,*"
      InstancePrefix "gc-"
      InstanceFrom "name"

      <Value>
        Type "invocations"
        #InstancePrefix ""
        #InstanceFrom ""
        Table false
        Attribute "CollectionCount"
      </Value>

      <Value>
        Type "total_time_in_ms"
        InstancePrefix "collection_time"
        #InstanceFrom ""
        Table false
        Attribute "CollectionTime"
      </Value>

#      # Not that useful, therefore commented out.
#      <Value>
#        Type "threads"
#        #InstancePrefix ""
#        #InstanceFrom ""
#        Table false
#        # Demonstration how to access composite types
#        Attribute "LastGcInfo.GcThreadCount"
#      </Value>
    </MBean>

    ######################################
    # Define the "jmx_memory" type as:   #
    #   jmx_memory  value:GAUGE:0:U      #
    # See types.db(5) for details.       #
    ######################################

    # Generic heap/nonheap memory usage.
    <MBean "memory">
      ObjectName "java.lang:type=Memory"
      #InstanceFrom ""
      InstancePrefix "memory"

      # Creates four values: committed, init, max, used
      <Value>
        Type "jmx_memory"
        #InstancePrefix ""
        #InstanceFrom ""
        Table true
        Attribute "HeapMemoryUsage"
        InstancePrefix "heap-"
      </Value>

      # Creates four values: committed, init, max, used
      <Value>
        Type "jmx_memory"
        #InstancePrefix ""
        #InstanceFrom ""
        Table true
        Attribute "NonHeapMemoryUsage"
        InstancePrefix "nonheap-"
      </Value>
    </MBean>

    # Memory usage by memory pool.
    <MBean "memory_pool">
      ObjectName "java.lang:type=MemoryPool,*"
      InstancePrefix "memory_pool-"
      InstanceFrom "name"

      <Value>
        Type "jmx_memory"
        #InstancePrefix ""
        #InstanceFrom ""
        Table true
        Attribute "Usage"
      </Value>
    </MBean>

    ### MBeans by Catalina / Tomcat ###
    # The global request processor (summary for each request processor)
    <MBean "catalina/global_request_processor">
      ObjectName "Catalina:type=GlobalRequestProcessor,*"
      InstancePrefix "request_processor-"
      InstanceFrom "name"

      <Value>
        Type "io_octets"
        InstancePrefix "global"
        #InstanceFrom ""
        Table false
        Attribute "bytesReceived"
        Attribute "bytesSent"
      </Value>

      <Value>
        Type "total_requests"
        InstancePrefix "global"
        #InstanceFrom ""
        Table false
        Attribute "requestCount"
      </Value>

      <Value>
        Type "total_time_in_ms"
        InstancePrefix "global-processing"
        #InstanceFrom ""
        Table false
        Attribute "processingTime"
      </Value>
    </MBean>

    # Details for each  request processor
    <MBean "catalina/detailed_request_processor">
      ObjectName "Catalina:type=RequestProcessor,*"
      InstancePrefix "request_processor-"
      InstanceFrom "worker"

      <Value>
        Type "io_octets"
        #InstancePrefix ""
        InstanceFrom "name"
        Table false
        Attribute "bytesReceived"
        Attribute "bytesSent"
      </Value>

      <Value>
        Type "total_requests"
        #InstancePrefix ""
        InstanceFrom "name"
        Table false
        Attribute "requestCount"
      </Value>

      <Value>
        Type "total_time_in_ms"
        InstancePrefix "processing-"
        InstanceFrom "name"
        Table false
        Attribute "processingTime"
      </Value>
    </MBean>

    # Thread pool
    <MBean "catalina/thread_pool">
      ObjectName "Catalina:type=ThreadPool,*"
      InstancePrefix "thread_pool-"
      InstanceFrom "name"

      <Value>
        Type "threads"
        InstancePrefix "total"
        #InstanceFrom ""
        Table false
        Attribute "currentThreadCount"
      </Value>

      <Value>
        Type "threads"
        InstancePrefix "running"
        #InstanceFrom ""
        Table false
        Attribute "currentThreadsBusy"
      </Value>
    </MBean>

    #####################
    # Connection blocks #
    #####################
    <Connection>
      ServiceURL "service:jmx:rmi:///jndi/rmi://localhost:<%= @options[:port] %>/jmxrmi"
      Host "localhost"
      Collect "classes"
      Collect "compilation"
      Collect "garbage_collector"
      Collect "memory"
      Collect "memory_pool"
      Collect "catalina/global_request_processor"
      Collect "catalina/thread_pool"
    </Connection>
  </Plugin>
</Plugin>

tomcat.rb

include_recipe 'zs-collectd::default'

# Ref https://github.com/collectd/collectd/blob/master/contrib/GenericJMX.conf
file "/usr/share/collectd/types.db.tomcat" do
  owner "root"
  group "root"
  mode 0644
  content "jmx_memory  value:GAUGE:0:U\nclasses value:GAUGE:0:U\n"
  notifies :run, 'execute[build-types.db.combined]', :delayed
end

collectd_plugin 'tomcat' do
  options \
    :port   => node[:collectd][:tomcat][:jmx_port]
  template "tomcat.conf.erb"
  cookbook "zs-collectd"
end