anchor.diff:                          Attribute "LoadedClassCount"
                   </Value>
           </MBean>
  -
           #WT Hadoop Data Node Metrics
           <MBean "data_node">
                   ObjectName "Hadoop:service=DataNode,name=DataNode"
  
positive.code:                 Collect "garbage_collector"
                  Collect "data_node"
          </Connection>
          </Plugin>
  </Plugin>
  
negative.code:                         Attribute "blocks_written"
                  </Value>
          </MBean>
          #WT Hadoop TaskTracker Metrics
          <MBean "task_tracker">
                  ObjectName "Hadoop:service=TaskTracker,name=TaskTrackerMetrics"
                  #InstancePrefix ""
                  InstanceFrom "name"
                  <Value>
                          Type "gauge"
                          InstancePrefix "maps_running"
                          Attribute "maps_running"
                  </Value>
                  <Value>
                          Type "gauge"
                          InstancePrefix "reduces_running"
                          Attribute "reduces_running"
                  </Value>
                  <Value>
                          Type "counter"
                          InstancePrefix "tasks_completed"
                          Attribute "tasks_completed"
                  </Value>
          </MBean>		
          #####################
          # Connection blocks #
          #####################
  		#DataNode Connection
          <Connection>
                  Host "<%= @node[:hostname] %>"
                  ServiceURL "service:jmx:rmi:///jndi/rmi://localhost:8006/jmxrmi"
  