anchor.diff:      index => "%{[@metadata][index]}"
       document_type => "%{[@metadata][type]}"
     }
  -
  -  ...
   }
   ------------------------------------------------------------------------------
  +
  +Events indexed into elasticsearch with shown logstash configuration will be
  +similar to events directly indexed by beats into elasticsearch.
  +
   
   Example beat configuration:
   [source,yaml]
  
positive.code: Logstash elasticsearch output can be configured to use metadata and event type
  for indexing.
  
  Example Logstash 1.5 config:
  [source,logstash]
  ------------------------------------------------------------------------------
  ...
  
  output {
    elasticsearch {
  
negative.code:     enabled: true
  
      hosts:
        - logstash1:5044
        - logstash2:5044
        - logstash3:5044
  
      # configure index prefix name
      index: mybeat
  