anchor.diff:  `es.action.heart.beat.lead` (default 15s)::
   The lead to task timeout before {eh} informs Hadoop the task is still running to prevent task restart.
   
  +added[2.1]
   [float]
   ==== Basic Authentication
   
   `es.net.http.auth.user`:: Basic Authentication user name
   `es.net.http.auth.pass`:: Basic Authentication password
   
  +added[2.1]
   [float]
   ==== SSL
   
  
positive.code: 
  # specifying a parent with id '123'
  es.mapping.parent = \<123>
  ----
  
  [float]
  ==== Metadata
  
negative.code: `es.mapping.timestamp` (default none)::
  The document field/property name containing the document timestamp. To specify a constant, use the `<CONSTANT>` format.
  
  added[2.1]
  `es.mapping.include` (default none)::
  Field/property to be included in final the document. Useful for _extracting_ the needed data from entities. The syntax is similar
  to that of {es} http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-request-source-filtering.html[include/exclude].
  Multiple values can be specified by using a comma. By default, no value is specified meaning all properties/fields are included.
  
  added[2.1]
  `es.mapping.exclude` (default none)::
  Field/property to be excluded in final the document. Useful for _eliminating_ unneeded data from entities. The syntax is similar
  to that of {es} http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-request-source-filtering.html[include/exclude].
  Multiple values can be specified by using a comma. By default, no value is specified meaning no properties/fields are excluded
  
  For example:
  [source,ini]
  ----
  