anchor.diff:  (integer)
   Total number of get operations.
   
  +`indices.get.getTime`::
  +(<<time-units,time value>>)
  +Time spent performing get operations.
  +
   `indices.get.time_in_millis`::
   (integer)
   Time in milliseconds
  
positive.code: (integer)
  Total number of fetch operations.
  
  `indices.search.fetch_time_in_millis`::
  (integer)
  Time in milliseconds
  
negative.code: (integer)
  Total number of index warmers.
  
  `indices.warmer.total_time`::
  (<<time-units,time value>>)
  Total time spent performing index warming operations.
  
  `indices.warmer.total_time_in_millis`::
  (integer)
  Total time in milliseconds
  spent performing index warming operations.
  
  `indices.query_cache.memory_size`::
  (<<byte-units,byte value>>)
  Total amount of memory used for the query cache across all shards assigned to
  the node.
  
  `indices.query_cache.memory_size_in_bytes`::
  (integer)
  Total amount of memory, in bytes, used for the query cache across all shards
  assigned to the node.
  
  `indices.query_cache.total_count`::
  (integer)
  