anchor.diff:  `operations_read`::
   (long) The total number of operations read from the leader.
   
  -operations_written`::
  +`operations_written`::
   (long) The number of operations written on the follower.
   
   `outstanding_read_requests`::
  
positive.code: `failed_read_requests`::
  (long) The number of failed reads.
  
  failed_write_requests`::
  (long) The number of failed bulk write requests executed on the follower.
  
  `follower_aliases_version`::
  
negative.code: `write_buffer_operation_count`::
  (integer) The number of write operations queued on the follower.
  
  `write_buffer_size_in_bytes`::
  (long) The total number of bytes of operations currently queued for writing.
  =====
  //End shards
  