anchor.diff:  `ingest.pipelines.<pipeline_id>.<processor>.failed`::
       (integer)
       Number of failed operations for the processor.
  +====
   
   [[cluster-nodes-stats-api-response-body-adaptive-selection]]
   ===== `adaptive_selection` section
   
  +[%collapsible]
  +====
   The `adaptive_selection` statistics are keyed by node. For each node:
   
   `adaptive_selection.outgoing_searches`::
  
positive.code: (integer)
  Size, in bytes, of TX packets sent by the node during internal cluster
  communication.
  
  [[cluster-nodes-stats-api-response-body-http]]
  ===== `http` section
  
  `http.current_open`::
  (integer)
  Current number of open HTTP connections for the node.
  
negative.code: `jvm.classes.total_unloaded_count`::
  (integer)
  Total number of buffer pool classes unloaded since the JVM started.
  ====
  
  [[cluster-nodes-stats-api-response-body-threadpool]]
  ===== `thread_pool` section
  
  [%collapsible]
  ====
  `thread_pool.<thread_pool_name>.threads`::
  (integer)
  Number of threads in the thread pool.
  