anchor.diff:      ns_bucket:is_persistent(BucketName).
   
   grab_system_aggregate_op_stats(all, ClientTStamp, Window) ->
  -    grab_aggregate_op_stats("@system", bucket_nodes("@system"), ClientTStamp, Window);
  +    grab_aggregate_op_stats("@system", section_nodes("@system"), ClientTStamp, Window);
   grab_system_aggregate_op_stats([Node], ClientTStamp, Window) ->
       grab_aggregate_op_stats("@system", [Node], ClientTStamp, Window).
   
   grab_aggregate_op_stats(Bucket, all, ClientTStamp, Window) ->
  -    grab_aggregate_op_stats(Bucket, bucket_nodes(Bucket), ClientTStamp, Window);
  +    grab_aggregate_op_stats(Bucket, section_nodes(Bucket), ClientTStamp, Window);
   grab_aggregate_op_stats(Bucket, Nodes, ClientTStamp, Window) ->
       {_MainNode, MainSamples, Replies} =
           menelaus_stats_gatherer:gather_stats(Bucket, Nodes, ClientTStamp, Window),
  
positive.code: do_couchbase_index_stats_descriptions(BucketId, AddIndex) ->
      Nodes = case AddIndex of
                  all ->
                      bucket_nodes("@index-" ++ BucketId);
                  XNodes ->
                      XNodes
              end,
  
negative.code:     {[lists:map(StatExtractor, NodeSamples) || {_, NodeSamples} <- AllNodesSamples], Nodes}.
  
  get_samples_from_one_of_kind([Kind | RestKinds], StatName, ClientTStamp, Window) ->
      ForNodes = section_nodes(Kind),
      RV = {Samples, _} = get_samples_for_stat(Kind, StatName, ForNodes, ClientTStamp, Window),
      case RestKinds =/= [] andalso are_samples_undefined(Samples) of
          true ->
  