anchor.diff:  is_interesting_stat({vb_replica_curr_items, _}) -> true;
   is_interesting_stat(_) -> false.
   
  -current_status(Expensive) ->
  +current_status() ->
       ClusterCompatVersion = case (catch list_to_integer(os:getenv("MEMBASE_CLUSTER_COMPAT_VERSION"))) of
                                  X when is_integer(X) -> X;
                                  _ -> 1
  
positive.code:     {Replies, _} = gen_server:multi_call([node() | nodes()], ?MODULE, status, 5000),
      Replies.
  
  stats() ->
      Stats = [wall_clock, context_switches, garbage_collection, io, reductions,
               run_queue, runtime],
      [{Stat, statistics(Stat)} || Stat <- Stats].
  
negative.code:     process_flag(trap_exit, true),
  
      timer:send_interval(?HEART_BEAT_PERIOD, beat),
      Self = self(),
      EventHandler =
          ns_pubsub:subscribe_link(
  