anchor.diff:  fetch_buckets_stat(Stats, StatName) ->
       dict:from_list(
         [{Bucket, fetch_bucket_stat(Stats, Bucket, StatName)}
  -       || {Bucket, _OrdDict} <- Stats]
  +       || {Bucket, _OrdDict} <- Stats,
  +          Bucket =/= "@global"]
        ).
   
   
  
positive.code: errors(overhead) ->
      "Metadata overhead warning. Over  ~p% of RAM allocated to bucket  \"~s\" on node \"~s\" is taken up by keys and metadata.";
  errors(disk) ->
      "Approaching full disk warning. Usage of disk \"~s\" on node \"~s\" is around ~p%.".
  
  %% ------------------------------------------------------------------
  %% API Function Definitions
  
negative.code: %% @doc check for write failures inside ep engine
  check(write_fail, Opaque, _History, Stats) ->
      check_stat_increased(Stats, ep_item_commit_failed, Opaque);
  
  %% @doc check for write failures in audit log
  check(audit_write_fail, Opaque, _History, Stats) ->
      check_global_stat_increased(Stats, audit_dropped_events, Opaque);
  
  %% @doc check for any oom errors an any bucket
  check(oom, Opaque, _History, Stats) ->
  