anchor.diff:       multi_round,    % run multiple sync rounds with sync probability 1
        multi_round2,   % run multiple sync rounds with sync probability 0.4
        parts           % get_chunk with limited items (leads to multiple get_chunk calls, in case of bloom also multiple bloom filters)
  -	].
  +    ].
   
   regen_special() ->
       [
  
positive.code:     {element(1, Msg)}.
  
  mpath(Config) ->
  	%parameter
      NodeCount = 4,
      DataCount = 1000,
      Fpr = 0.1,
      Method = proplists:get_value(ru_method, Config),
      FType = proplists:get_value(ftype, Config),
  	TraceName = erlang:list_to_atom(atom_to_list(Method)++atom_to_list(FType)),
      %build and fill ring
      build_symmetric_ring(NodeCount, Config, [get_rep_upd_config(Method), {rr_bloom_fpr, Fpr}]),
      _ = db_generator:fill_ring(random, DataCount, [{ftype, FType},
  
negative.code:     SKey = ?RT:get_random_node_id(),
      CKey = util:randomelem(lists:delete(SKey, ?RT:get_replica_keys(SKey))),
      %server starts sync
      %trace_mpath:start(TraceName, fun mpath_map/3),
      trace_mpath:start(TraceName),
      api_dht_raw:unreliable_lookup(SKey, {?send_to_group_member, rrepair,
                                                {request_sync, Method, CKey}}),
      %waitForSyncRoundEnd(NodeKeys),
      timer:sleep(3000),
      trace_mpath:stop(),
      %TRACE
      A = trace_mpath:get_trace(TraceName),
      trace_mpath:cleanup(TraceName),
      B = [X || X = {log_send, _Time, _TraceID,
                     {{_FIP,_FPort,_FPid}, _FName},
                     {{_TIP,_TPort,_TPid}, _TName},
                     _Msg, _LocalOrGlobal} <- A],
      ok = file:write_file("TRACE_" ++ atom_to_list(TraceName) ++ ".txt", io_lib:fwrite("~.0p\n", [B])),
      ok = file:write_file("TRACE_HISTO_" ++ atom_to_list(TraceName) ++ ".txt", io_lib:fwrite("~.0p\n", [trace_mpath:send_histogram(B)])),
      %ok = file:write_file("TRACE_EVAL_" ++ atom_to_list(TraceName) ++ ".txt", io_lib:fwrite("~.0p\n", [rr_eval_admin:get_bandwidth(A)])),
      ok.
  
  simple(Config) ->
      Method = proplists:get_value(ru_method, Config),
  