anchor.diff:  -spec test_upd() -> ok.
   test_upd() ->
       make_ring(symmetric, 10),
  -    R = fill_ring(random, 10000, [{ftype, mixed}]),
  -    print_db_status(R),
  -    db_stats().
  +    _ = fill_ring(random, 10000, [{ftype, update}]),
  +    db_stats(),
  +    util:for_to(1, 10, 
  +                fun(_) ->
  +                        start_sync(),
  +                        db_stats()
  +                end),
  +    ok.    
   
   -spec test_regen() -> ok.
   test_regen() ->
  
positive.code:       fun(Node) -> 
                util:wait_for(
                  fun() -> 
                          comm:send(Node, {send_to_group_member, rep_upd, {get_state, comm:this(), open_sync}}),
                          receive
                              {get_state_response, Val} -> Val =:= 0
                          end
  
negative.code:     io:format("--> START SYNC - ~p~n", [config:read(rep_update_recon_method)]),
      %start
      lists:foreach(fun(Node) ->
                            comm:send(Node, {send_to_group_member, rrepair, {rr_trigger}})
                    end, 
                    Nodes),
      %wait for end
  