anchor.diff:                              Acc;
                          (#member{state = ?STATE_DETACHED}, Acc) ->
                               Acc;
  +                       (#member{state = ?STATE_ATTACHED}, Acc) ->
  +                            Acc;
                          (#member{state = ?STATE_RUNNING,
                                   node  = N}, {Num1,Num2,M}) ->
                               {Num1+1, Num2+1, [N|M]};
  
positive.code:     {error, not_need_to_rebalance};
  rebalance1(true, _Nodes) ->
      case is_allow_to_distribute_command() of
          true ->
              case leo_redundant_manager_api:rebalance() of
                  {ok, List} ->
                      Tbl = leo_hashtable:new(),
  
negative.code:                 Error ->
                      Error
              end;
          {false, _} ->
              {error, ?ERROR_NOT_SATISFY_CONDITION}
      end.
  
  