anchor.diff:      {error, not_need_to_rebalance};
   rebalance1(true, _Nodes) ->
       case is_allow_to_distribute_command() of
  -        true ->
  +        {true, _} ->
               case leo_redundant_manager_api:rebalance() of
                   {ok, List} ->
                       Tbl = leo_hashtable:new(),
  
positive.code:                 Error ->
                      Error
              end;
          false ->
              {error, ?ERROR_NOT_SATISFY_CONDITION}
      end.
  
  
negative.code:                             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]};
  