Add select node logic

Author: SimonUnge

deps/rabbit/src/rabbit_queue_member_eval.erl

@@ -230,6 +230,8 @@ select_node(Nodes, _QueueCount, _QueueCountStartRandom) ->
                                                end, Acc, MNodes)
                            end, Counters0, Queues),
     L0 = maps:to_list(Counters),
+    %% Maybe cache this result for a few seconds, to
+    %% not run this check for each queue?
     L1 = lists:sort(fun({_N0, C0}, {_N1, C1}) ->
                             C0 =< C1
                     end, L0),