Openfire muc room load all room in the memory, is too slow


The configuration of the room service doesn’t seem to work. Every time I restart, all the rooms are loaded into the memory. My room has been distributed for several months. The configuration hasn’t worked in recent days

Are you sure that Openfire is actually preloading the rooms? This would only occur at boot time of the server. Rooms will be loaded in any case, whenever they are used for the first time. This could be as trivial as an admin looking at an overview page that contains all MUC rooms.