Strictly, this is not a Flex related question. Since I am going to develop client with Flex, please forgive me to post here. For example, there are more than nearly 300 clients and BlazeDS is used on the server side. Because clients have some info to share and they can't talk to each other directly, they will store these info to DB so that others can fetch what they need. The problem is these info will be changed very frequently which means the DB log may expand quickly.
Actually, relevant info should be deleted when a client session ends. In my opinion, it will be very cool if there's a pool at memory on server. But I don't know whether BlazeDS supports this. If not, how to deal with so many IO access and optimize the performance?