I'm implementing Facebook style notifications/activities (e.g "your friend liked this article") in our app. I considered message queue for this task before exploring how BATCH insert in C* could perform. Could I leave Queue altogether and just use batch insert? Is like...5000 insers too much overload for this kind of work? And what is limiting the number of inserts?
oh..the data model in C* is straightforward - "give me all notifications for user A"