MongoDB performance with growing data structure

Question

Let\'s say we are designing a new system and have decided to use MongoDB as the primary database. The data schema is very similar to a blog with [growing] comments.

Answer 1

Your main problem is that you are then probably making updates and deletes to data in different memory pages which means you won't be able to update as sequentially. In this instance, many databases will have the same problem so switching from MongoDB won't solve anything.