MongoDB changeStreams可以侦听系统级别的集合吗？

Question

With the limited documentation available on MongoDB changestreams which they introduced version 3.6 onwards, I am not able to conclude if MongoDB changestreams let us listen to system collection changes.

Currently, I am interested in system.profile collection.

Answer 1

As of MongoDB v4.0, you can't open a change stream on internal database .system.profile collection.

The collection is reserved for internal use and is not included in the replica set oplog , and because changestreams rely on the oplog it won't be able to broadcast the change events.