CDAP internally creates tables in "user" space like "system.queue.<app>.<flow>", "system.queue.config", "system.stream.state.store"
As a result, if users create datasets whose namespace start with "system.", there could potentially be conflicts.
This seems to be a tricky fix, we will just document this for 2.8.
Please add this as a known issue on the draft Release Notes page. Do we need to change any docs though?
No we don't have to change any docs.