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by brightball 656 days ago
Read replicas come with their own complexity as you have to account for the lag time on the replica for UX. This leads to a lot of unexpected quirks if it’s not planned for.
2 comments

That's true, but you can use your replica only for non-realtime reporting, or even just as a hot standby.

Edit: Careful for the non-realtime reporting though if you want to run very slow queries - those will pause replication and can be a PITA.

A hot standby / failover still meets this definition. That’s how I interpreted what was being described.