Good point. I guess this would need to be "S3 PUT event triggers code which adds object name to a list and starts a timer"; "timer expiry triggers code which i

Good point. I guess this would need to be "S3 PUT event triggers code which adds object name to a list and starts a timer"; "timer expiry triggers code which issues a batch invalidate for the list (and empties the list)". I wonder if there's any good way to generate that timer expiry event...