> If the same record is changed in the file system and in Route 53 at the same time, we aim for last-write-wins. This is not strictly possible, since Route 53 d

> If the same record is changed in the file system and in Route 53 at the same time, we aim for last-write-wins. This is not strictly possible, since Route 53 does not expose modification timestamps on records Except route 53 provides a fully ACID transactional API you can build your own locks with!