Incremental backups are not currently supported in NoSQL DB, as I think you know. The fact that Cassandra supports incremental backups is not in itself a reason we should make this a high priority feature for a future release. If you can describe more about how you would use this feature, it would help us to prioritize. For example:
- are you going to backup your entire data set?
- how large is it?
- on what media?
- what replication factor are you using (the default is 3) and why is replication insufficient as a backup?