fair point about the transaction controller, this is indeed something which is not yet distributed in bandicoot. Though, I don't think it's a big deal as the tx is really simple and lightweight.

Anyway, let's go back to nuodb :) I'm really interested on how it manages the whole ACID. I did not get it from the page nor from your reply.

For simplicity, let's pick on durability only. The archive nodes listen to replication and store serialized atoms on disk. At the same time the atoms replicate the changes to other instances. Is the durability achieved by a synchronous replication?