Comment by lxpz

We ensure the CRDT is synced with at least two nodes in different geographical areas before returning an OK status to a write operation. We are using CRDTs not so much for their asynchronous replication properties (what is usually touted as eventual consistency), but more as a way to avoid conflicts between concurrent operations so that we don't need a consensus algorithm like Raft. By combining this with the quorum system (two writes out of three need to be successfull before returning ok), we ensure durability of written data but without having to pay the synchronization penalty of Raft.