Term Kind Topic What it is
Multi-Leader Replication Multi-Master, Active-Active Replication pattern Replication Accepting writes at more than one node and replicating between them, which removes the single-primary bottleneck and introduces write conflicts.
Replication in Practice Read Replicas, Multi-Primary pattern Replication Copying data across nodes for availability and read capacity, and the lag that turns into user-visible bugs if session guarantees are not designed in.