Amazon Documentdb Adds Global Clusters
AWS identified two core use cases for the new Global Clusters feature: disaster recovery, for ensuring that the database stays live in the event of a regional outage, and low-latency reads across different local regions scattered across the globe. The Global Clusters feature expands on DocumentDB’s existing active-passive replication capability, where change events are replicated from the primary instance to read-only secondary instances. Until now, DocumentDB supported replication to a maximum of 15 replicas across three availability zones (AZs), within the same region....