Resiliency in Aerospike Multi-Site Clusters

Aerospike Database 5 introduces multi-site clusters, which are designed to provide strong resiliency against various failures. These clusters enable businesses to respond quickly to customers and partners across the globe by offering a global footprint, always-on availability, strong consistency, and cost efficiency. Multi-site clusters consist of multiple nodes distributed evenly across sites, with data sharded into partitions and replicated for synchronous updates. They support zero downtime upgrades and automatic recovery from most node, site, and link failures. The failure detection and recovery process ensures that the cluster is ready to process new requests while new replicas are populated from their respective masters. A 3-site cluster provides superior resiliency compared to a 2-site cluster, automatically recovering with full availability of data from any single site failure and node failures spanning any two sites.