Aerospike Database 7.2: Enhanced clustering and XDR controls

The new Aerospike Database 7.2 introduces the Active Rack feature, which allows for active-passive cross-AZ deployments, enabling AZ fault-tolerant disaster recovery with low latency and cost savings. This enables cluster deployments to be insulated from losing availability during a network split between AZs or if an AZ goes down. The new feature gives a two-AZ SC deployment the same benefit as a tie-breaker deployment without needing a third zone. Additionally, XDR version shipping controls have been enhanced with dynamically configurable mechanisms to control how XDR ships versions, including policies for shipping the latest version, ensuring at least one version in a defined interval, and shipping all versions. These features improve performance and reduce costs in multi-zone deployments.