Azure Cache for Redis is being retired, pushing teams to migrate to Azure Managed Redis. This guide covers how to use Datadog and Eden together to execute a safe, zero-downtime migration. The process involves three phases: establishing performance baselines (peak ops/sec, p99 latency, hit rate, memory usage) using Datadog's existing Redis integrations; executing the cutover using Eden's Exodus tool which handles data replication, dual-write consistency, traffic shifting strategies (canary, blue/green, big bang), and instant rollback; and validating parity post-migration by comparing new cache metrics against captured baselines. After migration, ongoing health monitoring covers saturation, cache efficiency, memory pressure, and geo-replication availability.
