Minimize downtime by rehearsing upgrades on replicas, validating extensions, using logical replication or pg_upgrade, and scheduling a brief, tested cutover window.
Zero-downtime deployments with Kubernetes and Docker use rolling updates, readiness probes, and health checks to route traffic only to verified pods while old replicas drain gracefully.
Deadlocks surface as stalled transactions and timeout spikes. Trace lock graphs, shorten transaction scope, index hot paths, and retry safely to keep web workloads scalable.
Secure migration to AWS starts with data classification, encrypted transfer, IAM least privilege, and validation checks to preserve integrity while modernizing legacy on-premise systems.
Cut serverless costs by right-sizing memory, capping concurrency, caching hot paths, and offloading steady workloads where provisioned capacity beats per-request pricing.