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Amazon OpenSearch Service powers search, log analytics, and time-series workloads on AWS. Here are the architecture patterns and cost levers that matter most in production.
NAT Gateways are one of the most silent budget killers on AWS. AWS finally added Compute Optimizer support to find idle ones — but the real fix is knowing when not to use them at all.
Cheapest Spot pool is often the unstable one. July 2026: price-capacity-optimized + attribute-based selection, stability scoring, interruption hygiene — before you chase $/hr.
EMR Serverless vs EC2 vs EKS for Spark. July 2026 refresh — Spot limits, cold start, Iceberg on all three, and a decision matrix for intermittent vs 24/7 jobs.
Athena still bills ~$5/TB scanned (or Capacity Reservations by DPU). July 2026 refresh — partitions, Parquet/Iceberg, workgroups, and when provisioned capacity wins.
The standard cost optimization checklist no longer cuts it. These 8 modern strategies — from unit economics to automated Savings Plans and cost observability — reflect how engineering teams are actually managing cloud spend in 2026.
AWS Graviton processors deliver 20-40% cost savings and better performance-per-watt. Complete guide: migration path, performance benchmarks, and production deployment patterns.
Karpenter replaces Kubernetes Cluster Autoscaler with intelligent bin-packing and just-in-time node provisioning. This guide covers setup, consolidation, cost optimization, and production patterns for EKS clusters.
Amazon SageMaker automates ML training, but instance costs add up fast. This guide covers spot instances, instance selection, distributed training, and production patterns to reduce SageMaker costs by 50-70%.
Bedrock billing is not a single line item — it is a composition of model invocation costs, Knowledge Base retrieval, Agent orchestration, Guardrails evaluation, and cross-region inference profile routing. Each component has its own pricing model and its own set of cost traps.
AWS Cost Optimization Hub consolidates recommendations from Compute Optimizer, Trusted Advisor, and Cost Explorer into a single prioritized list with estimated annual savings. If you are running three separate cost review processes, this dashboard replaces all of them.
Karpenter vs Cluster Autoscaler on EKS: consolidation + flexible NodePools beat half-empty ASG nodes. July 2026: karpenter.sh/v1, WhenEmptyOrUnderutilized, Spot mix checklist.