OpenTelemetry, Datadog, and Grafana stack compared for 2026: instrumentation, cost, vendor lock-in, and what to say in observability interviews.
Token bucket, leaky bucket, fixed and sliding window rate limiter algorithms compared for 2026 system design interviews.
How read replicas actually scale reads, where replication lag breaks correctness, and the routing patterns senior engineers use in production.
A data-driven framework for choosing serverless or containers in 2026, with cost, latency, and scaling benchmarks.
Consul vs Eureka vs Kubernetes-native discovery compared for 2026 microservices architectures, with failure-mode tradeoffs.
Deep technical breakdown of Istio's control plane, Envoy's data plane, and when a service mesh is worth the operational cost.