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failure domain

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Sep 8, 2026 · Operations

Resource Profiling at 10M QPS: From Coarse Averages to Fine-Grained Capacity Decisions

This article details how to evolve resource profiling from misleading averages to fine-grained, SLO-aware capacity models that incorporate instance heterogeneity, workload fingerprints, multi-resource bottlenecks, failure domains, and online calibration to drive trustworthy scheduling, autoscaling, release gating, and degradation decisions at ten-million-QPS scale.

AutoscalingSLO-based capacitycapacity planning

0 likes · 38 min read

Resource Profiling at 10M QPS: From Coarse Averages to Fine-Grained Capacity Decisions

Random Bulletin

Jun 24, 2026 · Operations

Rack Awareness: From Zero to High‑QPS – Boost Availability, Cut Cross‑AZ Traffic

A real‑world rack‑power outage showed that three‑replica Kafka clusters can lose all replicas when brokers share a failure domain, prompting a deep dive into rack awareness—how fault‑domain tags are injected, replica‑placement and leader‑distribution algorithms, consumer‑proximity reads, bandwidth costs, failure scenarios, and the stepwise evolution from hundred‑thousand to ten‑million QPS deployments.

KafkaPulsarRack Awareness

0 likes · 26 min read

Rack Awareness: From Zero to High‑QPS – Boost Availability, Cut Cross‑AZ Traffic