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operations engineering

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Random Bulletin
Random Bulletin
Sep 4, 2026 · Operations

Capacity Prediction at 10M QPS: From Gut Feel to Data-Driven Decisions

This article explains why experience-based capacity planning fails at 10M QPS scale and presents a data-driven framework separating business demand, system load, and resource capacity, using prediction intervals, error feedback loops, and incremental model building to turn vague traffic estimates into verifiable resource decisions.

Capacity PlanningQPS scalingdata-driven operations
0 likes · 30 min read
Capacity Prediction at 10M QPS: From Gut Feel to Data-Driven Decisions
Youzan Coder
Youzan Coder
Dec 9, 2020 · Operations

A DevOps Engineer's Journey: From Middleware to Business Operations at YouZan

The article chronicles a YouZan DevOps engineer’s five‑year evolution from Alibaba‑based middleware duties to business‑operation leadership, highlighting the relentless pursuit of system stability through the 1‑minute detection, 5‑minute localization, 10‑minute resolution mantra, complex multi‑datacenter integrations, continuous learning, and a mindset of proactive problem‑solving.

DevOpsSaaSYouzan
0 likes · 7 min read
A DevOps Engineer's Journey: From Middleware to Business Operations at YouZan