39 long-form articles on production engineering — how real systems fail, why, and what actually fixed them.
9 articles matching “NAT”
Production Incidents18 min read
It's 3 AM. Inserts are failing with 'Duplicate entry 2147483647' — but you never inserted a duplicate. Welcome to one of MySQL's most quietly famous outages.
Query Optimization13 min read
Every list endpoint ends in LIMIT 20 OFFSET ?. It has an index, page one returns in 8ms, and it passes review — then one Tuesday page 4,000 takes four seconds and a nightly export job stops finishing.
Tradeoffs in Production16 min read
Kernel TCP keep-alive probes the network path; app heartbeats prove the peer process is serving; HTTP Connection: keep-alive only reuses sockets.
Scaling & Infra22 min read
Not a "what is serverless" post. The stuff you learn after the demo, from someone who's run it at scale.
Scaling & Infra20 min read
Not a "what is Lambda" post. A deep dive into how Lambda actually works: Firecracker microVMs and the Worker/placement fleet, how invocations get routed on the warm vs cold path, and what the INIT phase really does (and…
Tradeoffs in Production15 min read
When a service buckles under load, the first instinct is to make the buffer bigger — and it's the most natural wrong answer in systems engineering.
Architecture Decisions18 min read
Most engineers think a leader election "picks the best node." It doesn't — it gets every node to agree on the same node, and agreement under failure is consensus.
Architecture Decisions22 min read
A plain-language walkthrough of Pat Helland's 2007 classic "Life beyond Distributed Transactions" — the paper that named the patterns every large system already uses.
Architecture Decisions20 min read
Every process you run will be told to stop — the only question is whether it gets a request it can act on or a bullet it never sees coming.