Test OmniRoute Fallbacks for Semantic Consistency, Not Just Availability
diegosouzapw/OmniRoute is an MIT-licensed AI gateway that advertises one endpoint across many providers and models, with quota-aware fallback and toke…
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Test Saga Compensation When Payment Succeeds but Inventory Times Out
An order reserves inventory, charges payment, then times out waiting for reservation confirmation. Cancellation begins. A late inventory success arriv…
AI memory가 자기 출력을 다시 입력으로 세지 않게 하는 법
AI memory가 자기 출력을 다시 입력으로 세지 않게 하는 법 AI memory 시스템은 대화에서 기억을 만들고, 그 기억을 다시 요약해 더 높은 수준의 결론을 만들 수 있습니다. 여기서 원본에 가까운 입력과 시스템이 만든 파생 결과를 구분하지 않으면, 파생 결과가…
Merge Concurrent Agent Patches by Base Commit and Hunk Ownership
Two coding agents start from commit A. One finishes quickly and merges as B. The second finishes later with a patch that was valid against A. Applying…
Treat Per-Task Model Switching as a Concurrency Protocol
Changing the model for a running AI task is not a settings update. It is a distributed operation: read current task -> prepare credentials/config -…
Service Level Objectives for Complex Microservices
Why SLOs Break in Microservices A SLO that works for a monolith often collapses when you distribute the same logic across 30 services. The math of ava…
Building a Culture of Reliability: Beyond the SRE Handbook
You Can't Hire Your Way to Reliability I've seen companies hire 5 SREs and expect reliability to magically improve. It doesn't. Reliability is a cultu…
On-Call Engineer Burnout: How to Build Sustainable Rotations
Most on-call rotations start with good intentions and end with someone updating their LinkedIn. The schedule ships as a shared Google Sheet, the team …
Why Your Microservices Need Circuit Breakers (And How to Add Them)
The Cascading Failure That Took Down Everything Our payment service went down for 3 minutes. No big deal, right? Except every service that called paym…
Your Guardrails Are a Firewall. Your Failures Are a Cascade
TL;DR— Most production AI teams build safety layers using the content-moderation mental model: classify input, classify output, block or pass. But the…
Exponential backoff with jitter stopped our CI retry storms
TL;DR: Exponential backoff with jitter spreads client retries over time so a recovering service doesn't get flattened by a synchronised wave. We added…
Surviving the region you run in: failover on Aurora DSQL, and what the demo proves
The thesis Quorum is built on is uncomfortable and true: the tools a team uses to coordinate an incident often live in the same region as the thing th…
Railway vs Fly.io: I Wanted More Control After Railway’s May 2026 Outage
TL;DR I no longer recommend Railway for serious production workloads after its recent pattern of incidents. Fly.io is not simpler, but it is one of th…
Why We Restart to Fix It
On Second Thought — Episode 10 The pager has gone off. Memory on the auth service is climbing in a way it should not be. You SSH in, you observe nothi…
The Fire That Reached the Backups: The OVHcloud Strasbourg Data-Centre Fire, 2021
Tales from the Bare Metal — Episode 05 In the early hours of 10 March 2021, a fire began in a power room in Strasbourg. By morning an entire data cent…
Claude Code for Canary Deployments: How I Ship to 1% of Users Before Breaking Everything
I used to ship by faith. The change passed code review, the tests went green, the deploy button was right there, and I pressed it. Most of the time it…
How to Fix Slow DNS Lookup: A Complete Troubleshooting Guide
Every connection your application makes starts with a DNS lookup. When that lookup is slow — or fails entirely — the symptoms range from vague latency…
Семь раз посчитай — один раз урони: моделируем инциденты до деплоя
Ракету не отправляют в космос только потому, что её двигатель и насос успешно прошли стендовые испытания по отдельности. Перед стартом инженеры рассчи…