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#AWS

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2 posts

01 Sept 2026

Cloud & DevOps

Making failure boring with Polly

A dependency being down shouldn't reach your users as a stack trace. Five resilience policies — retry, backoff, circuit breaker, timeout and fallback — and, more importantly, when each one makes things worse.

5 min read #.NET #Resilience #AWS #Polly

14 Aug 2026

System Architecture

When the same message arrives twice

Every queue worth using promises at-least-once delivery, which is a polite way of saying your handler will run twice. Here is the set of patterns — idempotency keys, the outbox, dead-letter queues and sagas — that make that a non-event.

6 min read #AWS #SQS #Event-Driven #Distributed Systems