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Memory Leaks in Long-Running Python Services: A Diagnostic Field Guide

Memory leaks in long-running Python services are not myths. The garbage collector is real but not magic, and a service that grows from 200 MB to 2 GB over a week has something specific going wrong. Here is how to find it.

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engineering Dispatch

Rate Limiting in FastAPI: Patterns That Survive Real Traffic

The rate limiter in your starter template will not survive a real traffic spike. Here is what actually works in production, and the small set of decisions that matter more than the algorithm.

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python Dispatch

Building a Job Queue Without Redis or RabbitMQ

Most job queue tutorials reach for Redis or RabbitMQ on page one. For most small APIs, you can build a robust, durable, retryable job queue in a single SQLite table — and skip the operational baggage entirely.

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