Eliminating FastAPI Event Loop Blocking inside Background Tasks
FastAPI has grown into one of the most popular modern web frameworks for building high-performance AI backends and microservices, thanks to its native support for asynchronous programming (async/await) and standard ASGI servers like Uvicorn. However, scaling a high-throughput FastAPI application often exposes a subtle concurrency bottleneck: Event Loop Blocking. This architectural flaw typically surfaces when…