Unbounded concurrency is a reliability nightmare. Learn how to protect your system from OOM kills and database exhaustion by implementing Semaphores and Worker Pools in Go.

Your background jobs crash on deployment, fail silently, and corrupt data. Here's how to fix it with worker pools, retry strategies, idempotency, and graceful shutdown. A guide to building production background processing systems that don't break under load. Tested at 20 req/sec.