Introduction: Why Go Concurrency Is Special
I’ve debugged goroutine leaks at 3 AM, fixed race conditions that only appeared under load, and watched a single missing defer statement bring down a production service. “Don’t communicate by sharing memory; share memory by communicating” — this Go mantra turned concurrent programming on its head. Instead of mutexes and semaphores, channels. Instead of threads — goroutines. Instead of callbacks — select. And all this with context for lifecycle management.
Common concurrency mistakes I’ve encountered: