Concurrency

• July 25, 2026

  go

  Supervised fire-and-forget in Go

  A bounded worker pool for small background tasks, with task-owned contexts, panic recovery, and graceful shutdown.

• February 24, 2026

  go

  What canceled my Go context?

  How Go 1.20's WithCancelCause and Go 1.21's WithTimeoutCause let you attach a reason to context cancellation, plus a gotcha with manual cancel and the stdlib pattern that covers every path.

• September 7, 2025

  go

  Early return and goroutine leak

  Prevent goroutine leaks caused by early returns with unbuffered channels. Learn buffering, draining, errgroup patterns, and goleak testing.

• August 23, 2023

  go

  Limit goroutines with buffered channels

  Control goroutine concurrency with buffered channels as semaphores. Prevent resource exhaustion with backpressure patterns in Go workers.