go runtime_error ai_generated true

error: context canceled (goroutine worker returned)

ID: go/context-canceled-during-goroutine

Also available as: JSON · Markdown · 中文
80%Fix Rate
87%Confidence
0Evidence
2024-11-20First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1.20 active — — —
1.21 active — — —
1.22 active — — —
1.23 active — — —

Root Cause

A parent context was canceled (deadline, manual cancel, or HTTP client disconnect) and the worker goroutine observes ctx.Err() == context.Canceled.

generic

中文

父 context 被取消（超时、手动 cancel 或 HTTP 客户端断开），worker goroutine 观察到 ctx.Err() == context.Canceled。

Workarounds

  1. 92% success 
    Treat context.Canceled as expected and return without error at shutdown:

if errors.Is(err, context.Canceled) {
    return nil
}
  2. 90% success 
    Propagate the context through all calls and check ctx.Err() at loop boundaries.

Dead Ends

Common approaches that don't work:

  1. 90% fail

    The context remains canceled; retries fail immediately and waste resources.

  2. 85% fail

    Leaks the goroutine past shutdown and defeats the purpose of cancellation.