go network_error ai_generated true

error: net/http: request canceled (Client.Timeout or context cancellation)

ID: go/net-http-request-canceled-by-client

Also available as: JSON · Markdown · 中文
80%Fix Rate
85%Confidence
0Evidence
2024-01-15First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1.20 active — — —
1.21 active — — —

Root Cause

The client canceled the HTTP request due to timeout or explicit context cancellation before the server responded.

generic

中文

客户端因超时或显式上下文取消，在服务器响应前取消了HTTP请求。

Workarounds

  1. 90% success Use a custom context with proper timeout and cancellation handling 
    ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
req, _ := http.NewRequestWithContext(ctx, "GET", url, nil)
resp, err := client.Do(req)
if errors.Is(err, context.Canceled) { /* handle gracefully */ }

Dead Ends

Common approaches that don't work:

  1. Increasing client timeout indefinitely without handling context 70% fail

    Context cancellation can still occur from upstream, leading to same error; indefinite timeout is not scalable.

  2. Ignoring the error and retrying blindly 80% fail

    Retrying without checking context may amplify load and cause cascading failures.