go network_error ai_generated true

http: response writer timeout: request timed out after 30s

ID: go/http-response-writer-timeout

Also available as: JSON · Markdown · 中文
80%Fix Rate
82%Confidence
0Evidence
2024-03-22First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1.18 active — — —
1.21 active — — —

Root Cause

The server's WriteTimeout expired while writing the response body, causing the connection to be closed abruptly.

generic

中文

服务器写入超时在写入响应体期间到期，导致连接突然关闭。

Workarounds

  1. 80% success 
    Set a reasonable WriteTimeout and handle errors from Write: if _, err := w.Write(data); err != nil { return }
  2. 75% success 
    Use http.TimeoutHandler to wrap handlers and return a timeout response: http.TimeoutHandler(handler, 30*time.Second, "timeout")

Dead Ends

Common approaches that don't work:

  1. 70% fail

    May cause slow clients to hold connections indefinitely, leading to resource exhaustion.

  2. 90% fail

    Writes will fail silently; data is corrupted and the connection is already closed.