go resource_error ai_generated true

runtime: goroutine 泄漏：net/http.(*persistConn).readLoop 卡住

runtime: goroutine leak: net/http.(*persistConn).readLoop stuck

ID: go/goroutine-leak-http-body

其他格式: JSON · Markdown 中文 · English
80%修复率
87%置信度
0证据数
2024-07-03首次发现

版本兼容性

版本状态引入弃用备注
1.18 active — — —
1.22 active — — —

根因分析

HTTP 响应体未关闭，导致持久连接 goroutine 一直阻塞在读取上。

English

HTTP response bodies are not closed, causing persistent connection goroutines to remain blocked reading.

generic

解决方案

  1. 95% 成功率 
    resp, err := client.Do(req)
if err != nil { return err }
defer resp.Body.Close()
io.Copy(io.Discard, resp.Body)
  2. 88% 成功率 
    ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
defer cancel()
req = req.WithContext(ctx)

无效尝试

常见但无效的做法:

  1. 75% 失败

    Timeout does not close the body; the readLoop goroutine still leaks.

  2. 80% 失败

    Reusing the client does not fix unclosed bodies.