# 错误：net/http：TLS握手超时

- **ID:** `go/net-http-tls-handshake-timeout`
- **领域:** go
- **类别:** network_error
- **验证级别:** ai_generated
- **修复率:** 80%

## 根因

与服务器的TLS握手未在配置的超时内完成，通常由于网络延迟或服务器过载。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| 1.20 | active | — | — |
| 1.21 | active | — | — |

## 解决方案

1. **Set a reasonable TLS handshake timeout and use retry with backoff** (90% 成功率)
   ```
   transport := &http.Transport{
    TLSHandshakeTimeout: 10 * time.Second,
}
client := &http.Client{Transport: transport}
// retry with exponential backoff
   ```

## 无效尝试

- **Increasing timeout indefinitely** — May mask underlying network issues; better to handle with retry logic. (50% 失败率)