# 异步超时错误：操作超时

- **ID:** `python/starlette-async-timeout`
- **领域:** python
- **类别:** network_error
- **验证级别:** ai_generated
- **修复率:** 80%

## 根因

异步操作（如数据库查询或 HTTP 请求）耗时超过配置的超时时间。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| 3.x | active | — | — |

## 解决方案

1. **Set a reasonable timeout and handle it gracefully** (90% 成功率)
   ```
   import asyncio
try:
    async with asyncio.timeout(10):
        result = await some_operation()
except asyncio.TimeoutError:
    return {'error': 'timeout'}
   ```
2. **Optimize the slow operation** (80% 成功率)
   ```
   Profile and optimize database queries or use caching.
   ```

## 无效尝试

- **Increasing timeout to an extremely high value** — May mask underlying performance issues. (50% 失败率)
- **Ignoring the error and retrying infinitely** — Could lead to resource exhaustion. (70% 失败率)