python network_error ai_generated true

httpx.ConnectTimeout: 连接到主机'api.example.com'超时（5000毫秒后），DNS解析失败

httpx.ConnectTimeout: Connection timed out after 5000ms to host 'api.example.com' (DNS resolution failed)

ID: python/httpx-connecttimeout-dns-resolution

其他格式: JSON · Markdown 中文 · English
80%修复率
88%置信度
0证据数
2024-02-20首次发现

版本兼容性

版本状态引入弃用备注
3.x active — — —

根因分析

DNS服务器无法解析主机名，可能是由于网络配置错误或DNS服务器不可用。

English

The DNS server cannot resolve the hostname, possibly due to network misconfiguration or DNS server unavailability.

generic

解决方案

  1. 70% 成功率 Use an IP address directly instead of hostname 
    client = httpx.Client()
response = client.get('http://93.184.216.34')
  2. 90% 成功率 Configure a custom DNS resolver in the system or use a different DNS server 
    import socket
socket.setdefaulttimeout(10)
# Or change /etc/resolv.conf (Linux) or network settings (Windows)

无效尝试

常见但无效的做法:

  1. Increasing timeout to a very high value 80% 失败

    Timeout increase does not fix DNS resolution; the request will still hang if DNS fails.

  2. Restarting the application without checking DNS configuration 90% 失败

    The underlying DNS issue persists across restarts.