python network_error ai_generated partial

httpx.ConnectError: [Errno 104] Connection reset by peer while connecting to 'https://unstable.example.com'

ID: python/httpx-connecterror-connection-reset-by-peer

Also available as: JSON · Markdown · 中文
80%Fix Rate
86%Confidence
0Evidence
2025-10-05First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.x active — — —

Root Cause

The remote server abruptly closed the TCP connection, often due to server overload or network issues.

generic

中文

远程服务器突然关闭TCP连接，通常是由于服务器过载或网络问题。

Workarounds

  1. 85% success Implement retry with exponential backoff and jitter 
    import time, random
for i in range(3):
    try:
        response = httpx.get('https://unstable.example.com')
        break
    except httpx.ConnectError:
        time.sleep(2 ** i + random.uniform(0, 1))
  2. 70% success Use a connection pool with keep-alive to reduce connection resets 
    client = httpx.Client()
response = client.get('https://unstable.example.com')

Dead Ends

Common approaches that don't work:

  1. Retrying immediately without any delay 80% fail

    The server may still be overloaded, causing immediate reset again.

  2. Using a different HTTP version 90% fail

    The issue is at the TCP level, not HTTP version.