python runtime_error ai_generated true

pytest.xdist.WorkerInterrupted: worker 'gw0' crashed or timed out after 300 seconds

ID: python/pytest-xdist-worker-timeout

Also available as: JSON · Markdown · 中文
80%Fix Rate
83%Confidence
0Evidence
2024-04-05First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.0.0 active — — —
3.1.0 active — — —

Root Cause

A test worker in pytest-xdist took longer than the specified timeout (default 300s) to complete, often due to a hanging test, infinite loop, or slow external resource.

generic

中文

pytest-xdist中的测试工作进程执行时间超过指定的超时时间（默认300秒），通常是由于测试挂起、无限循环或外部资源缓慢。

Workarounds

  1. 75% success Set a longer timeout for specific tests using pytest.mark.timeout or xdist's --timeout option 
    pip install pytest-timeout
@pytest.mark.timeout(600)
def test_slow_operation():
    ...
Or run: pytest --timeout=600 -n auto
  2. 90% success Identify and fix the hanging test by running it in isolation with verbose logging 
    Run the test individually: pytest tests/test_slow.py -v --timeout=60
Add logging to identify where it hangs, then fix the infinite loop or resource issue.

Dead Ends

Common approaches that don't work:

  1. Increasing the timeout limit globally without investigating the root cause 70% fail

    This only delays the failure; the underlying issue (e.g., a hanging test) remains and may cause intermittent failures.

  2. Disabling xdist entirely to avoid the timeout 40% fail

    This removes parallel execution benefits, slowing down the test suite significantly.