Ensure parallel workers are cleaned up after failures - #21949
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GruffElixir wants to merge 2 commits into
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Ensure parallel workers are cleaned up after failures#21949GruffElixir wants to merge 2 commits into
GruffElixir wants to merge 2 commits into
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According to mypy_primer, this change doesn't affect type check results on a corpus of open source code. ✅ |
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Fixes #21905.
Parallel output-json checks can raise a compile error while a build worker is still processing. Worker cleanup currently waits once and leaves a slow worker alive, which can surface as
ResourceWarningand flaky failures on high-core systems. If the shutdown grace period expires, terminate the worker and fall back to killing it if needed.Added a regression test for the timeout cleanup path.
Validation:
python -m pytest -o addopts='' -q mypy/test/testbuild.py mypy/test/testoutput.pypython runtests.py testbuild.pypython -m ruff check mypy/test/testbuild.pygit diff --check