Fix #834: When the 'compile' option is enabled, using uvicorn to start#1155
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danielalanbates wants to merge 1 commit intofishaudio:mainfrom
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Fix #834: When the 'compile' option is enabled, using uvicorn to start#1155danielalanbates wants to merge 1 commit intofishaudio:mainfrom
danielalanbates wants to merge 1 commit intofishaudio:mainfrom
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…nt deadlock with uvicorn When compile=True is used, PyTorch's Inductor backend spawns subprocess workers for Triton compilation. On Linux the default multiprocessing start method is "fork", which copies the parent's file descriptors and threading state — including any asyncio event loop started by uvicorn — into the child processes. This causes the compilation workers to deadlock indefinitely. Setting worker_start_method="spawn" makes Inductor start those workers from a clean slate, avoiding the inherited event-loop conflict. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2018suharsh-code
approved these changes
Mar 6, 2026
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Fixes #834
Summary
This PR fixes: When the 'compile' option is enabled, using uvicorn to start the Python script will cause blocking during inference.
Changes
Testing
Please review the changes carefully. The fix was verified against the existing test suite.
This PR was created with the assistance of Claude Sonnet 4.6 by Anthropic | effort: low. Happy to make any adjustments!