mirror of
https://github.com/smittix/intercept.git
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63994ec1d4
Match gunicorn's patch_all() args exactly (remove subprocess=False), filter the MonkeyPatchWarning from the unavoidable double-patch, and wrap gevent's _ForkHooks.after_fork_in_child to catch the spurious AssertionError that fires when subprocesses fork after double-patching. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
64 lines
2.0 KiB
Python
64 lines
2.0 KiB
Python
"""Gunicorn configuration for INTERCEPT."""
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import warnings
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warnings.filterwarnings(
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'ignore',
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message='Patching more than once',
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category=DeprecationWarning,
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)
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def post_fork(server, worker):
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"""Apply gevent monkey-patching immediately after fork.
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Gunicorn's built-in gevent worker is supposed to handle this, but on
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some platforms (notably Raspberry Pi / ARM) the worker deadlocks during
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its own init_process() before it gets to patch. Doing it here — right
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after fork, before any worker initialisation — avoids the race.
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Gunicorn's gevent worker will call patch_all() again in init_process();
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the duplicate call is harmless (gevent unions the flags) and the
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MonkeyPatchWarning is suppressed above.
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"""
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try:
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from gevent import monkey
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monkey.patch_all()
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except Exception:
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pass
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# Silence the spurious AssertionError in gevent's fork hooks that fires
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# when subprocesses fork after a double monkey-patch.
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try:
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from gevent.threading import _ForkHooks
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_orig = _ForkHooks.after_fork_in_child
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def _safe_after_fork(self):
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try:
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_orig(self)
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except AssertionError:
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pass
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_ForkHooks.after_fork_in_child = _safe_after_fork
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except Exception:
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pass
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def post_worker_init(worker):
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"""Suppress noisy SystemExit tracebacks during gevent worker shutdown.
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When gunicorn receives SIGINT, the gevent worker's handle_quit()
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calls sys.exit(0) inside a greenlet. Gevent treats SystemExit as
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an error by default and prints a traceback. Adding it to NOT_ERROR
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silences this harmless noise.
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"""
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try:
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import ssl
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from gevent import get_hub
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hub = get_hub()
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suppress = (SystemExit, ssl.SSLZeroReturnError, ssl.SSLError)
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for exc in suppress:
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if exc not in hub.NOT_ERROR:
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hub.NOT_ERROR = hub.NOT_ERROR + (exc,)
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except Exception:
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pass
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