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cpython/Lib/test/test_concurrent_futures
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Miss Islington (bot) 6754a507c5
[3.14] gh-132969: Fix error/hang when shutdown(wait=False) and task exited abnormally (GH-133222) (GH-135344) 
gh-132969:  Fix error/hang when shutdown(wait=False) and task exited abnormally (GH-133222)

When shutdown is called with wait=False, the executor thread keeps running
even after the ProcessPoolExecutor's state is reset. The executor then tries
to replenish the worker processes pool resulting in an error and a potential hang
when it comes across a worker that has died. Fixed the issue by having
_adjust_process_count() return without doing anything if the ProcessPoolExecutor's
state has been reset.

Added unit tests to validate two scenarios:
max_workers < num_tasks (exception)
max_workers > num_tasks (exception + hang)
(cherry picked from commit 598aa7cc98)

Co-authored-by: Ajay Kamdar <140011370+ogbiggles@users.noreply.github.com>
2025-06-13 15:49:54 +02:00
..
__init__.py gh-71052: fix test_concurrent_futures wasi regression. (#115923) 2024-02-26 00:02:56 +00:00
executor.py gh-132063: ensure that ProcessPoolExecutor does not swallow falsey exceptions (#132129) 2025-04-08 15:11:13 +00:00
test_as_completed.py gh-109565: Fix concurrent.futures test_future_times_out() (#109949) 2023-09-27 08:51:44 +00:00
test_deadlock.py gh-132097: skip tests raising an explicit SIGSEV when UB sanitizer is on (#132398) 2025-04-12 09:18:58 +02:00
test_future.py
test_init.py gh-117657: Skip test when running under TSan (GH-121549) 2024-07-09 14:12:45 -07:00
test_interpreter_pool.py [3.14] gh-134939: Add the concurrent.interpreters Module (gh-135414) 2025-06-12 08:19:26 -06:00
test_process_pool.py gh-131152: Remove unused imports from tests (#131153) 2025-03-13 10:55:23 +01:00
test_shutdown.py [3.14] gh-132969: Fix error/hang when shutdown(wait=False) and task exited abnormally (GH-133222) (GH-135344) 2025-06-13 15:49:54 +02:00
test_thread_pool.py gh-88110: Clear concurrent.futures.thread._threads_queues after fork to avoid joining parent process' threads (GH-126098) 2024-11-22 18:20:34 +02:00
test_wait.py gh-128364: Fix flaky test_concurrent_futures.test_wait tests (gh-130742) 2025-03-06 12:30:58 -05:00
util.py gh-128364: Fix flaky test_concurrent_futures.test_wait tests (gh-130742) 2025-03-06 12:30:58 -05:00