[issue35424] multiprocessing.Pool: emit ResourceWarning

STINNER Victor added the comment: The first implementation of my PR also emitted ResourceWarning when .join() hasn't been called, but the merged PR only emit a warning if .close() and .terminated() have not been called: if the pool is still running. -- resolution: -> fixed stage:

[issue35424] multiprocessing.Pool: emit ResourceWarning

STINNER Victor added the comment: New changeset 9a8d1d7562b11969034b92217fe66aab7a951fb6 by Victor Stinner in branch 'master': bpo-35424: emit ResourceWarning at multiprocessing.Pool destruction (GH-10974) https://github.com/python/cpython/commit/9a8d1d7562b11969034b92217fe66aab7a951fb6

[issue35424] multiprocessing.Pool: emit ResourceWarning

STINNER Victor added the comment: New changeset c74e7c48ba4f8437d4c8b402098b8cefc33a28a9 by Victor Stinner (Miss Islington (bot)) in branch '3.7': bpo-35424: Fix test_multiprocessing_main_handling (GH-11223) (GH-11227)

[issue35424] multiprocessing.Pool: emit ResourceWarning

Change by miss-islington : -- pull_requests: +10462 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue35424] multiprocessing.Pool: emit ResourceWarning

STINNER Victor added the comment: New changeset 6cdce3ddef805e11d75142f3e20e23c3fe21fdf4 by Victor Stinner in branch 'master': bpo-35424: Fix test_multiprocessing_main_handling (GH-11223) https://github.com/python/cpython/commit/6cdce3ddef805e11d75142f3e20e23c3fe21fdf4 --

[issue35424] multiprocessing.Pool: emit ResourceWarning

Change by STINNER Victor : -- pull_requests: +10458 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue35424] multiprocessing.Pool: emit ResourceWarning

STINNER Victor added the comment: See this discussion: [Python-Dev] Usage of the multiprocessing API and object lifetime https://mail.python.org/pipermail/python-dev/2018-December/155946.html -- ___ Python tracker

[issue35424] multiprocessing.Pool: emit ResourceWarning

miss-islington added the comment: New changeset e44b5b2afa6fe2966d8caff45e36c0980413bb86 by Miss Islington (bot) in branch '3.6': bpo-35424: test_multiprocessing: join 3 pools (GH-10986) https://github.com/python/cpython/commit/e44b5b2afa6fe2966d8caff45e36c0980413bb86 --

[issue35424] multiprocessing.Pool: emit ResourceWarning

miss-islington added the comment: New changeset b7c67c4d510a7a72a35983cc168dbb2ce796cb8c by Miss Islington (bot) in branch '3.7': bpo-35424: test_multiprocessing: join 3 pools (GH-10986) https://github.com/python/cpython/commit/b7c67c4d510a7a72a35983cc168dbb2ce796cb8c -- nosy:

[issue35424] multiprocessing.Pool: emit ResourceWarning

Change by miss-islington : -- pull_requests: +10228 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue35424] multiprocessing.Pool: emit ResourceWarning

Change by miss-islington : -- pull_requests: +10229 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue35424] multiprocessing.Pool: emit ResourceWarning

STINNER Victor added the comment: New changeset 388c8c208d9d09bd28289c1e4776b947d4d0f0f0 by Victor Stinner in branch 'master': bpo-35424: test_multiprocessing: join 3 pools (GH-10986) https://github.com/python/cpython/commit/388c8c208d9d09bd28289c1e4776b947d4d0f0f0 --

[issue35424] multiprocessing.Pool: emit ResourceWarning

STINNER Victor added the comment: While testing PR 10974, I found two tests which emits ResourceWarning. I wrote 10986 to fix them. -- ___ Python tracker ___

[issue35424] multiprocessing.Pool: emit ResourceWarning

Change by STINNER Victor : -- pull_requests: +10227 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue35424] multiprocessing.Pool: emit ResourceWarning

Change by STINNER Victor : -- keywords: +patch pull_requests: +10216 stage: -> patch review ___ Python tracker ___ ___

[issue35424] multiprocessing.Pool: emit ResourceWarning

New submission from STINNER Victor : Since 2 years, I'm fixing frequently "dangling thread" and "dangling process" warnings on buildbots. These bugs are really hard to reproduce. They usually require to get access to a specific buildbot, simulate a specific workload, and get the proper