multiprocessing.util._afterfork_registry leak in threaded environment

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
20/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
python
Domain
backend, performance

Research direction

Start by reviewing the linked python/cpython#13986 pull request and the attached bug.py and bug3.py reproductions. Use those materials to understand the threaded-environment leak and determine what tests or cleanup behavior establish that the issue is fixed.

Written by the indexing model from the issue text.

Description

3.9 (EOL) stdlib topic-multiprocessing type-bug
BPO 26180
Nosy @terryjreedy, @nirs, @jdemeyer, @applio
PRs
  • python/cpython#13986
    		•
    Files
  • bug.py
  • bug3.py
    		•

    Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = None
closed_at = None
created_at = <Date 2016-01-22.15:24:46.852>
labels = ['library', '3.9', 'performance']
title = 'multiprocessing.util._afterfork_registry leak in threaded environment'
updated_at = <Date 2019-06-14.07:05:58.650>
user = 'https://bugs.python.org/mzamazal'

    bugs.python.org fields:

    activity = <Date 2019-06-14.07:05:58.650>
actor = 'mzamazal'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2016-01-22.15:24:46.852>
creator = 'mzamazal'
dependencies = []
files = ['41690', '41706']
hgrepos = []
issue_num = 26180
keywords = ['patch']
message_count = 6.0
messages = ['258816', '258850', '258896', '345473', '345524', '345561']
nosy_count = 5.0
nosy_names = ['terry.reedy', 'nirs', 'jdemeyer', 'davin', 'mzamazal']
pr_nums = ['13986']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'resource usage'
url = 'https://bugs.python.org/issue26180'
versions = ['Python 3.9']

    Dominant language
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