Memory Leak in multiprocessing.Pool()

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
25/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
python
Domain
backend

Research direction

Start by running the reproduction script in User's.py and reviewing the multiprocessing.Pool entry point. Compare the observed behavior with the linked BPO issue 39531 and Python 3.7 context; done means identifying and fixing the reported memory leak with a regression test demonstrating the corrected behavior.

Written by the indexing model from the issue text.

Description

3.7 (EOL) stdlib topic-multiprocessing type-bug
BPO 39531
Nosy @pitrou, @applio
Files
  • User's.py: script to reproduce the issue
    		•

    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 2020-02-02.19:19:26.803>
labels = ['3.7', 'type-bug', 'library']
title = 'Memory Leak in multiprocessing.Pool()'
updated_at = <Date 2020-02-09.20:16:24.365>
user = 'https://bugs.python.org/EMO'

    bugs.python.org fields:

    activity = <Date 2020-02-09.20:16:24.365>
actor = 'terry.reedy'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2020-02-02.19:19:26.803>
creator = 'EMO'
dependencies = []
files = ['48877']
hgrepos = []
issue_num = 39531
keywords = []
message_count = 1.0
messages = ['361253']
nosy_count = 3.0
nosy_names = ['pitrou', 'davin', 'EMO']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue39531'
versions = ['Python 3.7']

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