multiprocessing Queue leaks a file descriptor associated with the pipe writer (#33081 still a problem)
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3.10
3.7 (EOL)
3.8 (EOL)
3.9 (EOL)
stdlib
topic-multiprocessing
type-bug
- 主要语言
- Python
- 星标
- 77.2k
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- PR 合并指标
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描述
| BPO | 42752 |
|---|---|
| Nosy | @pitrou, @mattip, @graingert, @applio |
| Files |
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 2020-12-26.23:03:41.032>
labels = ['3.8', '3.9', '3.10', 'performance', '3.7', 'library']
title = 'multiprocessing Queue leaks a file descriptor associated with the pipe writer (#33081 still a problem)'
updated_at = <Date 2022-02-21.11:50:18.407>
user = 'https://bugs.python.org/crazycasta'
bugs.python.org fields:
activity = <Date 2022-02-21.11:50:18.407>
actor = 'vstinner'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2020-12-26.23:03:41.032>
creator = 'crazycasta'
dependencies = []
files = ['49701', '49713']
hgrepos = []
issue_num = 42752
keywords = ['patch']
message_count = 5.0
messages = ['383832', '384149', '384151', '384737', '388632']
nosy_count = 5.0
nosy_names = ['pitrou', 'mattip', 'graingert', 'crazycasta', 'davin']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'resource usage'
url = 'https://bugs.python.org/issue42752'
versions = ['Python 3.6', 'Python 3.7', 'Python 3.8', 'Python 3.9', 'Python 3.10']
Linked PRs
- gh-112900
贡献指南
从这里开始
- 先读完整个 Issue,再读项目的贡献指南。
- 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
- Fork 仓库,在一个分支上完成修改。
- 提交 Pull Request,并在描述里引用这个 Issue 编号。
调研方向
先从上传的 test_queue.py 和 queue_close_write.patch 开始,然后检查与文件描述符清理相关的 multiprocessing Queue 管道写入器行为。运行提供的 Queue 测试,并将现有行为与链接的 PR gh-112900 进行比较。当 reproducer 不再显示泄漏的管道写入器描述符,并且相关测试通过时,即视为完成。
由索引模型根据 Issue 内容生成。
评估
- 技术栈
- python
- 领域
- operating-systems
- Issue 类型
- 缺陷
- 难度
- 4/5
- 预计耗时
- 3-5 天
- 活跃度
- 停滞
- 描述清晰度
- 基本清楚
- 新手友好度
- 25/100