multiprocessing.pool.Pool.apply block infinitely when stressed while using maxtasksperchild
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3.7 (EOL)
stdlib
topic-multiprocessing
type-bug
- 主要语言
- Python
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描述
| BPO | 47159 |
|---|---|
| Nosy | @pitrou, @applio, @harsh8398 |
| 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 2022-03-30.09:53:14.324>
labels = ['3.7', 'type-bug', 'library']
title = 'multiprocessing.pool.Pool.apply block infinitely when stressed while using maxtasksperchild'
updated_at = <Date 2022-03-30.09:53:14.324>
user = 'https://github.com/harsh8398'
bugs.python.org fields:
activity = <Date 2022-03-30.09:53:14.324>
actor = 'harsh8398'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2022-03-30.09:53:14.324>
creator = 'harsh8398'
dependencies = []
files = ['50706']
hgrepos = []
issue_num = 47159
keywords = []
message_count = 1.0
messages = ['416331']
nosy_count = 3.0
nosy_names = ['pitrou', 'davin', 'harsh8398']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue47159'
versions = ['Python 3.7']
贡献指南
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- 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
首先运行附带的 example.py，同时在设置 maxtasksperchild 的情况下对 multiprocessing.pool.Pool.apply 施加压力，然后检查相关的 multiprocessing pool 行为。在这些条件下 reproducer 不再无限期阻塞，并在适当位置添加回归检查，即表示完成。
由索引模型根据 Issue 内容生成。
评估
- 技术栈
- python
- 领域
- backend
- 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