vmware/pyvmomi

Pickling pyvmomi class using multiprocessing

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#817 创建于 2019年7月23日

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 (2 评论) (0 反应) (0 负责人)Python (2,141 star) (807 fork)batch import
help wantedquestion

描述

Hi folk, I try do use python multiprocessing module to parallelize some data gathering from vcenter. Unfortunately i have faced with following problem during starting parallel processes:

_pickle.PicklingError: Can't pickle <class 'pyVmomi.VmomiSupport.vim.VirtualMachine'>: attribute lookup vim.VirtualMachine on pyVmomi.VmomiSupport failed

So the question is, it's that true, that pymomi doesn't support "right pickling"? Thanks, and appreciate.

贡献者指南

技术栈
python
领域
backendapi
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Python picklingmultiprocessingpyvmomi basics
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
45
研究方向
The issue involves a PicklingError when using multiprocessing with pyvmomi classes like vim.VirtualMachine. To resolve, one could implement custom getstate and setstate methods in the relevant classes. Review the pyVmomi source code, especially VmomiSupport.py, to understand the class structure and identify where to add pickling support. There are no existing PRs or comments suggesting a solution; maintainers should discuss the best approach.