Hacktoberfest 2026：维护者为十月标记出来的 issue，仍然开放、适合新手。 浏览 Hacktoberfest issue

ENH: Preserve greedy execution with provisional tasks

未关闭
#985 0 条评论 0 个 reaction 已指派 0 人 在 GitHub 查看

还没有人认领这个 Issue。

评估

难度
5/5
预计耗时
一周以上
新手友好度
45/100
Issue 类型
功能
描述清晰度
基本清楚
活跃度
活跃
技术栈
python
领域
backend

调研方向

Read provisional.py and provisional_utils.py to trace provisional task collection, identity validation, recreate_dag, and scheduler rebuilding. Define the transaction boundary and failure path so an error preserves the old DAG and scheduler while execution continues with that DAG.

由索引模型根据 Issue 内容生成。

描述

enhancement
Is your feature request related to a problem?

When provisional task creation fails, a new DAG cannot be created and therefore execution cannot continue. The pytask session will stop.

Relevant paths include:

  • provisional.py: failures while collecting generated tasks, running pytask_collect_modify_tasks, or validating task identities.
  • provisional_utils.py: failures in recreate_dag, including dependency resolution, cycle detection, duplicate products, or scheduler rebuilding.
  • recreate_dag also assigns session.dag before rebuilding the scheduler. If scheduler rebuilding fails, the session may contain a new DAG paired with an old scheduler.
Describe the solution you'd like

A better behavior would be to handle the whole process like a transaction and when any of the steps of registering these new provisional tasks fails, they are collected as an execution error and execution continues with the old DAG.

主要语言
Python
星标
146
派生
14
平均合并
3 天 16 小时
30 天内合并 PR
34

贡献指南

这个仓库没有索引到贡献指南

从这里开始

  1. 先读完整个 Issue，再读项目的贡献指南。
  2. 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
  3. Fork 仓库，在一个分支上完成修改。
  4. 提交 Pull Request，并在描述里引用这个 Issue 编号。

pytask-dev/pytask 的其他 Issue

查看 pytask-dev/pytask 的全部 Issue

相似的 Issue

更多 Python Issue

把新 issue 发到你的邮箱

精选适合新手参与的 GitHub issue 摘要。