apache/dolphinscheduler

[Feature][Workflow] Introduce catchup mechanism for workflow

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#11,861 创建于 2022年9月8日

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 (4 评论) (1 反应) (0 负责人)Java (11,659 star) (4,324 fork)batch import
backendfeaturehelp wanted

描述

Search before asking

  • I had searched in the issues and found no similar feature requirement.

Description

Introduce catchup mechanism for workflow. Just like the way airflow do in https://airflow.apache.org/docs/apache-airflow/stable/dag-run.html#catchup

Use case

aboved.

Related issues

No response

Are you willing to submit a PR?

  • Yes I am willing to submit a PR!

Code of Conduct

贡献者指南

技术栈
java
领域
backend
议题类型
feature
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。
4
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。
over 1 week
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。
unclear
前置要求
Familiarity with Apache DolphinScheduler codebaseUnderstanding of workflow scheduling conceptsJava programmingSQL 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。
25
研究方向
Study Airflow's catchup mechanism (https://airflow.apache.org/docs/apache airflow/stable/dag run.html#catchup). Analyze DolphinScheduler's workflow scheduling code, particularly the scheduler and workflow instance creation logic. Identify where catchup would fit, considering time based scheduling. Review database schema for workflow instances to support backfilling runs.