apache/dolphinscheduler

[Feature][Task - kill task] Support user to config kill signal type of killing process/task

Open

#17,106 创建于 2025年4月3日

在 GitHub 查看
 (3 评论) (0 反应) (1 负责人)Java (11,659 star) (4,324 fork)batch import
UIbackendfeaturehelp wanted

描述

Search before asking

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

Description

I noticed that if user try to kill the task/process, for example, a Java task, dophin scheduler will send "kill -9" which is "SIGKILL" signal to java worker process.

Would you please make the kill signal be configable? Becasue in some situation, we want worker process to send "I am killed" message to specific observer application or do something else to clean resource when user try to kill task/process via dophin scheduler. And if the worker process is killed by ""SIGKILL" signal, there is no chance for "JVM runtime hook" to do something when the process needed to exit.

Thererfore, would you please make the kill signal be configable? Thanks for your help.

Use case

User can be config the kill signal type of specific work process/task.

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
backenddevops
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。
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。
half day
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。
blocked
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
JavaLinux process signalsDolphinScheduler configuration
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。
40
研究方向
Investigate how DolphinScheduler kills tasks (e.g., in `ProcessTask` or `YarnTaskExecutor`). Identify where the signal is hardcoded (likely `kill 9`). Propose adding a configuration property like `task.kill.signal` in `application.yaml`. Consider allowed values (e.g., SIGTERM, SIGKILL). Ensure backward compatibility (default SIGKILL). Update relevant classes to read the property and use the specified signal. Test with different task types.