banboosgithub opened a new issue #4712:
URL: https://github.com/apache/incubator-dolphinscheduler/issues/4712
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**Describe the question**
A clear and concise description of what the question is.
If a task was submitted to yarn, such as spark, how to cancel the app when
cancel the task by UI ?
org.apache.dolphinscheduler.server.worker.task.AbstractCommandExecutor#cancelApplication
dose not implement this logic.
**Which version of DolphinScheduler:**
-[1.1.0-preview]
**Additional context**
Add any other context about the problem here.
**Requirement or improvement**
- Please describe about your requirements or improvement suggestions.
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