rickchengx commented on PR #12118: URL: https://github.com/apache/dolphinscheduler/pull/12118#issuecomment-1297926431
> 1.The pid will be considered modified or suspended, making it impossible to kill the thread. This happens often. 2.The pid in the pid file is inconsistent with the actual process number @rickchengx Hi, @hstdream , thanks for your comment. I got your concern. Actually, the `pid-file` method is commonly used on linux. For example, Apache Spark `spark-daemon.sh` also use `pid-file` to check the status of process and kill the process as below: https://github.com/apache/spark/blob/a01b86f9d4651562f960745fc621d710ae9295cc/sbin/spark-daemon.sh#L161-L173 <img width="1279" alt="image" src="https://user-images.githubusercontent.com/38122586/199143574-e836abf9-b4ec-4f44-ac4d-e8ee7bb717a5.png";> And I think the location of `pid-file` is in $DOLPHINSCHEDULER_HOME, which is a directory that only admin can attach. It cannot be easily modified. WDYT cc @caishunfeng @SbloodyS -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
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