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https://issues.apache.org/jira/browse/FLINK-38118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18008183#comment-18008183
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shilei-ly commented on FLINK-38118:
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Hi, [~fcsaky] thanks for your comment. I agree with you that this is more like
a new feature. I will create a new future discussion on jira after considering
different modes (yarn, k8s, standalone).
In addition, I think if application mode does not support attach mode, the *-d*
parameter in flink run -h or the *execution.attached* parameter in the user
documentation should add additional descriptions to tell users that the
application mode does not support attach mode. Because the per-job mode has
been removed, this parameter is easy to confuse new users when they submit job
to yarn. What do you think?
> The execution.attached=true parameter does not take effect in application mode
> ------------------------------------------------------------------------------
>
> Key: FLINK-38118
> URL: https://issues.apache.org/jira/browse/FLINK-38118
> Project: Flink
> Issue Type: Bug
> Components: Client / Job Submission
> Affects Versions: 2.0.0, 1.20.2
> Reporter: shilei-ly
> Priority: Major
>
> In FLINK-35625, flink merged the per-job mode and application mode.
> Currently, flink1.20 and flink2.x only support application mode, but in
> application mode, the *execution.attached=true* and
> *execution.shutdown-on-attached-exit=true* parameter has no effect. I think
> application mode should support these parameters, because attach mode is very
> useful in some scenarios, such as using attach mode in dolphinscheduler
> scheduler to monitor flink cluster status.
> The functions of these parameters are as follows:
> 1. After submitting the task through {*}flink run -Dexecution.attached=true
> xxx.jar{*}, the flink client process keeps running until the application
> cluster stops.
> 2. After submitting the task through {*}flink run -Dexecution.attached=true
> -Dexecution.shutdown-on-attached-exit=true xxx.jar{*}, the flink client can
> control the life cycle of the application cluster. When ctrl + c stops the
> flink client process, the application cluster should stop all jobs and stop
> the cluster.
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