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https://issues.apache.org/jira/browse/FLINK-15998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17036464#comment-17036464
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Konstantin Knauf commented on FLINK-15998:
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[~aljoscha] 

>From my point of view an "application cluster" is a cluster that is dedicated 
>to one application (either single job or multiple; currently only single job) 
>that runs its main-method in the cluster. Currently, this is the case for the 
>per-job cluster in the Kubernetes/Standalone case, but not for YARN. 

Hence, it would not be reverting the change but make it more precise (by 
excluding per job clusters, where the jobgraph is built on the client side) and 
making application clusters more flexible by allowing the execution of multiple 
jobs.

> Revert rename of "Job Cluster" to "Application Cluster" in documentation
> ------------------------------------------------------------------------
>
>                 Key: FLINK-15998
>                 URL: https://issues.apache.org/jira/browse/FLINK-15998
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Documentation
>    Affects Versions: 1.10.0, 1.11.0
>            Reporter: Aljoscha Krettek
>            Assignee: Aljoscha Krettek
>            Priority: Major
>             Fix For: 1.10.1, 1.11.0
>
>
> [~kkl0u] and I are working on an upcoming FLIP that will propose a "real" 
> application mode. The gist of it will be that an application cluster is 
> roughly responsible for all the jobs that are executed in a user {{main()}} 
> method. Each individual invocation of {{execute()}} in said {{main()}} 
> function would launch a job on the aforementioned application cluster. The 
> {{main()}} method would run inside the cluster (or not, that's up for 
> discussion).
>  FLINK-12625 introduced a glossary that describes what was previously known 
> as a "Job Cluster" as an "Application Cluster". We think that in the future 
> users will have both: per-job clusters and application clusters. We therefore 
> think that we should describe our current per-job clusters as Per-job 
> clusters (or job clusters) in the glossary and documentation and reserve the 
> name application cluster for the "real" forthcoming application clusters.
> This would also render FLINK-12885 outdated.



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