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https://issues.apache.org/jira/browse/FLINK-12176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16859825#comment-16859825
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Jeff Zhang commented on FLINK-12176:
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[~Tison] I drafted a proposal for flink client api enhancement which seems
related with this ticket
[https://docs.google.com/document/d/1VavBrYn8vJeZs-Mhu5VzKO6xrWCF40aY0nlQ_UVVTRg/edit?usp=sharing]
And here's the discussion thread in community
[https://lists.apache.org/thread.html/ce99cba4a10b9dc40eb729d39910f315ae41d80ec74f09a356c73938@%3Cdev.flink.apache.org%3E]
> Unify JobGraph creation in CliFrontend
> --------------------------------------
>
> Key: FLINK-12176
> URL: https://issues.apache.org/jira/browse/FLINK-12176
> Project: Flink
> Issue Type: Improvement
> Components: Command Line Client
> Affects Versions: 1.9.0
> Reporter: TisonKun
> Assignee: TisonKun
> Priority: Major
>
> Currently, we create {{JobGraph}} by the following process
> * if the cluster start in job mode, we create {{JobGraph}} by
> {{PackagedProgramUtils#createJobGraph}} and deploy a job cluster
> * if the cluster start in session mode, we create {{JobGraph}} and submit it
> by {{CliFrontend#executeProgram}}, which internally the same as above but
> using {{ContextEnvironment}} instead of {{OptimizerPlanEnvironment}}.
> {{ContextEnvironment}} not only create the job graph but also submit it.
> However, the processes of {{JobGraph}} creation in job mode and session mode
> are similar. That means, we can unify the process by always create
> {{JobGraph}} by {{PackagedProgramUtils#createJobGraph}}. And,
> * in job mode, deploy job cluster with the {{JobGraph}}
> * in session mode, submit the {{JobGraph}} to the session cluster
> From a higher view, it is helpful for a common view of job submission in both
> job and session mode and give opportunities to refactor legacy client codes.
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