[jira] [Created] (FLINK-12176) Unify JobGraph creation in CliFrontend

[Shang Yuanchun (Jira)]

TisonKun created FLINK-12176:
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             Summary: 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
             Fix For: 1.9.0


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 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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