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https://issues.apache.org/jira/browse/FLINK-8785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16404597#comment-16404597
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Chesnay Schepler commented on FLINK-8785:
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[~wind_ljy] Handlers are only allowed to throw \{{RestHandlerException}}s, to
provide proper error messages and error codes.
> JobSubmitHandler does not handle JobSubmissionExceptions
> --------------------------------------------------------
>
> Key: FLINK-8785
> URL: https://issues.apache.org/jira/browse/FLINK-8785
> Project: Flink
> Issue Type: Bug
> Components: Job-Submission, JobManager, REST
> Affects Versions: 1.5.0
> Reporter: Chesnay Schepler
> Priority: Critical
> Labels: flip-6
>
> If the job submission, i.e. {{DispatcherGateway#submitJob}} fails with a
> {{JobSubmissionException}} the {{JobSubmissionHandler}} returns "Internal
> server error" instead of signaling the failed job submission.
> This can for example occur if the transmitted execution graph is faulty, as
> tested by the \{{JobSubmissionFailsITCase}}.
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