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https://issues.apache.org/jira/browse/FLINK-20382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17239575#comment-17239575
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Till Rohrmann commented on FLINK-20382:
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Thanks for reporting this issue [~becket_qin]. This is indeed a good finding. I
will fix it.
> Exception thrown from JobMaster.startScheduling() may be ignored.
> -----------------------------------------------------------------
>
> Key: FLINK-20382
> URL: https://issues.apache.org/jira/browse/FLINK-20382
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Coordination
> Affects Versions: 1.11.2
> Reporter: Jiangjie Qin
> Assignee: Till Rohrmann
> Priority: Critical
> Fix For: 1.12.0, 1.11.3
>
>
> Currently {{JobMaster.resetAndStartScheduler()}} invokes
> {{startScheduling()}} in a {{thenRun}} clause without {{exceptionally}} or
> {{handle}} to handle exceptions. The job may hang if an exception is thrown
> when starting scheduling, e.g. failed to create operator coordinators.
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