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https://issues.apache.org/jira/browse/FLINK-26861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17512260#comment-17512260
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chenzihao commented on FLINK-26861:
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Hi, [~kkl0u]. Can you help to confirm this?
cc: [~gaoyunhaii], [~MartijnVisser]
> Log cannot be printed completely when use System.exit(1)
> --------------------------------------------------------
>
> Key: FLINK-26861
> URL: https://issues.apache.org/jira/browse/FLINK-26861
> Project: Flink
> Issue Type: Bug
> Components: Client / Job Submission, Deployment / YARN
> Affects Versions: 1.12.2
> Reporter: chenzihao
> Priority: Major
> Attachments: image-2022-03-25-16-35-27-550.png,
> image-2022-03-25-16-35-39-531.png, image-2022-03-25-16-35-46-528.png
>
>
> When I use Yarn-Application mode to submit Flink Job and there exist an
> exception expected, but I cannot get it in jobmanager log. And I only get the
> exit code 1 in yarn log.
> !image-2022-03-25-16-35-27-550.png!
> h2. Relative code
> {code:java}
> // YarnApplicationClusterEntryPoint#main
> try {
> program = getPackagedProgram(configuration);
> } catch (Exception e) {
> LOG.error("Could not create application program.", e);
> Thread.sleep(10); // add this for test
> System.exit(1);
> }
> {code}
> h2. Log info
> * The ERROR log doesn't exist before Thread.sleep.
> !image-2022-03-25-16-35-39-531.png!
> * The ERROR log exists after Thread.sleep.
> !image-2022-03-25-16-35-46-528.png!
> h2. Reason
> System.exit() terminates the currently running Java Virtual Machine too fast
> to print the ERROR log.
> h2. Improvement
> I think we can print the ERROR log to jobmanager.err before call
> System.exit(1) so that we can get the exception info.
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