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https://issues.apache.org/jira/browse/KAFKA-6578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16372221#comment-16372221
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ASF GitHub Bot commented on KAFKA-6578:
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rhauch opened a new pull request #4609: KAFKA-6578: Changed the Connect
distributed and standalone main method to log all exceptions
URL: https://github.com/apache/kafka/pull/4609
Any exception thrown by calls within a `main()` method are not logged unless
explicitly done so. This change simply adds a try-catch block around most of
the content of the distributed and standalone `main()` methods.
### Committer Checklist (excluded from commit message)
- [ ] Verify design and implementation
- [ ] Verify test coverage and CI build status
- [ ] Verify documentation (including upgrade notes)
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> Connect distributed and standalone worker 'main()' methods should catch and
> log all exceptions
> ----------------------------------------------------------------------------------------------
>
> Key: KAFKA-6578
> URL: https://issues.apache.org/jira/browse/KAFKA-6578
> Project: Kafka
> Issue Type: Bug
> Components: KafkaConnect
> Affects Versions: 0.10.0.0
> Reporter: Randall Hauch
> Priority: Critical
>
> Currently, the {{main}} methods in {{ConnectDistributed}} and
> {{ConnectStandalone}} do not catch and log most of the potential exceptions.
> That means that when such an exception does occur, Java does terminate the
> process and report it to stderr, but does not log the exception in the log.
> We should add a try block around most of the existing code in the main method
> to catch any Throwable exception, log it, and either rethrow it or explicitly
> exit with a non-zero return code.
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