[jira] [Commented] (KAFKA-12887) Do not trigger user-customized ExceptionalHandler for RTE

["Ian Corne (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-12887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17601779#comment-17601779 ] 

Ian Corne commented on KAFKA-12887:
-----------------------------------

Why wouldn't you allow the user to handle this?

> Do not trigger user-customized ExceptionalHandler for RTE
> ---------------------------------------------------------
>
>                 Key: KAFKA-12887
>                 URL: https://issues.apache.org/jira/browse/KAFKA-12887
>             Project: Kafka
>          Issue Type: Improvement
>          Components: streams
>            Reporter: Guozhang Wang
>            Assignee: Josep Prat
>            Priority: Major
>             Fix For: 3.1.0
>
>
> Today in StreamThread we have a try-catch block that captures all {{Throwable e}} and then triggers {{this.streamsUncaughtExceptionHandler.accept(e)}}. However, there are possible RTEs such as IllegalState/IllegalArgument exceptions which are usually caused by bugs, etc. In such cases we should not let users to decide what to do with these exceptions, but should let Streams itself to enforce the decision, e.g. in the IllegalState/IllegalArgument we should fail fast to notify the potential error.



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