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https://issues.apache.org/jira/browse/KAFKA-5949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16184864#comment-16184864
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ASF GitHub Bot commented on KAFKA-5949:
---------------------------------------

GitHub user mjsax opened a pull request:

    https://github.com/apache/kafka/pull/3986

    KAFKA-5949: Follow-up after latest KIP-161 changes

     - compare KAFKA-5958

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/mjsax/kafka 
kafka-5949-exceptions-user-callbacks-KIP-161-follow-up

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/kafka/pull/3986.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #3986
    
----
commit 95ebc1ef168b35fe3c7e1e23201114fbafee12bb
Author: Matthias J. Sax <matth...@confluent.io>
Date:   2017-09-28T20:58:45Z

    KAFKA-5949: Follow-up after latest KIP-161 changes
     - compare KAFKA-5958

----


> User Callback Exceptions need to be handled properly
> ----------------------------------------------------
>
>                 Key: KAFKA-5949
>                 URL: https://issues.apache.org/jira/browse/KAFKA-5949
>             Project: Kafka
>          Issue Type: Sub-task
>          Components: streams
>            Reporter: Matthias J. Sax
>            Assignee: Matthias J. Sax
>             Fix For: 1.0.0
>
>
> In Streams, we allow to register multiple user callbacks. We need to handle 
> those exceptions gracefully, by catching and wrapping with a StreamsException.
> - TimestampExtractor
> - DeserializationHandler
> - StateRestoreListener



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