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https://issues.apache.org/jira/browse/KAFKA-7634?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16689061#comment-16689061
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Guozhang Wang commented on KAFKA-7634:
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Hi [~efeller] could you try to upgrade to newer version of Kafka? I'd suggest
you do that and see if the issue still exist.
And you can also use the {{TopologyTestDriver}} under streams:test-utils in the
new versions to write unit test easily: you do not need to start up a broker
etc as the test driver will mimic the whole behavior, details here:
https://kafka.apache.org/documentation/streams/developer-guide/testing.html
If the issue can be reproduced with the unit test using the test driver under
the latest version, could you share the test code with me so that I can look
further into this.
> Punctuate not being called with merge() and/or outerJoin()
> ----------------------------------------------------------
>
> Key: KAFKA-7634
> URL: https://issues.apache.org/jira/browse/KAFKA-7634
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 0.11.0.3
> Reporter: Eugen Feller
> Priority: Major
>
> Hi all,
> I am using the Processor API and having trouble to get Kafka streams
> v0.11.0.3 call the punctuate() function after a merge() and/or outerJoin().
> Specifically, I am having a topology where I am doing flatMapValues() ->
> merge() and/or outerJoin -> transform(). If I dont call merge() and/or
> outerJoin() before transform(), punctuate is being called as expected.
> Thank you very much in advance for your help.
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