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https://issues.apache.org/jira/browse/KAFKA-9636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17062223#comment-17062223
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John Roesler commented on KAFKA-9636:
-------------------------------------
NP, and thanks again for your assistance and very clear and thorough bug
reports.
That's not a bad idea about the serdes. I've had a similar thought while
reflecting on how to make the internals more efficient by avoiding copying and
object allocation... So, maybe that's two reasons now to consider the idea
further.
> Simple join of two KTables fails
> --------------------------------
>
> Key: KAFKA-9636
> URL: https://issues.apache.org/jira/browse/KAFKA-9636
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 2.4.1
> Reporter: Paul Snively
> Assignee: John Roesler
> Priority: Major
> Attachments: merge_issue.zip
>
>
> Attempting to join two KTables yields a `Topology` that, when tested with
> `TopologyTestDriver` by adding records to the two `TestInputTopic`s, results
> in an empty `TestOutputTopic`.
> I'm attaching a very small reproduction. The code is in Scala. The project is
> therefore an "sbt" project. You can reproduce the results from your shell
> with `sbt test`. The failure output will include the `describe` of the
> `Topology` in question.
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