[jira] [Created] (KAFKA-20547) Streams produces duplicates with EOS_v2

[Uladzislau Blok (Jira)]

Uladzislau Blok created KAFKA-20547:
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             Summary: Streams produces duplicates with EOS_v2
                 Key: KAFKA-20547
                 URL: https://issues.apache.org/jira/browse/KAFKA-20547
             Project: Kafka
          Issue Type: Bug
          Components: streams
    Affects Versions: 3.9.1
            Reporter: Uladzislau Blok
         Attachments: Untitled-2026-04-28-1158.excalidraw.png

Hello All,
I saw an issue when Kafka Streams processed same input twice resulting in 
duplicated output, what breaks EOS

!Untitled-2026-04-28-1158.excalidraw.png!



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