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A serializer (key: org.apache.kafka.common.serialization.StringSerializer / value: myapps.PersonSerializer) is not compatible to the actual key or value type (key type: unknown because key is null / value type: java.lang.String). Change the default Serdes in StreamConfig or provide correct Serdes via method parameters. about kafka-streams-custom-seder HOT 3 CLOSED

davidcorral94 avatar davidcorral94 commented on July 21, 2024
A serializer (key: org.apache.kafka.common.serialization.StringSerializer / value: myapps.PersonSerializer) is not compatible to the actual key or value type (key type: unknown because key is null / value type: java.lang.String). Change the default Serdes in StreamConfig or provide correct Serdes via method parameters.

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Comments (3)

jay999123 avatar jay999123 commented on July 21, 2024 1

thanks. It's working. My eclipse is not taking the changes.

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DavidCorral94 avatar DavidCorral94 commented on July 21, 2024

Hey @JanardhanVarikuti, I just made a fresh start:

  1. I cloned the repo
  2. I downloaded the latest Kafka version (2.1.0)
  3. I updated the Kafka version in the pow.xml
  4. I did the steps in the README.md

It worked perfectly. Can you reproduce these steps and let me know? It looks like a problem or misconfiguration within your Kafka or Zookeeper servers.

Regards!

3cd7461761060371bfdd8cf687fcc109

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jay999123 avatar jay999123 commented on July 21, 2024

Thanks for the quick reply.Let me check with your steps.

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