Status

Current state: Under Discussion "Voting"

Discussion thread: https://lists.apache.org/thread/tbhmkf44jhjf8lqmo7w2whynbgttf1o6

Voting thread: https://lists.apache.org/thread/z6v4qyhgydl1tj0s3ycn6v4hv408gx2t

PR: https://github.com/apache/kafka/pull/12545

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• For built-in StringDeserializer and ByteBufferDeserializer, we will do the deserialization directly on with the overloaded method with ByteBuffer.
• If user-customized Deserializers override this overloaded method's default implementation, they also can reduce memory allocation and memory copying.

Public Interfaces

We propose adding default method Deserializer#deserialize(String, Headers, ByteBuffer).

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