Sarah Hennenkamp created KAFKA-17861:
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Summary: Serialize with ByteBuffer instead of byte[]
Key: KAFKA-17861
URL: https://issues.apache.org/jira/browse/KAFKA-17861
Project: Kafka
Issue Type: Wish
Components: producer
Affects Versions: 3.3.2
Reporter: Sarah Hennenkamp
This is a request to consider changing the return value of the
[Serializer|https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/common/serialization/Serializer.java]
from a byte[] to a ByteBuffer.
Understandably folks may balk at this since it's a large lift. However, we've
noticed a good chunk of memory allocation in our application comes from the
[KafkaProducer
serializing|https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/clients/producer/KafkaProducer.java#L1045]
the key and value pair. Using ByteBuffer could allow this to be off-heap and
save on garbage collection time.
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