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https://issues.apache.org/jira/browse/KAFKA-5966?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Luke Chen reassigned KAFKA-5966:
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Assignee: Luke Chen
> Support ByteBuffer serialization in Kafka Streams
> -------------------------------------------------
>
> Key: KAFKA-5966
> URL: https://issues.apache.org/jira/browse/KAFKA-5966
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Xavier Léauté
> Assignee: Luke Chen
> Priority: Major
>
> Currently Kafka Streams only supports serialization using byte arrays. This
> means we generate a lot of garbage and spend unnecessary time copying bytes,
> especially when working with windowed state stores that rely on composite
> keys. In many places in the code we have extract parts of the composite key
> to deserialize the either the timestamp or the message key from the state
> store key (e.g. the methods in WindowStoreUtils)
> Having support for serde into/from ByteBuffers would allow us to reuse the
> underlying bytearrays and just pass around slices of the underlying Buffers
> to avoid the unnecessary copying.
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