Colin P. McCabe created KAFKA-7609:
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Summary: Add Protocol Generator for Kafka
Key: KAFKA-7609
URL: https://issues.apache.org/jira/browse/KAFKA-7609
Project: Kafka
Issue Type: Improvement
Reporter: Colin P. McCabe
Assignee: Colin P. McCabe
Rather than hand-writing the code for sending and receiving all the different
versions of the Kafka RPC protocol, we should have a protocol generator which
can generate this code from an interface definition language (IDL).
This will make it less labor-intensive and error-prone to add new message types
and versions. It will also make it easier to support these new RPC changes in
clients such as librdkafka.
Eventually, we should be able to get rid of the Struct classes and serialize
messages directly to byte buffers. This will greatly reduce the garbage
collection overhead of the network stack, especially when handling large
messages.
Furthermore, having a formal definition for the Kafka protocol may eventually
allow us to expose other transports such as REST without writing lots of glue
code to translate back and forth.
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