David Morávek created BEAM-11443:
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Summary: Byte-based GroupByKey in Flink Streaming
Key: BEAM-11443
URL: https://issues.apache.org/jira/browse/BEAM-11443
Project: Beam
Issue Type: Improvement
Components: runner-flink
Reporter: David Morávek
Assignee: David Morávek
Currently Flink Streaming GBK is implemented using `SystemReduceFn#buffering`,
that works on de-serialized values (we need to de-serialize value after shuffle
and then serialize again when appending to bag state).
We can remove this unnecessary serde cycle by using binary representation
instead of de-serialized payload.
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