Gyula Fora created FLINK-2917:
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Summary: Make non-copying behaviour default for stream operator
Key: FLINK-2917
URL: https://issues.apache.org/jira/browse/FLINK-2917
Project: Flink
Issue Type: Improvement
Components: Streaming
Reporter: Gyula Fora
Priority: Blocker
Currently chained streaming operators copy their output before invoking the
process method of the chained output task.
The community has agreed that this might be too big of a price for the
immutable semantics and the default behaviour should be changed to not copy.
I suggest to have an api level switch for the Operators to enable copying.
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