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From "Gyula Fora (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-2917) Make non-copying behaviour default for stream operator
Date Sun, 25 Oct 2015 15:40:27 GMT
Gyula Fora created FLINK-2917:
---------------------------------

             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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