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How many times Flink initialize an operator?


I am using Flink 1.7 on K8S. This might does not matter :D.

I think Flink only initialize the MapFunction once per taskManager right?
Because Flink will serialize the execution graph and distribute it to taskManagers.

Or it creates a new MapFunction for every element?
stream.map(new MapFunction[I,O]).addSink(discard)

Hao Sun
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