I have a streaming application that has a keyBy operator followed by an operator working on the keyed values (a custom sum operator). If the map operator and aggregate operator are running on same Task Manager , will Flink always serialize and deserialize the tuples, or is there an optimization in this case due to 'locality'?
(I was planning on deploying my Flink Streaming application to a single 'big' node in the hope that I can reduce latency by saving on both network and serde.) Thanks, Hayden Marchant
