After the recent comparisons on real time processing between Flink and Spark, isn't Flink the actual "competitive" product? In the sense that it's real "real time", not the way Spark streaming (not dismissing it, it's what I actually use) works.
That's the gist. I am a Flink fan, but I get the impression it's still in the research and development phase...although rapidly approaching a potentially production-level quality.
That said, Storm is Event-streaming processing which is usually the focal point of most comparisons between Flink and Spark Streaming.
