This is great !<p>I&#x27;m glad to see that the odd signatures of MapReduce operators has been definitely deprecated
in favor of true `map` and `reduce` functions (renamed `ParDo` and `Combine`)
even if `ParDo` is a `flatmap` (or `bind`) rather than a `map` function.<p>We gain in simplicity and composability.
And the long detour by MapReduce and Hadoop seems to take an end
in favor of systems like Spark, Flink, Samza and now Cloud Dataflow.