redux-thunk https://github.com/reduxjs/redux-thunk Why Do I Need This? Thunks are the recommended middleware for basic Redux side effects logic, including complex synchronous logic that needs access to the store, and simple async logic like AJAX requ…
异步不保序,但大作业执行时间后移. .set("spark.scheduler.mode", "FAIR") 公平调度,充分使用集群资源. Spark Doc def collectAsync(): FutureAction[Seq[T]] Returns a future for retrieving all elements of this RDD. def countAsync(): FutureAction[Long] Returns a future fo…