Spark - Function

Card Puncher Data Processing

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function = transformation ?




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Card Puncher Data Processing
PySpark - Closure

Spark automatically creates closures: for functions that run on RDDs at workers, and for any global variables that are used by those workers. One closure is send per worker for every task. closures...
Spark Pipeline
Spark - (Map|flatMap)

The map implementation in Spark of map reduce. map(func) returns a new distributed data set that's formed by passing each element of the source through a function. flatMap(func) similar to map but...
Spark Pipeline
Spark - Filter Transformation

filter(func) returns a new data set (RDD) that's formed by selecting those elements of the source on which the function returns true.



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