Print the contents of RDD in Spark & PySpark
In Spark or PySpark, we can print or show the contents of an RDD by…
In Spark or PySpark, we can print or show the contents of an RDD by…
In Spark foreachPartition() is used when you have a heavy initialization (like database connection) and…
In Spark, foreach() is an action operation that is available in RDD, DataFrame, and Dataset…
Spark RDD reduceByKey() transformation is used to merge the values of each key using an…
Spark map() is a transformation operation that is used to apply the transformation on every…
Spark flatMap() transformation flattens the RDD/DataFrame column after applying the function on every element and…
Spark collect() and collectAsList() are action operation that is used to retrieve all the elements…
Apache Spark provides a suite of Web UI/User Interfaces (Jobs, Stages, Tasks, Storage, Environment, Executors,…
Spark Performance tuning is a process to improve the performance of the Spark and PySpark…
Spark DataFrame provides a drop() method to drop a column/field from a DataFrame/Dataset. drop() method…