Different file formats of Spark/Hadoop

Create a TEXT file by add storage option as ‘STORED AS TEXTFILE’ at the end of a Hive CREATE TABLE command Ex: Create table textfile_table (column_specs) stored as textfile; 2. Sequence File: Sequence files are Hadoop flat files which stores values in binary key-value pairs. The sequence files are in binary format and these files

Spark Datasets: Advantages and Limitations

Spark Datasets: Advantages and Limitations Datasets are available to Spark Scala/Java users and offer more type safety than DataFrames. Python and R infer types during runtime, so these APIs cannot support the Datasets. This post demonstrates how to create Datasets and describes the advantages of this data structure.