Скачать или смотреть Inside the Hadoop Universe: Navigating the Hadoop Ecosystem From HDFS to Apache SPARK

here's a brief description of HDFS, MapReduce, Pig, Hive, and Spark:

HDFS: The Hadoop Distributed File System (HDFS) is a distributed file system that provides scalable and reliable storage for large-scale data processing applications. It is designed to store and manage large amounts of data across multiple machines in a Hadoop cluster.

MapReduce: MapReduce is a programming model for processing and generating large data sets in a parallel and distributed manner. It works by breaking up data processing tasks into smaller chunks that can be processed independently on different nodes in a Hadoop cluster.

Pig: Apache Pig is a high-level platform for creating MapReduce programs used with Hadoop. It provides a simple and easy-to-use language called Pig Latin for querying large data sets.

Hive: Apache Hive is a data warehouse system that provides SQL-like query language called HiveQL for querying and analyzing large data sets stored in Hadoop. It also provides an abstraction layer that makes it easier for users to work with Hadoop.

Spark: Apache Spark is a fast and powerful data processing engine for large-scale data processing. It is designed to work with Hadoop and other big data technologies and provides a unified platform for data processing, machine learning, and real-time stream processing.

Overall, these technologies are key components of the Hadoop ecosystem and are used for different tasks related to storing, processing, and analyzing large-scale data sets.