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Computers and Technology

Everything you need to know about Hadoop?


Hadoop is an open-source framework that helps in managing data processing & stores data applications in the computer server. Similarly, it handles various forms of data, by giving the users more flexibility for collecting, processing, analyzing & managing the data. However, freshers can best institute of Big Data Hadoop Online Training that helps you to enhance your skills & knowledge. Mainly it’s the ability is to process & store different types of such as Internet click logs, web servers, social media posts, IoT customer emails.

Let’s analyze the Significance of Hadoop.

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Despite the rise of other solutions, particularly in the cloud, Hadoop remains a critical and beneficial technology. Well, Big data consumers for the following reasons:

  • It stores all structured, unstructured & semi-structured data quickly.
  • It guards against hardware faults in application and data processing. Processing tasks are automatically passed to other nodes whenever a node in a cluster goes down, ensuring that applications continue to run.

Does not require pre-processing of data prior to storage.

  • Organizations can keep unprocessed data in HDFS and determine how to process and filter it later for specific analytics purposes.
  • It’s scalable, so businesses can quickly add more nodes to increase the amount of data their systems can process.
  • It can handle batch workloads for historical analysis as well as real-time analytics to aid in better operational decision-making.

Working of Hadoop

It makes it easy to make use of all of a cluster server’s storage and processing power, as well as the ability to conduct distributed operations on enormous data sets. Hadoop serves as a foundation for the creation of additional services and applications.

  • Spark

A distributed processing system that is open source and extensively used for big data applications. Apache Spark provides general batch processing, streaming analytics, machine learning to process, analyze, and HOC queries. It leverages in-memory caching and optimized execution for rapid performance.

  • Presto

An open-source, distributed SQL query engine designed for ad-hoc data processing with low latency. Complex queries, aggregations, joins, and window functions are all supported by the ANSI SQL standard.

Presto can process data from a variety of sources, including the Hadoop Distributed File System (HDFS) and Amazon Simple Storage Service (S3).

  • Hive

Allows customers to use Hadoop MapReduce through a SQL interface, allowing for large-scale analytics as well as distributed and fault-tolerant data warehousing.

  • HBase

A non-relational, versioned open-source database that works on Amazon S3 (using EMRFS) or the Hadoop Distributed File System (HDFS).

HBase is a massively scalable, distributed big data store designed for real-time access to tables with billions of rows and millions of columns in a random, rigorously consistent manner.

What are the modules of Hadoop?

However, it is built up of each module that performs a specific activity need of by a big data analytics computer system.

  • MapReduce: –

The MapReduce module gets its name from the two primary activities it performs: taking data from a database, converting it to a format suited for analysis (map), and conducting mathematical operations, such as counting the number of males aged 30+ in a client database (reduce).

  • Common Hadoop: –

The Hadoop Common module offers the tools (in Java) that users’ computer systems (Windows, Unix, or whatever) need to access data stored in the Hadoop file system.

  • Yarn: –

YARN is the final module, which manages the resources of the systems that store the data and do the analysis. Various more methods, libraries, or features have been part of the Hadoop “framework” in recent years, but the main four are Hadoop File System, Hadoop MapReduce, Hadoop Common, and Hadoop YARN.


It has shown to be a very successful solution for businesses dealing with petabytes of data. It has solved many issues in the industry including large data management and distributed systems. Because it is open-source, it is frequently cast off by businesses. The knowledge and skills of the Big Data Hadoop Training in Gurgaon have assisted people in getting jobs in top companies. People in this field earn a good wage in a variety of firms, depending on their location, experience, and other factors.


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