Learn and Understand the Concept of Hadoop Distribution File System

Hadoop experts are going to share detailed information about Hadoop Distribution File System (HDFS). It’s a kind of distributed file system that is intended to stick to the advantages of a conventional distributed file system (DFS) and Google File system or GFS. The big data Hadoop development framework has its own file system, which is called Hadoop Distributed File System (HDFS). It’s a self-healing system designed and developed in Java that has ability to handle and store big data (petabytes or terabytes), regardless of format and schema, offering throughput, high scalability, and reliability while running on huge commodity machine clusters.

Concept of Hadoop Distribution File System

Fig- Showing the basic architecture of HDFS

HDFS is intended to locate most complications and issues related to traditional file distributed system. Major characteristics of HDFS are- massive data storage, high throughput, single writer/ multiple readers, fault tolerance, commodity machine usage, scalable and file management system, and more.

[Read More: Ultrasonic Cleaners – Great for Removing Buffing Compounds]

Important terminologies used for HDFS

To understand the functionality of HDFS, you must acquire complete knowledge about key terminologies used by Hadoop professionals-

DataNode

DataNode is affordable commodity machine that is used to store large amount of data. It is also named as the workhorse of the file system, which executes all commands driven by NameNode, say for instance- physically deletion, creation, and replication of a block. It also performs low level operations for I/O requests served for the HDFS client and enables pipelining of data and is used for forwarding data to another data node that is present inside the same cluster.

NameNode

It stores and handles metadata information of the file system, such as size, location, hierarchy, permission, etc. NameNode is efficient reliable machine that has a lot o RAM for easy and quick access and to support persistence.

It manages the file system with the transactional log assistance, i.e. it edits the log. NameNode receives regular block reports and a heartbeat from all data nodes present inside the cluster to operate the HDFS cluster health and assure proper functioning of the system.

[Read More: Adopting Economical Software Technology for Managing Customer Database]

Blocks

These are the smallest writable units present on the file system or disk. The blocks are useful for storing larger files- petabyte or zetabyte on HDFS. Its default size (64 MB) supports storing data of zeta bytes or petabytes over large commodity machine in a cluster and offering high throughput for accessing stored data.

Secondary NameNode

Sometimes Hadoop developers also name it as the CheckPointNode or HelperNode. This is a distinct and highly reliable machine that has lot of CPU power and RAM. NameNode edits the Log/Transaction log and merges the NameNode FSImage file with Edits log and develop a new FSImage file.

You now know the terminologies of HDFS and the architecture design. HDFS is extremely reliable and available data storage that is advanced than traditional distributed file system. We hope you like this article and share your valuable comments in below section.

One Response

  1. Adriene April 14, 2015
Games Security
Telephone System
Office Telephone System: How to Choose the Right One for Small Enterprise
Internet Marketing
Top-Most Internet Marketing Strategies on the Go
Domain Name
5 Useful Tips for Choosing the Right Domain Name
External Giveaway Freebie TechnoGiants Giveaway
MacXDVD
Freebie: MacXDVD Gives Away 10K Free Copies of MacX Video Converter
Flipbook
Giveaway #40: FlipHTML5 Flipbook 3-months Platinum Plan Subscription
iCare Data Recovery Pro
Giveaway #39: iCare Data Recovery Pro Free Download with License Key
Android iPhone
Android Phone
5 Tricks to Speed Up Your Slow Android Phone
Money Online
Great Ways to Earn Money Online With Your Smart Phone
Download Manager for Android
Best Android downloading Softwares
Adsense
On Page Optimization
Understand the effectiveness and important of On Page Optimization
Search Engine
Why Content Marketing is the New Key to Good SEO
Outsource SEO
5 tips that will help you with SEO Outsourcing
MAC Software
Hiring Software
How to Get the Most Out of Your Hiring Software?
DVD Copy
How do you copy DVD with DVDFab DVD Copy Software?
Able2Extract Professional 11
6 Time-Saving Tricks: Featuring Able2Extract Professional 11
Blogging Social Media
WordPress
7 Pros and Cons of WordPress for Blogging!
eCommerce
How to Set Up an eCommerce Store Using WordPress in 7 Steps
Instagram
Instagram Features you Should Maximize
Email Marketing
Infographic: The Giant Email Marketing Statistics Guide
Ecommerce
Infographic: How to Create Your Ecommerce Store With Magento
Ways to Backup iPhone
Infographic: Ways to Backup iPhone – Avoid iPhone Data Loss
Debit cards
The Rise in use of Credit/Debit cards in India after Demonetization