Some important features of Apache Hadoop :

HI, 

Today I am sharing some useful things about Hadoop, what it actually is, where is it used and its benefits... 

Overview:

 Hadoop is an open source, Java based framework used for storing and processing big data. The data is stored on inexpensive commodity servers that run as clusters. ...

Hadoop uses the MapReduce programming model for faster storage and retrieval of data from its nodes.

Three components of Hadoop :

1. Hadoop Distributed File System (HDFS)
   

2. Hadoop MapReduce

3. Hadoop YARN

When to Use Hadoop

It is used for Processing very BIG Data. When the data is huge in terabytes or petabytes of data, Hadoop is good choice then. 

1. For Huge Data 

2. For Storing a Diverse Set of Data

3. For Parallel Data Processing

When NOT to Use Hadoop

1. For Real-Time Data Analysis

2. For a Relational Database System

3. For Non-Parallel Data Processing

Why is Hadoop important?

Ability to store and process huge amounts of any kind of data, quickly. With data volumes and varieties constantly increasing, especially from social media and the Internet of Things (IoT), that's a key consideration.

Computing power. Hadoop's distributed computing model processes big data fast. The more computing nodes you use, the more processing power you have.

Fault tolerance. Data and application processing are protected against hardware failure. If a node goes down, jobs are automatically redirected to other nodes to make sure the distributed computing does not fail. Multiple copies of all data are stored automatically.

Flexibility. Unlike traditional relational databases, you don’t have to preprocess data before storing it. You can store as much data as you want and decide how to use it later. That includes unstructured data like text, images and videos.

Low cost. The open-source framework is free and uses commodity hardware to store large quantities of data.

Scalability. You can easily grow your system to handle more data simply by adding nodes. Little administration is req uired.

Real Life Applications 

Here are some real-life examples of ways other companies are using Hadoop to their advantage.

• Analyze life-threatening risks. ... 

• Identify warning signs of security breaches. ... 

• Prevent hardware failure. ... 

• Understand what people think about your company. ... 

• Understand when to sell certain products. ... 

• Find your ideal prospects.

It provides massive storage for any kind of data, enormous processing power and the ability to handle virtually limitless concurrent tasks or Jobs 

SHARE your experience with it or any additional comment information you may have. 

Sources:

https://www.hostingadvice.com/how-to/what-is-hadoop/ 

https://hadoop.apache.org/

https://www.sas.com/en_us/insights/big-data/hadoop.html