How to realize the basics of Apache Hadoop

Education

Many freshers as well as mid-career IT professionals, flock nowadays to a Cloudera Administrator Training for Apache Hadoop in Bangalore or a Cloudera Administrator Training for Apache Hadoop in Delhi NCR. Many certifications and training programs have been created to teach these professionals the intricacies and uses of Hadoop although none of these certifications are through the Apache Hadoop Foundation. 

This often leaves the professionals to wonder which of these certifications is valuable while the organizations who hire these professionals wonder which skills should they search for in their future employees with Hadoop experience. Hadoop falls under the big data category and being successful with it is more an art than science. 

Apache Hadoop is an open-source framework used to efficiently store and process datasets that may range in size from gigabytes to petabytes or more. But instead of utilizing only one huge computer to process and store all of this data, Hadoop clusters multiple computers in various arrays to analyze these massive datasets. This allows Hadoop to process the datasets parallelly and save time and effort.

Hadoop consists of four main modules namely:

  1. Hadoop Distributed File System (HDFS): This is a distributed file system that runs on low-end hardware and provides better data throughput than the traditional file systems. It provides a high tolerance to faults and supports large native datasets.
  2. Yet Another Resource Negotiator (YARN): It monitors and manages resource usage through the cluster nodes. Its main work is to schedule any tasks and jobs.
  3. MapReduce: This framework allows programs to take input data and convert it into a dataset that then can be computed in key-value pairs. This helps the programs to perform parallel computations on data where the output is consumed by a reduced number of tasks to aggregate output to provide the desired result.
  4. Hadoop Common: This part contains all of the common Java libraries that can be used across all modules. 

The Cloudera Administrator Training for Apache Hadoop in Bangalore or a Cloudera Administrator Training for Apache Hadoop in Delhi NCR teaches the functioning of Apache Hadoop and the environments where they may be put to use.