1-844-696-6465 (US)        +91 77600 44484        help@dezyre.com

Big Data Hadoop Training by Building Projects

  • Get Trained for Microsoft Big Data Certification - Learn More
  • Become a Hadoop Developer by getting project experience
  • Build a project portfolio to connect with recruiters
    - Check out Toly's Portfolio
  • Get hands-on experience with access to remote Hadoop cluster
  • Stay updated in your career with lifetime access to live classes

Upcoming Live Online Hadoop Training

Sun to Thu (3 weeks)
6:30 PM - 8:30 PM PST
for 6 months

Sat and Sun (4 weeks)
7:00 AM - 11:00 AM PST
for 6 months

Want to work 1 on 1 with a mentor. Choose the project track

About Online Hadoop Training

Project Portfolio

Build an online project portfolio with your project code and video explaining your project. This is shared with recruiters.

42 hrs live hands-on sessions with industry leaders

The live interactive sessions will be delivered through online webinars. All sessions are recorded. All instructors are full-time industry Architects with 14+ years of experience.

Remote Lab and Projects

You will get access to a remote Hadoop cluster for this purpose. Assignments include running MapReduce jobs/Pig & Hive queries. The final project will give you a complete understanding of the Hadoop Ecosystem.

Lifetime Access & 24x7 Support

Once you enroll for a batch, you are welcome to participate in any future batches free. If you have any doubts, our support team will assist you in clearing your technical doubts.

Weekly 1-on-1 meetings with Mentor

If you opt for the Microsoft Track, you will get 8 one-on-one meetings with an experienced Hadoop architect who will act as your mentor.

Benefits of Online Hadoop Training

How will this help me get jobs?

  • Display Project Experience in your interviews

    The most important interview question you will get asked is "What experience do you have?". Through the DeZyre live classes, you will build projects, that have been carefully designed in partnership with companies.

  • Connect with recruiters

    The same companies that contribute projects to DeZyre also recruit from us. You will build an online project portfolio, containing your code and video explaining your project. Our corporate partners will connect with you if your project and background suit them.

  • Stay updated in your Career

    Every few weeks there is a new technology release in Big Data. We organise weekly hackathons through which you can learn these new technologies by building projects. These projects get added to your portfolio and make you more desirable to companies.

What if I have any doubts?

For any doubt clearance, you can use:

  • Discussion Forum - Assistant faculty will respond within 24 hours
  • Phone call - Schedule a 30 minute phone call to clear your doubts
  • Skype - Schedule a face to face skype session to go over your doubts

Do you provide placements?

In the last module, DeZyre faculty will assist you with:

  • Resume writing tip to showcase skills you have learnt in the course.
  • Mock interview practice and frequently asked interview questions.
  • Career guidance regarding hiring companies and open positions.

Hadoop FAQ's- Microsoft Track

1) How will I benefit from the Microsoft Hadoop Certification track with Industry Expert?

  • You will get 8 one-to-one Sessions with an experienced Hadoop Architect.
  • You will learn to use Hadoop technology in Microsoft Azure HDInsight to build batch processing, real-time processing and interactive processing big data solutions.
  • Microsoft Hadoop Training track will help you prepare for the "70-775 Perform Data Engineering on Microsoft Azure HDInsight" Hadoop certification exam.
  • "70-775 Perform Data Engineering on Microsoft Azure HDInsight" Hadoop certification is a MCSE (Microsoft Certified Solutions Expert Level – a globally recognized standard for IT professionals) certification level that will help IT professionals demonstrate their ability to build innovative big data solutions on Hadoop HDInsight cluster to the prospective employers.
  • On successful completion of the exam, receive a certificate from Microsoft to verify your big data skills and increase your big data job prospects.

2) Who should take the "70-775 Perform Data Engineering on Microsoft Azure HDInsight" Hadoop certification exam?

This Hadoop certification exam is designed for candidates who want to become certified big data developers, data architects, data engineers, and data scientists. Candidates appearing for this exam must have undergone a comprehensive Hadoop training and should have knowledge of relevant big data technologies like Hadoop, Spark, HBase, Hive, Sqoop, Flume, and HDInsight.

3) What skills are tested in the "70-775 Perform Data Engineering on Microsoft Azure HDInsight" Hadoop certification exam?

This Hadoop certification exam tests a candidate's ability to implement batch data processing, real-time processing, and interactive processing on Hadoop in HDInsight. The Microsoft Hadoop certification exam 70-775 aims to test a candidates ability to accomplish the below mentioned technical tasks –

  • Administer and Provision HDInsight Clusters.
  • Implement Big Data Real Time Processing Solutions.
  • Implement Big Data Batch Processing Solution.
  • Implement Big Data Interactive Processing Solutions.

4) What is the cost of "70-775 Perform Data Engineering on Microsoft Azure HDInsight" Hadoop certification exam?

The cost for "70-775 Perform Data Engineering on Microsoft Azure HDInsight" Hadoop certification exam is 165 USD. If you have any specific questions regarding the Microsoft track for Big Data and Hadoop Training, please click the Request Info. Button on top of this page.

5) Is the "70-775 Perform Data Engineering on Microsoft Azure HDInsight" Hadoop certification exam descriptive or an MCQ’s exam?

"70-775 Perform Data Engineering on Microsoft Azure HDInsight" Hadoop certification exam is a multiple choice questions exam.

5) How to prepare for the "70-775 Perform Data Engineering on Microsoft Azure HDInsight" Hadoop certification?

There is no go-to exam guide to prepare for this Hadoop HDInsight Certification exam. The best way to prepare for this exam is to have a good hands-on experience working on big data technologies like Hadoop, HBase, Pig, Hive, YARN, Sqoop, and Spark. DeZyre’s Big Data and Hadoop training will help you prepare for the exam through a big data Hadoop project under the guidance of an industry expert. You can also refer to the Azure HDInsight documentation available on the Microsoft official website to prepare yourself for the "70-775 Perform Data Engineering on Microsoft Azure HDInsight" big data certification exam.

Big Data and Hadoop Course Curriculum

Module 1

Introduction to Big Data

  • Rise of Big Data
  • Compare Hadoop vs traditonal systems
  • Hadoop Master-Slave Architecture
  • Understanding HDFS Architecture
  • NameNode, DataNode, Secondary Node
  • Learn about JobTracker, TaskTracker
Module 2

HDFS and MapReduce Architecture

  • Core components of Hadoop
  • Understanding Hadoop Master-Slave Architecture
  • Learn about NameNode, DataNode, Secondary Node
  • Understanding HDFS Architecture
  • Anatomy of Read and Write data on HDFS
  • MapReduce Architecture Flow
  • JobTracker and TaskTracker
Module 3

Hadoop Configuration

  • Hadoop Modes
  • Hadoop Terminal Commands
  • Cluster Configuration
  • Web Ports
  • Hadoop Configuration Files
  • Reporting, Recovery
  • MapReduce in Action
Module 4

Understanding Hadoop MapReduce Framework

  • Overview of the MapReduce Framework
  • Use cases of MapReduce
  • MapReduce Architecture
  • Anatomy of MapReduce Program
  • Mapper/Reducer Class, Driver code
  • Understand Combiner and Partitioner
Module 5

Advance MapReduce - Part 1

  • Write your own Partitioner
  • Writing Map and Reduce in Python
  • Map side/Reduce side Join
  • Distributed Join
  • Distributed Cache
  • Counters
  • Joining Multiple datasets in MapReduce
Module 6

Advance MapReduce - Part 2

  • MapReduce internals
  • Understanding Input Format
  • Custom Input Format
  • Using Writable and Comparable
  • Understanding Output Format
  • Sequence Files
  • JUnit and MRUnit Testing Frameworks
Module 7

Apache Pig

  • PIG vs MapReduce
  • PIG Architecture & Data types
  • PIG Latin Relational Operators
  • PIG Latin Join and CoGroup
  • PIG Latin Group and Union
  • Describe, Explain, Illustrate
  • PIG Latin: File Loaders & UDF
Module 8

Apache Hive and HiveQL

  • What is Hive
  • Hive DDL - Create/Show Database
  • Hive DDL - Create/Show/Drop Tables
  • Hive DML - Load Files & Insert Data
  • Hive SQL - Select, Filter, Join, Group By
  • Hive Architecture & Components
  • Difference between Hive and RDBMS
Module 9

Advance HiveQL

  • Multi-Table Inserts
  • Joins
  • Grouping Sets, Cubes, Rollups
  • Custom Map and Reduce scripts
  • Hive SerDe
  • Hive UDF
  • Hive UDAF
Module 10

Apache Flume, Sqoop, Oozie

  • Sqoop - How Sqoop works
  • Sqoop Architecture
  • Flume - How it works
  • Flume Complex Flow - Multiplexing
  • Oozie - Simple/Complex Flow
  • Oozie Service/ Scheduler
  • Use Cases - Time and Data triggers
Module 11

NoSQL Databases

  • CAP theorem
  • RDBMS vs NoSQL
  • Key Value stores: Memcached, Riak
  • Key Value stores: Redis, Dynamo DB
  • Column Family: Cassandra, HBase
  • Graph Store: Neo4J
  • Document Store: MongoDB, CouchDB
Module 12

Apache HBase

  • When/Why to use HBase
  • HBase Architecture/Storage
  • HBase Data Model
  • HBase Families/ Column Families
  • HBase Master
  • HBase vs RDBMS
  • Access HBase Data
Module 13

Apache Zookeeper

  • What is Zookeeper
  • Zookeeper Data Model
  • ZNokde Types
  • Sequential ZNodes
  • Installing and Configuring
  • Running Zookeeper
  • Zookeeper use cases
Module 14

Hadoop 2.0, YARN, MRv2

  • Hadoop 1.0 Limitations
  • MapReduce Limitations
  • HDFS 2: Architecture
  • HDFS 2: High availability
  • HDFS 2: Federation
  • YARN Architecture
  • Classic vs YARN
  • YARN multitenancy
  • YARN Capacity Scheduler
Module 15


  • Demo of 2 Sample projects.
  • Twitter Project : Which Twitter users get the most retweets? Who is influential in our industry? Using Flume & Hive analyze Twitter data.
  • Sports Statistics : Given a dataset of runs scored by players using Flume and PIG, process this data find runs scored and balls played by each player.
  • NYSE Project : Calculate total volume of each stock using Sqoop and MapReduce.

Microsoft Track

  • In a survey of 700 IT professionals, 60 percent said certification led to a new job. (Network World and SolarWinds, IT Networking Study, October 2011
  • 86% of hiring managers indicate IT certifications are a high or medium priority during the candidate evaluation process. (CompTIA, Employer Perceptions of IT Training and Certification, January 2011)
  • 64% of IT hiring managers rate certifications as having extremely high or high value in validating the skills and expertise of job candidates. (CompTIA, Employer Perceptions of IT Training and Certification, January 2011)
Module 1

Learn Hadoop on HDInsight (Linux)

  • What is Hadoop on HDInsight?
  • How is data stored in HDInsight?
  • Information about using HDInsight on Linux
  • Using SSH with Linux clusters from a Linux computer
  • SSH Tunneling to HDInsight Linux clusters
Module 2

Processing Big Data with Hadoop in Azure HDInsight

  • Provision an HDInsight cluster.
  • Connect to an HDInsight cluster, upload data, and run MapReduce jobs.
  • Use Hive to store and process data.
  • Process data using Pig.
  • Use custom Python user-defined functions from Hive and Pig.
  • Define and run workflows for data processing using Oozie.
  • Transfer data between HDInsight and databases using Sqoop.
Module 3

Implementing Real-Time Analytics with Hadoop in Azure HDInsight

  • Use HBase to implement low-latency NoSQL data stores.
  • Use Storm to implement real-time streaming analytics solutions.
  • Use Spark for high-performance interactive data analysis.
Module 4

Implementing Predictive Analytics with Spark in Azure HDInsight

  • Using Spark to explore data and prepare for modeling
  • Build supervised machine learning models
  • Evaluate and optimize models
  • Build recommenders and unsupervised machine learning models
Module 5


  • Implement a Big Data Project under the guidance of a Hadoop Architect
  • Upload your project to DeZyre portfolio and display to recruiters

Hadoop Projects

The Hadoop Projects at DeZyre are based on real use cases from the industry. Working on Hadoop projects will solidify your working knowledge in Hadoop. In any Hadoop project - the process remains the same. Gathering the data, opening it in HDFS, identifying the attributes required for analysis, cleaning the data and then doing the transformation in analysis. But there are different projects that students can practice on, because it is a challenge to understand a particular set of data if you are not from that field.

In the DeZyre 1-1 mentor track, you can choose any of the following projects to work on. You will be assigned an Industry mentor, who will oversee your project and guide you throughout the duration of the Hadoop Project. You will get 6 hours of 1-1 sessions with the mentors.

Once you complete the final project, you will receive the certificate in Big Data and Hadoop from DeZyre. You can also mention this Hadoop project that you worked on, in your resume and on your LinkedIn profile. Let's get started.

  • Hadoop Project - 1: Data Analysis on Medicare Data. (Heathcare Sector)

    Medicare is a Govenrment heatlh insurance program. Every month in your paycheck you will see a deduction for Medicare. The way this program works is - every month from your paycheck, the Govt. deducts an amount, whether you like it or not. Once you turn 65 or when you retire, or if someone turns out to be terminally ill, Medicare will give health insurance benefits throughout the remaining life of that person.

    In this project, you will need to do some analysis of medicare data. This is a complicated data set. This is because private companies administer this program. It means Medicare claims are offered by private companies. The private companies, in order to attract the customers, will list some other benefits, apart from the basic benefits listed by the Govt. scheme and therefore will charge something extra for it. Medicare maintains the details of what plans are available in each county, across the country. Also these details include - what is the plan, who is providing it, what are the benefits offered in this plan and the charges for that. All this information is available in Medicare and is accessible.

    In this project - you will directly get the data from Medicare, to perform analysis on the data. Different private companies offer a variety of Medicare plans in many counties. Since senior citizens have to enroll in these plans every year - it becomes important to choose the right plan, because every plan has different benefits and different charges for availing the benefits. For senior citizens - this is the biggest financial decision they make every year. Medicare data is focused on choosing the right Medicare plan. Some queries that you will be working on are:

    • You have to decide which plans are giving the most benefits.
    • Identify the top 5 plans with lowest premiums in each county.
    • What are the charges and benefits for a Doctor's co-pay?
    • What are the charges for a generalist doctor or a specialist doctor?
    • How do the plans compare for the ambulance services required?
    • What are the plans available for diabetes patients?

    All these questions need to be answered through big data analytics - so that it can help members choose the right kind of plan based on their requirements.

  • Hadoop Project - 2: Perform Call-drop analysis. (Telecom Sector)

    All mobile operators will have call records. Every day, all the calls that are made by people are recorded and a log file is maintained for these records. This is known as the CDR data. In this project, to get real insights on the data - you have to analyse over 100 million calls in the logs(each day). The objective of this analysis is to figure out how to resolve the call-drop issue. For example, if somebody is experiencing more than 17 call-drops in a month, then there is 90% chance that the person will drop out of the network.

    You will need to perform the call-drop analysis on the call log data, on a daily basis, so that-

    • You can figure out who are the customers who are facing this difficulty.
    • Where they are located?
    • What is the reason for the call-drops?
    • Identify the customers who are at risk of getting dropped out.

    The reason this kind of analysis is becoming critical is - for a company, it is always cheaper to retain a customer than to acquire new customers. This will allow u to advise the tech support team to optimize the towers from which more call-drops are occuring, to expand the capacity of these towers from where there are call drops occuring. To do this per day data should be analysed. Per day the data produced for one mobile network is 100 million call records. Since it cannot be fit into one machine - you will need to split that into 2 million blocks - so that all of it can fit into one machine for simultaneous analysis.

  • Hadoop Project - 3: Identifying Mortgage Defaulters (Finance Sector)

    In a bank, Hadoop tools can be used to predict mortgage defaulters and improve market segmentation. It requires you to move the data from multiple data warehouses into the Hadoop cluster and then build some queries on that data.

    For market segmentation for increased business, you need to:

    • Locate the top 10 states where the customers do not have credit cards. This data will allow Banks to sell their credit cards or loan products.
    • Identify customers within the age group of 25-60 years who are not using Mobile Apps. Based on this market segmentation the banks will run a marketing campaign.
    • Profiling the occurances of late payment or defaults, which will let the banks move into these markets strategically, thereby avoiding unnecessary bad debts.

    The requirement of this project, is to load the data into Hadoop clusters and build these queries.

  • Hadoop Project - 4: Real Time Twitter Data Acquisition. (Product Development/Marketing Sector)

    You can build a listening platform based on Twitter data analysis. If a company wants to understand what people think about their products or services and what are the sentiments of their customers, they can turn to social media platforms like Twitter. To extract the comments that are related to the company, its products or brands, Hadoop can be used to gather that data and run some analysis on that data. You can build queries around the data like:

    • Identify which regions the comments are coming from.
    • Perform sentiment analysis.
    • Gauge interest level of the customers in a particular geography.
    • Group by different segments.

    This kind of analysis is useful for the company for marketing campaigns and customer support. This will help curb distatified customers leaving bad comments in social media which could affect their brand.

Upcoming Online Hadoop Training

Aug 19th

  • Duration: 3 weeks
  • Days: Sat and Sun
  • Time: 6:30 PM - 8:30 PM PST
  • 8 One-to-One session (1 hour) with Hadoop Architect
  • Get Prepared to be Microsoft Certified
  • Implement a Big Data Hadoop Project
  • Total Fees $67/month for 6 months
  • Enroll

Sep 02nd

  • Duration: 4 weeks
  • Days: Sat and Sun
  • Time: 7:00 AM - 11:00 AM PST
  • 8 One-to-One session (1 hour) with Hadoop Architect
  • Get Prepared to be Microsoft Certified
  • Implement a Big Data Hadoop Project
  • Total Fees $67/month for 6 months
  • Enroll

What People Are Saying

In a short span of time, we have helped many people move up in their careers or change their career paths.

Sample Video

Frequently Asked Questions

  • How will this Hadoop Training Benefit me?

    - Learn to use Apache Hadoop to build powerful applications to analyse Big Data
    - Understand the Hadoop Distributed File System (HDFS)
    - Learn to install, manage and monitor Hadoop cluster on cloud
    - Learn about MapReduce, Hive and PIG - 3 popular data analysing frameworks
    - Learn about Apache Sqoop,Flume and how to run scripts to transfer/load data
    - Learn about Apache HBase, how to perform real-time read/write access to your Big Data
    - Work on Projects with live data from Twitter, Reddit, StackExchange and solve real case studies

  • What is the Microsoft Certification Track ?

    DeZyre is an authorised Microsoft Training Partner. We train you for the Microsoft Big Data Engineering Certification. We will assign a Hadoop Architect as your mentor. You will get 8,1-to-1 live online sessions with this mentor. You will jointly implement a project. You will also receive study materials from Microsoft. The mentor will also help you prepare for the Microsoft certification. 

  • Where can I find best hadoop projects for beginners?

    DeZyre's hadoop training follows a complete hands-on approach where professionals/students get to work on multiple hadoop projects that are based on real big data use cases in the industry.Apart from this DeZyre also has hundreds of other big data projects and hadoop projects for practice across diverse business domains that students can enrol for at a nominal fee per project.

  • What is Apache Hadoop?

    Hadoop is an open source programming framework used to analyse large and sometimes unstructured data sets. Hadoop is an Apache project with contributions from Google, Yahoo, Facebook, Linkedin, Cloudera, Hortonworks etc. It is a Java based programming framework that quickly and cost efficiently processes data using a distributed environment. Hadoop programs are run across individual nodes that make up a cluster. These clusters provide a high level of fault tolerance and fail safe mechanisms since the framework can effortlessly transfer data from failed nodes to other nodes. Hadoop splits programs and data across many nodes in a cluster.

    The Hadoop ecosystem consists of HDFS, MapReduce. This is accompanied by a series of other projects like Pig, Hive, Oozie, Zookeeper, Sqoop, Flume etc. There are various flavours of Hadoop that exist including Cloudera, Hortonworks and IBM Big Insights. Hadoop is increasingly used by enterprises due to its flexibility, scalability, fault tolerance and cost effectiveness. Anyone with a basic sql and database background will be able to learn hadoop.

  • What is Apache Oozie?

    Oozie is a scheduling component on top of hadoop for managing hadoop jobs. It is a java based web application that combines multiple jobs into a single logical unit of work. It was developed to simplify the workflow and coordination of hadoop jobs. Hadoop developers define actions and dependencies between these actions. Oozie then runs the workflow of dependent jobs i.e. it schedules various actions to be executed, once the dependencies have been met. Oozie consists of two important parts -

    1) Workflow Engine - It stores and runs the workflows composed of Hadoop MapReduce jobs, hive jobs or pig jobs.

    2) Coordinator Engine - Runs the workflow jobs based on the availability of data and scheduled time.

    Read more on “How Oozie works?”

  • Do you need SQL knowledge to learn Hadoop?

    It is not necessary for one to have SQL knowledge to begin learning hadoop. For people, who have difficulty in working with java or have no knwoledge about java programming,some basic knowledge of SQL is a plus.However, there is no hard rule that you must know SQL but knowing the basics of SQL will give you the freedom to accomplish your Hadoop job using multiple components like Pig and Hive.

    If you are getting started with Hadoop then you must read this post on -"Do we need SQL knowledge to learn Hadoop?"


  • How to learn hadoop online?

    Learning Hadoop is not a walk in the park, it takes some time to understand and gain practical experience on the hadoop ecosystem and its components. The best way to learn hadoop is to start reading popular hadoop books like – “Hadoop: The Definitive Guide”, read some interesting and informative hadoop blogs or hadoop tutorials that will give you some theoretical knowledge about the hadoop architecture and various tools in the ecosystem. However, to get a hadoop job theoretical knowledge does not suffice and gaining hands-on working experience to get a hang of the hadoop ecosystem is a must to land a top gig as a hadoop developer or hadoop administrator. DeZyre’s online hadoop training covers all the basics right from understanding “What is Hadoop?” to deploying your own big data application on the hadoop cluster. After the hadoop training, you can keep yourselves abreast with the latest tools and technologies in the hadoop ecosystem by working on hadoop projects in various business domains through Hackerday to add an extra feather to the cap on your hadoop resume.

  • What are the various Hadoop Developer job responsibilities?

    A hadoop developer is responsible for actually programming and coding the business logic of big data applications using the various components- Pig, Hive, Hbase, etc of the hadoop ecosystem. The core responsibility of a Hadoop Developer is to load disparate datasets, perform analysis on them and unveil valuable insights. The job responsibilities of a Hadoop developer are like any other software developer but in the big data domain. Read More on Hadoop Developer – Job Responsibilities and Skills.

  • What are various Hadoop Admin job responsibilities?

    Hadoop Admin responsibilities are similar to that of system administrator responsibilities but a hadoop admin deals with the configuration, management and maintenance of hadoop clusters unlike a system admin who deals with servers. Quick overview of Hadoop Admin responsibilities –

    • Installing and configuring new hadoop clusters
    • Maintaining the hadoop clusters
    • Hadoop administrators are also involved in the capacity planning phase.
    • Monitoring any failed hadoop jobs
    • Troubleshooting
    • Backup and Recovery Management

    Read More – Hadoop Admin Job Responsibilities and Skills

  • Does DeZyre offer any corporate discounts for Hadoop training course?

    DeZyre offers corporate discounts for the hadoop course based on the number of students enrolling for the course. Contact us by filling up the Request Info.   form on the top of the hadoop training page. Our career counsellors will get back to you at the earliest and provide you with all the details.

  • Why Hadoop Training and Certification Online?
    Hadoop is the leading framework in use today to analyse big data. This has triggered a large demand for hadoop developers, hadoop administrators and data analysts. Getting trained Hadoop provides valuable skills in the hadoop ecosystem including Pig, Hive, MapReduce, Sqoop, Flume, Oozie, Zookeeper, YARN. Storm and Spark and also becoming relevant in Hadoop related training. DeZyres Hadoop training offers 40 hours of live interactive instructor led online courses. This is accompanied by lifetime access to a discussion forum and a hadoop cluster on Amazon AWS.
  • Why do I need the Certificate in Big Data and Hadoop?
    If you are using Internet today - chances are you've come across more than one website that uses Hadoop. Take Facebook, eBay, Etsy, Yelp , Twitter, Salesforce - everyone is using Hadoop to analyse the terabytes of data that is being generated. Hence there is a huge demand for Big Data and Hadoop developers to analyse this data and there is a shortage of good developers. This DeZyre certification in Big Data and Hadoop will significantly improve your chances of a successful career since you will learn the exact skills that industry is looking for. At the end of this course you will have a confident grasp of Hadoop, HDFS, Map-Reduce, HBase, Hive, Pig and Sqoop, flume, Oozie, ZooKeeper etc.
  • Why should I learn Hadoop from DeZyre instead of other providers?
    DeZyre's Hadoop Curriculum is the most in-depth, technical, thorough and comprehensive curriculum you will find. Our curriculum does not stop at the conceptual overviews, but rather provides in-depth knowledge to help you with your Hadoop career. This curriculum has been jointly developed in partnership with Industry Experts, having 9+ years of experience in the field - to ensure that the latest and most relevant topics are covered. Our curriculum is also updated on a monthly basis.
  • How do I qualify for the Certificate in Big Data and Hadoop?
    There are minimum quality checks you will have to clear in order to be Certified. You will have to attend atleast 70% of the live interactive sessions to qualify and you must submit the final project which will be graded after which you will receive the certification.
  • Do I need to know Java to learn Hadoop?
    A background in any programing language will be helpful - C, C++, PHP, Python, PERL, .NET, Java etc. If you don't have a Java background, we will activate a free online Java course for you to brush up your skills. Experience in SQL will also help. Our helpful Faculty and Assistant Faculty will help you ramp up your Java knowledge.
  • What kind of Lab and Project exposure do I get?
    This course provides you with 40 hours of lab and 25 hours of a project.
    You can run the lab exercises locally on your machine (installation docs will be provided) or login to DeZyre's AWS servers to run your programs remotely. You will have 24/7 support to help you with any issues you face. You will get lifetime access to DeZyre's AWS account.
    The project will provide you with live data from Twitter, NASDAQ, NYSE etc and expect you to build Hadoop programs to analyze the data.
  • Who will be my faculty?
    At DeZyre we realize that there are very few people who are truly "Hadoop experts". So we take a lot of care to find only the best. Your faculty will have at-least 9 years of Java + Hadoop experience, will be deeply technical and is currently working on a Hadoop implementation for a large technology company. Students rate their faculty after every module and hence your faculty has grown through a rigorous rating mechanism with 65 data points.
  • Is Online Learning effective to become an expert on Hadoop?
    From our previous Hadoop batches (both offline and online), our research and survey has indicated that online learning is far more effective than offline learning -
    a) You can clarify your doubts immediately
    b) You can learn from outstanding faculty
    c) More flexibility since your don't have to travel to a class
    d) Lifetime access to course materials
  • What is HDFS?

    The Hadoop Distributed File System [HDFS] is a highly fault tolerant distributed file system, that is designed to run on low-cost, commodity hardware. HDFS is a Java-based file system that forms the data management layer of Apache Hadoop. HDFS provides scalable and reliable data storage thereby making it apt for applications with big data sets. In Hadoop, data is broken into small 'blocks' and stored in several clusters so that the data can be analyzed at a faster speed. HDFS has master/slave architecture. The HDFS cluster has one NameNode - a master server that manages the file system and several DataNodes. A large data file is broken into small 'blocks' of data and these blocks are stored in the Data Nodes. Click to read more on HDFS. 

  • What is MapReduce?

    Hadoop MapReduce is a programming framework which provides massive scalability across Hadoop clusters on commodity hardware. MapReduce concept is inspired by the 'Map' and 'Reduce' functions that can be seen in functional programming. MapReduce programs are written in Java. A MapReduce 'job' splits big data sets into independent 'blocks' and distributes them in the Hadoop cluster for fast processing. Hadoop MapReduce performs two separate tasks and operates on [key,value] pairs. The 'map' job takes a set of data' converts it into another set of data which breaks the individual elements into tuples [key,value] pairs. The 'reduce' job comes after the 'map' job. Where the output of the 'map' job is treated as input and these data tuples are combined into smaller set of tuples. Click to read more on MapReduce. 

  • What is Apache HBase?

    HBase is open source, distributed, non relational database which has been modeled after Google's 'BigTable: A Distributed Storage System for Structured Data'. Apache HBase provide BigTable like capabilities on top of Hadoop HDFS. Hbase allows applications to read/write and randomly access Big Data. Hbase is written in Java, built to scale and can handle massive data tables with billions of rows and columns. HBase does not support a structured query language like SQL. With HBase schemas have to be predefined and the column families have to be specified. But HBase schemas are very flexible, as in, new columns can be added to the families at any time - this way HBase adapts to the changing requirement of the applications.

  • What is Apache Pig?

    Apache PIG is a platform which consists of a high level scripting language that is used with Hadoop. Apache PIG was designed to reduce the complexities of Java based MapReduce jobs. The high level language used in the platform is called PIG Latin. Apache PIG abstracts the Java MapReduce idiom into a notation which is similar to an SQL format. Apache PIG does not necessarily write queries for the data, but it allows creating a complex data flow which shows how the data will be transformed, using graphs which include multiple inputs, transforms and outputs. PIG Latin can be extended using UDFs [User Defined Functions] using any other scripting language like Java, Python or Ruby. Click to read more on Apache PIG. 

  • What is Apache Hive?

    Apache Hive was developed at Facebook. Hive runs on top of Apache Hadoop as an open source data warehouse system for querying and analyzing big data sets stored in Hadoop's HDFS. Hive provides a simple SQL like query language - Hive QL, which translates Hadoop MapReduce jobs into SQL like queries. Hive and PIG though perform the same kind of functions, like, data summarization, queries and analysis - Hive is more user friendly, as anyone with a SQL or relational database background can work on it. HiveQL supports custom MapReduce jobs to be plugged into queries. But Hive is not built to support OTPL workloads. It means there can be no real time queries or row level updates made. Click to read more on Apache Hive. 

  • What is Apache Sqoop?

    Sqoop was designed to transfer structured data from relational databases to Hadoop. Sqoop is a 'SQL-to-Hadoop' command line tool which is used to import individual tables or entire databases into files in HDFS. This data is transformed into Hadoop MapReduce and again the data is transferred back to the relational database. It is not possible for MapReduce jobs to join with data directly on separate platforms. The database servers will suffer a high load due to concurrent connections while the MapReduce jobs are running. Instead if MapReduce jobs join with the data that is loaded on HDFS, it will further speed up the process. Sqoop automates this entire process with a single command line.

  • What is Apache Flume?

    Apache Flume is a highly reliable distributed service used for collecting, aggregating and moving huge volumes of streaming data into the centralized HDFS. It has a simple and flexible architecture which works well while collecting and defining unstructured log data from different sources. Flume defines a unit of data as an 'event'. These events will then flow through one or more Flume agents to reach its destination. This agent is a Java process which hosts these 'events' during the data flow. Apache Flume components are a combination of sources, channels and sinks. Apache Flume sources, consumes events. Channels transfer events to their sinks. Sinks provides the Flume agent with pluggable output capability. Click to read more on Apache Flume. 

  • What is Apache Zookeeper?

    Apache Zookeeper(often referred to as the "King of Coordination" in Hadoop) is high-performance, replicated synchronization service which provides operational services to a Hadoop cluster. Zookeeper was originally built at Yahoo in order to centralize infrastructure and services and provide synchronization across a Hadoop cluster. Since then, Apache Zoopkeeper has grown into a full standard of co-ordination on its own. It is now used by Storm, Hadoop, HBase, Elastic search and other distributed computing frameworks. Zookeeper allows distributed processes to co-ordinate with each other through a shared hierarchical name space of data registers knows as znodes. This will look like a normal file system, but Zookeeper provides higher reliability through redundant services.

    Read More on "How Zookeeper works?"

  • How will I benefit from the Mentorship Track with Industry Expert?

    - Learn by working on an end to end Hadoop project approved by DeZyre.

  • What is Big Data?
    The term Big Data refers to both a problem and opportunity that involves analysing large complicated and sometimes unstructured data sets. Businesses can extract crucial information with the right tools to analyse this data. Historically companies have used MS Excel and basic RDBMS to achieve this kind of analysis. More recently tools such as SAS, SPSS, Teradata, Machine Learning, Mahout etc have played a role. Over the last 3-4 years new technologies such as hadoop, spark, storm, R, python etc have become popular tools to analyse big data. Big data is typically characterised by the volume, variety and velocity of the data.

    Big Data has triggered the need for a new range of job descriptions including Data Scientists, Data Analysts, Hadoop developers, R programers, Python developers etc. IBM indicates that over 90% of all data created was created in the last 2 years. The industries that deal with Big Data the most are telecom, retail, financial services and ad networks.

Hadoop Short Tutorials

These short Hadoop tutorials help boost in-depth knowledge around each of the components in the Hadoop ecosystem as they are in the form of advanced lessons for a quick memory recap of all that you learnt in your Hadoop training course. With to-the-point solutions to every problem a professional might encounter, while using any of the Hadoop components, these short Hadoop tutorials can be your guide to working with Hadoop on a daily basis.

  • If we have 100 GB file in HDFS and we want to make a hive table out of that data what will be the size of that table and where will it be stored?

    If it is a 100GB file then it should be created as an Hive External Table. When creating a Hive External Table , the data itself will be stored on HDFS in the specified filepath but Hive will create a map of the data in the metastore and the managed table will store data in Hive. Instead of speciifying just the filepath , one can also specify a directory of files as long as they have the same strcuture.

  • What is hadoop used for ?

    i) For processing really BIG DATA - If the business use-case you are tackling has atleast terabytes or petabytes of data then Hadoop is your go-to framework of choice. There are tons of other tools available for not-so large datasets.

    ii) For stroing diverse data  - Hadoop used for storing and processing any kind of data be it plain text files, binary format files, images.

    iii) Hadoop is used for parallel data processing use-cases.

  • In HDFS, why is it suggested to have very few large files rather than having multiple small files?

    The Namenode contains metadata about each and every file in HDFS. If the number of files is more, more will be the metadata. Namenode loads all the metadata information in-memory for speed, thus having many small files will make the metadata information big enough that will exceed the size of the memory on the Namenode.

  • If there is a used 64MB block size and you write a file that uses less than 64MB , will the total 64MB of disk space be consumed?

    When writing a file in HDFS , there are two types of block sizes -one is the underlying file systems block size and the other is the HDFS's block size.The underlying file system will store the file as increments of its block size on the actual raw disk so it will not consume the complete 64MB of disk space.

  • How will you copy a file form your local directory to HDFS ?

    The following syntax can be used on the Linux command line to copy the file -

    hadoop fs -put localfile hdfsfile


    hadoop fs -copyFromLocal localfile hdfsfile

  • Is it possible to recover the filesystem from datanodes if the namenode loses its only copy of the fsimage file?

    No it is not possible to recover the filesystem from datanodes if the namenode loses its only copy of the fsimage file. This is the reason it is always suggested to configure dfs.namenode.name.dir to write to two filesystems on different physical hosts and make use of the secondary Namenode.


  • Is it always necessary to write MapReduce jobs in Java programming language?

    There are different ways to write a mapreduce job by incorporating non-java code.

    • Use a JNI based C API libhdfs for communicating with HDFS.
    • Use HadoopStreaming utility that allows any shell command to be used as a map or a reduce function.
    • You can also write map-reduce jobs using a SWIG compatible C++ API known as Hadoop Pipes.
  • How well does Apache Hadoop scale ?

    The tiny toy elephant’s scalability has been validated on hadoop clusters of up to 4000 nodes . Sort performance of hadoop on 900 nodes, 1400 nodes and 2000 nodes is good and it takes approx. 1.8 hours, 2.2 hours and 2.5 hours to sort 9TB, 14TB and 20TB  of data respectively.

  • How will you check if hadoop hdfs is running or not ?

    Use the following steps to check if HDFS is running or not –

    List all the active daemons using the jps command.  The most appropriate command would be –

    hadoop dfsadmin –report

    The above command will list all the details of data nodes which is nothing but the hdfs.

    Or you can also use the cat command with any filename available at the HDFS location.

  • Does Hadoop require SSH passwordless access ?

    Apache Hadoop in itself does not require SSH passwordless access but hadoop provided shell scripts such as start-mapred.sh and start-dfs.sh make use of SSH to start and top daemons. This holds good in particular when there is a large hadoop cluster to be managed. However, the daemons can also be started manually on individual nodes without the need of SSH script.


Top 50 AWS Interview Questions and Answers for 2018

 “I would like to become an AWS Solution Architect, what do you think are the most commonly asked AWS Architect Interview questions that I will have to answer during my interview?”  We often get asked this question ...

Recap of Hadoop News for July 2018

News on Hadoop - July 2018 ...

Recap of Apache Spark News for June 2018

News on Apache Spark - June 2018 ...

Top 6 Hadoop Vendors providing Big Data Solutions in Open Data Platform

Today, Hadoop is an open-source, catch-all technology solution with incredible scalability, low cost storage systems and fast paced big data analytics with economical server costs.

Top 50 Hadoop Interview Questions

The demand for Hadoop developers is up 34% from a year earlier. We spoke with several expert Hadoop professionals and came up with this list of top 50 Hadoop interview questions.

Big Data Analytics- The New Player in ICC World Cup Cricket 2015

With the ICC World Cup Cricket 2015 round the corner; battle is on for the ICC World Cup 2015.The big final is between Australia and New Zealand.

Hadoop 2.0 (YARN) Framework - The Gateway to Easier Programming for Hadoop Users

In this piece of writing we provide the users an insight on the novel Hadoop 2.0 (YARN) and help them understand the need to switch from Hadoop 1.0 to Hadoop 2.0.

Hadoop MapReduce vs. Apache Spark –Who Wins the Battle?

An in-depth article that compares Hadoop and Spark and explains which Big Data technology is becoming more and more popular.

Difference between Pig and Hive-The Two Key Components of Hadoop Ecosystem

In this post we will discuss about the two major key components of Hadoop i.e. Hive and Pig and have a detailed understanding of the difference between Pig and Hive.

5 Reasons why Java professionals should learn Hadoop

Hadoop is entirely written in Java, so it is but natural that Java professionals will find it easier to learn Hadoop. One of the most significant modules of Hadoop is MapReduce and the platform used to create MapReduce programs is Apache Pig.

5 Job Roles Available for Hadoopers

As Hadoop is becoming more popular, the following job roles are available for people with Hadoop knowledge - Hadoop Developers, Hadoop Administrators, Hadoop Architect, Hadoop Tester and Data Scientist.


Ab fab – Edwards turns to Hadoop in push for smarter semiconductor factories, Diginomica, August 9, 2018

Semiconductor fabrication plants are among one of the smartest factories in the world.Edwards that builds critical subsystems used in chipmakers fabrication plants is using MapR’s Hadoop distribution as the foundation for predictive maintenance and more.It is using hadoop to develop a big data platform that will analyse data from its equipments located at customer sites across the globe. This will enable the company to provide them with real-time anomaly detection and predictive maintenance services.Apache Hadoop is the right choice for this project as there is large volumes of data involved, each medium-sized semiconductor plant can have as many as 4000 pieces of Edwards equipment inside and a big fab around 8000 or more. (Source - https://diginomica.com/2018/08/09/ab-fab-edwards-turns-to-hadoop-in-push-for-smarter-semiconductor-factories/ )

Apache Hadoop: A Tech Skill That Can Still Prove Lucrative,Dice.com, August 2, 2018.

In 2017, Gartner announced that organizations were spending close to $800 million on Hadoop distributions , even though only 14% of companies reported that they were relying on hadoop technology.However, several studies have revealed that the adoption and spending on hadoop technology continues to rise high through last year.Dice analysis demonstrates that jobs that intersect with Hadoop and other data analysis platforms really pay off well in terms of salary.However, to land that sort of a top gig for hadoop skills you need to have a right mix of certifications and hands-on experience.Some of the highest paying jobs according to Dice analysis that use Apache Hadoop are - Backend Developer, Big Data Developer, Data Architect, Data Analyst, Data Engineer, DevOps, Data Scientist,Machine Learning Engineer and Python Developer. (Source - https://insights.dice.com/2018/08/02/apache-hadoop-tech-skill-still-lucrative/ )

Commerzbank creates Hadoop-based platform for business-critical insights,ComputerWeekly.com,July 23,2018

Commerzbank , the second largest bank in Germany with 48,000 employees was on the lookout for creating a centralised data platform that could be used by all departments for better data-driven decision making. The bank set up a completely new department for big data and advanced analytics to build and support a platform for business-critical insights. Hadoop was chosen as the go-to big data technology for the data platform along with multiple other technologies running on top of hadoop to help users who are not tech experts. The platform is now capable of gleaning insights from large volumes of complex data, and is helping business people make the best out of data which was earlier available to technical experts.(Source - https://www.computerweekly.com/news/252445359/Commerzbank-creates-Hadoop-based-platform-for-business-critical-insights )

Big data and predictive analytics pull in smokers for lung screening.HealthcareITnews.com, July 27,2018

Predictive analysis and focused cloud-based marketing by Chesapeake Regional Healthcare has pulled in the smokers to get screened by its Lung Cancer Screening Trigger Campaign. According to Chesapeake Healthcare, there is 80% probability for curing lung cancer if detected at an early stage using low-dose computed tomography imaging. Chesapeake Healthcare uses SaaS based analytics tools and marketing technology for their campaign to identify, educate and target a specific set of people that are already at the risk of having lung cancer or who require lung screening test. Out of all patients screened, they were able to get around 5.21% of new patients and 9.17% of all patients it targeted to get lung screening. To achieve this result, they partnered with Tea Leaves Health, a cloud-based analytics service provider that also provides self-reported smokers data and some modelling tools around it. (Source -https://www.healthcareitnews.com/news/big-data-and-predictive-analytics-pull-smokers-lung-screening)

At 1 lakh new jobs, hiring will be flat in FY19: Nasscom.HinduBusinessLine.com, July 26,2018

The incremental hiring this year by the IT companies will remain same as the previous year i.e. 1 lakh new jobs to be added to IT Industry. A total of 40 lakh of people will be employed in year 2018-19. Although majority of the jobs will be for the emerging technologies like Artificial Technologies, Big Data, Machine Learning etc. As per Nasscom, total demand for these technologies will be around 5.11 lakh in 2018 and is expected to increase more than 50% by 2021. Under the scheme 9-66-155 which is part of FutureSkills platform, Nascom has identified 9 technologies across 16 different job roles and 155 skills that will be needed in those technologies. (Source-https://www.thehindubusinessline.com/info-tech/at-1-lakh-new-jobs-hiring-will-be-flat-in-fy19-nasscom/article24522622.ece)

Hadoop Jobs

Hadoop Developer

Company Name: Gold Coast IT Solutions
Location: New York
Date Posted: 15th Jul, 2018

Job Responsibilities

  • Participate in the design and implementation of various components and systems that are required to be highly efficient, robust and scalable.
  • A successful candidate should have proven experience with the Hadoop stack and NoSQL data stores (preferably Hbase), experience working on critical infrastructure and desire to drive a product forward.
  • The candidate must exhibit a passion for big data technologies and a flexible creative approach to problem solving

Senior Hadoop Infrastructure Engineer - Data & Analytics Platform Team

Company Name: Bloomberg
Location: New York
Date Posted: 18th Jun, 2018

Roles and Responsibilities

  • Evaluate Hadoop projects across the ecosystem and extend and deploy them to exacting standards (high availability, big data clusters, elastic load tolerance)
  •  Develop automation, installation and monitoring of Hadoop ecosystem components in our open source infrastructure stack, specifically HBase, HDFS, Map/Reduce, Yarn, Oozie, Pig, Hive, Tez, Spark and Kafka
  •  Dig deep into performance, scalability, capacity and reliability problems to resolve them
  •  Create application p...

Data Analytics Engineer

Company Name: HealthFirst
Location: New York
Date Posted: 17th Jun, 2018

Duties and Responsibilities:

  • Lead development and execution of highly complex algorithms and statistical predictive models from large sets of data
  • Lead the design and architecture of data models and dashboards used to retain and present key information to the business; Identify downstream impacts of changes and enhancements to current analyses, models, and algorithms
  • Analyze historical data to evaluate scenarios, identify efficacy of data, determine potential predictive value, and identify best modeling/machine learning techniques applicable
  • Partner with IT and business teams to operationalize models and algorithms to allow for ...