TOP 10 Open Source Big Data Databases


A look at some of the most interesting examples of open source Big Data databases in use today.

The databases and data warehouses you’ll find on these pages are the true workhorses of the Big Data world. They hold and help manage the vast reservoirs of structured and unstructured data that make it possible to mine for insight with Big Data.

Businesses rely heavily on these open source solutions, from tools like Cassandra (originally developed by Facebook) to the well regarded MongoDB, which was designed to support the biggest of big data loads. And the tools rise to the challenge: OrientDB, for instance, can store up to 150,000 documents per second. The organizations that rely on these open source databases range from Boeing to Comcast to the Danish government. It’s accurate to say that, as much as any tool set, the software listed on these pages plays a central role in today’s global business marketplace.


1. Cassandra

Originally developed by Facebook, this NoSQL database is now managed by the Apache Foundation. It’s used by many organizations with large, active datasets, including Netflix, Twitter, Urban Airship, Constant Contact, Reddit, Cisco and Digg. Commercial support and services are available through third-party vendors. Operating System: OS Independent.


2. HBase

Another Apache project, HBase is the non-relational data store for Hadoop. Features include linear and modular scalability, strictly consistent reads and writes, automatic failover support and much more. Operating System: OS Independent.


3. MongoDB

MongoDB was designed to support humongous databases. It’s a NoSQL database with document-oriented storage, full index support, replication and high availability, and more. Commercial support is available through 10gen. Operating system: Windows, Linux, OS X, Solaris.


4. Neo4j

The “world’s leading graph database,” Neo4j boasts performance improvements up to 1000x or more versus relational databases. Interested organizations can purchase advanced or enterprise versions from Neo Technology. Operating System: Windows, Linux.


5. CouchDB

Designed for the Web, CouchDB stores data in JSON documents that you can access via the Web or query using JavaScript. It offers distributed scaling with fault-tolerant storage. Operating system: Windows, Linux, OS X, Android.


6. OrientDB

This NoSQL database can store up to 150,000 documents per second and can load graphs in just milliseconds. It combines the flexibility of document databases with the power of graph databases, while supporting features such as ACID transactions, fast indexes


7. Terrstore

Based on Terracotta, Terrastore boasts “advanced scalability and elasticity features without sacrificing consistency.” It supports custom data partitioning, event processing, push-down predicates, range queries, map/reduce querying and processing and server-side update functions. Operating System: OS Independent.


8. FlockDB

Best known as Twitter’s database, FlockDB was designed to store social graphs (i.e., who is following whom and who is blocking whom). It offers horizontal scaling and very fast reads and writes. Operating System: OS Independent.


9. Hibari

Used by many telecom companies, Hibari is a key-value, big data store with strong consistency, high availability and fast performance. Support is available through Gemini Mobile. Operating System: OS Independent.


10. Riak

Riak humbly claims to be “the most powerful open-source, distributed database you’ll ever put into production.” Users include Comcast, Yammer, Voxer, Boeing, SEOMoz, Joyent,, DotCloud, Formspring, the Danish Government and many others. Operating System: Linux, OS X.



[Reference] IT Business Edge Site (

Thursday 3 June 2021
Posted by Redback Academy
Tag :

Google Certified Associate Cloud Engineer Certification at Vellore | Redback Academy

Google Certified Associate Cloud Engineer Certification
Get hands on with Google Cloud Platform (GCP) and become a Google Certified Associate Cloud Engineer (ACE)

Google Cloud is growing quickly as companies increasingly adopt multi-cloud strategies. It was once again named a Leader in the 2019 Gartner Infrastructure as a Service Magic Quadrant, and demand for people with Google Cloud skills is running high. To meet this demand and help organizations identify knowledgeable talent, Google has created their Associate Cloud Engineer certification.

This course is targeted at efficiently teaching the skills required by the ACE certification—namely deploying applications, monitoring operations, and managing enterprise solutions. It also helps students demonstrate those skills through certification. The certification requires candidates be able to use both the GCP console and the command-line to perform many common platform-based tasks, but this course does not require students to already have experience with either, going in.

This course is also designed to give students the solid foundation of GCP capability that they will need to later build toward the Google Certified Professional Cloud Architect (PCA) certification--which was recently named as 2019's top-paying IT certification.

What you'll learn

  • Set up a Google Cloud environment, including billing accounts, projects, tools, access, and security.
  • Plan, configure, implement, deploy, monitor, and manage solutions in the Google Cloud.
  • Get familiar with using the Google Cloud through both the console and the command-line.
  • Pass the Google Associate Cloud Engineer certification exam.
  • Build a strong foundation for other GCP certification exams.


  • You should understand the basic concepts of Cloud Computing.
  • No coding experience is required and code is provided for use in labs where necessary.
  • You’ll need some form of computer—Desktop/Laptop/Chromebook computer.
  • Please note that a mobile phone screen may be fine for viewing this course, but you'll want something larger for the labs.
  • A willingness to do labs and other homework is required. This course is hands-on and interactive. Active, motivated students will get a lot out of this course. Passive students will struggle and should not take this course.

This course will prepare you to:

  • Set-up and configure Google Cloud accounts using best practices.
  • Use GCP services like Cloud Storage, Compute Engine, and Kubernetes Engine in your everyday work.
  • Pass the GCP Associate Cloud Engineer certification exam.
  • No coding experience is required and code used for labs is provided.

Course content

  • Course Info
  • Certification Intro
  • Intro to Google Cloud Platform (GCP)
  • Intro to GCP Products/Services
  • Getting Started
  • Account Setup
  • Cloud Shell and Data Flows
  • Basic Services
  • Basic Services Challenge Lab
  • Scaling
  • Security
  • Networking
  • GKE Introduction: Google Kubernetes Engine
  • Kubernetes Course Introduction
  • Kubernetes Big Picture
  • Kubernetes Application Architecture
  • Kubernetes Networking
  • Kubernetes Storage
  • From Code to Kubernetes
  • Kubernetes Deployments
  • Kubernetes Auto-scaling Apps
  • Kubernetes Security
  • More Kubernetes Stuff
  • Kubernetes and GKE Wrap-up
  • GAE: Google App Engine
  • Services Breadth
  • System of Services
  • Wrapping Up
  • Exam Preparation
  • Practice Test 1
  • Practice Test 2
  • But Wait, There's More!

Who this course is for:

  • Sysadmins or other individuals who want to learn how to configure and manage Google Cloud systems and demonstrate those abilities through certification.
  • Developers who want to leverage Google Cloud for the applications they build.
  • Architects and technical managers who want to get hands-on and “stay honest” with the technology.
  • Featured review

Contact :
No : 5/X2 Hari ohm 2ns Street, 
Phase III, Sathuvachari,
Vellore - 632009
+91 8189985551 / 8189985559
Monday 2 March 2020
Posted by Sivapriya

The Complete Web Developer Course in Vellore | Redback Academy

Learn Web Development by building  websites and mobile apps using HTML, CSS, Javascript, PHP, Python, MySQL & more!
What you'll learn
  • Build websites and webapps
  • Build HTML-based mobile apps
  • Get a job as a junior web developer
  • Bid for projects on freelance websites
  • Start their own online business
  • Be a comfortable front-end developer
  • Be proficient with databases and server-side languages
Course content
  • Getting Started
  • HTML 5
  • CSS 3
  • Javascript
  • jQuery
  • Bootstrap 4
  • Wordpress
  • PHP
  • MySQL
  • APIs
  • Mobile Apps
  • HTML 5 & CSS 3 Special Features
  • Python
  • Bonus Section: Twitter Clone Using MVC
  • No pre-knowledge is required - enthusiasm is all you need!
  • A PC or Mac is required
  • No software is required in advance of the course (all software used in the course is free)
Who this course is for:
  • Anyone who wants to learn to code
  • Anyone who wants to generate new income streams
  • Anyone who wants to build websites
  • Anyone who wants to become financially independent
  • Anyone who wants to start their own business or become freelance
Contact :
No : 5/X2 Hari ohm 2ns Street, 
Phase III, Sathuvachari,
Vellore - 632009
+91 8189985551 / 8189985559

Ref Links :
Sunday 1 March 2020
Posted by Sivapriya

Linux Administration Bootcamp: Linux training in vellore | Redback Academy

Go from Beginner to Advanced

Learn Red Hat Linux & CentOS: Use the in-demand skills to start a career as a Linux Server Admin or Linux Administrator!

What you'll learn
By the end of this course you will understand the fundamentals of the Linux operating system and be able to apply that knowledge in a practical and useful manner.

A desire to learn.

Course Outline :
This Linux course doesn't make any assumptions about your background or knowledge of Linux. You need no prior knowledge to benefit from this course. You will be guided step by step using a logical and systematic approach. As new concepts, commands, or jargon are encountered they are explained in plain language, making it easy for anyone to understand. Here is what you will learn by taking Linux Bootcamp:

How to get access to a Linux server if you don't already.
What a Linux distribution is and which one to choose.
What software is needed to connect to Linux from Mac and Windows computers.
What SSH is and how to use it.
The file system layout of Linux systems and where to find programs, configurations, and documentation.
The basic Linux commands you'll use most often.
Creating, renaming, moving, and deleting directories.
Listing, reading, creating, editing, copying, and deleting files.
Exactly how permissions work and how to decipher the most cryptic Linux permissions with ease.
How to use the nano, vi, and emacs editors.
Two methods to search for files and directories.
How to compare the contents of files.
What pipes are, why they are useful, and how to use them.
How to compress files to save space and make transferring data easy.
How and why to redirect input and output from applications.
How to customize your shell prompt.
How to be efficient at the command line by using aliases, tab completion, and your shell history.
How to schedule and automate jobs using cron.
How to switch users and run processes as others.
How to find and install software.
How the the boot process works on Linux servers and what you can do to control it.
The various types of messages generated by a Linux system, where they're stored, and how to automatically prevent them from filling up your disks.
Disk management, partitioning, and file system creation.
Logical Volume Manager (LVM) - extending disk space without downtime, migrating data from one storage to another, and more.
Managing Linux users and groups.
Networking concepts that apply to system administration and specifically how to configure Linux network interfaces.
How to configure sudo.
Managing process and jobs.
Linux shell scripting

Who this course is for:
People with limited time.
Anyone with a desire to learn about Linux.
People that have Linux experience, but would like to learn about the Linux command line interface.
Existing Linux users that want to become power users.
People that need Linux knowledge for a personal or business project like hosting a website on a Linux server.
Professionals that need to learn Linux to become more effective at work. Helpdesk staff, application support engineers, and application developers that are required to use the Linux operating system.
People thinking about a career as a Linux system administrator or engineer, but need the basics first.
Researchers, college professors, and college students that will be using Linux servers to conduct research or complete course work.

Read More :

Friday 28 February 2020
Posted by Sivapriya

The Complete Android N Developer Course Learn Android App Development with Android 7 Nougat by building real apps including Uber, Whatsapp and Instagram!

What you'll learn:
  • Make pretty much any Android app you like (your only limit is your imagination).
  • Submit your apps to Google Play and generate revenue with Google Pay and Google Ads.
  • Become a professional app developer, take freelance gigs and work from anywhere in the world.
  • Bored with the same old, same old? Apply for a new job in a software company as an Android developer.

Course content
  • What Does The Course Cover?
  • Introduction To Android Studio
  • Java Deep Dive
  • Media: Images, Video and Sound
  • Advanced Android Features
  • Maps & Geolocation
  • Permanent Data Storage
  • Instagram Clone
  • Uber Clone
  • Flappy Bird Clone
  • The Extras
  • Android Wear Mini-Course
  • Submitting Your App To Google Play
  • Setting Up A Marketing Website
  • Twitter Clone
  • WhatsApp Clone
  • Where do you go from here?
  • Pre-Introduction - App Marketing For Your App!
  • Introduction To Your Success!
  • Let's Get The Show On The Road!
  • Expert App Store Optimization (ASO) Search Engine Strategies
  • Top Expert Marketing Strategies For Your App Part 1
  • A Windows PC, Mac or Linux Computer
  • ZERO programming knowledge required
Who this course is for:
  • Anyone who wants to be an app developer: This is a complete course, just like my Complete Web, iOS and Apple Watch courses. It will teach you how to make money from your apps as well as how to code.
  • Anyone who wants to learn to code: Java is a fantastic language to learn how to code with.
  • Anyone who wants to understand how computers work: Learning to code is so much more than being able to make apps - knowing how computers work is your key to a hugely powerful world.
Posted by Sivapriya

Cloud Infrastructure and Services Training in Vellore

Course Overview :
The course presents a top-down view of cloud computing, from applications and administration to programming, infrastructure, billing and security. The topics include: overview of cloud computing, cloud systems, Load balancing in AWS, distributed storage systems, virtualization, security in AWS, and management services and Billing. Students will study state-of-the-art solutions for cloud computing developed by Amazon. Students will also apply what they learn in one programming assignments and one project executed over Amazon Web Services.

Content :
1. Introduction to Cloud Technologies
Introduction to the Cloud Computing, History of cloud computing, Cloud service options, Cloud Deployment models, Business concerns in the cloud.

2. Virtualization and Cloud Platforms
Exploring virtualization, Load balancing, Hypervisors, Machine imaging, Cloud marketplace overview, Comparison of Cloud providers.

3. Introduction to AWS
AWS history, AWS Infrastructure, AWS services, AWS ecosystem.

4. Programming, management console and storage on AWS
Basic Understanding APIs - AWS programming interfaces, Web services, AWS URL naming, Matching interfaces and services, Elastic block store - Simple storage service, Glacier - Content delivery platforms.

5. AWS identity services, security and compliance
Users, groups, and roles - Understanding credentials, Security policies, IAM abilities and limitations, AWS physical security - AWS compliance initiatives, Understanding public/private keys, Other AWS security capabilities.

6. AWS computing and marketplace
Elastic cloud compute - Introduction to servers, Imaging computers, Auto scaling, Elastic load balancing, Cataloging the marketplace, AMIs, Selling on the marketplace

7. AWS networking and databases
Virtual private clouds, Cloud models, Private DNS servers (Route 53), Relational database service – DynamoDB, ElastiCache, Redshift.

8. Other AWS services and management services
Analytics services, Application services, Cloud security, CloudWatch, CloudFormation, CloudTrail, OpsWorks.

9. AWS billing and Dealing with disaster
Managing costs, Utilization and tracking, Bottom line impact, Geographic and other concerns, Failure plans, Examining logs.

Course Outcome:
After learning the course, the student will be able:
1. To explain the core concepts of the cloud computing paradigm: how and why this paradigm shift came about, the characteristics, advantages and challenges brought about by the various models and services in cloud computing.
2. To apply the fundamental concepts in datacenters to understand the tradeoffs in power, efficiency and cost by Load balancing approach.
3. To discuss system virtualization and outline its role in enabling the cloud computing system model.
4. To illustrate the fundamental concepts of cloud storage and demonstrate their use in storage systems such as Amazon S3 and HDFS.
5. To analyze various cloud programming models and apply them to solve problems on the cloud.
6. To understand various management and other distinguish services of AWS.
7. To analyze the billing of resources and other paradigm: how to deal with disasters.
8. To understand security and compliances for AWS. 
9. To deploy applications over commercial cloud computing infrastructures such as Amazon

List of Assignments / Experiments:
1. Write pros and cons of Cloud Computing.
2. Summarize Cloud service models with real time examples.
3. Define Virtualization. Also list and explain different Hypervisors.
4. Discuss performance evaluation of service over cloud.
5. Create a scenario that use Amazon S3 as storage on cloud.

Contact Details :
Redback IT Academy 
No : 5/X2 Hari Ohm 2nd Street,
Phase III, Sathuvachari,
Vellore. 632009
+91 8189985551
Wednesday 5 February 2020
Posted by Sivapriya


Is it worth putting in all of the work? Consider these benefits of earning a certification, and if you see the benefits for your situation, go for it!
  1. A differentiator against the competition. When employers are interviewing, the competition is often stiff. If you have the certification, and the other person does not, you are at a definite advantage.
  2. Plugs you into two new communities: one that is earning the certification, and one that has the certification. For example, if you are going for your PMP certification, you will immediately have something in common with other hopefuls, and this can provide networking opportunities through classes, the web, and meetings. The same holds true when you have earn the certification; you are a member of the "club." While these are benefits of PMP certification, the same would hold true of most certifications
  3. Gives you confidence that you have "passed through the chairs." When you have set your sights on a goal, put together a plan, work hard, and you reach it, you gain confidence, which spills over into all aspects of your life.
  4. Gives you tools to draw upon when needed. Having gone through all of the study and hard work, you have mastered a new body of knowledge. Put it to use as soon as you can.
  5. While it is said that "experience is the greatest teacher," a certification "rounds you out." Often, experience is strong in some areas, but not in others. Like education, experience rounds you out, giving exposure to ideas and approaches outside your comfort zone. In addition, being able to think outside your experience is an ingredient of leadership.
  6. You can be a better mentor. The ability to mentor is based greatly on experience, but the best mentors can reach beyond their experience. They are able to extrapolate from their experience, and relate it to someone else's entirely different experience.
  7. Establishes you as a continuous learner. Employers are always looking for people who never want to stop learning. Learning is a value unto itself, and those around you will respect and admire you for it, and sometimes even be a little jealous!
  8. Will enable you to make more money. Often, earning a certification, such as the PMP, can quickly lead to compensation increases of 20% and more.
  9. Enables you to better evaluate the talents and skills of others. With the discipline to master the material for the certification, you are in a better position to evaluate the skills of others. You have had the opportunity to evaluate your own strengths and weaknesses in the process of earning the certification, and have a broader understanding of the skills and toolsets that can be effective.
  10. Gets your foot in the door in the new area. Many career changers turn to certifications to get themselves into a new area. For example, many technical people who want to advance will earn the PMP certification in order to move into a position of greater responsibility.
Monday 27 January 2020
Posted by Sivapriya



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