High Availability for Web applications

As more mission critical applications move to the cloud, making the application highly available becomes super critical. An application not…

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Single Sign On for the cloud: SAML & OpenId

When accessing different applications owned by different organizations, having to authenticate everytime you go from one application to another is…

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What is NoSQL ?

NoSQL is a term used to refer to a class of database systems that differ from the traditional relational database…

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Apache Shiro : Application Security Made Easy

Considering that JAVA is over 10+ years old, the number of choices for application developers that need to build authentication…

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Spring Declarative Transactions Example

A transaction is a unit of work that has ACID (atomic, consistent, isolated and durable) properties. Atomic means that the…

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MapReduce: A Soft Introduction

MapReduce is a parallel programming technique made popular by Google. It is used for processing very large amounts of data.…

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The dreaded double checked locking idiom in Java

The issue discussed in this article is not new, but still tricky even for seasoned developers. The singleton pattern is a…

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Spring MVC Development – Quick Tutorial

This is a short tutorial on Developing web applications with Spring from Manoj at “The Khangaonkar Report”, one of our…

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Java Memory Model – Quick overview and things to notice

In computing, a Memory model describes how threads interact through memory, or more generally specify what assumptions the compiler is…

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