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From the Senior WebSphere Consulting IT Specialist at IBM

Nitin Gaur

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Top Stories by Nitin Gaur

HTTP session management is a function offered by Java Enterprise Edition (JEE) application servers. It allows JEE applications to store state information about a given user across many HTTP requests. The JEE specification provides an API to store and retrieve information specific to the given user. WebSphere application servers and other competing products, provide session replication functionality. This is normally done either by writing to a database or through memory-to-memory replication technology.  These approaches while extensively used today, have operational challenges and cost implications. HTTP session replication enables for seamless session recovery, in event of an application failure, but we currently do not have a reliable, predictable and cost effective solution to handle session recovery in event of a data center failure. Until now we have discourag... (more)

IBM CloudBurst and WebSphere CloudBurst Appliance Compared

What is a cloud computing platform? Is it simply automated provisioning systems coupled with a resource virtualization, where the workload is policy driven, and resources over committed and any resource contention handled by policy driven resolution? As it turns out technologies that provide provisioning, virtualization and policy enforcement form the building blocks of a true cloud computing platform, but not any one technology is a cloud offering in and of it self. IBM’s CloudBurst family attempts to provide a single cloud solution with an appliance form factor. This paper will... (more)

WebSphere eXtreme Scale Design and Performance Considerations

Fundamentals: How does WXS solve the Scalability problem? Understanding Scalability In understanding the scalability challenge addressed by WebSphere eXtreme Scale, let us first define and understand scalability. Wikipedia defines scalability as a "desirable property of a system, a network, or a process, which indicates its ability to either handle growing amounts of work in a graceful manner, or to be readily enlarged. For example, it can refer to the capability of a system to increase total throughput under an increased load when resources (typically hardware) are added." Scalabil... (more)

Apache Hadoop and WebSphere eXtreme Scale

Hadoop Apache Hadoop is a software framework (platform) that enables a distributed manipulation of vast amount of data. Introduced in 2006, it is supported by Google, Yahoo!, and IBM, to name a few. At the heart of its design is the MapReduce implementation and HDFS (Hadoop Distributed File System), which was inspired by the MapReduce (introduced by a Google paper) and the Google File System. MapReduce MapReduce is a software framework introduced by Google that supports distributed computing on large data sets on clusters of computers (or nodes). It is the combination of two pro... (more)

Providing Extensible and Scalable SOA Infrastructure

What Is XC10: Data Grid in a Box The WebSphere DataPower XC10 Appliance is a purpose-built, easy-to-use appliance designed for simplified deployment and hardened security at the caching tier of your enterprise application infrastructure. It incorporates 160GB cache into the DataPower line of appliances from IBM, adding elastic caching functions that enable your business-critical applications to scale cost effectively with consistent performance. The DataPower XC10 is designed for rapid, "drop-in" use in conjunction with WebSphere Application Server and other WebSphere family prod... (more)