From the Senior WebSphere Consulting IT Specialist at IBM

Nitin Gaur

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Top Stories by Nitin Gaur

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." Scalability in a system is about the ability to do more, whether it is processing more data or handling more traffic, resulting in higher transactions Scalability poses great challenges to database and transaction systems An increase in data can expose demand constraints on back-end database servers This can be a very expensive and short term approach to ... (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)

Establishing a Mobile Center of Excellence (CoE)

I. Statement of Purpose The intent of this document is to capture the discussion and provide a prescriptive approach and consideration towards establishing a Mobile CoE. This document is also to serve as a Body of Knowledge (BoK) that includes agreed upon objectives, tasks and various other business and technology related topics in context of Mobile design. This document is just a draft on guidelines. The final charter of any CoE is task and responsibility of the core members of CoE. II. Intent of a CoE: Center of Excellence (CoE) is essentially a team of people that promote c... (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)

Scalable HTTP Session Management with WebSphere Extreme Scale (WXS)

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 ... (more)