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This article provides a list of general best practices to apply to any WebSphere Application Server V7 and V8 environment. However, some of the recommendations only apply to specific conditions and scenarios. These recommendations could be used to set up any WebSphere environment.
All...Jul. 29, 2011 10:30 AM EDT Reads: 3,389
I’ve been programming since around 1982, first using an Apple in high school and then finally getting my first computer, the Timex Sinclair 1000 (2k of ROM and 2k of RAM), that same year. Both computers came with a form of the BASIC programming language and it was the start of my lifel...
This article attempts to serve as checklist and is designed for clients and professional community that use or are considering to use WebSphere eXtreme Scale as a elastic, scalable in memory data cache, and who are interested in implementing a highly available and scalable e-business ...
When we encounter a java.lang.OutOfMemoryError, we often find that Java heap dumps, along with other artifacts, are generated by the Java Virtual Machine. If you feel like jumping right into a Java heap dump when you get a java.lang.OutOfMemoryError, don’t worry, it’s a normal thought....
This paper will attempt to discuss the usage scenario and demonstrate the use of WXS as a separate in memory data grid to store http sessions. This paper will discuss history and existing technology and introduces WXS as a technology that differentiates itself, by addressing existing s...
One of the main issues that PowerBuilder and PowerBuilder developers have been facing for the last few years is the lack of mind share for the product. All that seems to have changed with Sybase’s announcement of the beta of PowerBuilder 12.0. Articles on the release appeared in a larg...
In today’s technology-dependent enterprise environment, the efficiency of most business processes depends directly on the effective performance of the IT infrastructure. Almost every single activity - from servicing a customer to shipping purchased products - is dependent upon one or m...
With its ability to provide users dynamically scalable, shared resources over the Internet and avoid large upfront fixed costs, cloud computing promises to change the future of computing. However, storing a lot of data creates a situation similar to storing a lot of money, attracting m...
Not long ago I worked on a team charged with building up a Java-based REST infrastructure. Our goals were to first support what was then an emerging specification for Java-based RESTful services called JAX-RS. Beyond that, we had thoughts of building an entire framework, both server an...
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 p...
As the IT operations continue to evolve and transform the business towards agility and adaptability to ever changing rules of marketplace, the efficiency of any IT operation is of paramount significance. The phrase ‘time to market' has a completely new meaning in today's dynamic busine...
With IP networks taking on many new challenges from VoIP, rich multimedia and other high-bandwidth consuming and high-priority applications, SMBs need to be sure the network connectivity between their business and Cloud Computing provider is protected with controls for reliable Interne...
Justifying the extra investment for developing a single-purpose service – a service expected to solve only one large business problem - instead of putting the single-purpose logic inside a non-service-oriented application can be challenging. Reuse, the most popular motivation for creat...
Small and medium businesses (SMBs) that have previously considered virtualization in the cloud but decided that it is too expensive or simply not viable should think again. Virtualization and cloud computing enables SMBs to green their operations and build IT infrastructures that are a...
While there’s certainly no shortage of opinions on the future of SOA, the reality is that SOA is very much alive. The core principles of what SOA can do in terms of cost savings, increased productivity, and the virtual elimination of information and application silos won’t go away. How...
ESB products emerged around 2002 from message-oriented middleware (MOM). Faced with market domination by IBM, MOM vendors were the first to jumpstart the ESB concept with the aim of developing a unique selling proposition. They added Web service and EAI capabilities on top of existing ...
If cloud computing talk from the government seemed like lip service at first, it has certainly moved beyond that now. According to an InformationWeek article, the federal government’s General Services Administration (GSA) issued a Request For Quotation (RFQ) for cloud storage, web host...
Cloud computing is slowly gaining credibility and traction in the enterprise world. As giants such as Google and Amazon productize their massive cloud infrastructures, moving enterprise applications to the public cloud seems a more realistic possibility. The advantages of an enterprise...
A couple of patterns that could cause Java heap exhaustion were identified from years of research at IBM. One interesting scenarios was observed when Java applications generate excessive amount of finalizable objects whose classes have non-trivial Java finalizers. A Java finalizer perf...
We can visualize resource starvation using an elaborate rendition of the Dining Philosophers Problem. This classic metaphor of resource allocation among processes was first introduced in 1971 by Edsger Dijkstra in his paper “Hierarchical Ordering of Sequential Processes.” It’s been a m...
The health care industry, including hospitals, has the greatest need for sophisticated information systems because of the enormous amount of data it handles and because of its life-and-death responsibilities. Yet the implementation of large-scale and robust-enough IT systems in public ...
This is a blog that proposes five distinct ways in which cloud computing solutions can strenghten the efforts of development and test teams within an enterprise.
Software-as-a-Service brings together many of the best characteristics of corporate IT systems and the Internet to form a new method of software delivery that is reliable, flexible and cost effective; however, this model is not without its challenges, particularly with regard to profit...
Think in terms of all of your IT assets as part of a portfolio of innovation, and it becomes easier to think of you to put them to creative use that drives operational efficiency.
A standard from OASIS called Web Services for Remote Portlets (WSRP) is used so portlets can be decoupled from a portal. In part one (JDJ, Volume. 13, issue 3) of this article, we introduced the relevant standards and specifications and then demonstrated WSRP's capabilities by consumin...
The mouse was the original idea of Doug Engelbart who was the head of the Augmentation Research Center (ARC) at Stanford Research Institute. Engelbart's philosophy is best embodied, in my opinion, in the design of another device that he invented, the five-finger keyboard - with keys li...
There's no question that Service Oriented Architectures (SOA) will continue to lead the IT and business agenda. After all, an SOA offers a flexible, extensible, and composable approach to reusing and extending existing applications and services, as well as constructing new ones.
Patterns emerge as software engineers begin to notice recurring problems. If you design software and you face a situation in which you ask yourself 'Gee, I can't be the first person facing this problem!' your search for a pattern has just begun. Once you find and apply a pattern, your ...
This article demonstrates the steps performed to implement JSR 168 compliant cooperative portlets using IBM Rational Application Developer V6.0 and WebSphere Portal Server V5.1. The article illustrates passing multiple values from source portlet to target portlet without defining compl...
Our latest book, Developing Web Services for Web Applications, takes you on a guided tour of developing and using Web Services with Rational Developer and WebSphere. This article, an extract from the book, gives you an introduction to the basic steps to create and use a simple Web Serv...
This article is meant to bring you up to speed on Java dumps and their debugging purposes quickly. It assumes that you?re familiar with basic Java, the Java Virtual Machine (JVM), and threading concepts. Some information about Java dumps and their contents is intentionally omitted from...
