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05 November 2009
IBM Monitoring & Diagnostic Tools for Java
The IBM Monitoring and Diagnostic Tools for Java - the Health Center provides live information and recommendations about classes being loaded, the virtual machine environment, garbage collection, locking, and profiling. This article introduces you to the Health Center and shows an example of how it can be used to check the impact of a source code change in a Web application.
Chiphopper simplifies Linux porting of C/C++ apps
With Chiphopper you get significant application porting cost reductions.Chiphopper provides tools to scrub their C/C++ code for portability prior to porting to System p, System i, or System z. There are tools for C and C++ applications as well as new test scripts for Perl and Python.
04 November 2009
Java Web services: Introducing Metro
The Metro Web service stack provides a comprehensive solution for accessing and implementing Web services. It's based on the reference implementations of the JAXB 2.x and JAX-WS 2.x Java™ standards, with added components to support WS-* SOAP extension technologies and actual Web service deployment. This article looks at the basic principles of Metro client and server development.
Next-generation Linux file systems
Linux continues to innovate in the area of file systems. It supports the largest variety of file systems of any operating system. It also provides cutting-edge file system technology. Two new file systems that are making their way into Linux include the NiLFS(2) log-structured file system and the exofs object-based storage system. Discover the purpose behind these two new file systems and the advantages that they bring.
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03 November 2009
Native-looking eSWT Java apps for mobile phones
As mobile platforms become increasingly sophisticated, the demand for mobile computing will increase. In this series, learn about the embedded Standard Widget Toolkit (eSWT). In Part 1: Use simple widgets to quickly build mobile apps. In Part 2: Use advanced controls for your mobile apps.
Pipe Viewer adds a heartbeat to the soul of the machine
Pipe Viewer is one of those little-known gems that once you find it, you can't recall how you lived without it. Find oodles of uses for it in your automation scripts. You can now insert a probe to give you real-time feedback of whats happening in your pipes.
02 November 2009
Tune your Linux-based server for power efficiency
Part 1 introduces the components and concepts you'll need to tune your system for power efficiency. Part 2 compares the five in-kernel governors: performance, powersave, userspace, ondemand, and conservative. Part 3 show you what results you can achieve by power tuning your system.
30 October 2009
IBM Java Developer Kit for Linux
The IBM Developer Kit for Linux, Java 2 Technology Edition is a development kit and runtime environment that contains IBM's just-in-time compiler, enhanced with a unique Mixed Mode Interpreter and a re-engineered Java 2 virtual machine. This update includes enhancements to the JIT compiler, garbage collection technology, JVM serviceability, and an updated XML parser for Java.
29 October 2009
Java development 2.0: Easy EC2
Provisioning an EC2 instance for hosting a Java Web application is a snap. In this Java development 2.0 column, you'll quickly build a Web application that leverages Groovy, Spring, and Hibernate (via the Grails framework) and deploy it on an EC2 instance.
Linux virtualization and PCI passthrough
Processors have evolved to improve performance for virtualized environments, but what about I/O aspects? Discover one such I/O performance enhancement called device (or PCI) passthrough. This innovation improves performance of PCI devices using hardware support from Intel (VT-d) or AMD (IOMMU).
26 October 2009
Meet the Object/XML mapping support in Spring
Within the Java Platform, Enterprise Edition (Java EE) community, Spring is becoming a widely accepted framework. One new feature in the latest release of Spring is its Object/XML (O/X) mapping support. The API enables developers to convert Java objects into XML and vice versa. In this article, learn to use the Object/XML mapping in Spring and explore its advantages.
Virtual appliances and the Open Virtualization Format
virtual appliance fundamentally changes the way software is delivered, configured, and managed. But the power behind virtual appliances lies in the ability to freely share them among different hypervisors. Discover a standard solution for virtual appliance interoperability called the Open Virtualization Format.
15 October 2009
An update on Java Persistence API 2.0
As the JPA Expert Group (JSR-317) nears completion of the JPA 2.0 specification, this article introduces you to some of the new concepts and features in this updated specification. It also explains how you can experience this new functionality with the Apache OpenJPA project, an open-source, robust, high performance, scalable implementation of the JPA specification.
Getting comfortable with Linux plumbing
If you think streams and pipes make a Linux expert sound like a plumber, here's your chance to learn about them and how to redirect and split them. This article grounds you in the basic Linux techniques for redirecting standard IO streams.
output to both stdout and a file.
08 October 2009
Getting comfortable with Linux files and directories
This article grounds you in the basic Linux commands for manipulating files and directories. This article also helps you prepare for Objective 103.2 in Topic 103 of the Linux Professional Institute's Junior Level Administration (LPIC-1) exam 101.
07 October 2009
Cloud computing with Linux and Apache Hadoop
This article shows you how to use Apache Hadoop to build a MapReduce framework to make a Hadoop Cluster and how to create a sample MapReduce application which runs on Hadoop. You will also learn how to set up a time/disk-consuming task on the cloud.
Java development 2.0: You can borrow EC2 too
This article give you a hands-on introduction to developing for and deploying on the Amazon Elastic Compute Cloud (EC2). Learn how EC2 differs from Google App Engine, and leverage an Eclipse plug-in and the concise Groovy language to get a simple Web application up and running quickly on EC2.
30 September 2009
IBM and HP virtualization
Learn about the virtualization capabilities of both HP-UX and AIX. The intent of this article is to educate you and also to help you make informed decisions as to which platform works best for you, from a feature and functionality standpoint and for your long-term strategic goals.
29 September 2009
SwingBuilder and Gwitter (Groovy + Twitter)
This article tackles a topic that strikes fear into most server-side Java developers: Swing. As you'll learn, Groovy's SwingBuilder takes some of the sting out of this powerful yet complex GUI framework. Also see how a Twitter GUI written in Groovy might look like. Doesn't Gwitter (Groovy + Twitter) have a nice ring to it?
28 September 2009
10 things that rocked the Linux world
Much too much has happened with Linux in the last 10 years to do anything like a complete job of listing the important events and technological advances surrounding this operating system. But nevertheless here are 10 important Linux developments that have rocked the world of Linux. I'm sure you can add to this.
23 September 2009
The Clojure programming language
Lisp is a programming language known for its expressiveness and power, but it was often thought of as not being well suited for general use. That has all changed with Clojure, a Lisp dialect that runs on the Java platform. Now you can harness the power of Lisp anywhere you have a Java Virtual Machine handy. In this article, you will see how to get started with Clojure and learn some of its syntax, as you take advantage of the Clojure plug-in for Eclipse to help you along the way.
Learn the Advanced applications of rsync
Keeping multiple machines synced can be challenging. Fortunately, a powerful tool is available to make the task easier: rsync, an open source utility that provides fast incremental file transfer. An important feature of rsync not found in most similar programs/protocols is that the mirroring takes place with only one transmission in each direction.
21 September 2009
Finding the way through the semantic Web with HBase
The Hadoop Database (HBase) is well suited for creating a semantic Web and for extracting existing or computed knowledge. Learn how to represent RDF/XML assertions in an HBase database for scientific articles, and discover how HBase and Bigtable are promoting a new approach to storing and processing data.
18 September 2009
Introduction to the eSWT mobile extension
As mobile platforms become increasingly sophisticated, the demand for mobile computing will increase. Learn about the embedded Standard Widget Toolkit (eSWT). You can use eSWT to develop native-looking Java™ applications for a variety of mobile phones. This article explores how to use eSWT mobile controls. Code examples walk you through using five of the classes in the eSWT mobile extension.
17 September 2009
Mastering Grails: Creating a custom plug-in
In this Mastering Grails installment, Scott Davis shows you how to create your own Grails plug-in. Once you see how effortless it is to create a plug-in, you'll understand why more than 250 Grails plug-ins are available now, with new ones being added all the time.
