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Easy navigation in Eclipse Galileo
Eclipse Galileo introduces several features that allow you to quickly navigate your Java™ technology projects. When combined with existing features, you can get around quickly even in the largest projects.
Introducing Apache Mahout
Once the exclusive domain of academics and corporations with large research budgets, intelligent applications that learn from data and user input are becoming more common. The need for machine-learning techniques like clustering, collaborative filtering, and categorization has never been greater, be it for finding commonalities among large groups of people or automatically tagging large volumes of Web content. The Apache Mahout project aims to make building intelligent applications easier and faster. Mahout co-founder Grant Ingersoll introduces the basic concepts of machine learning and then demonstrates how to use Mahout to cluster documents, make recommendations, and organize content.
Running Linux on the PlayStation 3: More than a toy
Die PlayStation 3 mit Linux als Entwicklungsplattform
Ganglia and Nagios, Part 2: Monitor enterprise clusters with Nagios
This is the second article in a two-part series that looks at a hands-on approach to monitoring a data center using the open source tools Ganglia and Nagios. In Part 2, learn how to install and configure Nagios, the popular open source computer system and network monitoring application software that watches hosts and services, alerting users when things go wrong. The article also shows you how to unite Nagios with Ganglia (from Part 1) and add two other features to Nagios for standard clusters, grids, and clouds to help with monitoring network switches and the resource manager.
Ganglia and Nagios, Part 1: Monitor enterprise clusters with Ganglia
This is the first article in a two-part series that looks at a hands-on approach to monitoring a data center using the open source tools Ganglia and Nagios. In Part 1, see how to install and configure Ganglia, the scalable, distributed monitoring system for high-performance clusters based on a hierarchical design. Also learn how to add more monitoring capability by writing Ganglia plug-ins and by enabling external-source spoofing.
Distributed computing with Linux and Hadoop
Every day people rely on search engines to find specific content in the many terabytes of data that exist on the Internet, but have you ever wondered how this search is actually performed? One approach is Apache's Hadoop, which is a software framework tha
What's new in the Java Portlet Specification V2.0 (JSR 286)?
Learn all about the second version of the Java Portlet Specification (JSR 286). In Version 2.0, the specification and the APIs more than doubled, and it allows you to implement most use cases without the need to have vendor extensions. The portlet program
Networking with Android
Android, a rich platform for application development, offers an attractive set of user interface elements and data management capabilities. It also has a healthy array of networking options for developing applications that connect to the physical world. What would you want to connect to? Perhaps you want to tell the world everything you're doing using Twitter. Or maybe you want to be notified of your turn at the local laundromat or deli counter. If you have an interest in connecting Android to the world about you, read on.
Introduction to Android development
Android is a complete operating environment based upon the Linux® V2.6 kernel. Initially, the deployment target for Android was the mobile-phone arena, including smart phones and lower-cost flip-phone devices. However, Android's full range of computing services and rich functional support have the potential to extend beyond the mobile-phone market. Android can be useful for other platforms and applications. In this article, get an introduction to the Android platform and learn how to code a basic Android application.
Using the Twitter REST API
Twitter is undoubtedly one of the most recent and successful examples of social networking to appear on the World Wide Web. Twitter provides an API so Web developers can enable their users to access the various features that the Twitter site provides. In this article, learn the basics of using the Twitter REST API.
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The
updatefunction allows you to actually tweet using
the REST API. In this case, the function invocation must be accomplished using a
POSTrequest (as opposed to aGET
request). The parameterstatussubmitted with the
POSTrequest contains the text of the actual tweet. -
For starters, you are only allowed a maximum of 100 requests per hour. Although
this limit applies only toGET - 3 more annotations...
Cloud computing with Amazon Web Services, Part 3: Servers on demand with EC2
Learn basic Amazon SimpleDB (SDB) concepts and explore some of the functions provided by boto, an open source Python library for interacting with SDB. In this "Cloud computing with Amazon Web Services" series, learn about cloud computing using Amazon Web Services. Explore how the services provide a compelling alternative for architecting and building scalable, reliable applications. This article introduces you to the virtual servers provided by Amazon Elastic Compute Cloud (EC2). Learn how EC2 can help you configure your applications' computing requirements on the fly and adjust capacity based on demand.
Cloud computing with Amazon Web Services, Part 4: Reliable messaging with SQS
Learn basic Amazon SimpleDB (SDB) concepts and explore some of the functions provided by boto, an open source Python library for interacting with SDB. In this "Cloud computing with Amazon Web Services" series, learn about cloud computing using Amazon Web Services. Explore how the services provide a compelling alternative for architecting and building scalable, reliable applications. In this article, learn about the reliable and scalable messaging service provided by Amazon Simple Queue Service (SQS).
Cloud computing with Amazon Web Services, Part 5: Dataset processing in the cloud with SimpleDB
Learn basic Amazon SimpleDB (SDB) concepts and explore some of the functions provided by boto, an open source Python library for interacting with SDB. In this "Cloud computing with Amazon Web Services" series, learn about cloud computing using Amazon Web Services. Explore how the services provide a compelling alternative for architecting and building scalable, reliable applications. In this article, learn some of the basic concepts and check out some of the functions provided by boto.
Architectural manifesto: An introduction to the possibilities (and risks) of cloud computing
Cloud computing has been a hot topic in the media and in the IT industry. There are critics who say that it's nothing new. In this final edition of Architectural Manifesto, learn about the possibilities and risks of cloud computing.
Cloud computing with Linux
Cloud computing and storage convert physical resources (like processors and storage) into scalable and shareable resources over the Internet (computing and storage "as a service"). Although not a new concept, virtualization makes this much more scalable a
Combine JSF with Dojo widgets to create a better user experience
As a mature Web framework, JavaServer Faces (JSF) provides end-to-end lifecycle management and a rich component model with complete event handling and data binding. Dojo is a popular Asynchronous JavaScript + XML (Ajax) library that provides rich widgets
Transaction strategies: Understanding transaction pitfalls
Transaction processing should achieve a high degree of data integrity and consistency. This article, the first in a series on developing an effective transaction strategy for the Java platform, introduces common transaction pitfalls that can prevent you f
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