Prior to JDK8 class metadata and constants would live in an area called the “permanent generation”, contiguous with the Java heap. One problem was that If the class metadata size is beyond the allocated bounds your app would run out of memory. With the advent of JDK8 we no longer have PermGen. The space where it was held has now moved to native memory to an area known as the “Metaspace”.
Search engines are developed using standard sets of realistic test cases that let developers measure the relative effectiveness of alternative approaches. This article talks about NIST's Text Retrieval Conference (TREC) project used to create the infrastructure to measure the quality of search results.
VRaptor's latest version 4 CDI MVC framework is now available. In this article we take a tour of how to use this simple but powerful framework to build web applications
Configuration management tools are a hot topic on IT. InfoQ reached out to users of each of the major tools (Ansible, CFEngine, Chef, Puppet and SaltStack) to ask them about their experiences.
How should organizations plan for a cloud environment and optimize it for efficiency at scale? InfoQ reached out to 3 leading cloud practitioners to uncover practical advice on this topic.
Configuration management is the foundation that makes modern infrastructure possible. Tools that enable configuration management are required in the toolbox of any operations team.
Takipi is makes it just as easy to debug Java and Scala code in production as it is on your desktop 2
In Key Value data stores, data is represented as a collection of key–value pairs. InfoQ spoke with Casey Rosenthal from Basho team about data modeling when using Key Value NoSQL databases.
Mark Burgess and Diego Zamboni introduce CFEngine. They describe the challenges regarding web scale - scale, complexity and knowledge - and how CFEngine helps to tackle those challenges.
This InfoQ article series focuses on automation tools and ideas for maintaining dynamic pools of compute resources.
When and how to apply architecture depends on the context. This article shows how you can give proper attention to architecture in an agile setting. Adaptability and conversation are the essentials. 3
As more organizations expand their use of public cloud services, from early-stage startups to the biggest businesses and governments in the world, the problems of cloud computing at scale will arise.