InfoQ Homepage Development Content on InfoQ
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Building Better Search Engines by Measuring Search Quality
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.
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VRaptor MVC Framework; Powerful Simplicity
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
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Virtual Panel: Configuration Management Tools in the Real World
Configuration management tools are a hot topic on the DevOps community and IT organizations in general. InfoQ reached out to users of each of the major tools (Ansible, CFEngine, Chef, Puppet and SaltStack) to ask them about their experiences. Why did they choose a given tool? How was the tool introduced in the organization? These are some of the questions they answered.
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Preparing for Scale: InfoQ Virtual Roundtable with Cloud Practitioners
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. Each panelist has dealt with the sometimes-messy transition from on-premises to cloud, and coached organizations through their journey.
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Article Series: Configuration Management Tools
Configuration management is the foundation that makes modern infrastructure possible. Tools that enable configuration management are required in the toolbox of any operations team, and many development teams as well. Although all the tools aim to solve the same basic set of problems, they adhere to different visions and exhibit different characteristics.
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Book Review: Integration Testing from the Trenches
In this important and thorough treatise “Integration Testing from the Trenches” Nicolas Frankel starts from basic definitions and develops the concepts of integration testing with a casual formalism that's intuitive and fun.
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God-Mode in Production Code
Takipi is trying to level out the playing field between dev and prod debugging by making it just as easy to debug Java and Scala code in production as it is on your desktop. It detects errors and exceptions in server code, provides analytics to help prioritize them, and captures the source code and values of variables that caused them.
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Data Modeling with Key Value NoSQL Data Stores – Interview with Casey Rosenthal
In Key Value data stores, data is represented as a collection of key–value pairs. The key–value model is one of the simplest non-trivial data models, and richer data models are implemented on top of it. InfoQ spoke with Casey Rosenthal from Basho team about the data modeling concepts and best practices when using these NoSQL databases for data management.
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CFEngine's Decentralized Approach to Configuration Management
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 with a fundamentally decentralized and knowledge-oriented approach. An example demonstrates how those ideas translate into practice.
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The Top Automation Tools for Public Cloud at Scale
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 start to arise.
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Rich Reimer on SQL-on-Hadoop Databases and Splice Machine
SQL-on-Hadoop technologies include a SQL layer or a SQL database over Hadoop. These solutions are becoming popular recently as they solve the data management issues of Hadoop and provide a scale-out alternative for traditional RDBMSs. InfoQ spoke with Rich Reimer, VP of Marketing and Product Management at Splice Machine about the architecture and data patterns for SQL in Hadoop databases.
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SaltStack for Flexible and Scalable Configuration Management
Joseph Hall, SaltStack senior engineer, introduces the the remote execution and configuration management system. He describes the tool’s guiding principles: scale, speed and power. Joseph argues that "infrastructure as data" is better than "infrastructure as code". The article finishes with a simple LAMP scenario to demonstrate SaltStack.