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  • Where Has the Java PermGen Gone?

    by Monica Beckwith on  Jul 07, 2014 2

    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”.

  • Building Better Search Engines by Measuring Search Quality

    by Ellen M. Voorhees, Paul Over, Ian Soboroff on  Jul 06, 2014

    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 MVC Framework; Powerful Simplicity

    by Rodrigo Turini on  Jul 02, 2014 2

    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

Preparing for Scale: InfoQ Virtual Roundtable with Cloud Practitioners

Posted by Richard Seroter on  Jun 29, 2014

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.

Book Review: Integration Testing from the Trenches

Posted by Victor Grazi on  Jun 27, 2014

In this important and thorough treatise “Integration Testing from the Trenches” Nicolas Frankel starts from basics and develops integration testing with a casual formalism that's intuitive and fun.

God-Mode in Production Code

Posted by Tal Weiss on  Jun 26, 2014

Takipi is makes it just as easy to debug Java and Scala code in production as it is on your desktop 2

Data Modeling with Key Value NoSQL Data Stores – Interview with Casey Rosenthal

Posted by Srini Penchikala on  Jun 25, 2014

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.

Article Series: Automation in the Cloud and Management at Scale

Posted by Richard Seroter on  Jun 23, 2014

This InfoQ article series focuses on automation tools and ideas for maintaining dynamic pools of compute resources.

Rich Reimer on SQL-on-Hadoop Databases and Splice Machine

Posted by Srini Penchikala on  Jun 19, 2014

InfoQ spoke with Rich Reimer, VP of Marketing and Product Management at Splice Machine about the architecture and data patterns for SQL-on-Hadoop technologies.

Transactional NoSQL Database

Posted by Ken Krupa on  Jun 12, 2014

NoSQL databases are eliminating the impedance mismatch between developers and traditional data models. This article looks at how MarkLogic provides NoSQL benefits with transactional support. 2

A Pragmatic Approach to Scaling Security in the Cloud

Posted by Mark Nunnikhoven on  Jun 06, 2014

Security. Cloud. Two words that are almost always together but rarely happily. Learn why that isn’t the case and what you need to known about securing your critical infrastructure in the cloud. 3

Apache Kafka: Next Generation Distributed Messaging System

Posted by Abhishek Sharma on  Jun 04, 2014

Apache Kafka is a distributed publish-subscribe messaging system. This article covers the architecture, features and characteristics of Kafka and how it compares with other messaging systems. 11

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