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Alec Noller02/16/14
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The Best of the Week (Feb. 7): NoSQL Zone

Make sure you didn't miss anything with this list of the Best of the Week in the NoSQL Zone. This week's best include tips on how to tune the JVM to improve performance in Cassandra, VoltDB's embrace of Groovy, part 1 of a series on building a recommendation engine with Neo4j, and more!

Alec Noller02/16/14
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The Best of the Week (Feb. 7): Big Data Zone

Make sure you didn't miss anything with this list of the Best of the Week in the Big Data Zone. This week's best include some embarrassing code samples from job candidates, data science news from Arthur Charpentier, a review of Andrew Chisholm's "Exploring Data With RapidMiner," and more!

Jose Maria Arranz02/15/14
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RelProxy: A Hot Class Reloader and Scripting for Java and Groovy

RelProxy has three principal features: A class reloader in runtime from source code in Groovy or Java, a scripting environment for Java as a scripting language, and JSR-223 Java Scripting API support. In this article, you'll learn about all three.

Hubert Klein Ikkink02/14/14
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Grails Goodness: Run Forked Tests in IntelliJ IDEA

In the latest Grails releases we can execute our tests in so-called forked mode. This means a separate JVM is started with an isolated classpath from the Grails build system

Ayende Rahien02/12/14
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Quick FAILs in Code Questions

Sometimes it takes very little time to know that a candidate is going to be pretty horrible. As you can probably guess, the sort of questions we ask tend to be “find me this data in this sort of file.” Probably the fastest indication is when they send me projects like these.

Alec Noller02/12/14
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Dev of the Week: Ariya Hidayat

Every week here and in our newsletter, we feature a new developer/blogger from the DZone community to catch up and find out what he or she is working on now and what's coming next. This week we're talking to Ariya Hidayat, engineer at Shape Security and creator of PhantomJS and Esprima.

Mike Stonebraker02/12/14
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VoltDB is a Churning Urn of Groovy Funk

VoltDB is welcoming Groovy into its ecosystem as its first inline procedure language. Code your procedure logic straight into the DDL, bypassing the Java procedure requirements to edit/compile Java source files separately. In this article, you'll learn how to work with VoltDB using Groovy.

Hubert Klein Ikkink02/11/14
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Grails Goodness: Customize Root Element Name Collections for XML Marshalling

When we convert a List or Set to XML using the Grails XML marshalling support the name of the root element is either or .

Alec Noller02/09/14
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The Best of the Week (Jan. 31): NoSQL Zone

Make sure you didn't miss anything with this list of the Best of the Week in the NoSQL Zone. This week's best include a fix for a Neo4j exception, a library called Ottoman for using Couchbase from Node.js, a how-to for setting up a maintenance channel to a Neo4j database, and more.

Marcin Grzejszczak02/08/14
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Introduction to Groovy Runtime Metaprogramming and AST Transforms

I'm very happy to share my presentation regarding Groovy metaprogramming and AST transforms.

Alec Noller02/06/14
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Take Our Survey and be Part of DZone's New Cloud Platform Research Report!

The DZone Research team wants to know what features and services you care about when comparing PaaS and IaaS products. Help DZone get a better idea of the trends in PaaS and IaaS preferences and usage, and you'll be entered to win an iPad Air, Windows Surface, or Samsung Tab 10!

Chris Chang02/06/14
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Managing Disk Space in MongoDB

In the author's previous post on MongoDB storage structure and dbStats metrics, he covered how MongoDB stores data and the differences between the dataSize, storageSize and fileSize metrics. He can now apply this knowledge to evaluate strategies for re-using MongoDB disk space.

Hubert Klein Ikkink02/06/14
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Grails Goodness: Cleaning Up

When we use for example the compile or war command Grails will create files and stores them by default in the project's working directory.

Rishav Rohit02/06/14
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Introduction To Hive's Partitioning

In Hive’s implementation of partitioning, data within a table is split across multiple partitions. Each partition corresponds to a particular value(s) of partition column(s) and is stored as a sub-directory within the table’s directory on HDFS. Today we are going to see how we can load a CSV file to a partitioned table.

Ayende Rahien02/06/14
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The RavenDB Conference: April 7 - 11

The author is very proud to announce that we are having the first RavenDB conference from April 7 – 11 in Raleigh, NC. You can register for the conference right now and please do so, because we have limited number of places.