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Using Docker to efficiently create multiple tomcat instances

Using Docker to efficiently create multiple tomcat instances

In my previous blog article I gave a short introduction into Docker (“an open-source engine that automates the deployment of any application as a lightweight, portable, self-sufficient container that will run virtually anywhere”). In this article we’ll check out how to create an image for Tomcat 7 and the Java 7 JDK as dependency. So, let’s […]

Checking return values in Java

Checking return values in Java

The other day I made a stupid coding error. It took me the better part of an hour to track it down. We all have those moments. Blame it on a bad night’s sleep, a brain fart, or perhaps the fact that your colleague at the next desk has been whistling that tune from Gotye’s […]

Apache Lucene FlexibleScoring with IndexDocValues

During GoogleSummerOfCode 2011 David Nemeskey, PhD student, proposed to improve Lucene’s scoring architecture and implement some state-of-the-art ranking models with the new framework. Prior to this and in all Lucene versions released so far the Vector-Space Model was tightly bound into Lucene. If you found yourself in a situation where another scoring model worked better for your […]