Authors Posts by mgm-Redaktion

mgm-Redaktion

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The role of IT architecture in times of the digital creation...

Article in German by our colleagues Olaf Terhorst and Dr. Dimitris Matalliotakis in the journal „Management Inspirationen“.

Online supermarket shop.rewe.de, launched with mgm, is test winner!

According to a recent survey of the Berlin based market research institute Deutsches Institut für Preis-Leistungs-Forschung the Rewe online shop, „made by mgm“, that...

Controlling GC pauses with the GarbageFirst Collector – Tuning Guidelines for...

In the previous post I have shown that the GarbageFirst (G1) collector in Java 7 (and also 8ea) does a reasonable job but cannot reach the GC throughput of the “classic” collectors as soon as old generation collections come about. This article focuses on G1’s ability to control the duration of GC pauses. To this [...]

Benchmarking G1 and other Java 7 Garbage Collectors – Tuning Guidelines...

As mentioned in a first post of this series, Oracle’s GarbageFirst (G1) collector has been a supported option in Java 7 for some time. This post examines in more detail the performance of the G1 garbage collector compared to the other collectors available in the Hotspot JVM. I used benchmark tests for this purpose instead [...]

Searching OpenStreetMap Geospatial Data with Solr

We are currently experiencing a Geospatial Revolution that changes in how we navigate from A to B and how we search for locations like a specific sight or restaurants nearby. Geospatial search technology provides such information. This article shows how commercial applications can utilize geospatial search, e.g. for real estate search (qualifing real estates by [...]

Daemonize your Java application with the “Fat Controller”

The Fat Controller is a parallel execution handler that repeatedly runs other programs, a bit like cron and Apache Daemon. It is simple to use yet has some nice features that makes it a great tool for simple and complex background processing tasks. The software is Open Source and licensed under GNU GPL v3. Let’s begin [...]

Why Software Developers Use Adblockers

In May 2013, six publishers of big German online quality news sites started a campaign asking their visitors to turn off their adblockers to “ensure the continuance of a multifaceted journalistic reporting in high quality”. The results? Huge discussions, an increase of adblocker downloads and a reactivation of the paid content debate. mgm technology partners [...]

Designing and Implementing our Camel-based mgm Cosmo Router – Robust and...

We recently finished a subproject to integrate our mgm Cosmo insurance software with an external CRM system. Both systems had to exchange XML documents in a reliable and robust manner in order to keep their data in sync. We used Apache Camel as the middleware to handle all the transfers between the Java and .NET [...]

Tuning Garbage Collection for Mission-Critical Java Applications – Tuning Guidelines for...

I recently had the opportunity to test and tune the performance of several shop and portal applications built with Java and running on the Sun/Oracle JVM, among them some of the most visited in Germany. In many cases garbage collection is a key aspect of Java server performance. In the following article we take a [...]

Securing your Password Database with bcrypt

Do you also spend sleepless nights because you have saved the passwords of your users in clear text or near-clear text (MD5)? We will show you a simple method how you can smoothly migrate your password database to a much more secure format. The transition is transparent to the users and instant, i.e. as soon [...]

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