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Getting started with Codeception

In this article by Matteo Pescarin , the author of  Learning Yii Testing , we will get introduced to Codeception. Not everyone has been exposed to testing. The ones who actually have are aware of the quirks and limitations of the testing tools they've used. Some might be more efficient than others, and in either case, you had to rely on the situation that was presented to you: legacy code, hard to test architectures, no automation, no support whatsoever on the tools, and other setup problems, just to name a few. Only certain companies, because they have either the right skillsets or the budget, invest in testing, but most of them don't have the capacity to see beyond the point that quality assurance is important. Getting the testing infrastructure and tools in place is the immediate step following getting developers to be responsible for their own code and to test it.

Hadoop Monitoring and its aspects

In this article by Gurmukh Singh , the author of the book  Monitoring Hadoop , tells us the importance of monitoring Hadoop and its importance. It also explains various other concepts of Hadoop, such as its architecture, Ganglia (a tool used to monitor Hadoop), and so on. In any enterprise, how big or small it could be, it is very important to monitor the health of all its components like servers, network devices, databases, and many more and make sure things are working as intended. Monitoring is a critical part for any business dependent upon infrastructure, by giving signals to enable necessary actions incase of any failures. Monitoring can be very complex with many components and configurations in a real production environment. There might be different security zones; different ways in which servers are setup or a same database might be used in many different ways with servers listening on various service ports. Before diving into setting up Monitoring and logging for Hadoop, it is very important to understand the basics of monitoring, how it works and some commonly used tools in the market. In Hadoop, we can do monitoring of the resources, services and also do metrics collection of various Hadoop counters. There are many tools available in the market and one of them is Nagios, which is widely used. Nagios is a powerful monitoring system that provides you with instant awareness of your organization's mission-critical IT infrastructure. By using Nagios, you can: Plan release cycle and rollouts, before things get outdated Early detection, before it causes an outage Have automation and a better response across the organization


In this article by Manoj Waikar , author of the book  Data-oriented Development with AngularJS , we will learn a brief description about various types of persistence mechanisms, local versus hosted databases, what Firebase is, why to use it, and different use cases where Firebase can be useful. We can write web applications by using the frameworks of our choice—be it server-side MVC frameworks, client-side MVC frameworks, or some combination of these. We can also use a persistence store (a database) of our choice—be it an RDBMS or a more modern NoSQL store. However, making our applications real time (meaning, if you are viewing a page and data related to that page gets updated, then the page should be updated or at least you should get a notification to refresh the page) is not a trivial task and we have to start thinking about push notifications and what not. This does not happen with Firebase.

Git Teaches – Great Tools Don't Make Great Craftsmen

This article is written by Ferdinando Santacroce , author of the book, Git Essentials

Saying Hello to Unity and Android

Welcome to the wonderful world of mobile game development. Whether you are still looking for the right development kit or have already chosen one, this article will be very important. In this article by Tom Finnegan , the author of Learning Unity Android Game Development , we explore the various features that come with choosing Unity as your development environment and Android as the target platform. Through comparison with major competitors, it is discovered why Unity and Android stand at the top of the pile. Following this, we will examine how Unity and Android work together. Finally, the development environment will be set up and we will create a simple Hello World application to test whether everything is set up correctly. In this article, we will cover the following topics: Major Unity features Major Android features Unity licensing options Installing the JDK Installing the Android software development kit (SDK) Installing Unity 3D Installing Unity Remote

Extracting data physically with dd

 In this article by Rohit Tamm a and Donnie Tindall , authors of the book  Learning Android Forensics , we will cover physical data extraction using free and open source tools wherever possible. The majority of the material covered in this article will use the ADB methods.

Angular 2.0

Angular 2.0 was officially announced in ng-conference on October 2014. Angular 2.0 will not be a major update to the previous version, but it is a complete rewrite of the entire framework and will include major changes. In this article by Mohammad Wadood Majid , coauthor of the book Mastering AngularJS for .NET Developers , we will learn the following topics: Why Angular 2.0 Design and features of Angular 2.0 AtScript Routing solution Dependency injection Annotations Instance scope Child injector Data binding and templating

Patterns for Data Processing

In this article by Marcus Young , the author of the book Implementing Cloud Design Patterns for AWS , we will cover the following patterns: Queuing chain pattern Job observer pattern

Machine Learning

In this article by Alberto Boschetti and Luca Massaron , authors of the book Python Data Science Essentials , you will learn about how to deal with big data and an overview of Stochastic Gradient Descent (SGD).

Less with External Applications and Frameworks

In this article by Bass Jobsen , author of the book  Less Web Development Essentials - Second Edition , we will cover the following topics: WordPress and Less Using Less with the Play framework, AngularJS, Meteor, and Rails

Welcome to the Spring Framework

In this article by Ravi Kant Soni , author of the book  Learning Spring Application Development , you will be closely acquainted with the Spring Framework. Spring is an open source framework created by Rod Johnson to address the complexity of enterprise application development. Spring is now a long time de facto standard for Java enterprise software development. The framework was designed with developer productivity in mind and this makes it easier to work with the existing Java and JEE APIs. Using Spring, we can develop standalone applications, desktop applications, two tier applications, web applications, distributed applications, enterprise applications, and so on.

Integrating social media

In this article by Karol Krol , the author of the WordPress 4.x Complete , we will look at how we can integrate our website with social media. We will list some more ways in which you can make your site social media friendly, and also see why you'd want to do that in the first place. Let's start with the why . In this day and age, social media is one of the main drivers of traffic for many sites. Even if you just want to share your content with friends and family, or you have some serious business plans regarding your site, you need to have at least some level of social media integration. Even if you install just simple social media share buttons, you will effectively encourage your visitors to pass on your content to their followers, thus expanding your reach and making your content more popular.

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