In this article, written by Rohit Menon, the author of the book Cloudera Administration Handbook, we will dive deeper into the two major components of Apache Hadoop—HDFS and MapReduce, and will cover the following topics:
Essentials of Hadoop Distributed File System
The read/write operational flow in HDFS
Exploring HDFS commands
Getting acquainted with MapReduce
This article by Eric Tiggeler, the author of Joomla! 3 Beginner's Guide Second Edition, will explore some simple, logical steps you can take to safeguard your site from hackers or data loss.
You've created a great site, customized its design, and added valuable content. That's an investment worth protecting. Rest assured, most Joomla sites will run for years without any hiccups. However, it's a good idea to take some precautions to minimize the risk of your website getting broken into. A few simple measures can make it a lot harder for malicious hackers to get access to your site and mess up its contents. Backing up data regularly can get you out of trouble fast if you run into hardware disasters (such as crashing hard drives) or software trouble (such as installing extensions that somehow mess up your existing site). Fortunately, these problems are rare, but it's definitely worth the little extra time investment needed to minimize risks.
How can you protect your site and how do you get your site up and running again when something has gone wrong? This article contains some essential tips and best practices to keep your site in perfect health (and save yourself some headaches too).Read Keeping the Site Secure in full
In this article by Sujoy Acharya, the author of the Mastering Unit Testing Using Mockito and JUnit, book will explore the Mockito APIs, with advanced Mockito examples and the concept of behavior-driven development with Mockito. This article distills the Mockito framework to its main core and provides technical examples.Read Progressive Mockito in full
This article by Wasim Ahmed, the author of the book Mastering Proxmox, covers advanced virtual machine configurations such as enabling sound, USB devices, and so on.
In this article, we are going to look at the following topics:
- Advanced configuration options for virtual machines
- Nested virtual environment
- Proxmox backup/restore system
- Virtual machine snapshots
- Command-line backup