Deepak Vohra

Deepak is a Sun Certified Java Programmer and Web Component Developer, and has worked in the fields of XML, Java programming and Java EE for ten years. Deepak is the co-author of the Apress book Pro XML Development with Java Technology and was the technical reviewer for the O'Reilly book WebLogic: The Definitive Guide. Deepak was also the technical reviewer for the Course Technology PTR book Ruby Programming for the Absolute Beginner. Deepak is also the author of the Packt Publishing books JDBC 4.0 and Oracle JDeveloper for J2EE Development, Processing XML Documents with Oracle JDeveloper 11g, EJB 3.0 Database Persistence with Oracle Fusion Middleware 11g, and Java EE Development in Eclipse IDE. Deepak is a Docker Mentor and has published 5 books on Docker and Kubernetes.

All Stories by Deepak Vohra

Comparing PHP and Java

PHP and Java are both languages ranked in the Top 10 in the TIOBE index. In this article, we compare the two languages. PHP is an interpreted language. The Zend Engine that is bundled with the PHP distribution is a scripting engine that interprets PHP scripts as a user has developed them.

Comparing Java and Ruby

Java and Ruby are both open source languages, and both are ranked in the top 20 of the TIOBE index for most popular programming languages. If you want to learn a new language and are trying to decide between these two, let’s explore common differences in syntax and constructs to discover which may be more useful for you.

Comparing Ruby and PHP

Ruby and PHP are both open source languages, and both are ranked in the top 20 of the TIOBE index for most popular programming languages. If you want to learn a new language and are trying to decide between these two, let’s explore common differences in syntax and constructs to discover which may be more useful for you.

Software Features to Avoid in a Production Environment

When developing an application, it’s best practice not to use certain software features in a production environment. These include features related to programming language, the OS, the database, a framework, a web or application server, or a tool. You have to consider the production setup to avoid bugs or server crashes.

Choosing a Linux Distribution for Docker Containers

In the Linux operating system, each Docker container does not use a complete operating system kernel; multiple Docker containers can share the same one. Which Linux distribution should you use as the host? Let’s look at the factors that govern the choice of a host OS, as well as the Linux to run within a Docker container.

Breaking Down Apache’s Hadoop Distributed File System

Apache Hadoop is a framework for big data. One of its main components is HDFS, Hadoop Distributed File System, which stores that data. You might expect that a storage framework that holds large quantities of data requires state-of-the-art infrastructure for a file system that does not fail, but quite the contrary is true.

Comparing Apache Hadoop Data Storage Formats

Apache Hadoop can store data in several supported file formats. To decide which one you should use, analyze their properties and the type of data you want to store. Let's look at query time, data serialization, whether the file format is splittable, and whether it supports compression, then review some common use cases.