CFOCoder

Introduction In Part 1 of this series, we installed Hadoop 3.3.6 natively on Ubuntu and configured HDFS for distributed storage. In Part 2, we configured YARN, wrote our first MapReduce program (WordCount), and executed it against the full text of War and Peace. However, Part 2’s analysis revealed a subtle but significant problem: words were...

In Part 1 of this series we installed Hadoop 3.3.6 natively on Ubuntu 24.04 and got HDFS running in pseudo-distributed mode. That gave us a working distributed file system, but Hadoop is much more than storage — its true power lies in processing large datasets in parallel using the MapReduce programming model. In this...

When I started working with Hadoop in a learning environment, the course guide indicated using Linux Mint in a virtual machine. However, I already had Ubuntu 24.04 installed natively on my Dell Vostro with 32 GB of RAM, and it seemed smarter to leverage it directly. In this post I...

PersonaPlex: Mastering Conversational English with NVIDIA and RunPod Improving conversational English requires real-time interaction, but finding a native speaker available 24/7 can be a challenge. In this post, I will show you how I deployed NVIDIA’s latest PersonaPlex-7B-v1 model on RunPod to create a private, high-performance English tutor. What is...

Context: Why Model and Platform Matter As a data scientist and developer, I rely on advanced LLMs (Large Language Models) like Claude Opus, Sonnet, GPT-4.1, and GPT-4o for both architectural planning and daily coding. But I quickly learned that the same model behaves differently depending on the platform—and that maximizing value...