Techroz is my personal blog. I write articles regarding my daily interaction with Computer Science. My recent interests are BigData, Cloud Computing and improving my programming skills.
General
Hadoop Distributed File System (HDFS)

Hadoop Distributed File System (HDFS)

Apache Hadoop is an open source framework for distributed storage and processing. The distributed storage part of framework is commonly known as Hadoop Distributed Filesystem (HDFS) [1] which is the flagship filesystem for Hadoop. The processing part is known as MapReduce. Hadoop runs on commodity hardware and has the capabilities to store and process very...
Spark vs Hama

Spark vs Hama

Spark is an opensource, in-memory and iterative computing engine that can run on any Hadoop cluster, just like Hama. Recently, it got a lot of attention due to its capabilities to outperform Hadoop in iterative algorithms. Spark provides a clean programming interface and users write distributed programs as if they were doing serial implementation. This...
Configuring third party JAR with native library in Apache Hama

Configuring third party JAR with native library in Apache Hama

Article about running third party libraries with native source code in Eclipse, terminal/CLI and Apache Hama.
H-Store - In memory row based relational database (A complete overview)

H-Store – In memory row based relational database (A complete overview)

H-Store is an open source, in-memory, row based and relational research database. It is a specialized database to handle only OLTP data. It is completely ACID complaint and runs on cluster of shared nothing machines. Multiple single threaded engines coordinate to provide efficient execution of OLTP transactions. H-Store is written from scratch and does not...
DAMN !!! A bug - A 4th iteration nightmare

DAMN !!! A bug – A 4th iteration nightmare

A story of a horrible bug which left me clueless. I had seen many bugs but this one really made me sleepless. Even though it was difficult but I still had fun solving it. Read it you will enjoy it.
Larry Ellison - Founder of Oracle

Larry Ellison – Founder of Oracle

Think of what would we do without the Oracle software. The ERP firm that makes our work (and life!) easier is the brainchild of the smart but slightly strange American business tycoon, Lawrence Joseph “Larry” Ellison. Born in New York City on August 17, 1944, Larry Ellison is the co-founder and chief executive officer of...
Online Behavioral Tracking

Online Behavioral Tracking

If you’ve never been targeted by an ad because of your online behavior, then you’re probably just not paying much attention. According to an informal survey by the Interactive Advertising Bureau (IAB), more than 80% of advertising campaigns in 2009 involved tracking of some sort. The advertising business, in short, loves online tracking just about...
Ayah Bdeir: Building blocks that blink, beep and teach

Ayah Bdeir: Building blocks that blink, beep and teach

Imagine a set of electronics as easy to play with as Legos. TED Fellow Ayah Bdeir introduces littleBits, a set of simple, interchangeable blocks that make programming as simple and important a part of creativity as snapping blocks together.
Drew Dudley: Everyday leadership

Drew Dudley: Everyday leadership

We have all changed someone’s life -- usually without even realizing it. In this funny talk from TEDxToronto, Drew Dudley calls on all of us to celebrate leadership as the everyday act of improving each other’s lives.