Unit testing a Java Hadoop job

In my previous post I showed how to setup a complete Maven based project to create a Hadoop job in…

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Broken Glass : Diagnosing Production Cassandra Issues

I just past my second year anniversary at Health Market Science (HMS), and we’ve been working with Cassandra for almost…

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ReSQL?

The NoSQL moniker that was coined circa 2009 marked a move from the “traditional” relational model. There were quite a…

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Big Data Open Source Security

In security there has never (IMHO) been enough open source solutions and Bruce Schneier has written about this several times…

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Distributed System Development Considerations

There are a number of factors to take into account while developing distributed software systems. If you don’t even know…

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Setting up Apache Hadoop Multi – Node Cluster

We are sharing our experience about Apache Hadoop Installation in Linux based machines (Multi-node). Here we will also share our…

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Running Map-Reduce Job in Apache Hadoop (Multinode Cluster)

We will describe here the process to run MapReduce Job in Apache Hadoop in multinode cluster. To set up Apache…

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Hadoop setup on single node and multi node

We will describe Hadoop setup on single node and multi node. The Hadoop  environment setup and configuration will be described…

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What is Big Data – Theory to Implementation

What is Big Data? You may ask; and more importantly why it is the latest trend in nearly every business…

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