List/Grid Tag Archives: Big Data

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Big Data the ‘reactive’ way

A metatrend going on in the IT industry is a shift from query-based, batch oriented systems to (soft) realtime updated systems. While this is associated with financial trading only, ...
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Drones and Big Data

Two weeks ago, I had a conversation with some colleagues where I was postulating a future bull market for drones, as I envisioned a number of commercial applications (food service, ...
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Creating an on-line recommender system with Apache Mahout

Recently we’ve been implementing a recommender system for Yap.TV: you can see it in action after installing the app and going to the “Just for you” tab. We’re using Apache Mahout ...
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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 Java. Of course it wasn’t complete because it is missing the unit test part . 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 the entirety of my career here.   In that time, we have ...
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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 few non-relational databases around prior to 2009, but in ...
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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 in the past, and there’s no need to rewrite the arguments ...
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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 what I am talking about in the first sentence then let me ...
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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 experience about different troubleshooting also and ...
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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 Hadoop in Multinode Cluster, one can read Setting up Apache Hadoop Multi ...
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