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Category Archives for Hadoop

Big Data: Velocity in Plain English

In my previous article I compared the typical trade-off of performance and consistency when using NoSQL and NewSQL databases to support high velocity OLTP and real time analytics. In this article

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Big Database Technology 2 – Architecture

In my previous article I gave a short summary of the meaning of Database Scalability.  In this article I’ll describe the most common architectures used to scale to Big Data sizes.Database Hardware

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Big Database Technology 1: Scalability

Despite multiple challenger technologies (eg. Object Oriented databases), the relational databases from Oracle, IBM and Microsoft have prevailed supreme for over 30 years. This dominance has however

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NoSQL – Cassandra in Plain English

Why Use Cassandra?Cassandra is a highly scalable, distributed database originally built at Facebook. It's now a top-level Apache open source project with widespread adoption, and is deployed at scale by

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Hadoop Vs. Oracle

Although Hadoop and Big Data (whatever that is) are the new kids on the block, don’t be too quick to write off relational database technology. In this article I’ll explain the differences (and

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